US PATENT SUBCLASS 73 / 259
.~.~.~ With sliding vane

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

Internet Version by PATENTEC © 1999      Terms of Use


73 /   HD   MEASURING AND TESTING

861  DF  VOLUME OR RATE OF FLOW {23}
232  DF  .~ Expansible chamber {6}
253  DF  .~.~ Rotary piston or cylinder {5}
259.~.~.~ With sliding vane

DEFINITION

Classification: 73/259

(under subclass 253) Rotary piston meters wherein the piston is provided with one or more vanes which slidably project from the piston to engage the cylinder wall.

SEE OR SEARCH CLASS

418, Rotary Expansible Chamber Devices,

259+, for rotary expansible chamber devices having positively actuated vanes and subclass 270 for similar devices having movable vanes.