Dispensing valve

Details Dispensing valve Dispensing valve

1975-04-01

1977-12-06

Weakley, Harold W.

Dispensing

Outlet element operated by pressure of contents

Spring form, resilient or compressible flow controller or...

222496, 222499, 137508, B65D 572

Patent

active

040612546

ABSTRACT:
A valve intended to open in response to a pressure difference between the interior of the valve and the exterior thereof comprises a diaphragm which in its closing position is conical. The diaphragm has an opening which is normally closed by means of a valve stem. Arrangements are made to prevent communication between the interior of the valve and the exterior thereof until said diaphragm has been deformed to a substantially planar shape.

REFERENCES:
patent: 2711271 (1955-06-01), Schlicksupp
patent: 3164164 (1965-01-01), Pall
patent: 3258029 (1966-06-01), Parrino
patent: 3472264 (1969-10-01), Petry
patent: 3583431 (1971-06-01), Diel
patent: 3587937 (1971-06-01), Childs
patent: 3826280 (1974-07-01), Perham

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