US PATENT SUBCLASS 415 / 37
.~.~.~ Including valve in interstage or re-entry passage

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}
37.~.~.~ Including valve in interstage or re-entry passage

DEFINITION

Classification: 415/37

(under subclass 36) Apparatus in which the means controlling the quantity of working fluid* flowing is located intermediate a plurality or rows or series of blades*, or within a passage which redirects the working fluid* back to the same blade* or series of blades* from whence it was discharged.

SEE OR SEARCH THIS CLASS, SUBCLASS:

11+, for means to recirculate fluid back to a pump runner and a control means therefor responsive to a condition or characteristic of the working fluid.

52.1+, for guide vanes or valves in re-entry or recirculation passages where no automatic control is involved.