Patent Publication Number: US-2018037384-A1

Title: Container with sealing area in finish portion

Description:
BACKGROUND 
     Field of the Disclosed Subject Matter 
     The present disclosed subject matter relates to plastic containers. Particularly, the present disclosed subject matter is directed to a plastic container to hold a liquid, powdered or granulated product, such as a food product or the like, particularly wherein the container has a sealing area for a sealing member to isolate a finish portion chamber from a body portion chamber. 
     Description of Related Art 
     Plastic containers, for example canisters, can be used for packaging of a wide variety of products, and are available in a wide range of sizes and shapes. It can be desirable for certain products, including liquid, powdered and granulated products, such as food products, to be packaged and stored in containers having a reliable and secure seal formed between the container and the lid. Such a seal can prevent spoilage of the contents of the container, for example by preventing moisture or other unwanted elements from entering the container during transportation and storage. Such containers can also be configured for increased reliability and durability under extreme temperature conditions and for prolonged periods of storage. 
     Numerous types of closures to seal such containers have been developed, including for example and without limitation, threaded closures, friction fit and snap fit closures, and thermosealed closures. Many of these closures can be re-sealable on a container. Resealable closures can allow the closure to be replaced on the container if all of the container contents have not been dispensed. Thus, such containers can contain more than a single use amount of material, resulting in decreased packaging costs. Additionally, such containers can be refilled and reused, if desired. 
     Certain containers, such as canisters, conventionally have been fabricated from steel or other metallic materials. Although, plastic materials for such containers have been investigated, such plastic containers using conventional finish configurations can be difficult to seal with suitable results. 
     Furthermore, certain products packaged in plastic containers, including powdered and granulated products, can be intended to be used in a measured quantity. Often, a measuring device, for example a measuring cup or spoon, can be packaged within the body of the container with the powdered or granulated product. The measuring device thus can be accessed once a sealing member is removed. However, the measuring device can become buried within the powdered or granulated product, and therefore difficult to access. 
     It therefore is desirable to provide a plastic container having a reliable and secure seal and increased reliability and durability for packaging and storing of powdered or granulated products, such as food products. It is also desirable to provide such a plastic container with a complementary item, such as an additional measuring device, that can be stored within the plastic container, but separate from the other contents. 
     SUMMARY 
     The purpose and advantages of the disclosed subject matter will be set forth in and apparent from the description that follows, as well as will be learned by practice of the disclosed subject matter. Additional advantages of the disclosed subject matter will be realized and attained by the methods and systems particularly pointed out in the written description and claims hereof, as well as from the appended drawings. 
     To achieve these and other advantages and in accordance with the purpose of the disclosed subject matter, as embodied and broadly described, the disclosed subject matter includes a blow-molded plastic container including a main body portion, a finish portion and a sealing lip. The main body portion includes a bottom region defining a support reference plane and an upstanding sidewall defining a body portion chamber and a perimeter of the main body portion. The finish portion is disposed proximate an upper region of the main body portion opposite the bottom region and defines a finish portion chamber and an opening in communication with body portion chamber. The finish portion is configured to engage a lid member. The sealing lip is disposed between the main body portion and the finish portion. The sealing lip extends inwardly from the perimeter of the main body portion and is configured to receive a sealing member to seal the opening between the body portion chamber and the finish portion chamber. 
     Additionally, and as embodied herein, the container can include a plurality of circumferential ribs formed in the sidewall. The sealing lip can be formed as a fold between the main body portion and the finish portion. The sealing lip can be V-shaped in transverse cross section. An upper segment of the fold can extend upwardly at an angle of about 15 degrees relative to the reference plane. Additionally or alternatively, an upper segment of the fold can have a tapered wall thickness. A lower segment of the fold can extend downwardly at an angle of about 5 degrees relative to the reference plane. Additionally or alternatively, a lower segment of the fold can have a tapered wall thickness. The fold can extend inwardly a distance of about 5 mm from the sidewall of the main body portion. 
     Furthermore, and as embodied herein, the container can include a lid removably engaged to the finish portion. The finish portion can include a thread to threadedly engage the lid. Additionally or alternatively, the finish portion can include a ridge to snap engage the lid. 
     In addition, and as embodied herein, the container can include a sealing member secured to the sealing lip. The sealing member can include a sheet of foil or film. The sealing member can be secured to the sealing lip with an adhesive. The container can include an item disposed in the finish portion chamber and isolated from the body portion chamber. 
     Additionally, and as embodied herein, the sidewall and the finish portion define a generally cylindrical shape. An outer surface of the sidewall proximate the sealing lip can be substantially perpendicular to the reference plane. Additionally or alternatively, the sidewall can have a maximum transverse dimension greater than a maximum transverse dimension of the finish portion. The main body portion can include a transition region between the sidewall and the sealing lip. The transition region can include an angled transition portion extending inwardly and upwardly from an upper end of the sidewall to the sealing lip. The angled transition portion can have a tapered wall thickness. The main body portion can include a radiused portion between the sidewall and the angled transition portion. Additionally or alternatively, the main body portion can include a radiused portion between the angled transition portion and the sealing lip. 
     The disclosed subject matter also includes a method of making a blow-molded plastic container having some or all of the features described herein. As recognized in the art, the blow-molded plastic container disclosed herein can include some or all of the features described herein, or any suitable combination thereof. 
     It is to be understood that both the foregoing general description and the following detailed description are exemplary and are intended to provide further explanation of the disclosed subject matter claimed. 
     The accompanying drawings, which are incorporated in and constitute part of this specification, are included to illustrate and provide a further understanding of the method and system of the disclosed subject matter. Together with the description, the drawings serve to explain the principles of the disclosed subject matter. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a perspective view of an exemplary embodiment of a blow-molded plastic container in accordance with the disclosed subject matter. 
         FIG. 2  is a front view of the container of  FIG. 1 . 
         FIG. 3  is an enlarged, cross-sectional transverse view of Region 3 of the container of  FIG. 2 . 
         FIG. 4  is an enlarged, cross-sectional, perspective view of Region 4 of the container of  FIG. 2 , showing a sealing member engaged to the sealing lip. 
         FIG. 5  is a perspective view of the container of  FIG. 1 , showing a lid engaged to the finish portion. 
         FIG. 6  is a perspective view of another exemplary embodiment of a blow-molded plastic container in accordance with the disclosed subject matter. 
         FIG. 7  is a front view of the container of  FIG. 6 . 
         FIG. 8  is an enlarged, cross-sectional, transverse view of Region 8 the container of  FIG. 7 . 
         FIG. 9  is an enlarged, cross-sectional, perspective view of Region 9 of the container of  FIG. 7 , showing a sealing member engaged to the sealing lip. 
         FIG. 10  is a perspective view of the container of  FIG. 6 , showing a lid engaged to the finish portion. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     Reference will now be made in detail to the various exemplary embodiments of the disclosed subject matter, exemplary embodiments of which are illustrated in the accompanying drawings. The structure and corresponding methods of making and using the disclosed subject matter will be described in conjunction with the detailed description of the container. 
     The apparatus and methods presented herein can be used for packaging, storage and transport of perishable or nonperishable food products. The disclosed subject matter is particularly suited for packaging, storing, and dispensing powdered or granulated food products. 
     In accordance with the disclosed subject matter herein, the container generally includes a blow-molded plastic container including a main body portion, a finish portion and a sealing lip. The main body portion includes a bottom region defining a support reference plane and an upstanding sidewall defining a body portion chamber and a perimeter of the main body portion. The finish portion is disposed proximate an upper region of the main body portion opposite the bottom region and defines a finish portion chamber and an opening in communication with body portion chamber. The finish portion is configured to engage a lid member. The sealing lip is disposed between the main body portion and the finish portion. The sealing lip extends inwardly from the perimeter of the main body portion and is configured to receive a sealing member to seal the opening between the body portion chamber and the finish portion chamber. 
     The accompanying figures, where like reference numerals refer to identical or functionally similar elements throughout the separate views, serve to further illustrate various embodiments and to explain various principles and advantages all in accordance with the disclosed subject matter. Additionally, as used herein, the terms “front,” “rear,” “side,” “top,” and “bottom” are used for the purpose of illustration only, and not limitation. That is, it is recognized that the terms “front,” “rear,” “side,” “top,” and “bottom” are interchangeable and are merely used herein as a point of reference. 
     For purpose of explanation and illustration, and not limitation, exemplary embodiments of the container in accordance with the disclosed subject matter are shown in  FIGS. 1-10 . The container is suitable for use with a wide variety of food products, including fresh food products, dried foods, processed foods and liquids. However, the container disclosed herein is particularly suitable and beneficial for use with powdered or granulated food products, such as powdered milk, ground coffee, instant breakfast mixes, non-dairy creamer, instant soup, dehydrated potatoes, rice, and grains, wherein the container can be used for storing, transporting, and/or re-using such food products as well as serving the food products and allowing for measurement of the food products. The container desirably can have insulating properties to assist in maintaining the temperature of food contained therein as well as prevent moisture from entering the container. 
     Further, for purpose of illustration, and not limitation, reference will made herein to a container intended to contain food products in a body portion chamber, as well as hold a second item or device, if desired, in a finish portion chamber. As discussed below, the additional item or device can be a number of items, such as a measuring device, serving device, gadget or toy, either for use with the container or container contents, related to the container contents or unrelated to the container contents. 
     With reference to  FIGS. 1-5 , for purpose of illustration, and not limitation, the container  100  generally includes a main body portion  102  having a bottom region  104  defining a support reference plane P 1  and an upstanding sidewall  106  defining a body portion chamber  108  and a perimeter of the main body portion  102 . 
     Sidewall  106  can include one or more surface features, such as a single or a plurality of ribs formed therein. As embodied herein, and with reference to  FIG. 1 , sidewall  106  can include a plurality of ribs  120  formed therein. For purpose of illustration, and not limitation, ribs  120  can be spaced from the upper region  112  and the bottom region  104 . Additionally or alternatively, ribs  120  can be evenly spaced apart from each other along the sidewall  106 . Sidewall  106  can include any suitable number of ribs  120 , and can be configured to reinforce the sidewall  106  and resist paneling, dents and other unwanted deformation of the sidewall  106 . As a further alternative, sidewall  106  can be free of ribs or other surface features between the upper region  112  and the bottom region  104 . Additional surface features can be provided, such as but not limited to, arcuate recesses  151  along the upper edge of sidewall  106  for gripping or the like. 
     Additionally, and as embodied herein, container  100  includes a finish portion  110  disposed proximate an upper region  112  of the main body portion  102  opposite the bottom region  104 . As described further below, the finish portion  110  defines a finish portion chamber  114  and an opening  116  in communication with body portion chamber  108 . As embodied herein, the finish portion  110  is configured to engage a lid member  150  or the like, if provided. 
     Furthermore, and as embodied herein, container  100  includes a sealing lip  130  disposed between the main body portion  102  and the finish portion  110 . The sealing lip  130  extends inwardly from the perimeter of the main body portion  102 . The sealing lip  130  is configured to receive a sealing member  140  to seal the opening between the body portion chamber  108  and the finish portion chamber  114 . 
     With reference to  FIG. 3 , as embodied herein, the sealing lip  130  can be configured as a fold between the main body portion  102  and the finish portion  110 . For example, and as embodied herein, the fold forming sealing lip  130  can be V-shaped. An upper segment  132  of the sealing lip  130  can extend upwardly at an angle α 1  relative to the reference plane P 1 . For purpose of illustration and not limitation, angle α 1  can be between 10 degrees and 15 degrees, and as embodied herein angle α 1  can be 15 degrees. A lower segment  134  of the sealing lip  130  can extend downwardly at an angle β 1  relative to the reference plane P 1 , and which can depend at least in part on the weight and/or stretch of the parison in a blow-molding process, if utilized. For purpose of illustration and not limitation, angle β 1  can be within a range of 5 degrees to 20 degrees, and as embodied herein, angle β 1  can be 5 degrees. The sealing lip  130  can extend inwardly a distance d from the perimeter of the main body portion  102 , and as embodied herein distance d 1  can be about 5 mm. 
     Referring still to  FIG. 3 , the segments of the sealing lip  130  can have a tapered wall thickness. For example, and as embodied herein, the wall thickness of upper segment  132  can decrease from sidewall  106  toward an end of the sealing lip  130 , proximate an intersection with lower segment  134 . Additionally or alternatively, as embodied herein, the wall thickness of lower segment  134  can decrease from sidewall  106  toward an end of the sealing lip  130 , proximate an intersection with upper segment  132 . 
     Referring now to  FIG. 4 , as embodied herein, container  100  can include a sealing member  140  secured to the sealing lip  130 . In this manner, sealing member  140  can seal opening  116  to isolate finish portion chamber  114  from body portion chamber  108 . The sealing member  140  can be formed from any suitable material to isolate finish portion chamber  114  from body portion chamber  108 . For purpose of illustration and not limitation, as embodied herein, sealing member  140  can be formed from a sheet of foil or film. For example, sealing member  140  can be formed from plastic, paper, metal or any other suitable material. The sealing member  140  can be secured to the sealing lip  130  using any suitable sealing technique. For purpose of illustration and not limitation, as embodied herein, sealing member  140  can be secured to the sealing lip  130  with an adhesive. Additionally or alternatively, sealing member  140  can be secured to sealing lip  130  by welding, bonding, press-fit or friction-fit engagement, threaded engagement or any other suitable engagement depending upon the materials used. The sealing member  140  can be secured so as to be readily releasable, such as by a pull tab, or secured more durably so as to require a perforation, or line or weakness or other frangible technique to access the body portion chamber  108 . 
     Additionally, and as embodied herein, container  100  can include a main product disposed in body portion chamber  108 . For purpose of illustration, and not limitation, the main product disposed in the body portion chamber  108  can be a powdered or granulated food product, such as powdered milk, ground coffee, instant breakfast mix, non-dairy creamer, instant soup, dehydrated potatoes, rice, or grains. Additionally, container  100  can include an additional item disposed in the finish portion chamber  114 , isolated from the body portion chamber  108 . In some embodiments, the additional item can be a complementary item for use with the main product. For example, and not limitation, the additional item can be a measuring cup or spoon. Additionally or alternatively, the additional item can be a gadget or toy, which can be related or unrelated to the main product. Container  100  can include one or more additional items in the finish portion chamber  114 . 
     Referring now to  FIG. 5 , container  100  can include a lid  150  engaged to the finish portion  110 . Lid  150  can be any suitable configuration. For example, and as embodied herein, lid  150  can include a hinge to allow hinged opening and closing of lid  150  relative finish portion chamber  114  without removing lid  150  from finish portion  110 . Finish portion  110  can include any suitable engagement to engage lid  150 . For purpose of illustration, and as embodied herein, finish portion  110  can include a ridge  155  to snap engage lid  150 . Additionally or alternatively, lid  150  can include a hinged engagement or a threaded engagement to finish portion  110 . 
     In operation, a user can open or remove lid  150  as appropriate to access finish portion chamber  114 . The user can remove any additional item or device contained in finish portion chamber  114 . The user can detach sealing member  140  from sealing lip  130  or rupture the sealing member  140  if appropriate. For example, the user can peel away or puncture sealing member  140  to remove at least a portion of sealing member  140  to access body chamber portion  102 . In some embodiments, sealing member  140  can be disposed once removed from container  100 . Alternatively, sealing member  140  can be reattached to sealing lip  130  to re-seal opening  116 . In this manner, the additional product can be replaced into finish portion chamber  114 . Lid  150  can be closed to cover finish portion chamber  114  for future use. 
     With reference to the upper portion of the container embodied herein, as shown in  FIGS. 2 and 3 , an outer surface of the sidewall  106  of the main body portion  102  can be substantially perpendicular to the reference plane P 1  proximate the finish portion  110 . Additionally or alternatively, as embodied herein, sidewall  106  can be substantially aligned with at least a portion of the finish portion  110  with the sealing lip  130  disposed therebetween. As such, for purpose of illustration, and as embodied herein, sidewall  106  and finish portion  110  individually or collectively can define a generally cylindrical shape. Particularly, sidewall  106  and finish portion  110  together can define a container having a uniform, cylindrical shape. 
     For purpose of illustration, and not limitation, reference is made to another exemplary embodiment of a container  200  shown in  FIGS. 6-10 . As shown in  FIGS. 6-10 , the container  200  generally includes a main body portion  202  having a bottom region  204  defining a support reference plane P 2  and an upstanding sidewall  206  defining a body portion chamber  208  and a perimeter of the main body portion  202 . 
     As with the embodiment of  FIGS. 1-5 , sidewall  206  can include one or more surface features, such as a single rib or a plurality of ribs formed therein. As embodied herein, and with reference to  FIG. 6 , sidewall  206  can include a plurality of ribs  220  formed therein. For purpose of illustration, and not limitation, ribs  220  can be spaced from the upper region  212  and the bottom region  204 . Additionally or alternatively, ribs  220  can be evenly spaced apart from each other along the sidewall  206 . Sidewall  206  can include any suitable number of ribs  220 , and can be configured to reinforce the sidewall  206  and resist paneling, dents and other unwanted deformation of the sidewall  206 . As a further alternative, sidewall  206  can be free of ribs or other surface features between the upper region  212  and the bottom region  204 . 
     Additionally, and as embodied herein, container  200  includes a finish portion  210  disposed proximate an upper region  212  of the main body portion  202  opposite the bottom region  204 . As described further below, the finish portion  210  defines a finish portion chamber  214  and an opening  216  in communication with body portion chamber  208 . As embodied herein, the finish portion  210  is configured to engage a lid member  250 . 
     In accordance with another aspect of the disclosed subject matter, with reference to  FIGS. 7 and 8 , as embodied herein, sidewall  206  can have a maximum transverse dimension d 2  greater than a maximum transverse dimension d 3  of the finish portion. For purpose of illustration, and not limitation, dimension d 2  can be about 10% greater than d 3 . The main body portion can include an angled transition portion  260  between the sealing lip  230  and the sidewall  206 . For purpose of illustration, and as embodied herein, angled transition region  260  can include a first radiused portion  262  extending at a first angle from sealing lip  230 . Additionally, and as embodied herein, angled transition region  260  can include a substantially flat transition surface  266  extending from the first radiused portion  262  to a second radiused portion  264 . The second radiused portion  264  can extend at a second angle from the transition surface  266  to the sidewall  206 . In this manner, the sidewall  206  and angled transition region  260  can define a rounded shape of the main body portion  202  in plan view. 
     Furthermore, and as embodied herein, container  200  includes a sealing lip  230  disposed between the main body portion  202  and the finish portion  210 . The sealing lip  230  extends inwardly from the perimeter of the main body portion  202 . The sealing lip  230  is configured to receive a sealing member  240  to seal the opening between the body portion chamber  208  and the finish portion chamber  214 . 
     With reference to  FIG. 8 , as embodied herein, the sealing lip  230  can be formed as a fold between the main body portion  202  and the finish portion  210 . For example, and as embodied herein, the fold forming sealing lip  130  can be V-shaped. An upper segment  232  of the sealing lip  230  can extend upwardly at an angle α 2  relative to the reference plane P 2 . For purpose of illustration and not limitation, angle α 2  can be between 10 degrees and 15 degrees, and as embodied herein angle α 2  can be 15 degrees. A lower segment  234  of the sealing lip  230  can extend downwardly at an angle β 2  relative to the reference plane P 2 , and which can depend at least in part on the weight and/or stretch of the parison in a blow-molding process, if utilized. For purpose of illustration and not limitation, angle β 2  can be within a range of 5 degrees to 20 degrees, and as embodied herein, angle β 2  can be 5 degrees. The sealing lip  230  can extend inwardly a distance d 4  from the perimeter of the main body portion  202 , and as embodied herein distance d 1  can be about 5 mm. 
     Referring now to  FIG. 9 , as embodied herein, container  200  can include a sealing member  240  secured to the sealing lip  230 . In this manner, sealing member  240  can seal opening  216  to isolate finish portion chamber  214  from body portion chamber  208 . The sealing member  240  can be formed from any suitable material to isolate finish portion chamber  214  from body portion chamber  208 . For purpose of illustration and not limitation, as embodied herein, sealing member  240  can be formed from a sheet of foil or film. For example, sealing member  240  can be formed from plastic, paper, metal or any other suitable material. The sealing member  240  can be secured to the sealing lip  230  using any suitable sealing technique. For purpose of illustration and not limitation, as embodied herein, sealing member  240  can be secured to the sealing lip  230  with an adhesive. Additionally or alternatively, sealing member  240  can be secured to sealing lip  230  by welding, bonding, press-fit or friction-fit engagement, threaded engagement or any other suitable engagement. 
     Additionally, and as embodied herein, container  200  can include a main product disposed in body portion chamber  208 . For purpose of illustration, and not limitation, the main product disposed in the body portion chamber  208  can be a powdered or granulated food product. Additionally, container  200  can include an additional item disposed in the finish portion chamber  214 , isolated from the body portion chamber  208 . Container  200  can include one or more additional items in the finish portion chamber  214 . 
     Referring now to  FIG. 10 , container  200  can include a lid  250  engaged to the finish portion  210 . Lid  250  can be any suitable configuration. For example, and as embodied herein, lid  250  can include a hinge to allow hinged opening and closing of lid  250  relative finish portion chamber  214  without removing lid  250  from finish portion  210 . Finish portion  210  can include any suitable engagement to engage lid  250 . For purpose of illustration, and as embodied herein, finish portion  210  can include a ridge  255  to snap engage lid  250 . Additionally or alternatively, lid  250  can include a hinged engagement or a threaded engagement to finish portion  210 . 
     In operation, a user can open or remove lid  250  as appropriate to access finish portion chamber  214 . The user can remove any additional item included in finish portion chamber  214 . The user can detach sealing member  240  from sealing lip  230  or rupture sealing member  230  if appropriate. For example, the user can peel away or perforate sealing member  240  to remove at least a portion of sealing member  240  to access body chamber portion  202 . In some embodiments, sealing member  240  can be disposed once removed from container  200 . Alternatively, sealing member  240  can be reattached to sealing lip  230  to re-seal opening  216 . In this manner, the additional product can be replaced into finish portion chamber  214 . Lid  250  can be closed to cover finish portion chamber  214  for future use. 
     Containers disclosed herein can be manufactured by any suitable process. For purpose of illustration and not limitation, and as embodied herein, containers disclosed herein are manufactured by a blow-molding process, including an extrusion blow molding process. Generally, the molding process will include two or more mold components having an inner mold surface generally corresponding to the desired shape of the container, as described herein. That is the inner mold surface will have corresponding surface features to form the outer surface of the main body portion, the sealing lip and the finish portion, respectively. The pressure and temperature of the materials to be blow molded will be controlled to provide the desired wall thickness as known in the art. Additional details of exemplary blow-molding techniques are described in U.S. Patent Application Publication No. 2012/0007289, which is incorporated by reference herein in its entirety. 
     Containers disclosed herein can be manufactured using any suitable materials. For example and not limitation, containers disclosed herein can be formed from PET, rPET, polypropylene, HDPE or other polymeric materials. 
     It is to be recognized that the dimensions and relative proportions of the main body portion, finish portion, sealing lip, etc. of the containers disclosed herein will vary according to the exact size and intended use of the containers. While generally cylindrical containers are illustrated in  FIGS. 1-10 , one of ordinary skill will recognize that any suitable shape and depth of food container can be employed and the disclosed subject matter is not so limited. Other suitable shapes include triangles, cones, ovals, various polygons, etc., having any suitable dimensions. 
     In addition to the specific embodiments claimed below, the disclosed subject matter is also directed to other embodiments having any other possible combination of the dependent features claimed below and those disclosed above. As such, the particular features presented in the dependent claims and disclosed above can be combined with each other in other manners within the scope of the disclosed subject matter such that the disclosed subject matter should be recognized as also specifically directed to other embodiments having any other possible combinations. Thus, the foregoing description of specific embodiments of the disclosed subject matter has been presented for purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosed subject matter to those embodiments disclosed. 
     It will be apparent to those skilled in the art that various modifications and variations can be made in the method and system of the disclosed subject matter without departing from the spirit or scope of the disclosed subject matter. Thus, it is intended that the disclosed subject matter include modifications and variations that are within the scope of the appended claims and their equivalents.