US PATENT SUBCLASS 251 / 129.01
ELECTRICALLY ACTUATED VALVE

Current as of: June, 1999
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251 /   HD   VALVES AND VALVE ACTUATION

129.01ELECTRICALLY ACTUATED VALVE {11}
129.02  DF  .~> With means to bias valve open
129.03  DF  .~> With nonelectrical actuator
129.04  DF  .~> Remote or follow-up control system for electrical actuator
129.05  DF  .~> Having means to produce digital pulses
129.06  DF  .~> Having element dimensionally responsive to field
129.07  DF  .~> Balanced valve
129.08  DF  .~> Having means to produce proportional flow
129.09  DF  .~> Solenoid having plural coils {1}
129.11  DF  .~> Rotary electric actuator {2}
129.14  DF  .~> Freely rotatable ball valve
129.15  DF  .~> Including solenoid {7}

DEFINITION

Classification: 251/129.01

ELECTRICALLY ACTUATED VALVE:

(under the class definition) Subject matter comprising means in the form of a valve actuator which uses electrical energy to change the position of a movable element, i.e., a valve, to regulate or control the flow of a fluent material through a passage or opening.

SEE OR SEARCH THIS CLASS, SUBCLASS:

30.01+, for electromagnetically operated pilot valves for servo-motors for valve actuation.

68+, for electric trip actuation, including resetting, of biased trip type valves.

SEE OR SEARCH CLASS

123, Internal-Combustion Engines,

90.11, for poppet valve operating mechanism which is electrically powered. 137, Fluid Handling,

65+, for solenoids controlling safety cut-off valves for oil burners, subclass 76 for heaters for destructible or fusible control elements, subclass 341 for fluid handling systems with electric heating elements, subclass 392 for liquid level control by electrical characteristic sensing, subclass 554 for electrical indicators for position or extent of motion or system parts, subclass 596.17 for electrically operated supply and exhaust valves, and subclass 625.65 for electrically operated supply and exhaust multiway valve units.

222, Dispensing,

333+, and 504 for motor operated discharge assistants and outlet elements.