US PATENT SUBCLASS 415 / 38
.~.~.~ Plural passages with sequential or reverse fluid control

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

Internet Version by PATENTEC © 1999      Terms of Use


415 /   HD   ROTARY KINETIC FLUID MOTORS OR PUMPS

13  DF  WITH CONTROL MEANS RESPONSIVE TO NON-CYCLIC CONDITION SENSING, CENTRIFUGAL ACTUATION OR TORQUE {13}
30  DF  .~ By shaft speed or torque responsive means {5}
36  DF  .~.~ Of working fluid valve or vane {6}
38.~.~.~ Plural passages with sequential or reverse fluid control {2}
39  DF  .~.~.~.~> Inlet and relief or bypass valves
40  DF  .~.~.~.~> Fluid motor operated valve

DEFINITION

Classification: 415/38

(under subclass 36) Apparatus comprising control means for a plurality of passages for flow of working fluid*, said control means being operable to permit flow serially through the passages or to permit flow through one passage while shutting off flow through another.