US PATENT SUBCLASS 417 / 570
.~.~.~ Distributor coextensive with pumping member end face

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}
569  DF  .~.~ Distributor positioned opposite pumping member end face {2}
570.~.~.~ Distributor coextensive with pumping member end face

DEFINITION

Classification: 417/570

(under subclass 569) Apparatus in which the movable portion of the valve or the movable portion of the valve which seats upon the nonmovable portion of the valve is substantially the same area as the end face of the pumping member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

501, for a coextensive distributor opposite a pumping member end face combined with a pumping member controlled inlet or discharge port.