US PATENT SUBCLASS 415 / 55.6
.~.~.~ Acting serially but nonalternating (e.g., multistage, 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}
55.5  DF  .~.~ Having plural, rigidly related blade sets {2}
55.6.~.~.~ Acting serially but nonalternating (e.g., multistage, etc.)

DEFINITION

Classification: 415/55.6

Acting serially but nonalternating (e.g., multistage, etc.):

(under subclass 55.5) Device wherein the working fluid* contacts the first and second blade* rows in sequence but wherein the working fluid* is not acted upon by the first blade row, then by the second blade row, and then again by the first blade row (i.e., alternating blade row contact).

SEE OR SEARCH THIS CLASS, SUBCLASS:

199.1+, for a device having plural, serial, radial flow blade sets and an intermediate stationary flow diverter.