US PATENT SUBCLASS 417 / 448
.~ Pump mounted in vertical tubular flow conduit removable as unit by driving rod manipulation

Current as of: June, 1999
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417 /   HD   PUMPS

437  DF  EXPANSIBLE CHAMBER TYPE {40}
448.~ Pump mounted in vertical tubular flow conduit removable as unit by driving rod manipulation {2}
449  DF  .~.~> Removable unit having piston normally fixed in conduit
450  DF  .~.~> With latching or anchoring means released by rod movement

DEFINITION

Classification: 417/448

(under subclass 437) Apparatus in which the pumping member is provided with an operating rod and the pump as a whole is mounted in a vertically disposed pipe or tube for conducting fluid and the pump and its mounting in the tube are so related that the whole pump is removable from the tube solely by manipulation of the operating rod.