(under subclass 565.17) Subject matter including a pump and (a) a reservoir or a holding tank under atmospheric pressure usually at an elevation above the pump, and in open or check controlled communication with the pump outlet line to receive surplus fluid for storage or to absorb sudden rise of pressure, or (b) a parallel supply from a different line or from a container supplied from a source other than the pump.
SEE OR SEARCH CLASS
138, Pipes and Tubular Conduits,
26+, for a pressure compensator for a pipe or conduit.
222, Dispensing,
129+, for a dispenser having plural sources or supply containers.
417, Pumps,
540+, for an expansible chamber-type pump having a pulsation dampening fluid receiving space.