Flow responsive closure device

Details Flow responsive closure device Flow responsive closure device

1982-01-11

1983-09-06

Scherbel, David A.

Dispensing

Outlet element operated by pressure of contents

Axially slidable tube, sleeve, or apertured cap

222497, B65D 572, B65D 3546

Patent

active

044024347

ABSTRACT:
An automatic closure device for containers being openable by pressure on the container and closable when such pressure is released. A cap member having a discharge orifice adapted to be closed by a plug member on a hollow stem is provided. The hollow stem has a discharge port. A diaphragm is positioned on said stem extending out to said cap, and a seal member having an aperture defined therein for receipt of said stem is positioned within said cap forming a pressure chamber between it and the diaphragm. Above the diaphragm which is resilient and movable downwardly by pressure is a discharge chamber. A lock is provided to also lock the plug in an open or in a closed mode.

REFERENCES:
patent: 1621097 (1927-03-01), Zammataro

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