US PATENT SUBCLASS 417 / 199.2
.~ Priming and venting

Current as of: June, 1999
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417 /   HD   PUMPS

199.1  DF  DIVERSE PUMPS {5}
199.2.~ Priming and venting

DEFINITION

Classification: 417/199.2

Priming and venting:

(under subclass 199.1) Apparatus wherein one of the pumps supplies fluid to the pumping chamber of the main pump which is supplied with a valve to exhaust the fluid from the pumping chamber.