US PATENT SUBCLASS 166 / 332.2
.~.~ Having rotational movement

Current as of: June, 1999
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166 /   HD   WELLS

316  DF  VALVES, CLOSURES OR CHANGEABLE RESTRICTORS {5}
332.1  DF  .~ Longitudinally movable operator {8}
332.2.~.~ Having rotational movement {1}
332.3  DF  .~.~.~> Ball valve type

DEFINITION

Classification: 166/332.2

Having rotational movement:

(under subclass 332.1) Longitudinally moveable operator wherein the axial shifting of the operator causes the flow regulating device to turn.

SEE OR SEARCH THIS CLASS, SUBCLASS:

330+, for rotated operators wherein the operator extends to the surface and is rotated from the surface.