초록 ▼

A tamper evident spouted closure, contains a base (1) supporting a pivotally mounted spout (4). A tab (7) is integrally connected to a pair of frangible webs (6) and those webs are serially integrally connected to the distal end of said spout, the webs and tab extending from the spouts end. A tab se

A tamper evident spouted closure, contains a base (1) supporting a pivotally mounted spout (4). A tab (7) is integrally connected to a pair of frangible webs (6) and those webs are serially integrally connected to the distal end of said spout, the webs and tab extending from the spouts end. A tab seat (10) is integrally formed in the closure base and a weld permanently joins the tab to the seat. The frangible web thereby obstructs the initial movement to lift and open the spout. When the spout is pulled open, the frangible web easily breaks. The broken web serves as visual evidence that the spout was previously opened and then re-closed.

대표청구항 ▼

[ What is claimed is:] [1.] A tamper evident closure, comprising:a base for mounting to a container;a diaphragm integrally formed with and permanently mounted to said base;a pivotally moveable spout integrally formed with and permanently mounted to said diaphragm and base to define a unitary one-pie

[ What is claimed is:] [1.] A tamper evident closure, comprising:a base for mounting to a container;a diaphragm integrally formed with and permanently mounted to said base;a pivotally moveable spout integrally formed with and permanently mounted to said diaphragm and base to define a unitary one-piece closure, said spout containing a distal end and a proximal end, and said spout being pivotable relative said base between a first position closing a passage there through and a second position to open said passage;a tab;a frangible web integrally formed in an end of said tab;said frangible web connecting a first end of said tab to one of said base or said distal end of said spout, when said spout is initially in said first position;a tab seat formed in the other one of said base or said distal end of said spout; anda joint permanently attaching said tab to said tab seat to define a visible mechanical strap between said distal end of said spout and said base, said strap appearing continuous;wherein to pivot said spout from said first position to said second position said frangible web must be broken to produce a discontinuity in said strap, whereby said discontinuity produces visible evidence that said spout has previously been placed in said second position.