Bottles and jars – Closures – Frangible member or portion
Patent
1989-11-13
1991-04-23
Garbe, Stephen P.
Bottles and jars
Closures
Frangible member or portion
215341, 215343, 215354, 222545, 222546, 222570, B65D 4134
Patent
active
050093231
ABSTRACT:
A closure including a standard threaded cap having a tamper indicating band depending from the cap skirt by frangible webs. The tamper indicating band has an inwardly directed bead which cooperates with a flange on the container neck which allows the band to rotate with the cap but prevents the band from being removed past the container flange. Alternatively the tamper indicating band contains spaced ratchet teeth which engage ratchet teeth on the container neck to prevent further rotation. A rotary seal is provided between the cap and container neck which is effective for an axial length A greater than the sum of a distance B between the cap bead and the container flange when the cap is tightened or the axial movement of the cap in rotating the ratchet teeth into contact and the distance C which the frangible webs stretch before fracture. Thus the rotary seal prevents access to the product prior to breaking the tamper indicating band loose from the cap.
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Beck Terry E.
Montgomery Gary V.
Cronin Stephen K.
Garbe Stephen P.
Sunbeam Plastics Corporation
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