Valves and valve actuation – Reciprocating valve – Push or pull operator
Patent
1988-06-03
1989-07-04
Walton, George L.
Valves and valve actuation
Reciprocating valve
Push or pull operator
251333, 251900, F16K 2500, F16K 3144
Patent
active
048444146
ABSTRACT:
Valve assemblies having valve seats and/or valve members with conical surfaces which cause an included O-ring to roll upon and wedge between the valve member and the seat for reliably closing the valve.
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The Johnson Corporation, Bulletin VB-1001, "Vacuum Breakers", 6-12-84.
The Johnson Corporation, private communication including letter dated 1/3/85 and drawing dated 6/23/82.
pp. 6-25 and 6-26 of Parker Handbook.
Church Henry
Graboff Roy
Maldarelli Lawrence V.
Sable Chester A.
Anthony Industries, Inc.
Walton George L.
Weiss David
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