US PATENT SUBCLASS 91 / 489
.~.~ Valved

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


91 /   HD   MOTORS: EXPANSIBLE CHAMBER TYPE

472  DF  THREE OR MORE CYLINDERS ARRANGED IN PARALLEL RADIAL OR CONICAL RELATIONSHIP WITH ROTARY TRANSMISSION AXIS {10}
486  DF  .~ Motive fluid bypass to or from assembly {3}
489.~.~ Valved

DEFINITION

Classification: 91/489

(under subclass 486) Apparatus in which there is provided valve means in addition to that controlling motive fluid admission or discharge to or from said plural working chambers for controlling the flow of motive fluid to or from said motor assembly.