US PATENT SUBCLASS 91 / 504
.~.~ Stroke control

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}
499  DF  .~ Cylinders parallel to rotation axis {6}
504.~.~ Stroke control {1}
505  DF  .~.~.~> By varying reaction plate inclination relative to cylinder axes {1}

DEFINITION

Classification: 91/504

(under subclass 499) Apparatus in which there is provided means to selectively vary the length of the reciprocating stroke between said cylinders and their respective relatively reciprocating pistons.

SEE OR SEARCH CLASS

92, Expansible Chamber Devices,

12.2, for displacement control of plural cylinders arranged in parallel relationship with a rotary transmission axis in which there is no valving of motive fluid claimed.

417, Pumps,

222.1+, for condition responsive adjustment of an axial pump operating cam.