Tamper-proof closure

Details Tamper-proof closure Tamper-proof closure

1981-05-07

1984-01-17

Norton, Donald F.

Bottles and jars

Closures

Frangible member or portion

B65D 4134

Patent

active

RE0314960

ABSTRACT:
A tamper-proof closure for a container having a member projecting from its neck, in which the closure is thermoformed with a skirt wall having a tab which engages the projecting member and which breaks off as the closure is unfastened from the container.

REFERENCES:
patent: 2104236 (1938-01-01), Mermer
patent: 2124873 (1938-07-01), Conner
patent: 2134178 (1938-10-01), Esposito
patent: 2162712 (1939-06-01), Hamberger
patent: 2168321 (1939-08-01), Burrell
patent: 2414420 (1947-01-01), Sebell
patent: 2423582 (1947-07-01), Coleman
patent: 2470057 (1949-05-01), Spender
patent: 2950832 (1960-08-01), Brune
patent: 3235115 (1966-02-01), Duke
patent: 3249247 (1966-05-01), Babiol
patent: 3455478 (1969-07-01), Fields
patent: 3482725 (1969-12-01), Exton
patent: 3504818 (1970-04-01), Crisci et al.
patent: 3606063 (1971-09-01), Childs et al.

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