초록 ▼

A tamper-evident container has a lid (14) that can be opened only by lifting and pulling a tab (18). Pulling of the tab breaks a breakable joint (41, 43, 70, FIG. 4) that connects the tab (18) to a hold-down (24) that is fixed to the lid, so when the tab is released from the hold-down the tab spring

A tamper-evident container has a lid (14) that can be opened only by lifting and pulling a tab (18). Pulling of the tab breaks a breakable joint (41, 43, 70, FIG. 4) that connects the tab (18) to a hold-down (24) that is fixed to the lid, so when the tab is released from the hold-down the tab springs up (FIG. 2) to an upward incline J to indicate that the container was opened.

대표청구항 ▼

1. A container for providing evidence of tampering, comprising: a base;a lid having a two component pull-tab assembly, said lid engageable with the base, said lid comprising an outer lid rim and a inner removable lid cover, said inner removable lid cover having a lockdown recess, and said two compon

1. A container for providing evidence of tampering, comprising: a base;a lid having a two component pull-tab assembly, said lid engageable with the base, said lid comprising an outer lid rim and a inner removable lid cover, said inner removable lid cover having a lockdown recess, and said two component pull-tab assembly connected to the outer lid rim;wherein said two component pull-tab assembly comprises an outer frangible pull-tab, and an inner hold-down tab;wherein the outer frangible pull-tab and the inner hold-down tab define a channel between the outer frangible pull-tab and the inner hold-down tab;wherein there is at least one frangible connection joint in the channel connecting the outer frangible pull-tab and the inner hold-down tab;wherein the outer frangible pull-tab further comprises a first rear connecting joint that defines a first terminus of the channel, and a second rear connecting joint that defines a second terminus of the channel;wherein the first rear connecting joint and the second rear connecting joint have a foldable hinge, and wherein the first rear connecting joint and the second rear connecting joint are connected to the outer lid rim; and,wherein the foldable hinge comprises at least one bend, wherein the bend positions the outer frangible pull-tab into a steep upward incline when the frangible connection joint in the channel is broken,whereby the upwardly inclined outer frangible pull-tab provides a user with visual evidence of tampering. 2. The container described in claim 1 wherein: said lid has a seal wall that presses against a base perimeter wall with an interference fit adjacent to a horizontal wall to support a nesting wall. 3. The container described in claim 1, wherein: said container is of rectangular shape with said base and lid each having four sides that form four corners; said two-component pull-tab assembly lies in one of said corners of said lid. 4. The container described in claim 1, wherein: said container is of rectangular shape with said base and lid each having four sides that fork four corners; a mechanical lock lying between each pair of said corners, each mechanical lock including a lid sidewall and container sidewall that hold the lid and container together. 5. The container of claim 1 wherein the lid has a stacking surface having a stacking recess and the two-component pull-tab assembly is configured to fit in the stacking recess. 6. The container of claim 1 wherein the bend comprises three bends, a first bend, a second bend, and a third bend, the first and third bends are in a closed resiliency and the second bend is in an open resiliency in a stowed position. 7. The container of claim 1 wherein the lid and the two-component pull-tab assembly are formed from the same thickness of plastic sheet by thermoforming and the bend is a set of bends of the plastic sheet. 8. The container of claim 1 wherein the base comprises a base rim, said base rim having an outside perimeter wall. 9. The container of claim 1, wherein the container is round. 10. The container of claim 1, wherein the container is rectangular. 11. The container of claim 1, wherein the container is formed from a plastic sheet. 12. The container of claim 1, wherein the lid is formed from a plastic sheet. 13. The container of claim 1, wherein the container is a hinged container. 14. The container of claim 1, wherein the container is unhinged where the lid is separate from the base. 15. The container of claim 8, wherein the two-component pull tab assembly is within the circumference of the outside perimeter wall of the base. 16. The container of claim 1, where in the foldable hinge is confined within the vertical limit wall of the base in a stowed position. 17. A container for providing evidence of tampering, comprising: a base:a lid having a two component pull-tab assembly, said lid engageable with the base, said lid comprising an outer lid rim and a inner removable lid cover, said inner removable lid cover having a lockdown recess, and said two component pull-tab assembly connected to the outer lid rim:wherein said two component pull-tab assembly comprises an outer frangible pull-tab, and an inner hold-down tab:wherein the outer frangible pull-tab and the inner hold-down tab define a channel between the outer frangible pull-tab and the inner hold-down tab:wherein there is at least one frangible connection joint in the channel connecting the outer frangible pull-tab and the inner hold-down tab:wherein the outer frangible pull-tab further comprises a first rear connecting joint that defines a first terminus of the channel, and a second rear connecting joint that defined a second terminus of the channel:wherein the first rear connecting joint and the second rear connecting joint have a foldable hinge, and wherein the first rear connecting joint and the second rear connecting joint are connected to the outer lid rim: andwherein the foldable hinge comprises at least one bend, wherein the bend positions the outer frangible pull-tab into a steep upward incline when the frangible connection joint in the channel is broken,whereby the upwardly inclined outer frangible pull-tab provides a user with visual evidence of tampering,wherein:said base has a rim, said base rim has a vertically-extending limit wall, an overhang wall joined to a top of said limit wall by a first inside corner and extending forward of said limit wall, and a primarily horizontally-extending base wall extending forward to said limit wall and joined to said limit wall by an inside corner; and said lid has a nesting wall that lies on a horizontally-extending base wall and said lid has a skirt that extends at an upward and rearward incline and that has a skirt top that lies at said first inside corner. 18. A container for providing evidence of tampering. comprising: a base:a lid having a two component pull-tab assembly. said lid engageable with the base, said lid comprising an outer lid rim and a inner removable lid cover, said inner removable lid cover having a lockdown recess. and said two component pull-tab assembly connected to the outer lid rim: wherein said two component pull-tab assembly comprises an outer frangible pull-tab, and an inner hold-down tab:wherein the outer frangible pull-tab and the inner hold-down tab define a channel between the outer frangible pull-tab and the inner hold-down tab:wherein there is at least one frangible connection joint in the channel connecting the outer frangible pull-tab and the inner hold-down tab:wherein the outer frangible pull-tab further comprises a first rear connecting joint that defines a first terminus of the channel. and a second rear connecting joint that defines a second terminus of the channel:wherein the first rear connecting joint and the second rear connecting joint have a foldable hinge, and wherein the first rear connecting joint and the second rear connecting joint are connected to the outer lid rim: and,wherein the foldable hinge comprises at least one bend, wherein the bend positions the outer frangible pull-tab into a steep upward incline when the frangible connection joint in the channel is broken,whereby the upwardly inclined outer frangible pull-tab provides a user with visual evidence of tampering,wherein the lid has a seal wall that presses against a perimeter seal wall of the base with an interference fit, and below the perimeter seal wall is a horizontal wall upon which is a horizontal lid supporting wall.