US PATENT SUBCLASS 415 / 58.6
.~ Open recirculation from and to blade set


Current as of: June, 1999
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415 /   HD   ROTARY KINETIC FLUID MOTORS OR PUMPS

52.1  DF  WITH MEANS FOR RE-ENTRY OF WORKING FLUID TO BLADE SET (E.G., RE-ENTRY TYPE DEVICE, PASSAGE, ETC.) {11}
58.6.~ Open recirculation from and to blade set


DEFINITION

Classification: 415/58.6

Open recirculation from and to blade set:

(under subclass 52.1) Device wherein the (reentry) means directs the working fluid* from and back to the blade* or blade row along a circulatory path which lies entirely within an unconfined and unobstructed (i.e., open, nonpassageway) area.

SEE OR SEARCH THIS CLASS, SUBCLASS:

53.1+, for a cross flow runner incorporating a fluid vortex which directs working fluid to and from a blade set in open recirculation.

55.1+, for a turbine regenerative pump which has open recirculation of working fluid from and back to a blade set.

57.1+, for a device having plural, serially acting, and open recirculation means for the reentry of working fluid from and back to a blade or blade set.

225, for a device having an exit chamber axially offset from a runner which device may disclose structure which involves some open recirculation of working fluid from and back to a blade set.