US PATENT SUBCLASS 91 / 346
.~.~ Spring biased

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

218  DF  CYCLICALLY OPERABLE {34}
344  DF  .~ Biasing means moves distributor after predetermined travel (i.e., snap action) {2}
346.~.~ Spring biased {1}
347  DF  .~.~.~> Coil spring moves laterally relative to coil axis

DEFINITION

Classification: 91/346

(under subclass 344) Apparatus in which the kinetic energy storing means comprises a spring.

(1) Note. Fluid operated biasing means are considered as springs for the purposes of this definition only when biased by a fluid which is independent of the motive fluid supply for the expansible chamber motor.