US PATENT SUBCLASS 137 / 866
.~.~.~ Threaded actuator

Current as of: June, 1999
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137 /   HD   FLUID HANDLING

561 R  DF  SYSTEMS {32}
861  DF  .~ With flow control means for branched passages {8}
862  DF  .~.~ With common valve operator {8}
866.~.~.~ Threaded actuator

DEFINITION

Classification: 137/866

Threaded actuator:

(under subclass 862) Systems wherein the means to coordinate the actuation of the flow control means includes a member having a helical rib, which member reciprocates as a result of rotary motion applied thereto.

SEE OR SEARCH CLASS

251, Valves and Valve Actuation,

248+, for gear-actuated valves, per se.