Electrically-operated control valve and water distribution syste

Details Electrically-operated control valve and water distribution syste Electrically-operated control valve and water distribution syste

1994-05-31

1995-06-27

Schwadron, Martin P.

Valves and valve actuation

Fluid actuated or retarded

Pilot or servo type motor

251 31, 25112904, 25112912, 13762522, 13762523, F16K 3104, F16K 3146

Patent

active

054273501

ABSTRACT:
An electrically-operated control valve includes a rotor rotatably mounted to a first position connecting a fluid inlet port to a fluid outlet port, or a second position disconnecting the fluid inlet port from the fluid outlet port; a battery-operated electrical rotary motor for rotating the rotor; and limit switches for deenergizing the electrical motor when the rotor arrives in either the first or second positions. The electrical motor is coupled to the rotor by a speed-reducing, torque-increasing transmission such that very little electrical power is required to operate the motor, thereby enabling the control valve to be used as a remotely-controlled pilot valve for controlling a water irrigation system.

REFERENCES:
patent: 3865138 (1975-02-01), Jones
patent: 3921667 (1975-11-01), Corliss et al.
patent: 4023585 (1977-05-01), VandenBurg
patent: 4156437 (1979-05-01), Chivens et al.
patent: 4592505 (1986-06-01), Bruninga et al.
patent: 4790514 (1988-12-01), Marks
patent: 4794314 (1988-12-01), Janu et al.
patent: 4811221 (1989-03-01), Sturman et al.
patent: 4838310 (1989-06-01), Scott et al.
patent: 4852802 (1989-08-01), Iggulden et al.
patent: 4883823 (1989-11-01), Perry, Jr. et al.
patent: 5040569 (1990-08-01), Nogami et al.

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