Tamper-evident seal for a toggle-type dispensing valve

Details Tamper-evident seal for a toggle-type dispensing valve Tamper-evident seal for a toggle-type dispensing valve

1986-08-18

1987-12-08

Bartuska, F. J.

Dispensing

With frangible closure for outlet

222511, B65D 4710

Patent

active

047113804

ABSTRACT:
A tear-off tab structure applicable to a self-closing dispensing valve structure of the toggle type mounted on a spout in which passage to the outlet is normally-closed by an axially inwardly-extending flexible wall structure that can be flexed by a toggle lever carried thereby to complete a discharge passage to the outlet. The tear-off tab structure substantially covers the outlet and to give access to the spout through the outlet the tab structure must be disturbed thereby giving evidence of tampering.

REFERENCES:
patent: 3278089 (1966-10-01), Heekin et al.
patent: 3400866 (1968-10-01), Fattori
patent: 3443728 (1969-05-01), Scholle
patent: 3493146 (1970-02-01), Conners et al.
patent: 3972452 (1976-08-01), Welsh
patent: 4169548 (1979-10-01), Bond
patent: 4386720 (1983-06-01), Speedie
patent: 4444340 (1984-04-01), Bond et al.
patent: 4478242 (1984-10-01), Bond

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