US PATENT SUBCLASS 91 / 179
.~.~ Oscillating valve

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

170 R  DF  RELATIVELY MOVABLE WORKING MEMBERS WITH ONE HAVING MOTIVE FLUID CONTROLLED BY, MOVABLY INTERCONNECTED WITH OR MOVED BY ANOTHER {12}
178  DF  .~ Single valve unit controlling plural working chambers {2}
179.~.~ Oscillating valve

DEFINITION

Classification: 91/179

(under subclass 178) Apparatus in which the valve member and housing are mounted for relative rotary motion which is limited to not more than 360 degrees.

SEE OR SEARCH THIS CLASS, SUBCLASS:

176, for oscillating distributor valves having at least one port on an oscillating cylinder.

211+, for oscillating valves formed in oscillating cylinders.