US PATENT SUBCLASS 417 / 11
.~ By controlling free piston internal combustion engine


Current as of: June, 1999
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417 /   HD   PUMPS

1  DF  CONDITION RESPONSIVE CONTROL OF PUMP DRIVE MOTOR {22}
11.~ By controlling free piston internal combustion engine


DEFINITION

Classification: 417/11

(under subclass 1) Subject matter in which the drive motor is of the reciprocating expansible chamber type and derives its power by the burning of fuel in the chamber and in which the piston or working member of the motor is free of any mechanical linkage or gearing which limits its movement to a fixed stroke during its cycle of operation.