US PATENT SUBCLASS 417 / 423.13
.~.~.~.~ With lubricator

Current as of: June, 1999
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417 /   HD   PUMPS

321  DF  MOTOR DRIVEN {32}
410.1  DF  .~ Electric or magnetic motor {10}
423.1  DF  .~.~ Rotary motor and rotary nonexpansible chamber pump {13}
423.12  DF  .~.~.~ Having bearing {1}
423.13.~.~.~.~ With lubricator

DEFINITION

Classification: 417/423.13

(under subclass 423.12) Apparatus wherein there is provided means to provide a fluid which is not the pumped fluid to reduce the friction in the bearing.

SEE OR SEARCH THIS CLASS, SUBCLASS:

366, for a means which provides pumped fluid to lubricate the bearing.