US PATENT SUBCLASS 415 / 168.2
.~ Leakage through seal between runner or shaft and static part

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

168.1  DF  INCLUDING MEANS FOR HANDLING WORKING FLUID LEAKAGE {1}
168.2.~ Leakage through seal between runner or shaft and static part {2}
168.3  DF  .~.~> Screw type pumping seal
168.4  DF  .~.~> Means specific to axial flow runner

DEFINITION

Classification: 415/168.2

Leakage through seal between runner or shaft and static part:

(under subclass 168.1) Device wherein the working fluid* has passed through at least a portion of a structure which prevents or retards the flow of working fluid between a runner* or shaft* and a fixed element (i.e., seal).

(1) Note. The structure may be integral with the runner, shaft, or fixed element.