Pressure release tamper indicating feature for closure

Details Pressure release tamper indicating feature for closure Pressure release tamper indicating feature for closure

1982-11-29

1988-10-18

Marcus, Stephen

Bottles and jars

Closures

Frangible member or portion

116 70, 215237, 215262, 220231, 220271, 220367, 222153, 222541, B65D 5502

Patent

active

047780720

ABSTRACT:
This relates to a closure unit of the type including a closure member lockable in place having secured thereto a lever for effecting unlocking of the closure member. The closure unit has a tamper indicating feature in the form of a rivet projecting from the closure member and being received in a ring member releasably integrally formed with the lever. The rivet has been modified to have a blind hole opening through the underside of the closure member for presentation to the interior of an associated container whereby, should the rivet be severed from the closure member, the blind hole will open to the atmosphere and permit a venting under high pressure of the interior of the container.

REFERENCES:
patent: 4157765 (1979-06-01), Golebiewsky
patent: 4344545 (1982-08-01), Aschberger et al.
patent: 4398491 (1983-08-01), Fridl et al.
patent: 4407423 (1983-10-01), Walter

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