A tamper-evident container including: a container body having a first hollow convex loop on a periphery of an opening thereof; and a lid having a second hollow convex loop and a force application structure, where the second hollow convex loop is used to engage with the first hollow convex loop, and a loop-shaped breakable line is provided on a loop-shaped top surface of the second hollow convex loop; where, when an illegitimate user applies a lifting force on any local area of the second hollow convex loop of the lid to make the local area moving upward with a displacement exceeding a threshold, a corresponding local area of the loop-shaped breakable line will be broken to show that the tamper-evident container has been tampered with.

Provided is a resin container lid in which a trouble such as a crack is prevented while maintaining easiness in opening even under a refrigerating or freezing environment, the resin container lid configured to be fitted to and detached from a resin container, the resin container lid including a flange part configured to be fitted to a container, the flange part being formed at a peripheral edge of the resin container lid, and an opening tab for detachment from the container, the opening tab projecting into an outer periphery from the flange part, with the tab having a flexural strength of 50 to 80 N under an environment of −30° C.

A container has an upper edge, a lateral wall extending around the circumference of the container, and an opening closed by a lid. A latching rim proximate the upper edge latches with a corresponding latching rim on the lid. The latching rims of the container and the lid, respectively, extend at least partially around a circumference of the same. The container lateral wall includes a peripheral skirt having a sub-region extending radially outwardly from the lateral wall. The lid includes a lower lid rim on the outside of the container and at least one extension extending outside the lateral wall of the container. The extension extends below the lower rim of the lid and at least partially penetrates the skirt of the container. The extension and the container include corresponding fixing devices releasable independently of the latching devices formed by the latching rims of the container and the lid.

A tamper evident closure includes a first snap, a cover, a tear strip connected to the cover, and a second snap connected to the tear strip. In a closed position, a cavity of the cover is configured to be placed over the first snap, and the second snap is configured to be placed in and engaged with a cavity in the first snap. In a closed position, there is a gap between the first snap and the cover.

A plastic container includes a lid adapted for leak-proof sealing state with a base. Mating surfaces of the lid and base rims form one or more proximal seal zones when the lid rim and base rim are in an initially sealed state. Hinge-forming structure extends from a first hinge-joining section of the lid rim to a second hinge-joining section on the base rim. In the initially sealed state the first hinge-joining section superposes over all or part of the second hinge-joining section, the area at which the first hinge-joining-section superposes the second hinge-joining section defines an overlapping portion of the first and second hinge-joining sections. One or more vent channels are formed in either of the lid rim or base rim and located within the radially overlapping portion. The one or more channels form a complete discontinuity in the one or more proximal seal zones. Because the channels are within the overlapping portion, they are protected from tampering access.

A container is described comprising: a base comprising a mouth, a first edge obtained around the mouth and a second edge connected to the first edge by a lower wall; a cover capable of being closed again on the base, the cover comprising a base wall and an edge connected to the base wall and adapted to be assembled with interference on the first edge of the base; the lower wall further comprising a breaking line along which the separation of the second edge from the first edge and from the base is adapted to occur to allow opening the container providing evidence of the occurred opening, the first upper wall of the first edge having sizes greater than those of the opening of the edge, to assemble with interference the first edge of the base inside the edge of the cover when the cover is closed on the base.

A container system, including a base with a rim having a pair of protrusions on opposite sides of the base extending into the base; and a lid having a peripheral outer rim. The lid includes a pair of partial peripheral troughs positioned radially inward of the outer rim, ends of the partial peripheral troughs being spaced apart to form a pair of peripheral gaps on opposite sides of the lid to receive the pair of protrusions of the base to attach the lid to the base. The lid has a hinge about which the lid folds as a first part of the lid is lifted to provide access to the interior volume of the base while a second part of the lid on an opposite side of the hinge remains attached to the base.

A container includes a container portion and a lid portion. The container portion presents a tab rim and internal threads. The lid portion presents a plurality of flexible removable tabs disposed around its outer periphery. The tabs are adapted to engage with and interlock with the container tab rim when the lid portion is pressed down on the container. The lid portion also has helical threads that are arranged to engage the helical threads of the container portion. At least one of the set of helical threads of the container portion or the set of helical threads of the lid portion are able to flex when the lid portion is pressed down upon the container portion. A closed container may be adapted for repeated use by removing the tabs and using the threaded lid portion to open and close the container.

A tamper evident container includes a cover having a first interlocking flange with a first tab for opening and closing the container and a first extension joined to the first tab along a frangible score line, a base having a second interlocking flange with a second tab for opening and closing the container and a second extension joined to the second tab along a frangible score line, the first extension including one or more first interlocking elements and the second extension including one or more second interlocking elements, where the first and second interlocking elements, when securely fastened together, prevent access to the first and second tabs, and require more force to separate than to sever the first and second extensions along the frangible score lines.

A non-equal length open-identification container includes: a cover, one side of a top surface thereof extended with an elastic sheet having a predetermined extension length, and an end thereof having a first coupling element facing down; a box, one side of a top surface thereof horizontally extended with a flange having a notch, the flange projected with a stopping portion, and the cover adapted to be in combination with a top portion of the box, allowing a bottom surface of the sheet to be in contact with a top surface of the stopping portion; and a second coupling element, having a groove and in combination with the notch with a dotted broken line, the first coupling element offset from the groove after the cover is in combination with the box, the sheet pressed down, allowing the first coupling element to be in engagement with the groove.