US PATENT SUBCLASS 417 / 218
.~ Adjustable cam or linkage


Current as of: June, 1999
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417 /   HD   PUMPS

212  DF  CONDITION RESPONSIVE CONTROL OF DRIVE TRANSMISSION OR PUMP DISPLACEMENT {7}
218.~ Adjustable cam or linkage {3}
219  DF  .~.~> Radially adjustable stator {1}
221  DF  .~.~> Radial cam or eccentric
222.1  DF  .~.~> Axial cam {1}


DEFINITION

Classification: 417/218

(under subclass 212) Apparatus in which the pump is of the expansible chamber-type, i.e., having a relatively movable pumping member and chamber, and including a mechanical movement having relatively movable parts in which the driving relationship is varied by an adjustable element (e.g., cam, eccentric, link, etc.,) which is moved relative to another part.