US PATENT SUBCLASS 91 / 373
.~.~.~.~ With lost motion between input and reaction member

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

358 R  DF  WORKING MEMBER POSITION FEEDBACK TO MOTIVE FLUID CONTROL {12}
368  DF  .~ Follower type {9}
370  DF  .~.~ With motor chamber pressure reaction on valve {2}
372  DF  .~.~.~ Spring-loaded valve {1}
373.~.~.~.~ With lost motion between input and reaction member

DEFINITION

Classification: 91/373

(under subclass 372) Apparatus in which movable parts of the input signal means and the means responsive to fluid pressure are operatively connected to transmit forces to each other during a portion of their operation and to move relative to each other without transmitting force during another portion of their operation.

(1) Note. Devices in which the signal and reaction parts move relative to each other because the reaction force is transmitted through relatively movable sequentially operable inlet and exhaust valves are excluded from this subclass unless there is additional means to permit lost motion between the parts.