초록 ▼

A container is provided with a lid which is releasably secured to it by means of interlocking beads and respectively on the container and a depending skirt of the lid. An annular flange which abuts and is flush with the skirt of the lid serves as a protecting member to make it difficult for the lid

A container is provided with a lid which is releasably secured to it by means of interlocking beads and respectively on the container and a depending skirt of the lid. An annular flange which abuts and is flush with the skirt of the lid serves as a protecting member to make it difficult for the lid to be removed without making use of a tamper-evident facility provided on the upper surface of the lid. This facility consists of a pull ring integrally moulded with the lid and firmly attached to it adjacent the periphery of the lid. In its inactive position, prior to the first removal of the lid from the container, it is held by a number of frangible connection points in a recess provided in the lid. In order to remove the lid from the container, it is necessary to grip the pull ring and pull it upwards thereby breaking the connection points and providing a subsequent indication that the lid has been removed.

대표청구항 ▼

A tamper-evident lid for a container, the lid being molded as a one piece structure from plastic material and having, as integral parts thereof, a closure element, a securing arm and a release element having a tamper evident facility, the securing element being so arranged that the lid is removable

A tamper-evident lid for a container, the lid being molded as a one piece structure from plastic material and having, as integral parts thereof, a closure element, a securing arm and a release element having a tamper evident facility, the securing element being so arranged that the lid is removable only by using the release element to pull the lid from the container, wherein the closure element includes a recess defined on an upper surface thereof, the recess having an inner peripheral wall, the integral release element being secured in an inactive or stowed position in the recess by integrally molded frangible means so that the integral release element is surrounded by said inner peripheral wall and is located in the recess below the level of the upper surface of the closure element, the frangible means being of such a strength, in relation to that of the securing element, that pulling the release element sufficiently hard so as to pull the lid from the container will cause the release element to move out of the recess into an active position, and in so doing break off the frangible means thus providing a tamper evident facility, the release element then being usable to release the securing means and pull the lid from the container, the upper surface of the lid being unbroken by movement of the release element to the active position whereby the lid, once the frangible means have been broken, is reusable as a sealing lid for the container.