Squeezable closures. Container systems, closure systems, and methods that include such closures.

An improved snap-on/twist off closure which is very durable. The invention is also directed to a package comprising the closure, e.g., a bottle in combination with the closure. The closure includes an upper wall defining an opening and a cylindrical snap on pipe depending from the upper wall. The pipe includes threads designed to mate with external threads on a neck of the bottle. The threads on the pipe and threads on the neck of the bottle pass over each other when the closure is snapped onto the bottle during manufacture. The pipe includes a resistance recess and a guidance recess. The resistance recess and the guidance recess accommodate a forcing element on a shoulder of the bottle and permit unscrewing of the closure

A bayonet connection structure between a container mouth portion and a cap is disclosed. The cap includes multiple slip prevention claws spaced apart from each other. One of the slip prevention claws is elastically displaceable in a radial direction. A rotation prevention projection is provided between the elastically-displaceable slip prevention claw and the other slip prevention claws. The mouth portion has a hollow cylindrical portion with an outer circumferential surface provided with multiple slip prevention claw (SPC) engagement portions for the slip prevention claws. The SPC engagement portions are as many as the slip prevention claws. Each of the SPC engagement portions has an end in a clockwise direction provided with a rotation prevention stopper. The mouth portion includes a rotation prevention rib to be got over by the rotation prevention projection of the cap when the cap is rotated.

A screw cap lidded container for laboratory use includes a container body defining a chamber, a tubular section of the container body that is connected at the rear to the chamber and has a container opening in the front and an external thread on the outer periphery of the tubular section. There is a circumferential first sealing surface on the tubular section and at least one first projection, which projects from the container body at a peripheral position of the tubular section, and a screw cap having an internal thread on the inner periphery that can be screwed onto the external thread with thread play, a second sealing surface on the screw cap can be brought into sealing contact with the first sealing surface, and at least one second projection, which projects at a peripheral position of the screw cap.

A container assembly including a container and a metallic closure. The container includes a polymeric body and a polymeric finish. The polymeric finish includes a plurality of threads. A lug lock is associated with each one of the plurality of threads. The metallic closure includes at least three metallic lugs configured to cooperate with the plurality of threads to couple the metallic closure to the polymeric finish.

Screw cap, loading piston, and method for aligning the screw cap and the loading piston in relation to each other and a method for screwing a screw cap onto a threaded neck portion of a packaging container. The screw cap can include a base portion having a top and a bottom surface, an annular portion raised from the base portion, the annular portion having an inner and an outer surface, and at least one first threaded portion arranged on the inner surface of the annular portion, wherein the base portion can include engagement means, such that the screw cap can engage a tool with at least one complementary engagement means in a process of screwing the cap onto the container with the complementary threaded neck portion.

A stackable container, including a body and a cap threadingly engageable with a neck portion of the body and having a vaulted interior and a top portion formed with a frustrum-shaped depression for snap-registered engagement with a base portion of a counterpart of the body, the cap further including handle projections and a skirt. Opposite stop structures prevent rotation of the cap relative to the body beyond predetermined threaded engagement; a detent releasably captures the body in the predetermined threaded engagement. A base portion of the body having inclined side walls facilitates rotation of the body with respect to the cap. The skirt guides the body into alignment with the cap. The base can have four of the side walls forming a square, the containers of a stack having any of four relative orientations. A consumable product such as a cosmetic can extend into the cap from the body.

Disclosed is a test barrel, to prevent a test liquid in the barrel from sputtering into a connection gap due to shaking of the barrel to hence cause contamination, improve the measurement accuracy in case of multiple tests, and meanwhile improve the operability of screwing on and screwing off the entire device during use of the device. The above technical objective of this utility model is implemented by employing the following technical solution: a test barrel, comprising barrel lid and a barrel body; wherein the threaded rings are arranged on an inner wall of a side face of the barrel lid and an outer wall of an opening of the barrel body, a rotary force applying portion is arranged on an outer wall of the side face of the barrel lid, and during engagement, a liquid blocking washer is arranged between the barrel lid and the barrel body, wherein a radial width of the liquid blocking washer is greater than a thickness of the opening of the barrel body.

Adhesive compositions that replace gaskets and liners in sealing applications for packages that are detachable with hand force are described. The adhesive compositions are particularly useful in preventing leaks and spillage during storage and transport of its packaged contents.

Adhesive compositions that replace gaskets and liners in sealing applications for packages that are detachable with hand force are described. The adhesive compositions are particularly useful in preventing leaks and spillage during storage and transport of its packaged contents.