US PATENT SUBCLASS 60 / 496
.~ With means to vary buoyancy of working member

Current as of: June, 1999
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60 /   HD   POWER PLANTS

495  DF  MOTOR HAVING A BUOYANT WORKING MEMBER {2}
496.~ With means to vary buoyancy of working member

DEFINITION

Classification: 60/496

(under subclass 495) Apparatus wherein the working member may be actuated in a buoying fluid by either adding to or withdrawing a substance from the confines of said working member to change its specific gravity relative to the fluid.