US PATENT SUBCLASS 251 / 251
.~ Cam


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

213  DF  MECHANICAL MOVEMENT ACTUATOR {10}
251.~ Cam {3}
252  DF  .~.~> Co-axial or parallel axes {1}
257  DF  .~.~> Encased with seal {4}
262  DF  .~.~> Biased {1}


DEFINITION

Classification: 251/251

(under subclass 213) Subject matter wherein the mechanical movement actuator comprises an eccentrically mounted rotating or swinging member, the varying radii of which produce varying positions of the valve.

SEE OR SEARCH THIS CLASS, SUBCLASS:

213+, for movements consisting of a rotatable element provided with a helical rib or groove and another element co-acting therewith through a pin or the like, engaging said groove or rib.

SEE OR SEARCH CLASS

74, Machine Element or Mechanism, appropriate subclasses under mechanical movements, for cam type movements and

567+, for cams, per se.

137, Fluid Handling, 446, for float arm operated valves in which a cam is interposed in the connection between the float arm and the valve.