Receptacles – Closures – With closure opening arrangements for means
Patent
1979-11-07
1982-01-05
Goldberg, Howard N.
Receptacles
Closures
With closure opening arrangements for means
220288, 215253, 222541, B65D 4710
Patent
active
043089690
ABSTRACT:
A tamper indicating closure for a threaded pouring spout having an external ratchet surface disposed near the base of the pouring spout is provided with a pawl-like member cooperating with the ratchet surface and maintaining integrity during closing but rupturing upon opening to give a visual indication that the container has been opened.
REFERENCES:
patent: 4062466 (1977-12-01), Conti
patent: 4126240 (1978-11-01), Brach
patent: 4153174 (1979-05-01), Keeler
Heisler Jerome S.
Starr Anthony J.
Carpenter Richard W.
Chin Davis
Container Corporation of America
Goldberg Howard N.
Silverberg Fred A.
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