US PATENT SUBCLASS 91 / 490
.~ Motive fluid supply or discharge through piston


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}
490.~ Motive fluid supply or discharge through piston


DEFINITION

Classification: 91/490

(under subclass 472) Apparatus in which there is provided passage means formed within at least one of said plural pistons and extending therethrough for the purpose of providing communication between the expansible chamber associated with said piston and a source of motive fluid supply or discharge.