US PATENT SUBCLASS 91 / 51
.~ Motive fluid constantly applied to and vented from opposed chambers

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

47  DF  CONSTANTLY APPLIED MOTIVE FLUID WITH CONTROLLED VENTING {4}
51.~ Motive fluid constantly applied to and vented from opposed chambers

DEFINITION

Classification: 91/51

(under subclass 47) Apparatus in which the motor is provided

with opposed working chambers and a working member having opposed working faces, the motive fluid being continuously supplied to said opposed chambers and opposed working member faces the working member being movable in opposite direction by alternately venting said working chambers.