Patent Publication Number: US-2023148799-A1

Title: Container for food processing system

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application claims priority to and benefit of U.S. Provisional Application No. 63/280,351, filed Nov. 17, 2021, entitled CONTAINER FOR FOOD PROCESSING SYSTEM, the entire contents of which are incorporated herein by reference for all purposes. 
    
    
     TECHNICAL FIELD 
     Aspects of the present disclosure relate to a blender and, more particularly, to a container of a blender configured to receive one or more food items therein. 
     BACKGROUND 
     Blenders are commonly used to process many different food products, including liquids, solids, semi-solids, gels and the like. It is well-known that blenders are useful devices for blending, cutting, and dicing food products in a wide variety of commercial settings, including home kitchen use, professional restaurant or food services use, and large-scale industrial use. They offer a convenient alternative to chopping or dicing by hand, and often come with a range of operational settings and modes adapted to provide specific types or amounts of food processing, e.g., as catered to particular food products. 
     When blending thick or frozen ingredients, the ingredients will often stick to the sidewalls of the container, resulting in areas of unprocessed food. This accumulation at the sidewalls of the container, also known as cavitation, occurs because the ingredients are too thick to form a vortex within the container which typically facilitates movement of the ingredients towards a food processing blade during a blending operation. Accordingly, there is a need for efficient and unobtrusive ways to release accumulated ingredients along the sidewalls for further processing during blending operations. 
     SUMMARY 
     The application, in various implementations, addresses deficiencies associated with the performance of blenders to produce more uniform processed food. 
     This application, in some implementations, describes an exemplary attachment for a food processing system that can blend thick and frozen ingredients and minimize the accumulation of the ingredients on the sidewalls of the container, resulting in more uniform processed food. In one configuration, the attachment includes a pump configured to direct a fluid, e.g., air, toward the sidewalls and/or blades. The pump is arranged to take in the fluid via an inlet when an actuator is extended and/or pulled up which, in some configurations, fills a pump reservoir. If the ingredients stick to or accumulate on the sidewalls of the container, a user can actuate and/or press down on the actuator to expel the fluid in the pump chamber via an outlet into a region of the interior chamber of the container. Such an action releases the ingredients from the sidewalls to be processed again to form a uniform food product. A user-operated and/or actuated fluid agitation system or method provides at least a technical advantage of enabling more efficient, yet less obtrusive, releasing of ingredients from a sidewall during the blending process. 
     In one aspect, an attachment for use with a food processing system includes a container body having a sidewall, a first end configured to be mounted to a food processing base, and a second end remote from the first end. The first end is open and the second end is partially closed. The attachment further includes a first agitating member including one or more blades which is receivable at the first end. In addition, the attachment includes a second agitating member receivable at the second end. The second agitating member includes a fluid agitator configured to direct a fluid to one or more portions of the container body. 
     In some implementations, the one or more portions of the container body includes at least one of the sidewall, the first agitating member, the second agitating member, the first end, and the second end. The fluid agitator may include a pump. The fluid agitator may include a manual actuator to direct the fluid to the one or more regions. In some implementations, the fluid agitator includes a diaphragm. The fluid may include air, water, and/or an ingredient-derived or related fluid such as milk, juice, coffee, and so on. 
     In some implementations, the fluid agitator includes an electronic actuator to direct the fluid to the one or more regions. The fluid agitator may include an inlet in fluid communication with an exterior atmosphere surrounding the container body. The inlet is in fluid communication with a chamber the container body. In one implementation, the chamber is defined by the container body. 
     In some implementations, the one or more blades of the first agitating member include a first plurality of holes configured to expel fluid toward the sidewall to release food from the sidewall. The second agitating member may include a blade and/or paddle. The blade and/or paddle may include a second plurality of holes configured to direct the fluid toward the chamber. 
     In another aspect, an attachment for use with a food processing system includes a container body having a sidewall, a first end configured to be mounted to a food processing base, and a second end remote from the first end. The first end is open and the second end includes an end wall oriented transverse to the sidewall making a unitary structure. The attachment further includes a chamber defined by the container body and a first agitating member including one or more blades and receivable at the first end. Further, the attachment includes a second agitating member receivable at the second end. The second agitating member includes a fluid agitator configured to direct a fluid to one or more regions of the chamber of the container body. 
     In some implementations, the fluid agitator includes an inlet in fluid communication with an exterior atmosphere surrounding the container body. The inlet may be in fluid communication with a chamber the container body. The one or more blades of the first agitating member may include a first plurality of holes configured to expel fluid toward the sidewall to release food from the sidewall. The second agitating member may include a blade and/or paddle. The blade and/or paddle may include a second plurality of holes configured to direct the fluid toward the chamber. The fluid agitator may include a pump. This application, various implementations, describes an exemplary attachment for a food processing system that can blend thick or frozen ingredients and/or minimize the accumulation of the ingredients to the sidewalls of the container, resulting in more uniform processed food. In some implementations, the attachment includes a vibrator to vibrate the container while the food is being processed to loosen or scrape ingredients that are stuck to the sidewalls of the container. Further, the attachment may include a motor on top that automatically rotates an agitator including paddles or blades in one or more directions during operations of the food processor. Such an action releases the ingredients from the sidewalls to be processed again to form a uniform food product. Motor-operated or spring-actuated fluid agitation systems or methods provide at least a technical advantage of enabling more efficient, yet less obtrusive, releasing of ingredients from a sidewall during the blending process. 
     In a further aspect, an attachment for use with a food processing system includes a container body having a sidewall, a first end configured to be mounted to a food processing base, and a second end remote from the first end. The first end is open and the second end includes an end wall oriented transverse to the sidewall making a unitary structure. The attachment further includes a chamber defined by the container body and a first agitating member including one or more blades and receivable at the first end. Further, the attachment includes a fluid agitator located at an exterior of the chamber and configured to direct a fluid to one or more regions of the chamber of the container body. 
     This application, various implementations, also describes an exemplary attachment for a food processing system that can blend thick or frozen ingredients and/or minimize the accumulation of the ingredients to the sidewalls of the container, resulting in more uniform processed food. In some implementations, the attachment includes a vibrator to vibrate the container while the food is being processed to loosen or scrape ingredients that are stuck to the sidewalls of the container. Further, the attachment may include a motor on top that automatically rotates an agitator including paddles or blades in one or more directions during operations of the food processor. Such an action releases the ingredients from the sidewalls to be processed again to form a uniform food product. Motor-operated or spring-actuated fluid agitation systems or methods provide at least a technical advantage of enabling more efficient, yet less obtrusive, releasing of ingredients from a sidewall during the blending process. 
     In one aspect, an attachment for use with a food processing system includes a container body having a sidewall, a first end configured to be mounted to a food processing base, and a second end remote from the first end. The first end is open and the second end includes an end wall oriented transverse to the sidewall to make a unitary structure. The attachment further includes a first agitator having one or more blades which are receivable at the first end. Also, the attachment includes a second agitator receivable at the second end. The second agitator is extendable into the chamber through the second end. Further, the attachment includes an electric motor operably coupled to the second agitator such that the second agitator rotates in response to rotation of the electric motor. The electric motor rotates in a first direction during a first period of operation of the food processing system and rotates in a second direction opposite the first direction during a second period of operation of the food processing system. 
     In some implementations, the electric motor may be located exterior of the container body. The electric motor may be coupled to the second agitator via a drive shaft such that a portion of the second agitator is positioned within the chamber. One rotation of the electric motor may correspond to one rotation of the second agitator. The electric motor may be coupled to the second agitator via a plurality of gears. The plurality of gears may enable one rotation of the electric motor to correspond to less than one rotation of the second agitating member. The plurality of gears may enable one rotation of the electric motor to correspond to more than one rotation of the second agitating member. The drive shaft of the electric motor may include at least one tooth engaged with a lock. The second end may be closed to the surrounding environment by the device. 
     In another aspect, an attachment for use with a food processing system, includes a container body having a sidewall, a first end configured to be mounted to a food processing base, and a second end remote from the first end. The first end is open and the second end is at least partially closed. Further, the attachment includes a first agitator having one or more blades that is receivable at the first end. In addition, the attachment includes a vibrator in contact with the container body. The vibrator is configured to vibrate the container body at least during a part of an operation of the food processing system. 
     In some implementations, the vibrator includes a sonic vibrator. The vibrator may include a piezo electric crystal. The vibrator may include an eccentric rotating mass (ERM) actuator. The vibrator may be located on the sidewall. The vibrator may be located at the second end exterior of the container body. The vibrator may be connected to the food processing base. 
     In a further aspect, an attachment for use with a food processing system includes a container body having a sidewall, a first end configured to be mounted to a food processing base, and a second end remote from the first end. The first end is open and the second end is at least partially closed. The second end includes an end wall that is oriented transverse to the sidewall to make a unitary structure. Further, the attachment includes a first agitator having one or more blades that is receivable at the first end. The first agitator is arranged to rotate in a first direction. The attachment also includes a second agitator receivable at the second end and a rotatable shaft coupled to the first agitator that is arranged to rotate in the first direction. In addition, the attachment includes a mainspring that is operably coupled to the shaft and the second agitator. The mainspring is rotated in the first direction into a compressed configuration in response to the rotation of the shaft in the first direction. Also, the mainspring rotates in a second direction opposite the first direction and unwinds toward a decompressed configuration after the shaft stops rotating in the first direction to, thereby, rotate the second agitator in the second direction. 
     In some implementations, the mainspring resides within a spring housing adjacent to the second agitator. The spring housing may be integrally formed with a portion of the second agitator. The spring housing may be detachably connectable to the second agitator. The mainspring may be connected to the shaft via a slipping clutch. The slipping clutch may include a bridle ring. The shaft may operably couple the first agitator to the second agitator. 
     This application, in various implementations, also describes an exemplary attachment for a food processing system that can blend thick or frozen ingredients and/or minimize the accumulation of the ingredients to the sidewalls of the container, resulting in more uniform processed food. In one configuration, the attachment includes at least one flexible paddle connected to the cutting blades that rotates concurrently while the cutting blades rotate to loosen or scrape ingredients that are stuck to the sidewalls of the container. Therefore, those unprocessed ingredients will move toward the cutting blades to be processed again, enabling a more efficient release of ingredients from a sidewall during the blending process.. 
     In one aspect, the application includes an exemplary attachment for a food processing system that includes a spiral and/or helical structure which is extendable through the container and is connected to the cutting blades. The spiral structure has various diameters from one end to the other end to create turbulent flow while rotating concurrently as the cutting blades rotate during operations of the food processing system. Such an action releases ingredients from the sidewalls to be processed again to form a uniform food product. 
     In another aspect, an attachment for use with a food processing system includes a container body having a sidewall, a first end configured to be mounted to a food processing base, and a second end remote from the first end. The first end is open and the second end is at least partially closed. Further, the attachment includes a first agitator having one or more blades and a second agitator. The second agitator includes one or more flexible sections and is extendable through the container body. The first agitator and the second agitator are connected to each other and are receivable at the first end. 
     In some implementations, the second end of the container body is entirely closed to a surrounding and/or ambient environment. The second end may include an end wall oriented transverse to said sidewall. The one or more flexible sections of the second agitator may include at least one paddle. The at least one paddle may be in contact with the sidewall. 
     In some implementations, the second agitator extends along the sidewall of the container body. The second agitator may be configured to remove at least a portion of a food attached to the sidewall during operation of the food processing system. The second agitator may be configured to stir a food during the operation of the food processing system. The attachment may further include a motor to activate and/or rotate the first agitator and/or the second agitator. The first agitator and the second agitator may operate concurrently and/or simultaneously. 
     In a further aspect, an attachment for use with a food processing system includes a container body having a sidewall, a first end configured to be mounted to a food processing base, and a second end remote from the first end. The first end is open and the second end is at least partially closed. Further, the attachment includes a first agitator having one or more blades and a second agitator including a spiral structure. The second agitator is extendable through the container body. The first agitator and the second agitator are receivable at the first end. 
     In some implementations, the spiral structure has a larger diameter near the first end and smaller diameter near the second end. In certain implementations, a diameter of the spiral structure increases from the first end as it extends toward the second end. In other implementations, a diameter of the spiral structure decreases from the first end as it extends toward the second end. The second agitator may include a first portion close to the first end, a middle portion having the spiral structure, and a third portion close to the second end. 
     In some implementations, the second end of the container body is entirely closed to a surrounding and/or ambient environment. The second agitator may be configured to stir a food during the operation of the food processing system. The second agitator may be configured to remove at least a portion of a food attached to the sidewall by providing a turbulent flow in the container during operation of the food processing system. The attachment may include a connector to connect the first member, the second agitator, and the base. The attachment may further include a motor to activate the first member and the second agitator. 
     Any two or more of the features described in this specification, including in this summary section, may be combined to form implementations not specifically described in this specification. Furthermore, while this specification may refer to examples of systems, methods, and devices related to food processors, such techniques also apply equally to other types of ingredient or material blending techniques. 
     The details of one or more implementations are set forth in the accompanying drawings and the following description. Other features and advantages will be apparent from the description and drawings, and from the claims. 
    
    
     
       BRIEF DESCRIPTION OF THE FIGURES 
         FIG.  1    is a front view of an example of a food processing system; 
         FIG.  2    is a perspective view of an example of a base of the food processing system; 
         FIG.  3    is a sectioned view of an attachment connectable to the base of the food processing system; 
         FIG.  4    is a front view of an attachment connectable to the base of the food processing system; 
         FIGS.  5 A,  5 B,  5 C,  5 D,  5 E and  5 F  are various views of different agitating members suitable for use with the attachment; 
         FIG.  6    is a front view of an attachment including a rotatable dial; 
         FIG.  7    is a perspective view of a lock associated with the agitating member; 
         FIG.  8 A  includes various views of a lock associated with the agitating member in a neutral or extended position; 
         FIG.  8 B  includes various views of a lock associated with the agitating member in a retracted position; 
         FIG.  9    is a front view of an attachment including a rotatable and translatable manual input device; 
         FIG.  10    is a front view of an attachment including a rotatable and translatable manual input device; 
         FIG.  11    is a front view of an attachment including an agitating member that is separable from the manual input device and the container; 
         FIG.  12    is a detailed cross-sectional view of the interface between the agitating member and the manual input device; 
         FIG.  13    is a front view of an attachment including an agitating member that is separable from the manual input device and the container; 
         FIG.  14    is a detailed cross-sectional view of the interface between the agitating member and the shaft; 
         FIG.  15    is a front view of an attachment including an agitating member that is separable from the manual input device and the container; 
         FIG.  16    is a front view of an attachment including an agitating member that is separable from the manual input device and the container; 
         FIG.  17    is a front view of an attachment including an agitating member; 
         FIG.  17 A  is a front view of an attachment including a cap member; 
         FIG.  18    is a front view of an attachment including an agitating member positioned in overlapping arrangement with the cutting assembly; 
         FIG.  19    is an exploded perspective view of an attachment including an agitating member positionable in overlapping arrangement with the cutting assembly; 
         FIG.  20    is a perspective view of a food processing system including an agitating member positioned in overlapping arrangement with the cutting assembly; 
         FIG.  21    is a front view of an attachment including a displacement member in a first configuration; 
         FIG.  22    is a front view of the attachment of  FIG.  21    when the displacement member is in a second configuration; 
         FIG.  23 A  is a front view of an attachment including a fluid agitator and/or pump; 
         FIG.  23 B  is a front view of an attachment including a fluid agitator and/or pump; 
         FIG.  23 C  is a zoomed-in side view of a sidewall and fluid channel of the attachment of  FIG.  23 B ; 
         FIG.  24    is a front view of the fluid agitator and/or pump of  FIGS.  23 A-C ; 
         FIG.  25    is a front view of an attachment including a fluid agitator and/or a pump according to an implementation; 
         FIG.  26    is a front view of a fluid agitator and/or a pump according to an implementation; 
         FIG.  27    is a front view of an attachment including a device; 
         FIG.  28 A  is a front view of an attachment including a vibrator; 
         FIG.  28 B  is a zoomed-in side view of the vibrator of the attachment of  FIG.  28 A ; 
         FIG.  29    is a front view of an attachment including a vibrator; 
         FIG.  30    is a front view of an attachment including a vibrator; 
         FIG.  31 A  is a perspective view of a DC motor; 
         FIG.  31 B  is an exploded view of the Dc motor of  FIG.  31 A ; 
         FIG.  32    side view of a food processor system including an attachment having a spring driven second agitator; and 
         FIG.  33    is a top down view of a main spring within a spring housing arranged to drive the rotation of the second agitator of  FIG.  32   ; 
         FIG.  34    is a front view of another example of a food processing system; 
         FIG.  35    is a perspective view of an example of a base of the food processing system; 
         FIG.  36    is a front view of an attachment connectable to the base of the food processing system; 
         FIG.  37    is a front view of an attachment connectable to the base of the food processing system; 
         FIG.  38 A  is a front view of an example of a food processing system; 
         FIG.  38 B  is a front view of an attachment connectable to the base of the food processing system of  FIG.  5 A ; 
         FIG.  39    is a front view of an attachment connectable to the base of the food processing system; and 
         FIGS.  40 A- 40 C  are examples of a second agitator of an attachment connectable to the base of the food processing system of  FIG.  39   . 
     
    
    
     The detailed description explains implementations of the invention, together with advantages and features, by way of example with reference to the drawings. 
     DETAILED DESCRIPTION 
     Referring now to  FIGS.  1  and  2   , an example of a multi-functional food processing system 20 is illustrated. In general, the food processing system 20 can be adapted to perform any food processing or blending operation including as non-limiting examples, dicing, chopping, cutting, slicing, mixing, blending, stirring, crushing, or the like. Although the food processing system illustrated and described herein is a personal blender system, other food processing systems are within the scope of the present disclosure. 
     The food processing system  20  includes a food processing base  22  having a body or housing  24  within which a drive unit (not shown) and at least one controller not shown) are located. The drive unit includes at least one rotary component, such as a drive coupler  26  (see  FIG.  2   ) for example, driven by a motorized unit (not shown) located within the housing  24 . The food processing base  22  may additionally include a control panel or user interface  28  (best shown in  FIG.  1   ) having one or more inputs  29  for turning the motorized unit on and off and for selecting various modes of operation, such as pulsing, blending, or continuous food processing. However, implementations where the food processing system  20  does not include a user interface, such as where the food processing system  20  is operable via an application and implementations where the application of a force to a switch or other component formed in the food processing base  22  (is sufficient to initiate operation of the motorized unit such as in push to operate systems) for example, are also within the scope of the disclosure. The at least one drive coupler  26  is configured to engage a portion of an attachment  30  coupled to the food processing base  22  for the processing of food products located within an interior of the attachment  30 . This will become more apparent in subsequent FIGs. and discussion. 
     One or more attachments  30  varying in size and/or functionality may be configured for use with the food processing base  22 . An example of an attachment  30  suitable for use with the food processing base  22  is illustrated in  FIGS.  3  and  4   . As shown, the attachment  30  includes an inverted jar or container  32 . The container  32  typically includes a body having a first open end  34 , a second closed end  36 , and one or more sidewalls  38  extending between the first end  34  and the second end  36 . The sidewalls  38  in combination with one or more of the ends  34 ,  36  of the container  32  define a hollow interior or processing chamber  40  of the container  32 . In an implementation, the container  32  is a “personal blending container” or “cup” that has a first configuration when separated from the food processing base  22  and a second inverted configuration when coupled to the food processing base  22 . 
     In such implementations, the attachment  30  further includes a first agitating member  42 , such as a cutting assembly, configured to removably couple to the first open end  34  of the container  32  to seal the processing chamber  40 . In the illustrated, non-limiting implementation, the cutting assembly  42  includes a body  44  and one or more blades  46  rotatable about an axis X relative to the body  44 . When the cutting assembly  42  is connected to the end  34  of the container  32 , the first agitating member including the least one blade  46  is disposed within the processing chamber  40  of the container  32 . The container  32  and the cutting assembly  42  may be threadably coupled together; however, it should be understood that other mechanisms for removably connecting the container  32  and the cutting assembly  42 , such as a bayonet connection or a clip for example, are also contemplated herein. 
     In each of the various attachment configurations, the cutting assembly  42  is configured to operably couple to the food processing base  22  of the food processing system  20 . A driven coupler  48  (see  FIG.  3   ) associated with the cutting assembly  42  is positioned at an exterior of the attachment  30 . The at least one drive coupler  26  is configured to engage the driven coupler  48  to rotate the at least one blade  46  about the axis X to process the food products located within the chamber  40  of the container  32 . It should be understood that the attachment  30  including an inverted container  32  and a cutting assembly  42  is intended as an example only, and that other attachments, are also contemplated herein. 
     In implementations where the attachment  30  includes an inverted container  32 , the attachment  30  may include one or more contact members  49  ( FIG.  3   ), such as tabs for example, positioned about the periphery of the attachment  30 . It should be understood that an attachment  30  having any number of contact members  49  is within the scope of the disclosure. In implementations where the attachment  30  includes an inverted container  32  the contact members  49  may extend outwardly from the container  32 , the cutting assembly  42 , or both. 
     The contact members  49  of the attachment  30  are configured to cooperate with a mounting area  50  (see  FIG.  2   ) of the food processing base  22  to couple the attachment  30  to the food processing base  22 . As shown, the mounting area  50  includes one or more receiving slots  52  within which each of the plurality of contact members  49  of the attachment  30  is receivable. The attachment  30  may be configured to slidably connect to the food processing base  22  of the food processing system  20 . Alternatively, or in addition, the attachment  30  may be configured to rotatably connect to the food processing base  22  such that the attachment  30  is locked relative to the food processing base  22 . However, it should be understood that any suitable mechanism for coupling the attachment to the food processing base  22  is within the scope of the disclosure. 
     With continued reference to  FIGS.  3  and  4   , and further reference to FIGS. reference now to  FIGS.  5 - 16   , an attachment  30  of the food processing system  20  suitable for use to process a thick or frozen mixture is described in more detail. As shown, the attachment  30  includes a second agitating member  60  at least partially disposed within the processing chamber  40  of the container  32 . As shown, this additional second agitating member  60  includes a shaft  62  extending through the second, sealed end  36  of the container  32 . As a result, the second agitating member  60  is arranged opposite the open end  34  of the container  32 , and therefore the cutting assembly  42  disposed at the open end  34  of the container  32 . The second agitating member  60  is coupled to the shaft  62  such that the shaft  62  drives rotation of the second agitating member  60  about an axis of rotation axis Y. Although the shaft  62  is described herein as being a part of the agitating member  60 , in other implementations, the shaft  62  may be separate from the agitating member  60 . Axis Y may but need not be coaxial with axis X of the cutting assembly  42 . 
     Any suitable second agitating member  60  is contemplated herein. In the illustrated, non-limiting implementations, the second agitating member  60  includes a base  64  mountable about the shaft  62  and having at least one prong or paddle  66  extending at a nonparallel angle from the base  64 , such as towards the open end  34  of the container  32 . The base  64  and the one or more paddles  66  may be integrally formed as a unitary structure, or alternatively, may be multiple components connected together to form the second agitating member  60 . Further, the base  64  and/or the paddles  66  may be integrally formed with the shaft  62 , or alternatively, may be removably mounted thereto. Although the second agitating member  60  shown in  FIGS.  3  and  4    includes two paddles  66 , it should be understood that any suitable number of paddles, such as a single paddle, or alternatively, three, four (see  FIGS.  5 C and  5 E  ), five, or more paddles  66  are within the scope of the disclosure. Further, the paddles  66  may be spaced equidistantly about the axis of rotation Y or may be staggered based on a desired operation. 
     Examples of various configurations of a second agitating member  60  are illustrated in  FIGS.  5 A- 5 F . As shown, the paddles  66  of the second agitating member  60  may have any contour or shape and may extend over only a portion of the length of the container  32 , or alternatively, over the substantially entire length of the container  32 . When a paddle  66  extends over the entire length of the container  32 , the distal end of the paddle  66  may be located directly adjacent the body  44  of the cutting assembly  42 . In implementations where one or more of the paddles  66  overlap the at least one blade  46  of the cutting assembly  42 , such as in  FIGS.  5 D and  5 E , the paddles  66  may be disposed radially outward of the at least one blade  46  to avoid interference therewith. Further, when the second agitating member  60  has multiple paddles  66 , the configuration of the paddles  66  may be substantially identical or may vary. In some implementations, as shown in  FIG.  5 B , a portion of the paddles  66  located remotely from the base  64 , such as near the distal end of the paddles  66  for example, may be joined together to enhance the stability or rigidity of the paddles  66  as the second agitating member  60  is rotated. However, in other implementations, the paddles  66  are only connected to one another via the base  64 . 
     A clearance defined between the one or more paddles  66  of the second agitating member  60  and the sidewall  38  of the container  32  may be selected to prevent large food particles from becoming trapped between the second agitating member  60  and the sidewall  38 . In an implementation, at least a portion of one of the paddles  66  has an angle generally complementary to the sidewall  38  of the container  32 . As a result, when the second agitating member  60  is positioned within the container  32 , the paddle  66  and the sidewall  38  may be parallel to one another, with only a minimal clearance defined there between. Further, by designing one or more of the paddles  66  to match a contour of the adjacent portion of the container  32 , the second agitating member  60  may only be insertable into the processing chamber  40  when in a specific orientation. As a result, incorrect installation of the second agitating member  60  may be avoided. However, in other implementations, at least a portion of one of the paddles  66  may be arranged at a non-parallel angle relative to the interior of the sidewall  38  of the container  32 . A non-parallel orientation may be used be used to eject food and limit or prevent scraping of the interior of the sidewall  38 . 
     In an implementation, best shown in  FIG.  5 F , a wiper or scraper  68  extends radially outwardly from one or more surfaces of the second agitating member  60  facing an adjacent surface of the container  32 . In the illustrated, non-limiting implementation, a wiper  68  is arranged at the exterior of each paddle  66 . However, implementations where a wiper  68  is formed at only a single paddle  66 , or at the base  64  of the second agitating member  60  are also contemplated herein. Alternatively, or in addition, one or more ribs  70  may extend radially inwardly from the one or more paddles  66  of the second agitating member  60 . Although the rib  70  shown in  FIG.  3    is connected to the base  64  and extends over the substantially entire height of the paddle  66 , implementations where the rib  70  extends over only a portion of the height of the paddle  66 , and implementations where the rib  70  is located at any position relative to the paddle  66  and does not connect to the base  64  are also within the scope of the disclosure. 
     To retain the second agitating member  60  at a desired position within the chamber  40 , a mounting member  71  may be connected to a portion of the container  32 , such as an exterior  11  of the second end  36  for example. The mounting member  71  includes a through hole (not shown) configured to receive a portion of the shaft  62 . When coupled to the container  32 , the mounting member  71  is rigidly affixed to the body of the container  32 . Accordingly, the second agitating member  60  is configured to rotate about the axis Y relative to the stationary mounting member  71 . The mounting member  71  may be connected to the container body via any suitable means, such as via one or more fasteners for example. 
     In an implementation, the second agitating member  60  is manually operated via an input from a user. As shown, a manual input device  72 , such as a dial or cap for example, is operably coupled to the second agitating member  60  and/or the shaft  62  about which the second agitating member  60  is mounted. The manual input device  72  is connected to the shaft  62  at a location external to the container  32 . In the non-limiting implementations illustrated in  FIGS.  1 ,  3 -  4  and  6   , the manual input device  72  and the second agitating member  60  are disposed on opposite sides of the mounting member  71 . However, in other implementations, the attachment  30  may not have the mounting member  71  and the manual input device  72  may be located near or directly adjacent to the second sealed end  36  of the container  32 . Further, it should be understood that a mounting member  71  may additionally be included in any of the implementations of the attachments  30  illustrated and described herein. 
     In an implementation, illustrated in  FIG.  6   , the manual input device  72  is rotatable in one or more directions to drive rotation of the second agitating member  60  about axis Y to “scrape” or loosen food stuck at the sidewall  38  of the container  32 . Alternatively, or in addition, in some implementations, the manual input device  72  may be operable to translate the second agitating member  60  along the axis Y, such as to push food downwardly towards the cutting assembly  42 . In such implementations, the manual input device  72  may be threadably coupled to the container  32  (see  FIG.  9   ), such that rotation of the manual input device  72  causes the second agitating member  60  to not only rotate but also translate, resulting in movement of the second agitating member  60  along a helical path. In other implementations, as shown in  FIG.  10   , the manual input device  72  may be movably mounted to the container  32  using a biasing mechanism (not shown). Accordingly, when a downward force is applied to the manual input device  72 , the second agitating member  60  moves downwardly, away from the second end  36  of the container  32 , towards the first end  34  of the container  32 . When the force is released from the manual input device  72 , the biasing force of the biasing mechanism, causes the manual input device  72  and therefore the second agitating member  60  to translate upwardly along the Y axis towards a neutral position, such as adjacent the second end  36  of the container  32 . 
     The manual input device  72  may be directly connected to the second agitating member  60  such that a single turn of the manual input device  72  results in a corresponding single turn of the second agitating member  60 . However, implementations where the manual input device  72  is indirectly coupled to the second agitating member  60 , such as via a gearing mechanism, are also within the scope of the disclosure. In such implementations, a single turn of the manual input device  72  may result in several turns of the second agitating member, or alternatively, less than one turn of the second agitating member  60 . 
     In an implementation, the second agitating member  60  does not move during operation of the cutting assembly  42 . To prevent undesired movement of the second agitating member  60  relative to the container  32  during operation of the cutting assembly  42 , the attachment  30  may further include a lock  76  operably coupled to the second agitating member  60 . In an implementation, the lock  76  includes a ratchet or a one-way clutch device associated with the shaft  62  and/or the manual input device  72 . In such implementations, the ratchet  76  may be a separate device mounted to the second end of the container  32 , such as between the container  32  and the manual input device  72 , as shown in  FIG.  7   . Alternatively, the features of the ratchet  76  may be integrally formed into the second end  36  of the container  32  (see  FIGS.  8 A and  8 B ). As shown in  FIG.  7   , the one or more ratchet teeth  78  extend from the manual input device  72  for engagement with the grooves  80  of the ratchet  76  mounted at the second end of the container  32 . As a result of the configuration of the grooves  80  and the teeth  78 , the ratchet  76  restricts rotation of the manual input device  72 , shaft  62 , and second agitating member  60  in a first direction about the axis Y. In such implementations, during operation, the cutting assembly  42  may be configured to rotate about axis X in the direction of restricted rotation of the second agitating member  60  about axis Y. Further, when the manual input device  72  is rotated in the second, allowable direction about the axis Y, the engagement of the teeth  78  with each groove  80  in the ratchet  76  will provide a haptic or tactile feedback to a user. In an implementation, a pad (not shown) formed from an elastic material, such as silicone for example, may be included adjacent the interface between the teeth  78  and the grooves  80  to soften or limit the noise and/or vibration of the haptic feedback provided to a user. 
     In another implementation, illustrated in  FIGS.  8 A and  8 B , the lock  76  includes a plurality of first teeth  82  extending from the second end  36  of the container  32 . The manual input device  72  similarly includes a plurality of second teeth  84  positionable between the plurality of first teeth  82 , as shown in  FIG.  7 A . The manual input device  72  is further mounted with a biasing mechanism  86  such that the manual input device  72  is movable vertically relative to the plurality of first teeth  82 . The biasing force of the biasing mechanism  86  positions the manual input device  72  in a first neutral, extended position where the plurality of second teeth  84  are interposed with the plurality of first teeth  82 . As a result, rotation of the manual input device  72  about the axis Y when in the extended position is restricted. However, when a downward force is applied to the manual input device  72 , the force opposes the bias of the biasing mechanism  86  and the plurality of second teeth  84  move out of the plane of the plurality of first teeth  82 . When the manual input device  72  is in this second, depressed position ( FIG.  8 B ), the manual input device  72  is rotatable about the axis Y in at least one direction, and in some implementations, in two directions. Once the force is removed from the manual input device  72 , the biasing force of the biasing mechanism  86  will cause the manual input device  72  to return to the extended position, where rotation of the manual input device  72  is restricted. 
     The second agitating member  60  may be permanently affixed to the container  32 . However, in an implementation, the second agitating member  60  is separable from the container  32 , the mounting member  71 , and/or the manual input device  72 , such as to facilitate cleaning thereof. With reference now to  FIGS.  11  and  12   , the manual input device  72  may include a push button  88  operable to selectively decouple the second agitating member  60  therefrom. In such implementations, the shaft  62  may have at least one spring biased detent formed therein. As shown, a first detent  90   a  may be arranged at the interface between the shaft  62  and the container  32 . Alternatively, or in addition, a second detent  90   b  may be arranged at the interface between the shaft  62  and the manual input device  72 . In the extended positions, the detents  90   a ,  90   b  engage a groove or other feature formed in the adjacent component to restrict movement of the shaft  62  relative to the container  32 , or the manual input device  72  relative to the shaft  62 /container  32 , respectively. Application of a force to a push button  88  formed in the manual input device  72  the first and second detent  90   a ,  90   b  to retract radially inwardly into the shaft  62 , thereby separating the detent  90   a ,  90   b  from the groove or feature formed in the adjacent components. As a result, in this retracted position, the shaft  62  can be translated relative to the container  32 . This allows the second agitating member  60  and the shaft  62  to be separated from the container  32 , and in some implementations, the manual input device  72  to be separated from the second agitating member  60  and even the mounting member  71  and the container  32 . When the force is released from the push button  88 , a biasing mechanism  92  coupled to the push button  88  causes the push button  88  to return to its original position and the detents  90   a ,  90   b  to return to the extended position. 
     With reference to  FIGS.  13  and  14   , in another implementation, the second agitating member  60  and/or shaft  62  may be retained within the processing chamber  40  via a magnetic connection or coupling. As shown, a magnet  94  may be mounted within the base  64  of the second agitating member  60 , such as for connection to an end of the metal shaft  62  ( FIG.  14   ). Accordingly, application of a force to the second agitating member  60  that exceeds the magnetic force coupling the second agitating member  60  to the shaft  62  will be sufficient to separate the second agitating member  60  from the shaft  62 . Although the magnetic connection is described as being between the second agitating member  60  and the metal shaft  62 , it should be understood that the magnetic connection may be formed with another magnet, such as shown in  FIG.  13   . Further, implementations where the magnetic connection is formed at another location, such as between the shaft  62  and a portion of the manual input device  72  or at an intermediate portion of the shaft  62  for example, are also within the scope of the disclosure. 
     In yet another implementation, the processing assembly may be removably connected to the manual input device  72  via a snap fit or spring clip type of connection. As shown in  FIG.  15   , in an implementation, a feature  96  defining one or more grooves  98  may extend from a portion of the second agitating member  60 , such as the base  64  for example, for connection to a plurality of resilient members  100 . As the feature  96  is moved towards the clearance, the engagement with the resilient members causes the members to flex outwardly, to receive the feature therein. Once the feature  96  reaches a specific position, the bias of the resilient members  100  will cause them to engage the grooves  98  of the feature  96 . The between the grooves  98  and the resilient members  100  prevents separation of the second agitating member  60  from the manual input device  72 . 
     To separate the second agitating member  60  from the resilient members  100 , a force applied to the second agitating member  60  must be sufficient to push the resilient members  100  outwardly, out of engagement with grooves  98 . In another implementation, shown in  FIG.  16   , the resilient members  100  may extend from a first side of the second agitating member  60  and the grooves  98  may be formed in feature  96  extending from the manual input device  72 , or alternatively formed in the shaft  62 . One or more release levers  102  operably coupled to the resilient members  100  may extend from a second, opposite side of the second agitating member  60 . When the distal or free end of the release levers  102  are squeezed together, the resilient members  100  flex outwardly, to decouple from the grooves  98 , thereby allowing the second agitating member  60  to separate from the dial. When the force is removed from the release levers  102 , the resiliency of the material causes the resilient members  100  to bias back to a neutral position. It should be understood that the mechanisms and configurations for removably coupling the second agitating member  60  to the shaft  62  and/or manual input device  72  are provided as examples only and any suitable coupling mechanism for removably mounting the processing assembly within the processing chamber  40  is within the scope of the disclosure. 
     With reference now to  FIGS.  17  and  17 A , another implementation of an attachment  130  suitable for use with the food processing base is illustrated. As shown, the attachment  130  similarly includes an inverted jar or container  132  having a first open end  134 , a second generally closed end  136 , and one or more sidewalls  138  extending between the first end  134  and the second end  136  to define a hollow interior or processing chamber  140  of the container  132 . The attachment  130  further includes a first agitating member  142 , such as a cutting assembly for example, configured to removably couple to the first open end  134  of the container  132  to seal the processing chamber  140 . The attachment  130  may further include a second agitating member  160  selectively positionable within the chamber  140 . In the illustrated, non-limiting implementation, a removable seal or cap member  147  (see  FIG.  17 A ) is positionable within an opening, illustrated schematically via broken lines at  204 , formed at the second end  136  of the container  132 , and the second agitating member  160  is a tamper that is insertable into the chamber  140  via the opening  204 . Accordingly, a user may remove the cap member  147  and insert the tamper  160  the opening  204  in the second end  136 . A user may then manually manipulate the tamper  160  to push unprocessed food or food stuck at the sidewall of the container towards the cutting assembly  142 . When a user is finished using the tamper  160 , the cap member  147  may be reinserted into the opening  204  to seal the second end  136  of the container  132 . It should be understood that the first agitating member  142  may be operated when either the tamper  160  or the cap member  147  is inserted within the opening  204 . 
     As shown, the tamper  160  has a generally cylindrical body  206  having a diameter smaller than the diameter of the opening  204 ; however, it should be understood that a body  206  having any cross-sectional shape is within the scope of the disclosure. A radially outwardly extending flange  208  is connected to the cylindrical body  206  adjacent a first end  210  thereof. The diameter of the flange  208  is greater than the opening  204  to restrict the end  210  of the tamper  160  from falling through the opening  204  into the chamber  140 . As a result, in use, a portion of the tamper  160  is positioned within the chamber of the container  132  and a portion of the tamper  160  remains adjacent an exterior of the container  132 . In any implementation including a tamper  160 , the cylindrical body  206  of the tamper  160  arranged within the chamber  140  is operable as an agitating member to stir or move the one or more food items arranged within the chamber  140 . The agitation performed by movement of the body  206  within the chamber  140  occurs in response to a manual input applied to the end  210  thereof. 
     With reference now to  FIGS.  18 - 20   , another implementation of an attachment  230  suitable for use with the food processing base is illustrated. As shown, the attachment  230  similarly includes an inverted jar or container  232  having a first open end  234 , a second closed end  236 , and one or more sidewalls  238  extending between the first end  234  and the second end  236  to define a hollow interior or processing chamber  240  of the container  232 . The attachment  230  further includes a first agitating member  242 , such as a cutting assembly for example, configured to removably couple to the first open end  234  of the container  232  to seal the processing chamber  240 . As previously described, the cutting assembly  242  typically includes a body  244  and one or more blades  246  rotatable about an axis X relative to the body  244 . The container  232  may, but need not include a second agitating member  60 ,  160  positioned within the processing chamber, adjacent the second end  236  of the container  232 , as described above. 
     In the illustrated, non-limiting implementation, another agitating member  310  is positioned in overlapping arrangement with a portion of the cutting assembly  242 . The agitating member  310  includes a body  312  having a generally hollow interior (not shown) within which the one or more blades  246  of the cutting assembly  242  are receivable (see  FIG.  19   ). When the agitating member  310  is installed about the blades  246  of the cutting assembly  242 , the body  312  of the agitating member  310  forms a cover or barrier to block the blades  246  from interacting with one or more food items within the chamber  240 . Further, when the agitating member  310  is installed about the blades  246  of the cutting assembly  242 , the agitating member  310  is rotationally coupled to the blades  246  of the cutting assembly  242 . As a result, operation of the cutting assembly  242  drives rotation of the agitating member  310  about the axis X, and this rotation is used to perform a processing operation via the agitating member  310 . 
     A contour of the exterior of the agitating member  310  may be shaped to perform a desired processing operation. In an implementation, the agitating member  310  is operable to perform a mixing operation rather than a cutting or chopping operation. As best shown in  FIGS.  19  and  20   , the body  312  of the agitating member  310  may be formed with a plurality of generally arcuate contours. Further, a paddle  314  having a large surface area may extend generally perpendicularly from an end  316  of the body  312 , such as towards the second end  236  of the container  232  for example. Rotation of the body  312 , and therefore the paddle  314 , causes the food items within the chamber to swirl about the axis and mix together. It should be understood that the configuration of the agitating member  310  illustrated and described herein is intended as an example only, and that any suitable configuration is within the scope of the disclosure. 
     A single-serve or personal blending container including an agitating member  60 ,  160  or  210  as illustrated and described herein allows for the production of a thick, consistent culinary output, while minimizing excessive cavitation. Further, minimal input is required from a consumer to operate the processing assembly to encourage the flow of ingredients back towards the blades performing the blending operation. 
     With reference now to  FIGS.  21  and  22   , an example of an attachment  430  according to yet another implementation is illustrated. In the illustrated, non-limiting implementation, the second end  436  of the container  432  is substantially open, or includes a wall having a generally centrally located opening  437  formed therein. A displacement member  500  is connected to the container  432  in overlapping arrangement with the opening  437 , such that the displacement member  500  cooperates with the body of the container  432  to seal the second end  436  thereof. The displacement member  500  may be connected to an exterior surface, or alternatively, to an interior surface of the container  432 . Further, the displacement member  500  may be removably or permanently connected to the container  432  via any suitable manner, such as via a connector or fastener for example. In an implementation, the displacement member  500  is over-molded relative to a portion of the container  432 , such as the second end  436  for example. 
     The displacement member  500  may be formed from a resilient or flexible material such that the displacement member  500  is transformable between a first configuration ( FIG.  21   ) and a second configuration ( FIG.  22   ). In an implementation, the displacement member  500  is a diaphragm. However, it should be understood that a displacement member  500  formed from any suitable component is within the scope of the disclosure. When the displacement member  500  is in the first configuration, the displacement member  500  may be located partially, and in some implementations wholly, external to the processing chamber  440  of the container  432 . In implementations where the displacement member  500  is mounted at an interior of the container  432 , in the first configuration, the displacement member  500  may, but need not extend through the opening  437  formed in the second end  436  of the container  432 . In the second configuration, the displacement member  500  extends inwardly into the processing chamber  440  of the container  432 , towards the first end  434 . In implementations where the displacement member  500  is mounted at an exterior of the container  432 , when in the second configuration, the displacement member  500  extends through the opening  437  formed in the second end  436  of the container  432 . 
     The processing chamber  440  of the container  432  has a processing volume in which foods are processed. In an implementation, a portion of the displacement member  500  defines a boundary of this processing volume, such as an upper boundary of the processing volume when the container  432  is attached to a food processing base  22  for example. The contour of the displacement member  500  may be selected such that the processing volume when the displacement member  500  is in the second configuration is reduced relative to the processing volume when the displacement member  500  is in the first configuration. When in the second configuration, the displacement member  500  occupies a portion of the processing chamber  440 . In the illustrated, non-limiting implementation, the portion of the displacement member  500  that is received within the chamber  440 , such as the portion that extends through the opening  437  of the second end  436  for example, has a concave contour. Accordingly, when the displacement member  500  is in the second configuration and occupies a portion of the processing chamber  440 , the remaining portion of the processing chamber  440 , such as extending between the first end  434  of the container  432  and the surface of the displacement member  500  facing the first end  434  for example, defines the reduced processing volume. 
     Further, the displacement member  500  may have a similar but opposite contour, such as a convex contour for example, when the displacement member  500  is in the first configuration. In such implementations, such as where a portion of the displacement member  500  is arranged external to the processing chamber  440  when in the first configuration, the processing volume of the container  432  includes not only the volume of the processing chamber  440  but also the additional volume defined by the portion of the displacement member  440  arranged external to the processing chamber  440 . However, implementations where the processing volume is generally equal to or even slightly less than the volume of the processing chamber  440  and/or the container  432  when the displacement member  500  is in the first configuration are also contemplated herein. In such implementations, the contour of the displacement member  500  in the first configuration need not be generally equal and opposite to the configuration of the displacement member  500  in the second configuration. 
     In an implementation, the displacement member  500  is transformable from the first configuration to the second configuration in response to a manual input, such as application of a force to the displacement member  500  by a user. The force may be applied directly to a surface of the displacement member  500 , such as to a portion of the displacement member  500  adjacent to, within, or overlapping the opening  437 , or alternatively, may be applied indirectly to another component coupled to or associated with the displacement member  500 . 
     During a food processing operation, at least a portion of the first agitating member  442  is rotated about its axis X to process, for example, chop, cut, dice, blend, or mix, the contents of the food processing chamber. During a food processing operation, the contents of the food processing chamber  440  may be propelled outwardly, towards the sidewalls  438  of the container  432  and may stick thereto. To facilitate the return of these particles of food stuck to the sidewall  438  to the first end  434  of the container  432 , the displacement member  500  is transformed to the second configuration. By pushing the displacement member  500  into the interior of the container  432 , the volume of the processing chamber  440  is reduced. As a result, the pressure within the processing chamber  440  is increased, thereby pushing the food downwardly towards the cutting assembly  442 . In an implementation, this increased pressure acts on and loosens the stuck food particles within the container  432 . This transformation of the displacement member  500  from the first configuration to the second configuration may occur when the first agitating member  442  is operational, or alternatively, when the rotatable blade  446  of the first agitating member  442  is stationary, such as after a processing operation or during a pause of a processing operation. 
     In response to further processing, such as rotation of the cutting assembly  442  about its axis X, the heat and pressure within the processing chamber  440  will increase. Because of its resilient nature, the increased pressure within the processing chamber  440  acting on a surface of the displacement member  500  will cause the displacement member  500  to deform. In an implementation, this pressure will move the displacement member  500  through the opening  437 , to an exterior of the container  432 . Accordingly, this increased pressure generated by operation of the first agitating member  442  will ultimately transform the displacement member  500  from the second configuration back to the first configuration. Although the displacement member  500  is not illustrated or described herein as including a second agitating member, it should be understood that implementations where a second agitating member is arranged within the interior of the container  432  and operably coupled to the displacement member  500  are also contemplated herein. 
       FIGS.  23 A,  23 B, and  25    illustrate attachment  600  of the food processing system  20  suitable for use to process a thick or frozen mixture. As shown, the attachment  600  includes a container body  602  having sidewall  604 , a first end  606  and a second end  608 . The sidewall  604  in combination with one or more ends  606 ,  608  of the container  602  define a hollow interior or processing chamber  614  of the container  602 . The attachment  600  includes a first agitating member  610  which includes a cutting assembly and is at least partially disposed within a chamber  614 . 
     As discussed above in relation to  FIGS.  3  and  4   , the first end  606  of the container body  602  is open and the first agitating member  612  may be removably coupled to the first end  606  in such a way as to attach to the container body  602 . In other words, the first agitating member  612  is receivable at the first end  606 . After installment of the first agitating member  612 , the first end  606  is closed and sealed. The first agitating member  612  includes a body  607  and one or more blades  610  to cut, chop, blend, or, in general, process food. When the first agitating member  610  is installed on the container  602 , the blades  610  are disposed within the container  602 . The container  602  may be threadably coupled to the first agitating member  612 . However, other mechanisms for removably connecting the container  602  to the first agitating member  612  are also contemplated here including, for example, a snap connection, magnetic connection, bayonet connection, and so on. In each of the various attachment configurations, the first agitating member  612  is configured to operably couple to the food processing base  22  of the food processing system  20 . 
     As shown in  FIG.  25   , the attachment  600  can also include a second agitating member  620  positioned at the second end  608  of the container body  602  and at least partially disposed within the processing chamber  614  of the container body  602 . The structure and mechanism of second agitating member  620  may be similar to the second agitating members discussed in  FIGS.  3 - 20   . 
     Referring back to  FIGS.  23 A and  25   , the attachment  600  includes a fluid agitator and/or pump  640  to assist in removing ingredients from the interior of chamber  614  by directing fluid toward the interior of the chamber  614 . The fluid agitator and/or pump  640  is in fluid communication with its surrounding environment and receives fluid via inlet  642 . The pump  640  can receive any kind of fluid via inlet  642  when an actuator  644  (arm  644 ) is extended. In some implementations, the fluid is air. The fluid may include a liquid such as water and/or an ingredient derived from or related to the fluid such as milk, juice, coffee, and so on. In some implementations, pump  640  includes a spring  646  in physical communication with the actuator  644  and pump reservoir  630 . Actuation of arm  644  may happen in various ways. In one application, a user may apply a downward force and/or press down on arm and/or platform  644  to actuate and/or initiate the agitation process. The arm may be springloaded via spring  646  such that when the user releases the arm  644 , the arm  644  returns to an extended and/or ready position for subsequent actuation. In some implementations (shown in  FIG.  24   ), the fluid agitator and/or pump has a displacement member  650 . The displacement member  650  can be any flexible membrane. In some implementations, the displacement member  650  is a diaphragm. In this case, the actuator arm  644  is actuated by a downward force applied by a user and returned to a ready position through a restorative force such as a spring  646 . The displacement member  650  and/or actuator arm  644  may also or alternatively be restored to the ready position when fluid fills chamber  654 . However, in some implementations, the restorative force of, for example, spring  646  draws the actuator arm  644  and member  650  upward which, in turn, draws fluid into chamber  654  so that chamber  654  is at least partially filled and arm  644  is extended and ready for a user to initiate a subsequent fluid agitation event. The fluid fills chamber  654  via openings  652  to enable the displacement member  650  to then force the fluid out of chamber  654  upon application of pressure or force to arm  644  and a downward motion of member  650  toward outlet  648 . Inlet  642  may include a one-way check valve and/or similar mechanism arranged to allow fluid to enter reservoir  630 , but not exit via inlet  642 . Openings  652  may include a one-way check valves and/or similar mechanisms arranged to allow fluid to enter chamber  654 , but not exit. While  FIG.  24    illustrates one type of fluid agitator and/or pump, other fluid agitators and/or pump devices may be implemented that one or ordinary skill would be readily able to implement. 
     As discussed above, the fluid agitator and/or pump  640  receives fluid via inlet  642  to fill the pump reservoir  630  (pump chamber  630 ). The restorative force of, for example, spring  646  draws the actuator arm  644  and member  650  upward which, in turn, draws fluid into chamber  654  from reservoir  630  so that chamber  654  is at least partially filled and arm  644  is extended and ready for a user to initiate a fluid agitation operation or event. When the actuator  644  is actuated, e.g., pressed, pushed down, extended, or actuated in any mechanical operation, the fluid in chamber  654  is expelled via an outlet  648  into the interior of the chamber  614 . The expelled fluid will impact at least a portion of any materials adhering to sidewall  604  and/or the second agitator with sufficient force to overcome any adhesion or other forces holding the materials against sidewall  604  to, thereby, release the materials to fall toward the first agitator for further processing. This process can be repeated as long as there is sufficient fluid in reservoir  630  to draw into chamber  654 . 
     Outlet  648  may include an opening along an interior surface of sidewall  604 . In some configurations, outlet  648  includes a nozzle arranged to disperse the fluid expelled into chamber  614 . The nozzle may be arranged to direct the fluid in a predetermined direction or multiple predetermined directions from the outlet  648 . Alternatively, outlet  648  may include an opening that is oriented and/or configured to direct fluid in a predetermined direction or multiple predetermined directions. Outlet  648  may include multiple openings with each opening being oriented to direct fluid flow toward an area of chamber  614 . The orientations of the multiple openings may be coordinated to optimize a force generated by the fluid against a portion of food material in chamber  614  such that, for example, the food material is directed downward toward the first end  676 . 
       FIG.  23 B  shows an implementation where the fluid may be directed by a fluid agitator to one or more regions of the chamber  614  via one or more channels  656  and  658  in communication via one or more chamber outlets  664  and  668 . Channel  656  may include one or more outlet openings  660 . Each outlet opening  660  may include an outlet nozzle  678  and/or be oriented or configured to direct fluid flow in a predetermined direction such as in a downward direction or in a counter direction to the flow of food material generated by the first agitating member  612 . Channel  658  may include one or more outlet openings  662 . Each outlet opening  662  may include an outlet nozzle  678  and/or be oriented or configured to direct fluid flow in a predetermined direction such as in a downward direction or in a counter direction to the flow of food material generated by the first agitating member  612 . 
     The one or more channels  656  and  658  may be located on or within any parts, or combination thereof, of the interior of the container body  602 . For example, the channels may be on or within the blades  610 , second agitating member  620 , sidewalls  604 , or first agitating member  612 . The one or more regions of the chamber  614  may include, sidewalls  604 , first agitating member  612  at a first end  676 , second agitating member  620  at second end  608 , or blades  610 . 
       FIG.  23 C  shows a zoomed-in side view  670  of sidewall  604  and fluid channel  656  including multiple openings  660  arranged to direct fluid from channel  656  into chamber  614 . As show in  FIG.  25   , channels  672  and  674  are located on the second agitating member  612  and fluid is expelled through outlets  622  into the chamber  614 . The blades  610  also include openings/outlets  616  to expel the fluid to the chamber  614 , similar to the outlets  622 , to release and/or detach any ingredients stuck or adhering to the interior of the chamber body  602  during the operation of the first agitating member  612 . The fluid enters the channels  686  and  688  via outlets  664  and  668  of the pump  640  and passes through outlets  616  of the blades  610  of the first agitating member  612 . As a result, the released ingredients from the sidewall will be processed again by the cutting assembly  612  to produce more uniform product. 
       FIG.  26    shows a fluid agitator  700  located at the second end  608  of container body  602 . Displacement member  702  consists of material arranged to deform when pressed downward by an operator which, in turn, compresses the fluid in chamber  708  that is then expelled into chamber  614  via one or more streams  710 . Displacement member  702  may consist of similar materials and operate in a similar manner as displacement member  500  of  FIGS.  21  and  22   . When displacement member  702  is released, member  702  returns to its original un-deformed configuration which pulls fluid into chamber  708  via inlet  704 . Hence, when displacement member  702  returns to its un-deformed position, fluid agitator  700  is ready to perform another fluid agitation operation. Fluid inlet  704  may include a one-way check valve and/or restrictor to only allow fluid to enter chamber  708  but not exit chamber  708  via inlet  704 . In some implementations, the fluid agitator of  FIG.  23 A  through  26  is included in a second agitating member  60  receivable at the first end of the container body. But, in other implementations, the fluid agitator may be located at any location exterior to the chamber  614  and/or within or adjacent to a portion of the container body  602 . In some configurations, the second agitating member may include an agitating device in addition to the fluid agitator of  FIG.  23 A  to  26 . 
     In another implementation of an attachment  300  shown in  FIG.  27   , the second agitating member  60  is automatically rotated by motor  172 . The motor  172  can be electrically driven by battery  174  via an electrical connection. As shown on  FIG.  27   , the battery  174  is located on top  173  of the motor  172 . However, battery  174  does not need to be physically located in proximity with or near motor  172 . In some implementations, motor  172  is coupled via a drive shaft  62  to the second agitating member to effect rotation of the second agitating member  60  corresponding to rotation of the shaft  62  of motor  172 . The motor  172  may be connected to the shaft  62  at a location external to the container  32 . As shown in  FIG.  27   , the motor  172  and the second agitating member  60  are disposed on opposite sides of the mounting member  71 . However, in other configurations, the mounting member  71  and the motor  172  may be located near or directly adjacent to the second sealed end  36  of the container  32 . The motor  172  may have an electrical connection with a power source in the base  22  of the food processing system. In certain configurations, the container  32  include an electrical conduit arranged to convey an electrical drive signal to motor  172  from an electrical power source in the base  22 . In some configurations, the motor  172  is in direct electrical connection with the base  22  through electronic connections  175 . As explained with respect to manual input device  72 , the motor  172  is rotatable in one or more directions to drive rotation of the second agitating member  60  about axis Y to “scrape” or loosen food stuck at the sidewall  38  of the container  32 . 
     In some implementations, the motor  172  is continuously operating, e.g., rotating, as the food processor operates. In some configurations, the motor  172  is simultaneously rotating with the operation of the first agitating member  42 . The second agitating member  60  is also rotating while the motor rotates to scrape and/or loosen the food stuck at the sidewall  38  and/or push the food downwardly toward the cutting assembly  42  while the first agitating member/cutting assembly  42  operates. In some implementations, the motor  172  rotates in one direction during the whole operation. In other configurations, the motor  172  rotates in one direction, e.g., clockwise, during a first portion of the operation of the motor  172  and changes its direction of the rotation, e.g., counterclockwise direction, during a second portion of operation of the motor  172 . In another implementation, the motor  172  changes its rotation after one or more cycles of the rotation in one direction, e.g., clockwise, and continues to change the direction of its rotations after each set of cycles in one direction. This may result in a better processed food product of the food processing system by enhancing the ability of second agitating member  60  to loosen and scrape any food stuck to the sidewall  38 . 
     Alternatively, or in addition, in some implementations, the motor  172  may be operable to translate the second agitating member  60  along the axis Y, such as to push food downwardly towards the cutting assembly  42 . In such configurations, the motor  172  may be threadably coupled to the container  32  (see  FIG.  9   ), such that rotation of the motor  172  causes the second agitating member  60  to both rotate and translate in axial direction, resulting in movement of the second agitating member  60  along a helical and/or reciprocating path. 
     The motor  172  may be directly connected to the second agitating member  60  via a drive shaft such that a single turn of the motor  172  results in a corresponding single turn of the second agitating member  60 . However, implementations where the motor  172  is indirectly coupled to the second agitating member  60 , such as via a gearing mechanism, are also within the scope of the disclosure. In such configurations, a single turn of the motor  172  may result in several turns of the second agitating member, or alternatively, less than one turn of the second agitating member  60 . 
     In another configuration shown in  FIG.  28 A , attachment  400  of the food processing system  20  is suitable for use to process a thick or frozen mixture. As shown in  FIG.  28 A , attachment  400  includes a container body  402  having sidewall  404 , a first end  406  and a second end  408 . The sidewall  404 , in combination with one or more ends  406  and  408  of the container  402 , defines a hollow interior or processing chamber  414  of the container  402 . The attachment  400  includes a first agitator  410  having a cutting assembly that is at least partially disposed within a chamber  414 . 
     As discussed above in relation to  FIGS.  3  and  4   , the first end  406  of the container body  402  is open and the first agitator  412  may be removably coupled to the first end  406  and attach to the container body  402 . In other words, the first agitator  412  is receivable at the first end  406 . After attachment of the first agitator  412 , the first end  406  is closed and sealed. The first agitator  412  includes a body  407  and one or more blades  410  to cut, chop, blend, and/or process food. When the first agitator  412  is attached to the container  402 , the blades  410  are also disposed within the container  402 . The container  402  may be threadably coupled to the first agitator  412 . However, other mechanisms for removably connecting the container  402  to the first agitator  412  may also be implemented including, for example, a snap connection, magnetic connection, bayonet connection, and so on. In each of the various attachment configurations, the first agitator  412  is configured to operably couple to the food processing base  22  of the food processing system  20 . In some implementations, the attachment  400  also includes a vibrator  480  arranged adjacent to and/or in contact with the container body  402 . As shown in  FIG.  28 A , the vibrator  480  may be located at the second end  408  of the container body  402 . 
       FIG.  29    is a front view of an attachment including a vibrator  480 ′ located on the sidewall  404  of the container body  402 . When the vibrator  480 ,  480 ′ is activated, it vibrates the container body  402 . Vibration of the container body  402  will loosen the food stuck to the sidewall  404 , enabling the food to move toward the center of the chamber  414  and/or toward the first end  406  where the cutting assembly  412  is located. This will result in a more uniform processed food by the food processing system  20 . The vibrator  480 ,  480 ′ can vibrate the container body  402  during a period of operation of the food processing system  20  or during the entire time of operation of the food processing system  20 . In some implementations, shown in  FIGS.  28 A,  28 B, and  24   , the vibrator  480  may include a direct current (DC) motor  485  arranged to generate haptic signals and/or vibrations. As shown in  FIGS.  28 A- 28 B , the DC motor  485  can be powered by a battery  482 . In other configurations, the DC motor  485  may be connected electrically through connection  487  to the base  42  of the food processing system  20 . In some configurations, the food processing system  20  provides the necessary power for the operation of the vibrator  480 ,  480 ′ (shown in  FIG.  29   ). A user may activate and/or deactivate the vibrator  480  or  480 ′ via a user interface and/or switch. Activation and/or deactivation of vibrator  480  or  480 ′ may be controlled automatically by a controller and/or processor. 
       FIG.  30    shows another implementation of an attachment  800  of the food processing system  20  suitable to process a thick or frozen mixture. As shown, the attachment  800  includes sonic vibrator  880  that is in contact with the container body  402 . The container body  402  has sidewall  404 , a first end  406  and a second end  408 . The sidewall  404 , in combination with one or more ends  406  and  408  of the container body  402 , define a hollow interior or processing chamber  414  of the container body  402 . The attachment  800  includes a first agitator  410  having a cutting assembly that is at least partially disposed within chamber  414 . The sonic vibrator  880  may be located in portions or regions of the sidewall  404  of the container body  402 . In this configuration, the second end  408  is at least partially closed by end wall  420 . The end wall  420  and the sidewall  404  may form a unitary structure. In some configurations, the second end  408  is completely closed. However, the sonic vibrator  880  may also and/or alternatively be located on one or more portions or regions of the sidewall  404  on an exterior of the container body  402 . For example, as shown in  FIG.  30   , the sonic vibrator  880  may be located on the sidewall  404  within the chamber  414 . In some configurations, the sonic vibrator  880  may be located on or built in the end wall  420 . Similar to the vibrator  480 ,  480 ′, when the sonic vibrator  880  is activated, it vibrates the container body  402 . Vibration of the container body  402  will loosen the food stuck and/or attached to the sidewall  404  causing the food to move toward the center of the chamber  414  or toward the first end  406  where the cutting assembly  412  is located. Therefore, the cutting assembly  412  processes the food, e.g., dice, chop, cut, slice, mix, blend, crush, and/or the like multiple times to achieve a more uniform processed food by the food processing system  20 . The sonic vibrator  880  can vibrate the container body  402  during a portion or period of an operation of the food processing system  20  or during the whole time of the operation of the food processing system  20 . Base  20  may be electronically connected through connections  489  to the sonic vibrator  880  to provide power. In some configurations, the sonic vibrator  880  may include piezoelectric crystals  881  such that when they are electrically powered, they mechanically deform to produce vibrations. A user may activate and/or deactivate sonic vibrator  880  via a user interface and/or switch. Activation and/or deactivation of sonic vibrator  880  may be controlled automatically by a controller and/or processor. 
       FIGS.  31 A- 31 B  show an exemplary implementation for a DC motor  485  used as a haptic signal generator and/or vibrator. The DC motor  485  can be any suitable DC motor. The armature  601  of the DC motor  485  is mounted on the shaft  602  and has windings terminated to a commutator  604 . Motor terminals  606  and  608  are connected to the engine winding  610  through the electric motor brushes  605  and  607 . The stator magnet  612  may have at least two permanent magnet poles. The electromechanical motor is designed such that opposite magnetic fields of the energized winding  610  and the stator magnet  612  cause the shaft  602  to rotate. When the armature  601  is aligned with the stator magnets  612 , the brushes  605  and  607 , which are also fixed to the housing  614 , will connect to the next commutator segment and thereby energize another winding. This will change the magnetic field of the armature  601 , which causes the motor  485  to continue rotating. The rotation of an unbalanced mass  616  caused by the rotation of the DC motor  485 , results in vibration of the surface or object it is in contact with such as, for example, vibration of the vibrator  480  or  480 ′. That is, the rotation of mass  616  results in vibration of the container body  402 . The frequency and amplitude of the vibration depends on several factors including, for example, the weight and/or radius of mass  616 . Other types of motors and/or haptic signal generators may be used to generate vibrations including for example an alternating current (AC) motor, eccentric rotating mass (ERM) actuator, linear resonant actuator (LRA), and/or a piezoelectric actuator. 
       FIG.  32    shows a side view of a food processing system  2600  including an attachment and/or container body  2602  having a mainspring  2614  that drives rotation of second agitator  2608 . System  2600  includes a base  2604  having a motor (not shown) arranged to drive shaft  2610  rotationally and, thereby, drive the rotation of first agitator  2606 . In one configuration, shaft  2610  and first agitator  2606  are rotated in a clockwise direction. In another configuration, shaft  2610  and first agitator  2606  are rotated in a counter-clockwise direction. Shaft  2610  may also engage with second agitator  2608 . Shaft  2610  may be coupled to mainspring  2614  within spring housing  2612 . Spring housing  2612  may be coupled to second agitator  2608  and/or integrally formed as part of second agitator  2608 . 
     In operation, in one implementation, mainspring  2614  is wound to a compressed position substantially against and/or adjacent to shaft  2610  while shaft  2610  and first agitator  2606  are rotated in a clockwise direction by a motor in base  2604 . When the motor stops and first agitator  2606  and shaft  2610  stop rotating, mainspring  2614  will unwind and/or decompress, causing second agitator  2608  to rotate in a counter-clockwise direction (or opposite direction to the original motor-driven direction of rotation of shaft  2610  and first agitator  2606 ). To prevent overwinding or over-tightening of mainspring  2614 , shaft  2610  may be coupled to mainspring  2614  via a slipping clutch as will be explained further in  FIG.  33   . Mainspring  2614  will rotate second agitator  2608  until it reaches an unwound and/or decompressed position. In such a process, second agitator  2608  via its blades will scrape and/or push food portions adjacent to the sidewall of container  2602  away from the sidewall and downward in container  2602 . In some configuration, mainspring  2702  includes a stopwork or winding stops arranged to prevent mainspring  2702  from being wound excessively and/or prevent mainspring  2702  from unwinding excessively. 
       FIG.  33    is a top down view  2700  of a mainspring  2702  arranged to drive the rotation of a second agitator  2710  such as second agitator  2608  of  FIG.  32   . Mainspring  2702  may reside in a housing  2718  that is formed by and/or attached to second agitator  2710 . Mainspring  2702  may be attached via inner end to slipping clutch and/or bridle  2704  at connector  2706 . Mainspring  2702  may be attached via an outer ender to second agitator  2710  via connector  2712 . 
     In one configuration, the outer end of mainspring  2702 , instead of attaching to the barrel or shaft  2708  or  2610 , is attached to a circular expansion ring and/or spring clutch  2704 , sometimes called the bridle, that presses against the inner wall of the barrel and/or shaft  2708 , which may have serrations or notches to hold the slip clutch  2704 . During normal winding, the bridle  2704  holds by friction to the barrel and/or shaft  2708 , allowing mainspring  2702  to wind. When mainspring  2702  reaches its full tension, its pull is stronger than the bridle  2704 . Further rotation of the mainspring  2702  causes the bridle  2704  to slip along the barrel and/or shaft  2708  or  2610 , preventing further winding of mainspring  2702  or  2614 . Blade connection regions  2714  and  2716  enable an extension of blades from the second agitator  2710  adjacent to the sidewalls of a container such as container  2602 . 
     In some configurations, the spring housing  2614  resides within a lid of container  2602  substantially adjacent to second agitator  2608 . In other configurations, the spring housing  2614 , mainspring  2614 , and other component within spring housing  2614  may be located substantially adjacent to first agitator  2606  within container  2602 . In yet another configuration, spring housing  2614  is located within base  2604 . In a further configuration, the spring housing is located within a first agitator housing and/or assembly of the first agitator  2602 . 
     Referring now to  FIGS.  34  and  35   , an example of a multi-functional food processing system  3020  is illustrated. In general, the food processing system  3020  can be adapted to perform any food processing or blending operation including, without limitation, dicing, chopping, cutting, slicing, mixing, blending, stirring, crushing, or the like. Although the food processing system illustrated and described herein is a personal blender system, other food processing systems are within the scope of the present disclosure. 
     The food processing system  3020  includes a food processing base  3022  having a body or housing  3024  within which a drive unit (not shown) and at least one controller not shown) are located. The drive unit includes at least one rotary component, such as a drive coupler  3026  (see  FIG.  35   ) for example, driven by a motorized unit (not shown) located within the housing  3024 . The food processing base  3022  may additionally include a control panel or user interface  3028  (best shown in  FIG.  34   ) having one or more inputs  3029  for turning the motorized unit on and off and for selecting various modes of operation, such as pulsing, blending, or continuous food processing. However, aspects where the food processing system  3020  does not include a user interface, such as where the food processing system  3020  is operable via an application and aspects where the application of a force to a switch or other component formed in the food processing base  3022  (is sufficient to initiate operation of the motorized unit such as in push to operate systems) for example, are also within the scope of the disclosure. The at least one drive coupler  3026  is configured to engage a portion of an attachment  3030  coupled to the food processing base  3022  for the processing of food products located within an interior of the attachment  3030 . 
     One or more attachments  3030  varying in size and/or functionality may be configured for use with the food processing base  22 . An example of an attachment  3030  suitable for use with the food processing base  22  is illustrated in  FIGS.  36 ,  37 ,  38 A, and  39   . As shown in  FIG.  36   , the attachment  3030  includes an inverted jar or container  3032 . The container  3032  may include a body having a first open end  3034 , a second closed end  3036 , and one or more sidewalls  3038  extending between the first end  3034  and the second end  3036 . The sidewalls  3038 , in combination with one or more of the ends  3034  and  3036  of the container  3032 , define a hollow interior or processing chamber  3040  of the container  3032 . In some implementations, the container  3032  is a “personal blending container” or “cup” that has a first configuration when separated from the food processing base  3022  and a second inverted configuration when coupled to the food processing base  3022 . As shown in  FIGS.  36 ,  37 ,  38 B , the second end  3036  includes an end wall  3039 . In some configurations, end wall  3039  is a continuous part of sidewall  3038  forming a unitary structure. 
     In such configurations, the attachment  3030  further includes a first agitator  3042 , having a cutting assembly, configured to removably couple to the first open end  3034  of the container  3032  to seal the processing chamber  3040 . In the illustrated implementation, the cutting assembly  3042  includes a body  3044  and one or more blades  3046  rotatable about an X axis relative to the body  3044 . When the cutting assembly  3042  is connected to the end  3034  of the container  3032 , the first agitator  3042  including the least one blade  3046  is disposed within the processing chamber  3040  of the container  3032 . The container  3032  and the cutting assembly  3042  may be threadably coupled together. However, other mechanisms for removably connecting the container  3032  and the cutting assembly  3042 , such as a bayonet connection or a clip for example, may be implemented. 
     In each of the various attachment configurations  3030 ,  3030 ’,  3030 ”, and  3030 ’”, the cutting assembly  3042  is configured to operably couple to the food processing base  3022  of the food processing system  3020 . A driven coupler  3048  (see  FIG.  36   ) associated with the cutting assembly  3042  is positioned at an exterior of the attachment  3030 . The at least one drive coupler  3026  is configured to engage the driven coupler  3048  to rotate the at least one blade  3046  about the X axis to process the food products located within the chamber  3040  of the container  3032 . It should be understood that the attachment  3030  including an inverted container  3032  and a cutting assembly  3042  is intended as an example only, and that other attachments, are also contemplated herein. 
     In implementations where the attachments  3030 ,  3030 ’,  3030 ”, and  3030 ”’ include an inverted container  3032 , the attachment  3030  may include one or more contact members  3049  ( FIG.  36   ), such as tabs positioned about the periphery of the attachment  3030 . Attachment  3030 ,  3030 ’,  3030 ”, or  3030 ”’ may have any number of contact members  3049  is within the scope of the disclosure. In implementations where the attachment  3030 ,  3030 ’,  3030 ″, or  3030 ”’ includes an inverted container  3032 , the contact members  3049  may extend outwardly from the container  3032 , the cutting assembly  3042 , or both. 
     The contact members  3049  of the attachment  3030 ,  3030 ’,  3030 ”, and  3030 ”’ may be configured to cooperate with a mounting area  3050  (see  FIG.  35   ) of the food processing base  3022  to couple the attachments  3030 ,  3030 ’,  3030 ”, and  3030 ”’ to the food processing base  3022 . The mounting area  3050  may include one or more receiving slots  3052  within which each of the plurality of contact members  3049  of the attachments  3030 ,  3030 ’,  3030 ”, and  3030 ”’ is receivable. The attachments  3030 ,  3030 ’,  3030 ”, and  3030 ”’ may be configured to slidably connect to the food processing base  3022  of the food processing system  3020 . Alternatively, or in addition, the attachment  3030  may be configured to rotatably connect to the food processing base  3022  such that the attachment  3030  is locked relative to the food processing base  3022 . However, it should be understood that any suitable mechanism for coupling the attachment to the food processing base  3022  is within the scope of the disclosure. 
     With continued reference to  FIGS.  37 ,  38 B and  39   , attachment  3030 ′,  3030 ″, and  3030 ‴, similar to attachment  3030 , of the food processing system  3020  are arranged to process a thick or frozen mixture. Similar to attachment  3030  of  FIG.  36   , attachment  3030 ′ incudes a body having a first open end  3034 , a second closed end  3036 , and one or more sidewalls  3038  extending between the first end  3034  and the second end  3036 . The sidewalls  3038 , in combination with one or more of the ends  3034  and  3036  of the container  3032 , define a hollow interior or processing chamber  3040  of the container  3032 . In certain configurations, the container  3032  is a “personal blending container” or “cup” that has a first configuration and/or orientation when separated from the food processing base  3022  and a second inverted configuration and/or orientation when coupled to the food processing base  3022 . 
     Further, the attachment  3030 ′ may include a first agitator  3042 , including a cutting assembly, configured to removably couple to the first open end  3034  of the container  3032  to seal the processing chamber  3040 . In the illustrated implementation, the cutting assembly  3042  includes a body  3044  and one or more blades  3046  rotatable about an X axis relative to the body  3044 . When the cutting assembly (first agitator)  3042  is connected to the end  3034  of the container  3032 , the first agitator  3042 , including at least one blade  3046 , is disposed within the processing chamber  3040  of the container  3032 . 
     As shown in  FIG.  37   , the attachment  3030 ′ may include a second agitator  3110  which includes one or more flexible sections and/or structures, and is extendable through the container body  3032  and through the first end  3034 . The second agitator  3110  may have any length up to the length of the sidewall  3038  and can have any shape.  FIG.  37    shows the second agitator  3110  having two paddle-like portions and/or sections  3112  and a drive/shaft  3114  through which it is connectable to the base  3022  of the food processing system  3020 . As shown in the implementation of  FIG.  37   , the first agitator  3042  and the second agitator  3110  are connected to each other and, as a result, both are connected to the base  3022  (not shown) to be able to operate. The attachment of the first agitator  3042  and the second agitator  3110  to the base  3022  is similar to the configuration as explained in connection to  FIG.  36   . During the operation of the food processing system  3020 , the first agitator  3042  is activated and rotates to cut and process the ingredients/food and the second agitator  3110  is also activated, e.g., rotates, to remove/scrape at least a portion of the food which is attached to the sidewall  3038 . 
     In order to better remove the attached food from the sidewall  3038 , the second agitator  3110  may extend along the sidewall  3038 . As shown in  FIG.  37   , the paddles  3112  may also contact with the sidewall  3038 . Depending on the shape of the second agitator  3110 , the second agitator  3110  may contact the sidewall  3038  at one point or several points.  FIG.  37    shows that each paddle  3112  comes into contact with the sidewall  3038  at point  3113 . In other implementations, not shown, the second agitator  3110  does not contact the sidewall  3038 . However, various configurations, the second agitator  3110  positioned in close proximity to the sidewall  3038  to be able to scrape at least portion of the stuck foods off the sidewall  3038 . The second agitator  3110  is also able to stir the food during the operation of the food processing system  3020 . As a result, these features of the second agitator  3110  enable the food processing system  3020  to better process food to achieve a more uniform product. The second agitator  3110  may operate simultaneously with the first agitator  3042  during food processing operations. However, in some configurations, the agitator  3120  may operate in intervals or during a portion of the operation of the first agitator  3042 . 
       FIG.  38 A  shows food processing system  3020 ′ with attachment  3030 ″ having an exemplary second agitator  3120 . Similar to attachment  3030 ′ of  FIG.  37   , the attachment  3030 ″ incudes a body having a first open end  3034 , a second closed end  3036 , and one or more sidewalls  3038  extending between the first end  3034  and the second end  3036 . The sidewalls  3038 , in combination with one or more of the ends  3034  and  3036  of the container  3032 , define a hollow interior or processing chamber  3040  of the container  3032 . Similarly, the attachment  3030 ″ includes a first agitator  3042 , having a cutting assembly, configured to removably couple to the first open end  3034  of the container  3032  to seal the processing chamber  3040 . In the illustrated implementation, the cutting assembly  3042  includes a body  3044  and one or more blades  3046  rotatable about an X axis relative to the body  3044 . When the cutting assembly  3042  is connected to the end  3034  of the container  3032 , the first agitator  3042 , including the least one blade  3046 , is disposed within the processing chamber  3040  of the container  3032 . 
     As shown in  FIGS.  38 A- 38 B , the attachment  3030 ″ includes a second agitator  3120  which is flexible and extendable through the container body  3032  through the first end  3034 . The second agitator  3120  has a drive assembly and/or shaft  3124  through which it is connectable to the base  3022  of the food processing system  3020 ′. The first agitator  3042  and the second agitator  3120  are connected to each other and, as a result, both are connected to the base  3022  to enable their operation via the motorized unit (explained in relation to  FIG.  35   ) of the food processing system  3020 ′ (not shown). The drive/shaft  3124  may have a length approximately the same as the length of the container body  3032 . In some configurations, the length of the drive/shaft  3120  is less than the length of the container body  3032 . The second agitator  3120  may include one paddle  3125  which rotates during at least a part of the operation of the first agitator and/or cutting assembly  3042  to remove food from the sidewall  3038 . As a result, the food moves toward the center of the chamber  3040  and cutting assembly  3042  to be processed and achieving more uniform processed food. As stated above in connection to  FIG.  37   , the paddle  3125  may extend along the sidewall  3038  and have a very small distance from the sidewall  3038 . In some configurations, the paddle  3125  may contact the sidewall  3038 . 
       FIG.  39    illustrates an attachment  3030 ‴ with a second agitator  3130 . The attachment  3030 ‴ is similar to attachments  3030 ,  3030 ′, and  3030 ″ meaning that is has a similar container body  3032  and first agitator  3042 . The second agitator  3130  of the attachment  3030 ‴ is connected to the base  3022  and to the first agitator  3042  at the first end  3034  by an attachment  3134  to enable the motorized unit of the food processing system  3020  to rotate both first agitator  3042  and second agitator  3130 . As shown in  FIG.  39   , the second agitator  3130  is extendable through the container body  3032  and includes a spiral structure  3132 . The second agitator  3130  may be configured in various lengths. For example, it may be in any range as small as ¼ of the length of the container body  3032  up to the length of the container body  3032 . The spiral structure  3132  of the second agitator  3130  assists in removing at least a portion of a food attached to the sidewall  3038  by providing a turbulent flow of food materials in the container body  3032  during operation of the food processing system  3020 . In some implementations, the second agitator  3130  is configured to stir food during the operation of the food processing system  3020 . 
     As shown in  FIG.  39   , the second agitator  3130  may have three different sections, a first portion  3136  close to the first end  3034 , a middle portion  3138  having the spiral structure  3132 , and a third portion  3139  close to the second end  3036 . In some configurations, the second agitator  3130  includes a spiral structure which extends from near first end  3034  to near second end  3036 . In some implementations, the spiral structure  3132  has a larger diameter near the first end  3034  and smaller diameter near the second end  3036 . Further, a diameter of the spiral structure  3132  may increase from the first end  3034  as it extends toward the second end  3036 . In other implementations, a diameter of the spiral structure  3132  may decrease from the first end  3034  as it extends toward the second end  3036 . Examples of various configurations of a second agitating member  3130  are illustrated in  FIGS.  40 A- 40 C . As shown, the second agitator  3130  may have any spiral or helical structure with any suitable length in order to produce turbulent flow during the operation of the food processing system  3020  to remove stuck food from the sidewall  3038  and/or stir food in chamber  3040  while the cutting assembly  3042  operates. This result to a more uniform processed food. 
     All references, including publications, patent applications, and patents cited herein are hereby incorporated by reference to the same extent as if each reference were individually and specifically indicated to be incorporated by reference and were set forth in its entirety herein. 
     The use of the terms “a” and “an” and “the” and similar referents in the context of describing the invention (especially in the context of the following claims) is to be construed to cover both the singular and the plural, unless otherwise indicated herein or clearly contradicted by context. The terms “comprising,” “having,” “including,” and “containing” are to be construed as open-ended terms (i.e., meaning “including, but not limited to,”) unless otherwise noted. Recitation of ranges of values herein are merely intended to serve as a shorthand method of referring individually to each separate value falling within the range, unless otherwise indicated herein, and each separate value is incorporated into the specification as if it were individually recited herein. All methods described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The use of any and all examples, or exemplary language (e.g., “such as”) provided herein, is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention unless otherwise claimed. No language in the specification should be construed as indicating any non-claimed element as essential to the practice of the invention. 
     Elements or steps of different implementations described may be combined to form other implementations not specifically set forth previously. Elements or steps may be left out of the systems or processes described previously without adversely affecting their operation or the operation of the system in general. Furthermore, various separate elements or steps may be combined into one or more individual elements or steps to perform the functions described in this specification. 
     Other implementations not specifically described in this specification are also within the scope of the following claims.