US PATENT SUBCLASS 418 / 260
.~ Cam actuated


Current as of: June, 1999
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418 /   HD   ROTARY EXPANSIBLE CHAMBER DEVICES

259  DF  POSITIVELY ACTUATED VANE {4}
260.~ Cam actuated {1}
261  DF  .~.~> In opposite directions {3}


DEFINITION

Classification: 418/260

(under subclass 259) Apparatus in which the vane is moved in at least one direction by coacting elements one of which has a surface or groove of irregular contour for controlling the movements of the other element and the vane associated therewith.

(1) Note. A circular surface is not considered to have an irregular contour and is not a cam under this definition.