US PATENT SUBCLASS 415 / 55.4-- .~.~.~ Positioned at passage end (e.g., stripper seal, etc.)

US PATENT SUBCLASS 415 / 55.4
.~.~.~ Positioned at passage end (e.g., stripper seal, etc.)

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}
55.1	DF	.~ Turbine regenerative pump {2}
55.2	DF	.~.~ Having specific means to deflect working fluid in regenerative passage {2}
55.4		.~.~.~ Positioned at passage end (e.g., stripper seal, etc.)

DEFINITION

Classification: 415/55.4

Positioned at passage end (e.g., stripper seal, etc.):

(under subclass 55.2) Device wherein the working fluid* conducting, guiding, or distributing means is positioned generally at a circumferential limit (i.e., end) of the (regenerative) channel portion.

(1) Note. A device having a stripper seal which prevents or retards working fluid* from passing from the working fluid outlet of the channel portion to the working fluid inlet of the channel portion is included in this subclass.