Fire-fighting monitor with remote control

Details Fire-fighting monitor with remote control Fire-fighting monitor with remote control

2008-01-29

2008-01-29

Hepperle, Stephen M. (Department: 3753)

Fluid handling

Processes

With control of flow by a condition or characteristic of a...

C137S495000, C137S505280

Reexamination Certificate

active

10999789

ABSTRACT:
A pressure reducing valve for coupling to a pressurized water supply line includes a valve body with an inlet for coupling to the pressurized water supply line, an outlet, a passage extending between the inlet and the outlet, and a valve seat in the passage at or adjacent the inlet. A valve stem extends into the passage, which has a sealing member. An automatic pressure reducing system is provided for urging the sealing member toward the valve seat for throttling the valve to thereby reduce the pressure at the outlet. The valve also includes a manual system that is decoupled from the automatic pressure reducing system for manually urging the sealing member toward the valve seat for closing the valve.

REFERENCES:
patent: 1984792 (1934-12-01), Ford
patent: 3392749 (1968-07-01), Gneiding et al.
patent: 3692047 (1972-09-01), Camp
patent: 3946756 (1976-03-01), Specht
patent: 4008735 (1977-02-01), Thompson
patent: 4100933 (1978-07-01), Davey et al.
patent: 4276902 (1981-07-01), Roth
patent: 5358004 (1994-10-01), Atkinson et al.
patent: 5662139 (1997-09-01), Lish

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