Patent Publication Number: US-2023159257-A1

Title: Cup system for simultaneous delivery of contents from separated cups to a mouth of a user

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates generally to a drinking cup system, and more specifically to a drinking cup with multiple reservoirs. 
     2. Discussion of the Related Art 
     Various systems and processes are known in the art for drinking cup with multiple reservoirs. 
     A cup is a type of container used to hold liquids for pouring or drinking, storing solids for pouring (e.g., sugar, flour, grains), etc. Cups may be made of materials such as glass, metal, plastic, or other suitable materials. In some cases, cups may be fixed with a stem or a handle to assist the user in using the cup. Different cups can be used for different types of contents as well as for different types of applications (e.g., such as a coffee mug for coffee, pint glasses for cocktails, water bottles for water or sports drinks, etc.). 
     Traditionally, a cup includes a reservoir for holding such contents (e.g., whether the contents be solid or liquid). In some cases, a user may desire to keep certain contents separate, which may require multiple cups. There is a need in the art for a cup that can efficiently hold different contents of different types (e.g., such as solid contents and liquid contents), without requiring the contents be mixed within a single reservoir of the cup. 
     SUMMARY 
     An apparatus, system, and method for a drinking cup with multiple reservoirs are described. Specifically, an apparatus, system, and method for simultaneous delivery of contents from separated areas of a cup system to a mouth of a user are described. 
     In some embodiments, a cup system for simultaneous delivery of contents from separated cups to a mouth of a user is described. One or more aspects of the cup system include an outer cup, a lid, a cap, and an inner cup. In some aspects, the outer cup is configured to hold a liquid edible product and the inner cup is configured to hold a dry edible product. 
     The outer cup includes an upper lip comprising a threaded surface configured to engage with a mating threaded surface. 
     The lid comprises an outer wall, an inner wall, a fluid passage, and a vent hole. The outer wall has a lower outer lip comprising the mating threaded surface, wherein the mating threaded surface is configured to engage with the threaded surface. The inner wall defines a central opening, wherein a top edge of the inner wall is connected to a top edge of the outer wall, the inner wall comprising at least one engagement feature configured to engage with a mating engagement feature in a cap and having a lower inner lip configured to engage with an inner cup. The fluid passage in the lid is interposed between the lower outer lip and an inner edge of the lid, wherein the inner edge is at a periphery of the central opening. 
     The cap comprises the mating engagement feature and an opening. The mating engagement feature is configured to engage with the inner wall engagement feature, whereby upon engagement of the engagement features the cap is removably coupled to the lid and the central opening is spanned by the cap. 
     The inner cup comprises an engaging lip and a flange. The engaging lip is configured to engage with the lower inner lip and configured to form a seal between the inner cup and the lid. The flange is located below the engaging lip and extending outward from a periphery of the inner cup, wherein when the cup system is assembled by placing a first contents in the inner cup and engaging the lid with the inner cup, the outer cup, and the cap, wherein the cap opening is configured to pass the first contents out of the inner cup in response to at least partial inversion of the cup. 
     A method and system for providing a cup system for simultaneous delivery of contents from separated areas to a mouth of a user are described. One or more aspects of the method and system include providing an inner cup configured to hold a contents, wherein the inner cup includes an engaging lip and a flange located below the engaging lip and extending outward from a periphery of the inner cup. The method and system include coupling a lid to the inner cup, the lid having an inner wall with an inner lip configured to engage with the inner cup. The coupling further includes engaging the engaging lip of the inner cup with the inner lip of the lid, and the inner wall further includes at least one engagement feature configured to engage with a mating engagement feature in a cap. The lid further comprises an outer wall having an outer lip comprising a threaded surface, where a top edge of the inner wall is connected to a top edge of the outer wall. The inner wall further defines a central opening, and the lid further includes a vent hole and a fluid passage interposed between the lower outer lip and an inner edge of the lid, where the inner edge is at a periphery of the central opening. 
     The method and system further include coupling an outer cup to the lid by engaging a threaded surface of an upper lip of the cup to the threaded surface of the outer lip of the lid, where the inner cup is nested within the outer cup with a space between the outer cup and the inner cup. The method and system include coupling a cap to the lid by engaging an engagement feature of the cap with the inner wall engagement feature, where the cap is removably coupled to the lid and an opening in the cap provides a passage to an interior of the inner cup, and where the cap opening is configured to pass the contents out of the inner cup in response to at least partial inversion of the cup. 
     A method and system for using a drinking cup with multiple reservoirs are also described. One or more aspects of the method and system include retaining an inner cup holding a first contents, wherein the inner cup includes an engaging lip, and a flange located below the engaging lip and extending outward from a periphery of the inner cup. The method and system include coupling a lid to the inner cup, the lid having an inner wall with an inner lip configured to engage with the inner cup. The coupling further includes engaging the engaging lip of the inner cup with the inner lip of the lid, the inner wall further including at least one engagement feature configured to engage with a mating engagement feature in a cap. The lid includes an outer wall having an outer lip comprising a threaded surface, wherein a top edge of the inner wall is connected to a top edge of the outer wall. The inner wall further defining a central opening, the lid further including a vent hole and a fluid passage interposed between the lower outer lip and an inner edge of the lid, wherein the inner edge is at a periphery of the central opening. 
     The method and system further include retaining a second contents in an outer cup and coupling the outer cup to the lid by engaging a threaded surface of an upper lip of the outer cup to the threaded surface of the outer lip of the lid, whereby the inner cup is nested within the outer cup with a space between the outer cup and the inner cup and the second contents in the space. The method and system further include coupling a cap to the lid by engaging an engagement feature of the cap with the inner wall engagement feature, whereby the cap is removably coupled to the lid and an opening in the cap provides a passage to an interior of the inner cup, whereby the cup system is formed. 
     The method and system include inverting, at least partially, the cup system such that the cap opening is located above the fluid passage, whereby the second contents is discharged through the fluid passage and the first contents is simultaneously discharged through the cap opening. 
     A cup system for simultaneous delivery of contents from separated areas to a mouth of a user is described. One or more aspects of the apparatus and system include an outer cup comprising an upper lip comprising a threaded surface configured to engage with a mating threaded surface. One or more aspects of the apparatus and system include a lid comprising an outer wall having a lower outer lip comprising the mating threaded surface, the mating threaded surface configured to engage with the threaded surface. The lid includes an inner wall defining a central opening, wherein a top edge of the inner wall is connected to a top edge of the outer wall, the inner wall comprising at least one engagement feature configured to engage with a mating engagement feature in a cap, the inner wall further comprising an inner ledge configured to support an outer flange of a pod cup. The lid further includes a fluid passage and a vent. The fluid passage in the lid is interposed between the lower outer lip and an inner edge of the lid, wherein the inner edge is at a periphery of the central opening. 
     One or more aspects of the apparatus and system include a pod cup comprising an engaging lip including the outer flange configured to seat on and be supported by the inner lip of the lid such that a body of the pod cup extends downwards from the lid and an interior volume of the pod cup is in communication with the central opening. One or more aspects of the apparatus and system include a cap comprising the mating engagement feature configured to engage with the inner wall engagement feature, whereby upon engagement of the engagement features the cap is removably coupled to the lid and the central opening is spanned by the cap. The cap includes a lower rim configured such that when the engagement features are engaged, the outer flange is compressibly interposed between the inner lip of the lid and the lower rim of the cap, whereby a fluid seal is formed between the pod cup, the cap, and the lid. The cap further includes an opening, such that when the cup system is assembled by placing a contents in the inner cup and engaging the lid with the pod cup, the outer cup and the cap, the cap opening is configured to pass the contents out of the inner cup in response to at least partial inversion of the cup. 
     A method for simultaneous delivery of contents from separated areas to a mouth of a user is described. One or more aspects of the method include removing a pod lid from a pod cup and exposing a first contents held within the pod cup, the pod cup comprising an engaging lip including an outer flange configured to seat on and be supported by a lid of the cup system such that a body of the pod cup extends downwards from the lid and an interior volume of the pod cup is in communication with a central opening of the lid. One or more aspects of the method include inserting the pod into the central opening of the lid, the lid having an inner wall with an inner lip configured to engage with the inner cup. The coupling further includes engaging the engaging lip of the inner cup with the inner lip of the lid, the inner wall further comprising at least one engagement feature configured to engage with a mating engagement feature in a cap, and the lid further comprising an outer wall having an outer lip comprising a threaded surface. A top edge of the inner wall is connected to a top edge of the outer wall, the inner wall further defining the central opening, and the lid further comprising a vent hole and a fluid passage interposed between the lower outer lip and an inner edge of the lid. The inner edge is at a periphery of the central opening; retaining a second contents in an outer cup. 
     One or more aspects of the method further include coupling the outer cup to the lid by engaging a threaded surface of an upper lip of the outer cup to the threaded surface of the outer lip of the lid, whereby the inner cup is nested within the outer cup with a space between the outer cup and the inner cup and the second contents in the space. One or more aspects of the method include coupling, removably, the cap to the lid by engaging the mating engagement feature with the inner wall engagement feature, whereby the outer flange is compressibly interposed between the inner lip of the lid and the lower rim of the cap. Further, a fluid seal is formed between the pod cup, the cap, and the lid. The cap opening is configured to pass the contents out of the inner cup in response to at least partial inversion of the cup. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG.  1    shows an example of a perspective view of the cup system according to aspects of the present disclosure. 
         FIG.  2    shows an example of a cross section of the cup system according to aspects of the present disclosure. 
         FIG.  3    shows an example of a top view of the cup system according to aspects of the present disclosure. 
         FIG.  4    shows an example of a lid of the cup system according to aspects of the present disclosure. 
         FIG.  5    shows an example of a cap of the cup system according to aspects of the present disclosure. 
         FIG.  6    shows an example of an inner cup of the cup system according to aspects of the present disclosure. 
         FIG.  7    shows an example of a pod of the cup system according to aspects of the present disclosure. 
         FIG.  8    shows an example of a junction of the cup system including the pod according to aspects of the present disclosure. 
         FIG.  9    shows an example of a junction of the cup system including the inner cup according to aspects of the present disclosure. 
         FIG.  10    shows an example of a cross section of the closed cup system according to aspects of the present disclosure. 
         FIG.  11    shows an example of a cross section of the open cup system according to aspects of the present disclosure. 
         FIG.  12    shows an example of a perspective view cross section of the cup system according to aspects of the present disclosure. 
         FIGS.  13  through  14    show examples of a method for using a drinking cup system according to aspects of the present disclosure. 
         FIG.  15    shows an example of a system for manufacturing a drinking cup system according to aspects of the present disclosure. 
         FIGS.  16  through  17    show examples of a method for manufacturing a drinking cup system according to aspects of the present disclosure. 
         FIG.  18    shows an example of a method for manufacturing a drinking cup system according to aspects of the present disclosure. 
     
    
    
     DETAILED DESCRIPTION 
     The following description is not to be taken in a limiting sense, but is made merely for the purpose of describing the general principles of exemplary embodiments. The scope of the invention should be determined with reference to the claims. 
     Reference throughout this specification to “one embodiment,” “an embodiment,” or similar language means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, appearances of the phrases “in one embodiment,” “in an embodiment,” and similar language throughout this specification may, but do not necessarily, all refer to the same embodiment. 
     Furthermore, the described features, structures, or characteristics of the invention may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided, such as examples of programming, software modules, user selections, network transactions, database queries, database structures, hardware modules, hardware circuits, hardware chips, etc., to provide a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention can be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the invention. 
     The present disclosure relates generally to a drinking cup system, and more specifically to a drinking cup with multiple reservoirs for simultaneous delivery of contents from separated reservoirs to a mouth of a user. In some embodiments, the present disclosure provides a cup system with a containment volume for a liquid content and another containment volume for a solid content. In another embodiment, the present disclosure provides a pod (e.g., a prefilled pod, a disposable pod, a reusable pod, etc.) that contains a solid content for consumption for use in conjunction within the cup system. 
     Traditional cups or cup systems provide a single reservoir (e.g., a single volume) for storing content. If a user wants to combine both a solid content and a liquid content, the user would be required to mix the two in a single vessel. In some cases, a user may wish to maintain certain contents separately. For instance, in the case of milk and cereal, mixing such contents may cause the cereal to become soggy over time. There is a need in the art for improved cup systems such that users may separately store contents without requiring multiple cup systems, which may otherwise be more cumbersome for the user to manage. 
     The present disclosure describes a portable cup system where contents (e.g., solid content and liquid content) can be separated until the user desires mixing of the contents (e.g., or separate access to each of the contents). For example, a user can access a solid content from one of the containment volumes, then the user can access liquid content separately. As such, the cup system may separately store, and provide simultaneous access to, multiple contents that do not mix until the user chooses to do so. 
       FIG.  1    shows an example of a perspective view of the cup system  100  according to aspects of the present disclosure. In one aspect, cup system  100  includes outer cup  105 , lid  110 , and cap  115 . Cup system  100  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  2 ,  3 , and  10 - 12   . 
       FIG.  2    shows an example of a cross section of the cup system  200  according to aspects of the present disclosure. In one aspect, cup system  200  includes outer cup  205 , inner cup  215 , lid  230 , cap  240 , and engagement feature  245 . Cup system  200  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  1 ,  3 , and  10 - 12   . 
     A cup system  200  for simultaneous delivery of contents from separated cups to a mouth of a user is described. One or more aspects of the cup system  200  include an outer cup  205 , a lid  230 , a cap  240 , and an inner cup  215 . In some aspects, the outer cup  205  is configured to hold a liquid edible product and the inner cup  215  is configured to hold a dry edible product. 
     Outer cup  205  includes an upper lip comprising a threaded surface  210  configured to engage with a mating threaded surface  235 . 
     Lid  230  includes an outer wall having a lower outer lip comprising the mating threaded surface  235 , the mating threaded surface  235  configured to engage with the threaded surface  210 . Lid  230  further includes an inner wall defining a central opening, wherein a top edge of the inner wall is connected to a top edge of the outer wall, the inner wall comprising at least one engagement feature  245  configured to engage with a mating engagement feature in a cap  240  and having a lower inner lip configured to engage with an inner cup  215 . The inner wall of the lid  230  includes engagement feature  245  for aligning the cap  240  to the lid  230 . The lid may include one or more engagement features  245  and the cap may include one or more mating engagement features. The engagement feature  245  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  4 ,  10  and  11   . 
     Further, a fluid passage in the lid  230  is interposed between the lower outer lip and an inner edge of the lid  230 , where the inner edge is at a periphery of the central opening. The lid  230  includes a vent hole. In some aspects, the fluid passage may provide the content of the outer cup  205  to the user. 
     Cap  240  includes the mating engagement feature configured to engage with the inner wall engagement feature  245  of the lid  230 . Upon engagement of the engagement features the cap  240  is removably coupled to the lid  230  and the central opening is spanned by the cap  240 . The cap  240  further includes an opening (e.g., as described in more detail herein, for example, with reference to  FIG.  5   ). 
     Inner cup  215  includes an engaging lip  220  configured to engage with the lower inner lip of the lid  230  and configured to form a seal between the inner cup  215  and the lid  230 . Inner cup  215  further includes a flange  225  located below the engaging lip  220  that extends outward from a periphery of the inner cup  215 . The cup system  200  is assembled by placing a first contents in the inner cup  215  and engaging the lid  230  with the inner cup  215 , the outer cup  205 , and the cap  240 . The cap  240  opening is configured to pass the first contents out of the inner cup  215  (e.g., in response to at least partial inversion of the cup). 
     In some aspects, the cap  240  and the inner wall of the lid  230  further include matching key structures such that coupling of the cap  240  to the inner wall requires matching of the key structures. 
     Some examples of the apparatus, system, and method further include an outer surface of the outer wall comprising a textured surface for gripping. 
     Some examples of the apparatus, system, and method further include a threaded plug including a flange  225  made of insulating materials, wherein the threaded plug is configured to couple to the lid  230  in place of the inner cup  215 . 
     Some examples of the apparatus, system, and method further include an interference fit plug including a flange  225  made of insulating materials, wherein the threaded plug is configured to couple to the lid  230  in place of the inner cup  215 . 
     In some aspects, the at least one engagement feature  245  of the inner wall includes at least one horizontal indentation. In some aspects, the mating engagement feature of the cap  240  includes at least one horizontal boss, wherein the at least one horizontal boss and the at least one horizontal indentation form a snap-lock coupling. 
     The outer cup  205  may include male or female threads or use a push-on connection into the lid  230  with seals. The outer cup  205  may be plastic, stainless steel, or any other composites to aid in cosmetic and insulation properties. 
     Generally, embodiments of the present disclosure may include a male thread or a female thread for the inner cup  215  and outer cup  205  connection. 
     In some examples, the inner cup  215  may include a baffle and male or female threads. The baffle may also be a push-onto lid  230 . The baffle can be molded into lid  230  as one unit or can be a separate ring. In some examples, a baffle ring may be used for flow control. The inner cup  215  may accept the pods. 
     In one aspect, outer cup  205  includes threaded surface  210 . Outer cup  205  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  1 ,  9 , and  12   . Inner cup  215  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  6 ,  9 , and  12   . In one aspect, inner cup  215  includes engaging lip  220  and flange  225 . Engaging lip  220  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  6 ,  7 , and  9   . Flange  225  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  6  and  9   . In one aspect, lid  230  includes mating threaded surface  235 . Lid  230  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  1 ,  3 ,  4 ,  8 ,  9 , and  12   . Cap  240  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  1 ,  3 ,  5 ,  8 , and  12   . 
       FIG.  3    shows an example of a top view of the cup system  300  according to aspects of the present disclosure. In one aspect, cup system  300  includes lid  305  and cap  320 . In one aspect, lid  305  includes fluid passage  310  and vent hole  315 . In one aspect, cap  320  includes opening  325 . Cup system  300  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  1 ,  2 , and  10 - 12   . 
     As described herein, the opening  325  of the cap  320  is configured to pass the first contents (e.g., solid contents, dry contents, edible contents, etc.) out of the inner cup in response to at least partial inversion of the cup system  300 . Further, the vent hole  315  may be configured to pass other contents (e.g., liquid contents, wet contents, drinkable contents, etc.) out of the outer cup in response to at least partial inversion of the cup system  300 . 
     Lid  305  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  1 ,  2 ,  4 ,  8 ,  9 , and  12   . Fluid passage  310  is an example of, or includes aspects of, the corresponding element described with reference to  FIG.  4   . Vent hole  315  is an example of, or includes aspects of, the corresponding element described with reference to  FIG.  4   . Cap  320  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  1 ,  2 ,  5 ,  8 , and  12   . Opening  325  is an example of, or includes aspects of, the corresponding element described with reference to  FIG.  5   . 
       FIG.  4    shows an example of a lid  400  of the cup system according to aspects of the present disclosure. In one aspect, lid  400  includes outer wall  405 , inner wall  410 , fluid passage  415 , vent hole  420 , and engagement feature  425 . Lid  400  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  1 - 3 ,  8 ,  9 , and  12   . 
     Lid  400  may include a top rim is interposed between the top edge of the outer wall  405  and the top edge of the inner wall  410 . In some aspects, the fluid passage  415  is located in the top rim. 
     In some aspects, the top rim is angled upward from the fluid passage  415  such that the fluid passage  415  is positioned at a trough of the top rim. In some aspects, the rim arcs slightly and continuously upward from the fluid passage  415 . 
     In some aspects, vent hole  420  is located in the top rim. In some aspects, the fluid passage  415  is an open slot. In some aspects, the vent hole  420  is located generally opposite to the fluid passage  415 . In some examples, the vent hole  420  is located next to the fluid passage  415 . Alternatively, the vent and fluid passage  415  may be located at any position on the lid  400 . 
     In some aspects, an outer surface of a portion of the lid  400  surrounding the vent hole  420  is a raised convex oval shape. In some examples, the corresponding lower surface of the portion is a concave oval shape. 
     In some aspects, the at least one engagement feature of the lid  400  inner wall  410  includes a horizontal rib. In some aspects, the cap has a raised, convex shape. Additionally, the inner wall  410  includes engagement feature  425 , configured to align the cap or a pod with the lid. The engagement feature  425  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  2 ,  10  and  11   . 
     In some aspects, the lid  400  has a funnel design. In some aspects, the lid  400  has a reverse funnel design. Funnel and reverse funnel designs may be used with inner and outer snap rings to hold an outer cup and pod. In some aspects, the lid  400  may include an outer snap ring with a molded inner cup or pod as one unit. 
     The lid  400  may be used to cover or contain contents in a cup system. In some embodiments, the lid  400  is used to maintain the temperature of the contents of the cup system. A textured collar may be used on the lid  400 . 
     Some embodiments of the present disclosure may use a reusable lid  400 . Some embodiments of the present disclosure may use a disposable lid  400 . 
     In some examples, the vent hole  420  may be raised. In some aspects, the vent hole  420  may be used to control the airflow into the liquid chamber of the cup, therefore controlling liquid flow from the fluid passage  415  (e.g., when the cup is inverted). As a result, the airway (vent hole  420 ) may be sealed off with little finger pressure and can be used when visually impaired due, for example, while driving. 
     Outer wall  405  is an example of, or includes aspects of, the corresponding element described with reference to  FIG.  10   . Inner wall  410  is an example of, or includes aspects of, the corresponding element described with reference to  FIG.  10   . Fluid passage  415  is an example of, or includes aspects of, the corresponding element described with reference to  FIG.  3   . Vent hole  420  is an example of, or includes aspects of, the corresponding element described with reference to  FIG.  3   . 
       FIG.  5    shows an example of a cap  500  of the cup system according to aspects of the present disclosure. In one aspect, cap  500  includes mating engagement feature  505  and opening  510 . Cap  500  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  1 - 3 ,  8 , and  12   . 
     Some examples of the apparatus, system, and method further include a cap  500  lid configured to cover the opening  510 . Some examples of the apparatus, system, and method further include a cap  500  lid that attaches to the cap  500  and flips into a position to cover the opening  510 . Some examples of the apparatus, system, and method further include a cap  500  lid that is configured to snap to the cap  500  to cover the opening  510 . 
     Embodiments of the present disclosure may use a reusable cap  500 . For example, a standard snap-in cap  500  with alignment keys, flip-lid, or a rotating cap  500  for spill-proof application of the dry material may be used. Therefore, the pod may be held in position. 
     Opening  510  provides the user with the contents of the inner cup. The opening  510  may be large enough for solid material such as cereal to pass through without clogging, but the present disclosure is not limited thereto and the opening  510  may be relatively small. Opening  510  is an example of, or includes aspects of, the corresponding element described with reference to  FIG.  3   . 
     In some examples, mating engagement feature  505  in a cap  500  has a lower inner lip (e.g., male or female threading) configured to engage with the inner wall engagement feature of the lid. The mating engagement feature  505  may be a notch providing a place for the engagement feature of the lid to insert. As such, the cap may be substantially aligned to the lid. 
       FIG.  6    shows an example of an inner cup  600  of the cup system according to aspects of the present disclosure. In one aspect, inner cup  600  includes engaging lip  605  and flange  610 . Inner cup  600  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  2 ,  9 , and  12   . 
     The engaging lip  605  is configured to engage with the lower inner lip of the lid (e.g., as shown in  FIG.  9   ) to form a seal between the inner cup  600  and the lid. The engaging lip  605  also includes a flange  610  located below the engaging lip  605  and extending outward from a periphery of the inner cup  600 . 
     The threaded plug (not shown) may be used to replace the inner cup  600  to convert the use to coffee/tea or other beverages. The threaded plug may be made of plastic and/or other composites with an insulated flange  610  to maintain the inner temperature of beverage. 
     Engaging lip  605  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  2 ,  7 , and  9   . Flange  610  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  2  and  9   . 
       FIG.  7    shows an example of a pod  700  of the cup system according to aspects of the present disclosure. In one aspect, pod  700  includes outer flange  705 , engaging lip  710 , and mating engagement feature  715 . Pod  700  is an example of, or includes aspects of, the corresponding element described with reference to  FIG.  8   . Engaging lip  710  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  2 ,  6 , and  9   . 
     Some examples of the apparatus, system, and method further include a pod  700  configured to be removably coupled to the cup system by sandwiching an outer flange  705  of the pod  700  between a ledge of the inner wall of the lid and a lower rim of the cap. 
     The pod  700  may be a conical cup made of plastic, paper, pulp, or other composites and may provide a long shelf life. The pod  700  may be a single-use for reusability and disposability. The exterior of the pod  700  may not commingle with liquid to mitigate contamination. Additionally, the pod  700  may be biodegradable to reduce resource waste. 
     According to some aspects, pod  700  is a cup comprising an engaging lip  710  including the outer flange  705  configured to seat on and be supported by the inner lip of the lid such that a body of the pod  700  cup extends downwards from the lid and an interior volume of the pod  700  cup is in communication with the central opening. The engaging lip  710  also includes a mating engagement feature  715  configured to align with the one or more engagement features of the lid. As such, the pod may be substantially aligned to the lid. 
     In some aspects, the outer flange  705  further includes a set of notches spaced around a perimeter of the flange, and where the inner wall further includes a set of bosses configured to be received by the set of notches, whereby rotation of the pod  700  cup with respect to the lid is prevented when the outer flange  705  is seated on the ledge. 
     Additionally, or alternatively, the pod  700  may include a cover (not shown) to fully or partially enclose the interior of the pod to hold a contents. The cover may be paper, foil, or the like and may be adhered to the engaging lip  710 . As such, the user may remove the cover prior to inserting the pod to access the contents in the pod. 
       FIG.  8    shows an example of a junction of the cup system including the pod  810  according to aspects of the present disclosure. The example shown includes lid  800 , cap  805 , and pod  810 . Lid  800  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  1 - 4 ,  9 , and  12   . Cap  805  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  1 - 3 ,  5 , and  12   . Pod  810  is an example of, or includes aspects of, the corresponding element described with reference to  FIG.  7   . 
     In some examples, lid  800  is configured to mate with the cap  805  and hold the pod  810  in place by sandwiching the outer flange  812  of the pod  810  between the lower rim  814  and the ledge  816 . 
       FIG.  9    shows an example of a junction of the cup system including the inner cup  910  according to aspects of the present disclosure. The example shown includes lid  900 , inner cup  910 , and outer cup  925 . 
     The lid  900  is engaged with the inner cup  910  with a set of threads. The abutment of the lid  900  and inner cup  910  is due to the mating of the engaging lip  915  of the flange  920  against the lower inner lip  905  of the lid  900 . In some examples, the engaging lip  915  is the surface of the flange  920  which mates with the lower inner lip  905 . The lower inner lip  905  is a surface on the lid  900  which mates with the engaging lip  915 . 
     In one aspect, lid  900  includes lower inner lip  905 . Lid  900  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  1 - 4 ,  8 , and  12   . 
     In one aspect, inner cup  910  includes engaging lip  915  and flange  920 . Inner cup  910  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  2 ,  6 , and  12   . Engaging lip  915  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  2 ,  6 , and  7   . Flange  920  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  2  and  6   . 
     Outer cup  925  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  1 ,  2 , and  12   . 
       FIG.  10    shows an example of a cross section of the closed cup system  1000  according to aspects of the present disclosure. In one aspect, cup system  1000  includes spring-activated hinge  1005 , spring  1010 , outer wall  1015 , inner wall  1020 , button  1025 , fluid passage-sealing arm  1030 , vent hole-sealing arm  1035 , and engagement feature  1040 . Cup system  1000  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  1 - 3 ,  11 , and  12   . 
     In some aspects, the fluid passage and the vent hole are controllably sealed by a mechanism coupled to the lid that is activated by a button  1025  coupled to the top rim of the lid. 
     Some examples of the apparatus, system, and method further include a mechanism comprising a spring-activated hinge  1005  coupled to a fluid passage-sealing arm  1030  and a vent hole-sealing arm  1035 , wherein the hinge is biased such that the arms automatically seal the fluid passage and the vent hole and pressing the button  1025  biases the spring  1010  to unseal the fluid passage and the vent hole simultaneously. 
     The spring-activated hinge  1005  provides a spill-proof lid mechanism. The mechanism is triggered by a button  1025  located on the top surface of the lid. When the button  1025  is not depressed, the user may access the contents of the inner cup or pod. By depressing the button  1025 , the spring  1010  unseals the fluid passage and the vent hole simultaneously. Therefore, the user may access the contents of the outer cup. 
     Button  1025  is used to activate the spring-activated hinge  1005  to controllably seal the fluid passage and vent holes. 
     The spring  1010  is shown as a coil spring  1010 , but the present disclosure is not limited thereto and the spring  1010  may be a leaf spring  1010 , torsion spring  1010 , extension spring  1010 , air spring  1010 , or any type of conventional spring  1010 . 
     Spring-activated hinge  1005  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  11  and  12   . Spring  1010  is an example of, or includes aspects of, the corresponding element described with reference to  FIG.  11   . Outer wall  1015  is an example of, or includes aspects of, the corresponding element described with reference to  FIG.  4   . Inner wall  1020  is an example of, or includes aspects of, the corresponding element described with reference to  FIG.  4   . Button  1025  is an example of, or includes aspects of, the corresponding element described with reference to  FIG.  11   . Engagement feature  1040  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  2 ,  4 , and  11   . 
       FIG.  11    shows an example of a cross section of the open cup system  1100  according to aspects of the present disclosure. In one aspect, cup system  1100  includes spring-activated hinge  1105 , spring  1110 , button  1115 , and engagement feature  1120 . Cup system  1100  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  1 - 3 ,  10 , and  12   . 
     The button  1115  is activated and the spring-activated hinge  1105  is deviated from the fluid passage and vent hole, allowing the contents of the outer cup to pass through the fluid passage. 
     Spring-activated hinge  1105  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  10  and  12   . Spring  1110  is an example of, or includes aspects of, the corresponding element described with reference to  FIG.  10   . Button  1115  is an example of, or includes aspects of, the corresponding element described with reference to  FIG.  10   . Engagement feature  1120  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  2 ,  4 , and  10   . 
       FIG.  12    shows an example of a perspective view cross section of the cup system  1200  according to aspects of the present disclosure. In one aspect, cup system  1200  includes spring-activated hinge  1205 , outer cup  1210 , inner cup  1215 , lid  1220 , and cap  1225 . Cup system  1200  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  1 - 3 ,  10 , and  11   . 
     In  FIG.  12   , the spring-activated hinge  1205  is shown in the closed position. 
     The outer cup  1210  is coupled to the lid  1220  using the threaded surface of the upper lip of the outer cup  1210 . The inner cup  1215  is located within the outer cup  1210  with space between the inner and outer cups  1210 . The lid  1220  is coupled to the outer cup  1210  and engages with the engaging lip of the inner cup  1215 . 
     Spring-activated hinge  1205  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  10  and  11   . Outer cup  1210  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  1 ,  2 , and  9   . Inner cup  1215  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  2 ,  6 , and  9   . Lid  1220  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  1 - 4 ,  8 , and  9   . Cap  1225  is an example of, or includes aspects of, the corresponding element described with reference to  FIGS.  1 - 3 ,  5 , and  8   . 
       FIG.  13    shows an example of a method  1300  for using a drinking cup system according to aspects of the present disclosure. In some examples, these operations are performed by a system including a processor executing a set of codes to control functional elements of an apparatus. Additionally, or alternatively, certain processes are performed using special-purpose hardware. Generally, these operations are performed according to the methods and processes described in accordance with aspects of the present disclosure. In some cases, the operations described herein are composed of various substeps, or are performed in conjunction with other operations. 
     At operation  1305 , the system retains an inner cup holding a first contents, where the inner cup includes an engaging lip, a flange located below the engaging lip and extending outward from a periphery of the inner cup. In some cases, the operations of this step refer to an inner cup as described with reference to  FIGS.  2 ,  6 ,  9 , and  12   . 
     At operation  1310 , the system couples a lid to the inner cup, the lid having an inner wall with an inner lip configured to engage with the inner cup, the coupling further including engaging the engaging lip of the inner cup with the inner lip of the lid. The inner wall further includes at least one engagement feature configured to engage with a mating engagement feature in a cap and the lid further includes an outer wall having an outer lip including a threaded surface, where a top edge of the inner wall is connected to a top edge of the outer wall. The inner wall further defines a central opening, and the lid further includes a vent hole and a fluid passage interposed between the lower outer lip and an inner edge of the lid, where the inner edge is at a periphery of the central opening. In some cases, the operations of this step refer to a lid as described with reference to  FIGS.  1 - 4 ,  8 ,  9   , and  12 . 
     At operation  1315 , the system retains a second contents in an outer cup. In some cases, the operations of this step refer to an outer cup as described with reference to  FIGS.  1 ,  2 ,  9 , and  12   . 
     At operation  1320 , the system couples the outer cup to the lid by engaging a threaded surface of an upper lip of the outer cup to the threaded surface of the outer lip of the lid, whereby the inner cup is nested within the outer cup with a space between the outer cup and the inner cup and the second contents in the space. In some cases, the operations of this step refer to an outer cup as described with reference to  FIGS.  1 ,  2 ,  9 , and  12   . 
     At operation  1325 , the system couples a cap to the lid by engaging an engagement feature of the cap with the inner wall engagement feature, whereby the cap is removably coupled to the lid and an opening in the cap provides a passage to an interior of the inner cup, whereby the cup system is formed. In some cases, the operations of this step refer to a cap as described with reference to  FIGS.  1 - 3 ,  5 ,  8 , and  12   . 
     At operation  1330 , the system inverts, at least partially, the cup system such that the cap opening is located above the fluid passage, whereby the second contents is discharged through the fluid passage and the first contents is simultaneously discharged through the cap opening. In some cases, the operations of this step refer to a cup system as described with reference to  FIGS.  1 - 3   , and  10 - 12 . 
     Some examples of the method  1300  further include placing a contents in the inner cup prior to coupling the cap to the lid. In some aspects, the contents are dry contents. Some examples of the method and system further include placing a contents in the outer cup prior to coupling the outer cup to the lid. 
     In some aspects, the cap and the inner wall of the lid further include matching key structure, and wherein the step of coupling of the cap to the lid further includes matching the key structures. 
     Some examples of the method  1300  further include coupling a cap lid to the cap, whereby the opening is covered. 
       FIG.  14    shows an example of a method  1400  for using a drinking cup system according to aspects of the present disclosure. In some examples, these operations are performed by a system including a processor executing a set of codes to control functional elements of an apparatus. 
     Additionally, or alternatively, certain processes are performed using special-purpose hardware. Generally, these operations are performed according to the methods and processes described in accordance with aspects of the present disclosure. In some cases, the operations described herein are composed of various substeps, or are performed in conjunction with other operations. 
     At operation  1405 , the system removes a pod lid from a pod cup, exposing a first contents held within the pod cup, the pod cup including an engaging lip including an outer flange configured to seat on and be supported by a lid of the cup system such that a body of the pod cup extends downwards from the lid and an interior volume of the pod cup is in communication with a central opening of the lid. In some cases, the operations of this step refer to a pod as described with reference to  FIGS.  7  and  8   . 
     At operation  1410 , the system inserts the pod into the central opening of the lid, the lid having an inner wall with an inner lip configured to engage with the inner cup, the coupling further including engaging the engaging lip of the inner cup with the inner lip of the lid. The inner wall further includes at least one engagement feature configured to engage with a mating engagement feature in a cap. The lid further includes an outer wall having an outer lip including a threaded surface, where a top edge of the inner wall is connected to a top edge of the outer wall. The inner wall further defines the central opening, and the lid further includes a vent hole and a fluid passage interposed between the lower outer lip and an inner edge of the lid, where the inner edge is at a periphery of the central opening. In some cases, the operations of this step refer to a pod as described with reference to  FIGS.  7  and  8   . 
     At operation  1415 , the system retains a second contents in an outer cup. In some cases, the operations of this step refer to an outer cup as described with reference to  FIGS.  1 ,  2 ,  9 , and  12   . 
     At operation  1420 , the system couples the outer cup to the lid by engaging a threaded surface of an upper lip of the outer cup to the threaded surface of the outer lip of the lid, whereby the inner cup is nested within the outer cup with a space between the outer cup and the inner cup and the second contents in the space. In some cases, the operations of this step refer to an outer cup as described with reference to  FIGS.  1 ,  2 ,  9 , and  12   . 
     At operation  1425 , the system removably couples the cap to the lid by engaging the mating engagement feature with the inner wall engagement feature, whereby the outer flange is compressibly interposed between the inner lip of the lid and the lower rim of the cap. In some examples, a fluid seal is formed between the pod cup, the cap, and the lid, and the cap opening is configured to pass the contents out of the inner cup in response to at least partial inversion of the cup. In some cases, the operations of this step refer to a cap as described with reference to  FIGS.  1 - 3 ,  5 ,  8 , and  12   . 
     In some aspects, the outer flange further includes a plurality of notches spaced around a perimeter of the flange, and wherein the inner wall further includes a plurality of bosses configured to be received by the plurality of notches, whereby rotation of the pod cup with respect to the lid is prevented when the outer flange is seated on the ledge. 
       FIG.  15    shows an example of a system for manufacturing a drinking cup system  1500  according to aspects of the present disclosure. In one aspect, system for manufacturing a drinking cup system  1500  includes manufacturing equipment  1505 , personnel  1510 , processor  1515 , memory  1520 , and software  1525 . 
     Manufacturing equipment  1505  may operate autonomously, via remote control, by personnel  1510 , etc. Manufacturing equipment  1505  may incorporate a variety of robotic and information systems to facilitate remote or independent operation. Manufacturing equipment  1505  may generally include various tools, robotic arms, molds, materials, chemicals, devices, etc. In some examples, manufacturing equipment  1505  may include a personal computer, laptop computer, mainframe computer, palmtop computer, personal assistant, mobile device, or any other suitable processing apparatus. 
     A processor  1515  is an intelligent hardware device, (e.g., a general-purpose processing component, a digital signal processor (DSP), a central processing unit (CPU), a graphics processing unit (GPU), a microcontroller, an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, the processor  1515  is configured to operate a memory array using a memory controller. In other cases, a memory  1520  controller is integrated into the processor  1515 . In some cases, the processor  1515  is configured to execute computer-readable instructions stored in a memory  1520  to perform various functions. In some embodiments, a processor  1515  includes special purpose components for modem processing, baseband processing, digital signal processing, or transmission processing. 
     Examples of a memory  1520  include random access memory (RAM), read-only memory (ROM), or a hard disk. Examples of memory  1520  include solid state memory and a hard disk drive. In some examples, memory  1520  is used to store computer-readable, computer-executable software  1525  including instructions that, when executed, cause a processor  1515  to perform various functions described herein. In some cases, the memory  1520  contains, among other things, a basic input/output system (BIOS) which controls basic hardware or software  1525  operation such as the interaction with peripheral components or devices. In some cases, a memory controller operates memory cells. For example, the memory controller can include a row decoder, column decoder, or both. In some cases, memory cells within a memory  1520  store information in the form of a logical state. 
     Software  1525  may include code to implement aspects of the present disclosure. Software  1525  may be stored in a non-transitory computer-readable medium such as system memory  1520  or other memory  1520 . In some cases, the software  1525  may not be directly executable by the processor  1515  but may cause a computer (e.g., when compiled and executed) to perform functions described herein. 
     A database is an organized collection of data. For example, a database stores data in a specified format known as a schema. A database may be structured as a single database, a distributed database, multiple distributed databases, or an emergency backup database. In some cases, a database controller may manage data storage and processing in a database. In some cases, a user interacts with database controller. In other cases, database controller may operate automatically without user interaction. 
       FIG.  16    shows an example of a method  1600  for manufacturing a drinking cup system according to aspects of the present disclosure. In some examples, these operations are performed by a system including a processor executing a set of codes to control functional elements of an apparatus. Additionally, or alternatively, certain processes are performed using special-purpose hardware. Generally, these operations are performed according to the methods and processes described in accordance with aspects of the present disclosure. In some cases, the operations described herein are composed of various substeps, or are performed in conjunction with other operations. 
     At operation  1605 , the system provides an inner cup configured to hold a contents, where the inner cup includes an engaging lip and a flange located below the engaging lip and extending outward from a periphery of the inner cup. In some cases, the operations of this step refer to an inner cup as described with reference to  FIGS.  2 ,  6 ,  9 , and  12   . In some cases, the operations of this step refer to, or may be performed by, a system for manufacturing a drinking cup system  1500  as described with reference to  FIG.  15   . 
     At operation  1610 , the system couples a lid to the inner cup, the lid having an inner wall with an inner lip configured to engage with the inner cup. The coupling further includes engaging the engaging lip of the inner cup with the inner lip of the lid, the inner wall further includes at least one engagement feature configured to engage with a mating engagement feature in a cap, and the lid further includes an outer wall having an outer lip including a threaded surface. In some examples, a top edge of the inner wall is connected to a top edge of the outer wall, the inner wall further defines a central opening, and the lid further includes a vent hole and a fluid passage interposed between the lower outer lip and an inner edge of the lid. In some examples, the inner edge is at a periphery of the central opening. In some cases, the operations of this step refer to a lid as described with reference to  FIGS.  1 - 4 ,  8 ,  9 , and  12   . In some cases, the operations of this step refer to, or may be performed by, a system for manufacturing a drinking cup system  1500  as described with reference to  FIG.  15   . 
     At operation  1615 , the system couples an outer cup to the lid by engaging a threaded surface of an upper lip of the cup to the threaded surface of the outer lip of the lid, whereby the inner cup is nested within the outer cup with a space between the outer cup and the inner cup. In some cases, the operations of this step refer to an outer cup as described with reference to  FIGS.  1 ,  2 ,  9 , and  12   . In some cases, the operations of this step refer to, or may be performed by, a system for manufacturing a drinking cup system  1500  as described with reference to  FIG.  15   . 
     At operation  1620 , the system couples a cap to the lid by engaging an engagement feature of the cap with the inner wall engagement feature, whereby the cap is removably coupled to the lid and an opening in the cap provides a passage to an interior of the inner cup. In some examples, the cap opening is configured to pass the contents out of the inner cup in response to at least partial inversion of the cup. In some cases, the operations of this step refer to a cap as described with reference to  FIGS.  1 - 3 ,  5 ,  8   , and  12 . In some cases, the operations of this step refer to, or may be performed by, a system for manufacturing a drinking cup system  1500  as described with reference to  FIG.  15   . 
       FIG.  17    shows an example of a method  1700  for manufacturing a drinking cup system according to aspects of the present disclosure. In some examples, these operations are performed by a system including a processor executing a set of codes to control functional elements of an apparatus. Additionally, or alternatively, certain processes are performed using special-purpose hardware. Generally, these operations are performed according to the methods and processes described in accordance with aspects of the present disclosure. In some cases, the operations described herein are composed of various substeps, or are performed in conjunction with other operations. 
     At operation  1705 , the system provides an outer cup including an upper lip including a threaded surface configured to engage with a mating threaded surface. In some cases, the operations of this step refer to an outer cup as described with reference to  FIGS.  1 ,  2 ,  9 , and  12   . In some cases, the operations of this step refer to, or may be performed by, a system for manufacturing a drinking cup system  1500  as described with reference to  FIG.  15   . 
     At operation  1710 , the system provides a lid including an outer wall, an inner wall, a fluid passage, and a vent. The outer wall has a lower outer lip including the mating threaded surface, the mating threaded surface configured to engage with the threaded surface. The inner wall defines a central opening, where a top edge of the inner wall is connected to a top edge of the outer wall, the inner wall including at least one engagement feature configured to engage with a mating engagement feature in a cap and having a lower inner lip configured to engage with an inner cup. The fluid passage in the lid is interposed between the lower outer lip and an inner edge of the lid, where the inner edge is at a periphery of the central opening. In some cases, the operations of this step refer to a lid as described with reference to  FIGS.  1 - 4 ,  8 ,  9 , and  12   . In some cases, the operations of this step refer to, or may be performed by, a system for manufacturing a drinking cup system  1500  as described with reference to  FIG.  15   . 
     At operation  1715 , the system provides a cap including the mating engagement feature and an opening. The mating engagement feature is configured to engage with the inner wall engagement feature, whereby upon engagement of the engagement features the cap is removably coupled to the lid and the central opening is spanned by the cap. In some cases, the operations of this step refer to a cap as described with reference to  FIGS.  1 - 3 ,  5 ,  8 , and  12   . In some cases, the operations of this step refer to, or may be performed by, a system for manufacturing a drinking cup system  1500  as described with reference to  FIG.  15   . 
     At operation  1720 , the system provides an inner cup including an engaging lip and a flange. The engaging lip is configured to engage with the lower inner lip and configured to form a seal between the inner cup and the lid. The flange is located below the engaging lip and extending outward from a periphery of the inner cup, where when the cup system is assembled by placing a first contents in the inner cup and engaging the lid with the inner cup, the outer cup and the cap, the cap opening is configured to pass the first contents out of the inner cup in response to at least partial inversion of the cup. In some cases, the operations of this step refer to an inner cup as described with reference to  FIGS.  2 ,  6 ,  9 , and  12   . In some cases, the operations of this step refer to, or may be performed by, a system for manufacturing a drinking cup system  1500  as described with reference to  FIG.  15   . 
     In some aspects, the cap and the inner wall of the lid further include matching key structures such that coupling of the cap to the inner wall requires matching of the key structures. 
     Some examples of the drinking cup system further include an outer surface of the outer wall comprising a textured surface for gripping. 
     Some examples of the drinking cup system further include a threaded plug including a flange made of insulating materials, wherein the threaded plug is configured to couple to the lid in place of the inner cup. 
     Some examples of the drinking cup system further include an interference fit plug including a flange made of insulating materials, wherein the threaded plug is configured to couple to the lid in place of the inner cup. 
     In some aspects, the at least one engagement feature of the inner wall includes at least one horizontal indentation. In some aspects, the mating engagement feature of the cap includes at least one horizontal boss, wherein the at least one horizontal boss and the at least one horizontal indentation form a snap-lock coupling. 
     Lid may include a top rim is interposed between the top edge of the outer wall and the top edge of the inner wall. In some aspects, the fluid passage is located in the top rim. 
     In some aspects, the top rim is angled upward from the fluid passage such that the fluid passage is positioned at a trough of the top rim. In some aspects, the rim arcs slightly and continuously upward from the fluid passage. 
     In some aspects, vent hole is located in the top rim. In some aspects, the fluid passage is an open slot. In some aspects, the vent hole is located generally opposite to the fluid passage. In some examples, the vent hole is located next to the fluid passage. 
     In some aspects, an outer surface of a portion of the lid surrounding the vent hole is a raised convex oval shape. In some examples, the corresponding lower surface of the portion is a concave oval shape. 
     In some aspects, the at least one engagement feature of the lid inner wall includes a horizontal rib. In some aspects, the cap has a raised, convex shape. 
     In some aspects, the lid has a funnel design. In some aspects, the lid has a reverse funnel design. 
     Some examples of the drinking cup system further include a pod configured to be removably coupled to the cup system by sandwiching an outer flange of the pod between a ledge of the inner wall of the lid and a lower rim of the cap. 
     In some aspects, the fluid passage and the vent hole are controllably sealed by a mechanism coupled to the lid that is activated by a button coupled to the top rim of the lid. 
     Some examples of the drinking cup system further include a mechanism comprising a spring-activated hinge coupled to a fluid passage-sealing arm and a vent hole-sealing arm, wherein the hinge is biased such that the arms automatically seal the fluid passage and the vent hole and pressing the button biases the spring to unseal the fluid passage and the vent hole simultaneously. 
     Some examples of the drinking cup system further include a cap lid configured to cover the opening. Some examples of the drinking cup system further include a cap lid that attaches to the cap and flips into a position to cover the opening. Some examples of the drinking cup system further include a cap lid that is configured to snap to the cap to cover the opening. 
       FIG.  18    shows an example of a method  1800  for manufacturing a drinking cup system according to aspects of the present disclosure. In some examples, these operations are performed by a system including a processor executing a set of codes to control functional elements of an apparatus. Additionally, or alternatively, certain processes are performed using special-purpose hardware. Generally, these operations are performed according to the methods and processes described in accordance with aspects of the present disclosure. In some cases, the operations described herein are composed of various substeps, or are performed in conjunction with other operations. 
     At operation  1805 , the system provides an outer cup including an upper lip including a threaded surface configured to engage with a mating threaded surface. In some cases, the operations of this step refer to an outer cup as described with reference to  FIGS.  1 ,  2 ,  9 , and  12   . In some cases, the operations of this step refer to, or may be performed by, a system for manufacturing a drinking cup system  1500  as described with reference to  FIG.  15   . 
     At operation  1810 , the system provides a lid including an outer wall, an inner wall, a fluid passage, and a vent. The outer wall has a lower outer lip including the mating threaded surface, the mating threaded surface configured to engage with the threaded surface. The inner wall defines a central opening, where a top edge of the inner wall is connected to a top edge of the outer wall, the inner wall including at least one engagement feature configured to engage with a mating engagement feature in a cap. The inner wall further includes an inner ledge configured to support an outer flange of a pod cup. The fluid passage in the lid is interposed between the lower outer lip and an inner edge of the lid, where the inner edge is at a periphery of the central opening. In some cases, the operations of this step refer to a lid as described with reference to  FIGS.  1 - 4 ,  8 ,  9 , and  12   . In some cases, the operations of this step refer to, or may be performed by, a system for manufacturing a drinking cup system  1500  as described with reference to  FIG.  15   . 
     At operation  1815 , the system provides a pod cup including an engaging lip including the outer flange configured to seat on and be supported by the inner lip of the lid such that a body of the pod cup extends downwards from the lid and an interior volume of the pod cup is in communication with the central opening. In some cases, the operations of this step refer to a pod as described with reference to  FIGS.  7  and  8   . In some cases, the operations of this step refer to, or may be performed by, a system for manufacturing a drinking cup system  1500  as described with reference to  FIG.  15   . 
     At operation  1820 , the system provides a cap including the mating engagement feature, a lower rim, and an opening. The mating engagement feature is configured to engage with the inner wall engagement feature, whereby upon engagement of the engagement features the cap is removably coupled to the lid and the central opening is spanned by the cap. The lower rim is configured such that when the engagement features are engaged, the outer flange is compressibly interposed between the inner lip of the lid and the lower rim of the cap, whereby a fluid seal is formed between the pod cup, the cap, and the lid. When the cup system is assembled by placing a contents in the inner cup and engaging the lid with the pod cup, the outer cup and the cap, the cap opening is configured to pass the contents out of the inner cup in response to at least partial inversion of the cup. In some cases, the operations of this step refer to a cap as described with reference to  FIGS.  1 - 3 ,  5 ,  8 , and  12   . In some cases, the operations of this step refer to, or may be performed by, a system for manufacturing a drinking cup system  1500  as described with reference to  FIG.  15   . 
     In some examples, the outer flange further comprises a plurality of notches spaced around a perimeter of the flange, and wherein the inner wall further comprises a plurality of bosses configured to be received by the plurality of notches, whereby rotation of the pod cup with respect to the lid is prevented when the outer flange is seated on the ledge. 
     While the invention herein disclosed has been described by means of specific embodiments, examples and applications thereof, numerous modifications and variations could be made thereto by those skilled in the art without departing from the scope of the invention set forth in the claims.