US PATENT SUBCLASS 277 / 428
.~.~.~.~ Having cup or chamber inside the impeller or another rotating member

Current as of: June, 1999
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277 /   HD   SEAL FOR A JOINT OR JUNCTURE

345  DF  SEAL BETWEEN RELATIVELY MOVABLE PARTS (I.E., DYNAMIC SEAL) {10}
409  DF  .~ Close proximity seal (e.g., contactless, fluent, etc.) {4}
423  DF  .~.~ Impeller (e.g., slinger, etc.) {5}
427  DF  .~.~.~ Forms centrifugal liquid barrier {1}
428.~.~.~.~ Having cup or chamber inside the impeller or another rotating member

DEFINITION

Classification: 277/428

Having cup or chamber inside the impeller or another rotating member:

(under subclass 427) Centrifugal liquid barrier wherein the impeller or other revolving component has within an open vessel or cavity.