Pilferproof closure with mechanical interlock

Details Pilferproof closure with mechanical interlock Pilferproof closure with mechanical interlock

1981-04-13

1982-08-17

Hall, George T.

Receptacles

Closures

Removable closure retained by ductile in situ deformation

220266, 220270, 220339, 222153, 222541, 215235, B65D 3900

Patent

active

043445454

ABSTRACT:
A closure for a container having a lever-openable plug wherein the lever is attached to other parts of the closure by a frangible member which must be broken to permit actuation of the lever to open the plug, thus indicating to a subsequent observer that either the closure had been open or an attempt had been made to do so. The attachment of said frangible member comprising a post on the plug extending into a socket on the frangible member and interlocked therewith.

REFERENCES:
patent: 3080088 (1963-03-01), Corrinet
patent: 3106311 (1963-10-01), Fairchild
patent: 3127064 (1964-03-01), Fairchild
patent: 3651992 (1972-03-01), Hazard
patent: 3998354 (1976-12-01), Song
patent: 3999678 (1976-12-01), Ignell et al.
patent: 4006839 (1977-02-01), Thiel et al.

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