US PATENT SUBCLASS 415 / 173.5
.~.~ Labyrinth seal


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

170.1  DF  BEARING, SEAL, OR LINER BETWEEN RUNNER PORTION AND STATIC PART {9}
173.1  DF  .~ Between blade edge and static part {4}
173.5.~.~ Labyrinth seal


DEFINITION

Classification: 415/173.5

Labyrinth seal:

(under subclass 173.1) Device wherein the means prevents or retards the flow of fluid between the peripheral part of the working member blade* and the fixed element. The means comprises maze like or zigzag interconnecting passages formed by the opposing working member peripheral part and fixed element surfaces, through which passages the fluid must flow to pass between the peripheral part of the blade and the fixed element.