US PATENT SUBCLASS 366 / 176.3
.~.~ Piston pump


Current as of: June, 1999
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366 /   HD   AGITATING

150.1  DF  HAVING SPECIFIED FEED MEANS {16}
176.1  DF  .~ Pump forces material through restriction (e.g., static emulsifier) {2}
176.3.~.~ Piston pump {1}
176.4  DF  .~.~.~> Adjustable pressure regulator


DEFINITION

Classification: 366/176.3

Piston pump:

(under subclass 176.1) Subject matter wherein the pump includes a movable piston that forces the material to move.

SEE OR SEARCH THIS CLASS, SUBCLASS:

160.4, for a mixing apparatus having a piston pump for feeding material to a mixing chamber.