US PATENT SUBCLASS 91 / 483
.~.~ By adjustment of transmission or reaction element

Current as of: June, 1999
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91 /   HD   MOTORS: EXPANSIBLE CHAMBER TYPE

472  DF  THREE OR MORE CYLINDERS ARRANGED IN PARALLEL RADIAL OR CONICAL RELATIONSHIP WITH ROTARY TRANSMISSION AXIS {10}
482  DF  .~ Means varies cyclic relation between reciprocating member and control valve therefor {1}
483.~.~ By adjustment of transmission or reaction element

DEFINITION

Classification: 91/483

(under subclass 482) Apparatus having a transmission or reaction element (e.g., swash-plate, crankshaft, etc.), which is mechanically connected (includes abutment type connection) to the cylinders or relatively reciprocating pistons and which is adapted to be selectively moved and held in different positions for the purpose of changing the time of occurrence of admission or discharge of fluid to or from at least one of said working chambers.