US PATENT SUBCLASS 417 / 504
.~ Plural outlet paths to single discharge line acting under different conditions


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



417 /   HD   PUMPS

437  DF  EXPANSIBLE CHAMBER TYPE {40}
504.~ Plural outlet paths to single discharge line acting under different conditions


DEFINITION

Classification: 417/504

(under subclass 437) Apparatus including a plurality of outlet valves or a plurality of different outlet flow paths controlled by a single valve element for a single expansible chamber, said outlet valves or flow paths discharging to a common outlet line and being designed to open in response to different conditions in the expansible chamber.

(1) Note. Ordinarily one of the valves is a distributor and another is one which opens only in response to excess pressure, e.g., when a slug of water accumulates in an air compressor. The distributor may be pressure responsive or mechanically actuated. In a mechanically actuated distributor the condition is the position of the pumping member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

307+, for a pressure operated relief or bypass which vents fluid to waste or back to supply.

502, for an expansible chamber having multiple outlets which are each cyclically operated and operate under different

conditions or discharge to different lines.