Safety valve with pressure indicator

Details Safety valve with pressure indicator Safety valve with pressure indicator

2005-05-03

2005-05-03

Chambers, A. Michael (Department: 3753)

Fluid handling

With indicator, register, recorder, alarm or inspection means

Fluid pressure responsive indicator, recorder or alarm

C137S383000, C137S596000, C137S625680

Reexamination Certificate

active

06886593

ABSTRACT:
A fluid control valve includes an adjustable soft start capability and pressure indicator device. The fluid control valve isolates an input port and connects an outlet port to an exhaust port when the fluid control valve is in its closed position. A system is provided for locking the fluid control valve in the closed position. The indicator device is used to provide an indication of the pressure within the outlet port to ensure safe operation.

REFERENCES:
patent: 5067519 (1991-11-01), Russell et al.
patent: 5699829 (1997-12-01), Weiler, Jr. et al.
L-O-X (Lock Out & eXhaust) VALVES Article, 2001.

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