A drinking cup that has a lid with a receiving portion is provided. The receiving portion may have a flow control engagement surface. A flow control element that may be configured for releasable attachment with the lid may be included and can have an attachment portion. The attachment portion may ha
A drinking cup that has a lid with a receiving portion is provided. The receiving portion may have a flow control engagement surface. A flow control element that may be configured for releasable attachment with the lid may be included and can have an attachment portion. The attachment portion may have a lid engagement surface. When the flow control element and the lid are attached, the flow control engagement surface engages the lid engagement surface. At least one of the flow control engagement surface and the lid engagement surface may have a concave shape.
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1. A drinking cup, comprising: a lid having a receiving portion, wherein the receiving portion has a projection receiving surface and a flow control engagement surface that extends from the projection receiving surface;a flow control element having an attachment portion that has a longitudinal axis
1. A drinking cup, comprising: a lid having a receiving portion, wherein the receiving portion has a projection receiving surface and a flow control engagement surface that extends from the projection receiving surface;a flow control element having an attachment portion that has a longitudinal axis that extends in a longitudinal direction, wherein the attachment portion has a projection and a lid engagement surface that extends from the projection, wherein the flow control element has a base and wherein the lid engagement surface is between the projection and the base in the longitudinal direction, wherein the flow control element is configured for releasable attachment with the lid, wherein when the flow control element and the lid are attached the flow control engagement surface engages the lid engagement surface, and wherein when the flow control element and the lid are attached the projection engages the projection receiving surface; anda valve carried by the flow control element;wherein the projection is located radially outward from the lid engagement surface and is located on a terminal end of the flow control element that directly faces the lid, wherein the valve is located within a footprint of the perimeter of the projection, wherein the receiving portion is located radially outward from the projection. 2. The drinking cup as set forth in claim 1, wherein the lid has a dispensing opening, wherein the projection receiving surface is located closer to the dispensing opening than the flow control engagement surface, and wherein the projection is located closer to the dispensing opening than the lid engagement surface when the lid and the flow control element are attached. 3. The drinking cup as set forth in claim 1, wherein the receiving portion has a longitudinal axis, and wherein the longitudinal axis of the attachment portion is coaxial with the longitudinal axis of the receiving portion when the lid and the flow control element are attached, wherein the projection and the lid engagement surface are contiguous with one another and wherein the projection is located radially outward from at least a majority of the lid engagement surface. 4. The drinking cup as set forth in claim 1, wherein at least a majority of the lid engagement surface is concave in shape, wherein at least a majority of the flow control engagement surface is convex in shape, and wherein the portion of the lid engagement surface that is concave in shape is complimentary in shape to the portion of the flow control engagement surface that is convex in shape. 5. The drinking cup as set forth in claim 1, wherein the flow control element has a valve receiving portion that has an upper surface and a notch and a step, wherein the valve engages the step; and further comprising a valve retainer that engages the valve and that has a projection that is disposed within the notch, wherein the valve retainer has an upper surface that is flush with the upper surface of the valve receiving portion. 6. A drinking cup, comprising: a lid having a receiving portion, wherein the receiving portion has a projection receiving surface and a flow control engagement surface that extends from the projection receiving surface;a flow control element having an attachment portion that has a longitudinal axis, wherein the attachment portion has a projection and a lid engagement surface that extends from the projection, wherein when the flow control element and the lid are attached the flow control engagement surface engages the lid engagement surface, and wherein when the flow control element and the lid are attached the projection engages the projection receiving surface; anda valve carried by the flow control element; wherein the projection is located radially outward from the lid engagement surface and is located on a terminal end of the flow control element that directly faces the lid, wherein the valve is located within a footprint of the perimeter of the projection;wherein the lid has a second receiving portion that has a second projection receiving surface and a second flow control engagement surface that extends from the second projection receiving surface;wherein the flow control element has a second attachment portion that has a second projection and a second lid engagement surface that extends from the second projection, wherein when the flow control element and the lid are attached the second flow control engagement surface engages the second lid engagement surface, and wherein when the flow control element and the lid are attached the second projection engages the second projection receiving surface;wherein the flow control element has a valve receiving portion that receives the valve;further comprising:a second valve, wherein the flow control element has a second valve receiving portion that receives the second valve, wherein the attachment portion has a circular outer perimeter and wherein both the valve receiving portion and the second valve receiving portion are located within the outer perimeter of the attachment portion;a third valve, wherein the flow control element has a third valve receiving portion that receives the third valve;a fourth valve, wherein the flow control element has a fourth valve receiving portion that receives the fourth valve, wherein the second attachment portion has a circular outer perimeter and wherein both the third and fourth valve receiving portions are located within the outer perimeter of the second attachment portion;a cup body that is configured for releasable attachment to the lid, wherein the cup body has a longitudinal axis that extends through the center of the cup body; anda medicine cup that is configured for releasable attachment to the flow control element, wherein the medicine cup has a longitudinal axis that extends through the center of the medicine cup, wherein when the medicine cup is attached to the flow control element and when the flow control element is attached to the lid the longitudinal axis of the cup body and the longitudinal axis of the medicine cup are coaxial. 7. A drinking cup, comprising: a lid having a receiving portion, wherein the receiving portion has a flow control engagement surface;a flow control element having an attachment portion, wherein the attachment portion has a lid engagement surface that has a concave shape, wherein the flow control element is configured for releasable attachment with the lid, wherein when the flow control element and the lid are attached the flow control engagement surface engages the lid engagement surface; anda valve carried by the flow control element;a valve retainer that engages both the valve and the flow control element and retains the valve to the flow control element, wherein the valve also separately engages the flow control element,wherein the lid engagement surface has a concave shape that has a perimeter, and wherein the valve is located within a footprint of the perimeter of the lid engagement surface that has the concave shape, wherein the concave shape of the lid engagement surface is oriented to face radially outward. 8. The drinking cup as set forth in claim 7, wherein the entire lid engagement surface has a concave shape. 9. The drinking cup as set forth in claim 7, wherein the flow control engagement surface has a convex shape that is complimentary to the concave shape of the lid engagement surface. 10. The drinking cup as set forth in claim 7, wherein the receiving portion of the lid has a projection receiving surface that extends from the flow control engagement surface, wherein the attachment portion of the flow control element has a projection that extends from the lid engagement surface, wherein when the flow control element and the lid are attached the projection engages the projection receiving surface. 11. The drinking cup as set forth in claim 10, wherein the lid has a dispensing opening and wherein the projection receiving surface is a step, wherein the projection receiving surface is located closer to the dispensing opening than the flow control engagement surface. 12. A drinking cup, comprising: a valve;a lid having a receiving portion, wherein the receiving portion has a flow control engagement surface; anda flow control element having an attachment portion, wherein the attachment portion has a lid engagement surface, wherein the flow control element is configured for releasable attachment with the lid, wherein when the flow control element and the lid are attached the flow control engagement surface engages the lid engagement surface, wherein one of the flow control engagement surface and the lid engagement surface has a concave shape that extends about a perimeter, wherein the valve is located within a footprint of the perimeter of the concave shape, and wherein the concave shape extends to a lower terminal end of the receiving portion;wherein the other one of the flow control engagement surface and the lid engagement surface has a convex shape that engages the counterpart concave shaped surface, wherein the convex and concave shaped surfaces extend gradually inward and outward in a radial direction upon their extension in a longitudinal direction of the drinking cup. 13. The drinking cup as set forth in claim 10, wherein the lid engagement surface is on an outer surface of the attachment portion and is concave in shape, wherein the flow control engagement surface is on an inner surface of the receiving portion and is convex in shape and has a shape complimentary to the concave shape of the lid engagement surface. 14. The drinking cup as set forth in claim 13, wherein the attachment portion has a projection that extends from the lid engagement surface, wherein the receiving portion has a projection receiving surface that extends from the flow control engagement surface, wherein when the flow control element and the lid are attached the projection engages the projection receiving surface, wherein the projection is located radially outwards from at least a majority of the lid engagement surface. 15. A drinking cup, comprising: a valve;a lid having a receiving portion, wherein the receiving portion has a flow control engagement surface; anda flow control element having an attachment portion wherein the attachment portion has a lid engagement surface, wherein the flow control element is configured for releasable attachment with the lid, wherein when the flow control element and the lid are attached the flow control engagement surface engages the lid engagement surface, wherein at least one of the flow control engagement surface and the lid engagement surface has a concave shape that extends about a perimeter, wherein the valve is located within a footprint of the perimeter of the concave shape, and wherein the concave shape extends to a lower terminal end of the receiving portion;wherein the lid engagement surface is on an outer surface of the attachment portion and is concave in shape, wherein the flow control engagement surface is on an inner surface of the receiving portion and is convex in shape and has a shape complimentary to the concave shape of the lid engagement surface;wherein the attachment portion has a projection that extends from the lid engagement surface, wherein the receiving portion has a projection receiving surface that extends from the flow control engagement surface, wherein when the flow control element and the lid are attached the projection engages the projection receiving surface, wherein the projection is located radially outwards from at least a majority of the lid engagement surface:wherein the projection receiving surface is a notch.
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