US PATENT SUBCLASS 166 / 332.1
.~ Longitudinally movable operator

Current as of: June, 1999
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166 /   HD   WELLS

316  DF  VALVES, CLOSURES OR CHANGEABLE RESTRICTORS {5}
332.1.~ Longitudinally movable operator {8}
332.2  DF  .~.~> Having rotational movement {1}
332.4  DF  .~.~> Operated by means inserted from the surface
332.5  DF  .~.~> Valving means inserted or retrieved to operate
332.6  DF  .~.~> Having a dump or discharge type means
332.7  DF  .~.~> Having equalizing valve
332.8  DF  .~.~> Flapper type
333.1  DF  .~.~> Contact with bore bottom
334.1  DF  .~.~> Vertical movement of conduit {3}

DEFINITION

Classification: 166/332.1

Longitudinally movable operator:

(under subclass 316) Valve, closure or changeable restrictor comprising an axially shiftable element operated from the surface of the well to control movement of a flow regulating device.

(1) Note. Fluid operated valves are not classifiable here, they belong in subclasses 319+.

SEE OR SEARCH THIS CLASS, SUBCLASS:

66.7, for electric longitudinal movable operator.