US PATENT SUBCLASS 418 / 7
.~ Successive stages alternately produce work


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

5  DF  MULTISTAGE {7}
7.~ Successive stages alternately produce work


DEFINITION

Classification: 418/7

(under subclass 5) Apparatus in which a rotating working member in each working chamber includes means for permitting working fluid to flow substantially unimpeded therepast during a portion of a revolution thereof and for producing work during another portion of the revolution, a working member in one working chamber permitting unimpeded working fluid flow therepast while a working member in a prior or subsequent working chamber is in work producing relationship with the working fluid.