Safety valve assembly for controlling clutch and brake in power

Details Safety valve assembly for controlling clutch and brake in power Safety valve assembly for controlling clutch and brake in power

1979-10-09

1983-03-01

Michalsky, Gerald A.

Fluid handling

Systems

Supply and exhaust

91424, 137596, 13759618, F15B 13043

Patent

active

RE0311618

ABSTRACT:
A valve assembly for a pressurized fluid line controlling a clutch and brake made up of a pair of valves having movable valve members with separate actuators, each of the valve members having inlet ports and outlet ports, the inlet ports being connected in series and the outlet ports being connected effectively in parallel so that both valves must be activated to pass the pressurized fluid to the control line and so that upon unwanted sticking of one of the valve members in activated position, pressure fluid to the control line is cut off and exhaust fluid from the line is promptly and directly vented.

REFERENCES:
patent: 3043335 (1962-07-01), Hunt
patent: 3265089 (1966-08-01), Nill
patent: 3280951 (1966-10-01), Jordan
patent: 3603348 (1971-09-01), Wright
Maschinenbautechnik 14 (1965), Heft 6, pp. 300-302.

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