Apparatus and method for reducing water use

Valves and valve actuation – Fluid actuated or retarded – Pilot or servo type motor

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251 45, F16K 3112

Patent

active

061233153

ABSTRACT:
A fluid diaphram valve and interconnected pilot valve apparatus for control flow of fluid discharge from a pressurized fluid distribution system. The apparatus has a primary valve with an inlet adapted to receive fluid under pressure, and an outlet adapted to discharge fluid to an outlet conduit. A diaphram chamber is provided in the primary valve which is responsive to fluid pressure controlled by a pilot diaphram valve. Upon release of fluid pressure in the pilot diaphram valve, the primary valve allows passage of fluid to the outlet conduit. Bleed fluid from the pilot valve is also discharged into the outlet conduit and is thus saved for use. Upon closure of the pilot valve, a bleed port in the primary diaphram in the primary valve allows repressurization and seating of the primary diaphram, thus terminating fluid flow through the primary valve. A novel, retrograde motion actuator is also described for use in manual operation of the pilot valve from a fixed location such as cabinets below kitchen sinks.

REFERENCES:
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patent: 5230365 (1993-07-01), Woltz et al.
patent: 5263684 (1993-11-01), McGuire
patent: 5386600 (1995-02-01), Gilbert, Sr.

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