US PATENT SUBCLASS 60 / 520
.~.~ Having free floating displacer or transfer piston

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

Internet Version by PATENTEC © 1999      Terms of Use


60 /   HD   POWER PLANTS

516  DF  MOTOR OPERATED BY EXPANSION AND/OR CONTRACTION OF A UNIT OF MASS OF MOTIVATING MEDIUM {3}
517  DF  .~ Unit of mass is a gas which is heated or cooled in one of a plurality of constantly communicating expansible chambers and freely transferable therebetween {9}
520.~.~ Having free floating displacer or transfer piston

DEFINITION

Classification: 60/520

(under subclass 517) Apparatus wherein at least one of said expansible chambers is provided with a piston which is freely movable therein, and without connection to any other means, having the function to cause the working medium to flow from that chamber to another of the expansible chambers.