US PATENT SUBCLASS 417 / 560
.~.~ Single unitary element forms inlet and discharge distributor


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

Internet Version by PATENTEC © 1999      Terms of Use



417 /   HD   PUMPS

437  DF  EXPANSIBLE CHAMBER TYPE {40}
559  DF  .~ Having pumping chamber pressure responsive distributor {8}
560.~.~ Single unitary element forms inlet and discharge distributor


DEFINITION

Classification: 417/560

(under subclass 559) Apparatus in which a single unitary movable valve member is so positioned relative to the conduits communicating with the chamber inlet and discharge as to form the sole means for controlling both the inlet of pump fluid into the chamber and the discharge of pump fluid from the chamber.

SEE OR SEARCH THIS CLASS, SUBCLASS:

531, for a single element controlling both inlet and discharge of pump fluid to and from plural pump chambers.