Multi-valve interlock apparatus

Details Multi-valve interlock apparatus Multi-valve interlock apparatus

1978-08-28

1981-01-20

Schwadron, Martin P.

Liquid purification or separation

Structural installation

Closed circulating system

74483K, 123196A, 1376371, 210340, F16K 3514, B01D 2700

Patent

active

042461154

ABSTRACT:
An interlock is disclosed for permitting only one of a plurality of interrelated valve elements to be operated at one time. A transverse channel is formed in each valve element for alignment with a channel formed in the valve housing when the valve elements are moved to their respective opened positions. When any one valve element is moved to its closed position, camming surfaces formed on the valve element are positioned and shaped to cause a train of end abutting links disposed within the valve and housing channels to be displaced in a manner to lock the remaining valves in their respective open positions. The valve channels and camming surfaces are formed by very simple and inexpensive linear cutting operations thereby allowing the disclosed device to be inexpensively manufactured.

REFERENCES:
patent: 2185061 (1939-12-01), Meyers
patent: 2463737 (1949-03-01), Berck
patent: 3982520 (1976-09-01), Wheeler

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