.~ Pressure responsive distributor continuously biased open
DEFINITION
Classification: 417/447
(under subclass 437) Apparatus in which the means for controlling pump fluid to or from the pump chamber includes valve means of the type which normally opens or closes responsive to a pressure differential between the pump chamber and an inlet or discharge conduit for cyclically controlling pump fluid for the pumping operation and including means other than the pump fluid (e.g., spring, weight, float, etc.), for continuously exerting a force on said valve in the valve opening direction.
