US PATENT SUBCLASS 417 / 541
.~.~ Space formed on pumping member

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}
540  DF  .~ Having pulsation dampening fluid receiving space {3}
541.~.~ Space formed on pumping member

DEFINITION

Classification: 417/541

(under subclass 540) Apparatus in which the fluid confining means is fixed to the pumping member for movement therewith.