A container that is a cup portion having a maximum gauge of less than 35 mils provided with a bottom panel, a sidewall and a sealing brim which defines an annular cup sealing surface; and a lid having a maximum gauge of less than 35 mils with a sealing rim defining an annular lid sealing surface; wh
A container that is a cup portion having a maximum gauge of less than 35 mils provided with a bottom panel, a sidewall and a sealing brim which defines an annular cup sealing surface; and a lid having a maximum gauge of less than 35 mils with a sealing rim defining an annular lid sealing surface; wherein the cup portion and lid portion are thermoformed such that the annular cup sealing surface and the annular lid sealing surface cooperate to form a seal extending around the assembled container and wherein the container does not leak when tested using the Leak Test Method 1.
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1. A container comprising: a cup portion having a maximum gauge of less than 35 mils, the cup portion comprising a bottom panel, a sidewall, and a sealing brim defining an annular cup sealing surface;a lid having a maximum gauge of less than 35 mils, the lid comprising a sealing rim defining an annu
1. A container comprising: a cup portion having a maximum gauge of less than 35 mils, the cup portion comprising a bottom panel, a sidewall, and a sealing brim defining an annular cup sealing surface;a lid having a maximum gauge of less than 35 mils, the lid comprising a sealing rim defining an annular lid sealing surface; anda hinge portion integrally formed with and connecting the cup portion and the lid, the hinge portion comprising a coined region extending longitudinally along an axis of rotation of the hinge portion and a cut-away portion disposed along the axis of rotation of the hinge portion;wherein the cup portion, the lid, and the hinge portion are thermoformed from proximate areas of a thermoplastic sheet stock, and wherein the annular cup sealing surface and the annular lid sealing surface are configured to cooperate to form a seal therebetween extending around the container upon assembly. 2. The container according to claim 1, wherein the hinge portion has an arched profile disposed on a compression side of the hinge portion. 3. The container according to claim 1, wherein the cup portion and the lid are formed from a microwaveable material. 4. The container according to claim 1, wherein the cup portion and the lid are formed from nucleated polypropylene. 5. The container according to claim 1, wherein the seal is a surface-to-surface interference-fit seal extending around the assembled container. 6. The container according to claim 1, wherein a capping force of the container as measured by a Capping Force Test Method is at least 0.4 lbs/lineal inch. 7. The container according to claim 1, wherein a capping force of the container as measured by a Capping Force Test Method is less than 1.0 lbs/lineal inch. 8. The container according to claim 1, wherein the container does not leak when tested using a Leak Test Method 1. 9. The container according to claim 1, wherein the cup portion has a generally circular cross-section and a frusto-conical shape. 10. The container according to claim 1, wherein the cup portion has a rectangular cross-section and a frusto-pyramidal shape. 11. The container according to claim 10, wherein the cup portion comprises chamfered corners having a thickness greater than adjacent areas of the cup portion. 12. The container according to claim 11, wherein the corners are chamfered at an external angle of from 30° to 60°. 13. The container according to claim 1, wherein the cup portion has an interior volume of from 2 oz. to 30 oz. 14. The container according to claim 1, wherein the container exhibits a Capping Force of up to 4 lbs./lineal inch of seal perimeter. 15. The container according to claim 1, wherein the container exhibits a Crush Force/Capping Force ratio of from 4 to 1.75. 16. A method of making a container comprising the steps of: providing a thermoforming mold comprising a first cavity for forming a cup portion of the container and a second cavity for forming a mating lid of the container, the second cavity disposed in proximity to the first cavity, the first cavity shaped to form the cup portion comprising a bottom panel, a sidewall, and a sealing brim defining an annular cup sealing surface, the second cavity shaped to form the lid comprising a sealing rim defining an annular lid sealing surface;feeding thermoplastic sheet stock having a maximum gauge of less than 35 mils to the mold;concurrently thermoforming the cup portion and the lid in the mold in proximity to one another from proximate areas of the thermoplastic sheet stock such that the cup portion is connected to the lid by a hinge portion, wherein the thermoforming is controlled, the sheet stock is selected, and the first cavity and the second cavity are shaped such that upon assembly of the container the annular cup sealing surface and the annular lid sealing surface cooperate to form a seal extending around the container;coining the hinge portion such that the hinge portion comprises a coined region extending longitudinally along an axis of rotation of the hinge portion; andremoving material from the hinge portion such that the hinge portion comprises a cut-away portion disposed along the axis of rotation of the hinge portion. 17. The method of making a container according to claim 16, wherein the seal is a surface-to-surface interference-fit seal extending around the assembled container. 18. A thermoformed sealable container comprising: a cup portion comprising a sidewall, a bottom, and a sealing brim defining an interior volume, the sealing brim having a U-shaped profile;a lid comprising a sealing rim having a U-shaped profile; anda hinge portion integrally formed with and connecting the cup portion and the lid, the hinge portion comprising a coined region extending longitudinally along an axis of rotation of the hinge portion and a cut-away portion disposed along the axis of rotation of the hinge portion;wherein the cup portion, the lid, and the hinge portion are thermoformed from proximate areas of a thermoplastic sheet stock, and wherein the sealing brim of the cup portion and the sealing rim of the lid are configured to cooperate to form a seal therebetween along an interior wall of the sealing brim of the cup portion and to define a clearance therebetween along an exterior wall of the sealing brim of the cup portion upon assembly to the container. 19. The thermoformed sealable container according to claim 18, wherein the seal is an interference-fit seal, and wherein the sealing brim of the cup portion and the sealing rim of the lid are otherwise non-interfering upon assembly of the container. 20. The thermoformed sealable container according to claim 19, wherein the interference-fit seal has from about 15 mils to about 50 mils of interference. 21. The thermoformed sealable container according to claim 19, wherein the interference-fit seal extends over an interference band width of from about 10 mils to 75 mils. 22. The thermoformed sealable container according to claim 18, wherein the U-shaped profile of the sealing rim comprises at least one chamfered lip. 23. The thermoformed sealable container according to claim 22, wherein the chamfered lip has a chamfer angle of from 30° to 60°. 24. The thermoformed sealable container according to claim 22, wherein the chamfered lip has a chamfer length of from 5 mils to 25 mils. 25. The thermoformed sealable container according to claim 18, wherein the U-shaped profile of the sealing rim comprises two chamfered lips. 26. A thermoformed sealable container comprising: a cup portion comprising a sidewall, a bottom, and a sealing brim defining an interior volume;a lid comprising a sealing rim; anda hinge portion integrally formed with and connecting the cup portion and the lid, wherein the hinge portion has an arched hinge profile so that the hinge portion is substantially elastic and relatively pliant, and wherein the hinge portion is incapable of sustaining a hinge torque sufficient to tilt the cup portion when the cup portion is empty and disposed on a countertop. 27. The thermoformed sealable container according to claim 26, wherein the lid is configured to substantially freely rotate about the hinge portion. 28. The thermoformed sealable container according to claim 26, wherein the hinge portion comprises a cut-away portion. 29. The thermoformed sealable container according to claim 26, wherein the cup portion and the lid have a maximum gauge of less than 30 mils. 30. A thermoformed sealable container comprising: a cup portion comprising a sidewall, a bottom, and a sealing brim defining an interior volume;a lid comprising a sealing rim; anda hinge portion integrally formed with and connecting the cup portion and the lid, wherein the hinge portion has an arched hinge profile, and wherein a maximum moment the hinge portion is capable of sustaining is:less than mcrc, orless than mlwl2-hc22where mc is a mass of the cup portion, rc is a horizontal distance to a center of mass of the cup portion from the hinge portion, ml is a mass of the lid, wl is a length of the lid perpendicular to an axis of rotation of the hinge portion, and hc is a height of the hinge portion above a countertop upon which the cup portion rests. 31. The thermoformed sealable container according to claim 30, wherein the lid is configured to substantially freely rotate about the hinge portion. 32. The thermoformed sealable container according to claim 30, wherein the hinge portion comprises a coined region extending longitudinally along an axis of rotation of the hinged portion. 33. The thermoformed sealable container according to claim 30, wherein the hinge portion comprises a cut-away portion. 34. The thermoformed sealable container according to claim 30, wherein the cup portion and the lid have a maximum gauge of less than 30 mils. 35. A method of making a sealable container by thermoforming comprising: providing a thermoforming mold comprising a first cavity for forming a cup portion of the container and a second cavity for forming a mating lid of the container, the second cavity disposed in proximity to the first cavity, the first cavity shaped to form the cup portion comprising a sidewall, a bottom, and a sealing brim defining an interior volume, the second cavity shaped to form the lid comprising a sealing rim;feeding thermoplastic sheet stock having a maximum gauge of less than 35 mils to the mold;concurrently thermoforming the cup portion and the lid in the mold in proximity to one another from proximate areas of the thermoplastic sheet stock such that the lid is connected to the cup portion by a hinge portion; andcoining the hinged portion to provide an arched profile thereto so that the hinge portion is substantially elastic and relatively pliant, wherein the hinge portion is incapable of sustaining a hinge torque sufficient to tilt the cup portion when the cup portion is empty and disposed on a countertop. 36. The method of making a sealable container according to claim 35, wherein the step of coining the hinged portion is effective to at least partially orient a polymer of the hinge portion in a direction generally transverse to an axis of rotation of the hinge portion. 37. A lightweight, thermoformed sealable container comprising: a frusto-pyramidal cup portion having a maximum gauge of less than 35 mils, the cup portion comprising four sidewall panels, a bottom panel, four chamfered lower corner panels bridging the sidewall panels and the bottom panel, and a sealing brim defining an annular cup sealing surface;a lid having a maximum gauge of less than 35 mils, the lid comprising a sealing rim defining an annular lid sealing surface; anda hinge portion integrally formed with and connecting the cup portion and the lid, the hinge portion comprising a coined region extending longitudinally along an axis of rotation of the hinge portion and a cut-away portion disposed along the axis of rotation of the hinge portion;wherein the cup portion, the lid, and the hinge portion are thermoformed from proximate areas of a thermoplastic sheet stock, and wherein the annular cup sealing surface and the annular lid sealing surface are configured to cooperate to form a seal therebetween extending around the container upon assembly. 38. A packaged ensemble comprising: at least five sealable containers, each of the sealable containers comprising: a cup portion having a maximum gauge of less than 35 mils, the cup portion comprising a bottom panel, a sidewall, and a sealing brim defining an annular cup sealing surface;a mating lid having a maximum gauge of less than 35 mils, the lid comprising a sealing rim defining an annular lid sealing surface; anda hinge portion integrally formed with and connecting the cup portion and the lid, the hinge portion comprising a coined region extending longitudinally along an axis of rotation of the hinge portion and a cut-away portion disposed along the axis of rotation of the hinge portion;wherein the cup portion, the lid, and the hinge portion are thermoformed from proximate areas of a thermoplastic sheet stock, and wherein the annular cup sealing surfaces and the annular lid sealing surfaces are configured to cooperate to form seals therebetween extending around the containers upon assembly. 39. A lightweight, thermoformed sealable container comprising: a cup portion having a maximum gauge of less than 35 mils, the cup portion comprising a bottom panel, a sidewall, and a sealing brim defining an annular cup sealing surface; anda lid having a maximum gauge of less than 35 mils, the lid comprising a sealing rim defining an annular lid sealing surface;wherein the cup portion and the lid are thermoformed from proximate areas of a thermoplastic sheet stock, wherein the annular cup sealing surface and the annular lid sealing surface are configured to cooperate to form a seal therebetween extending around the container upon assembly, and wherein the container exhibits a Crush Force/Capping Force ratio of from 5 to 1.5, and a Capping Force of at least 0.4 lbs/lineal inch of seal perimeter.
Tucker Edward (Romeoville IL) Lueken George (Fort Wayne IN) Gross Luke (Churubusco IN) Cruz Mark (Fort Wayne IN) Melvan Jack F. (Oak Forest IL), Container for food.
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