US PATENT SUBCLASS 277 / 427
.~.~.~ Forms centrifugal liquid barrier

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.~.~.~ Forms centrifugal liquid barrier {1}
428  DF  .~.~.~.~> Having cup or chamber inside the impeller or another rotating member

DEFINITION

Classification: 277/427

Forms centrifugal liquid barrier:

(under subclass 423) Impeller seal for moving or directing the sealed or sealing fluid outwardly from its rotational axis to create a liquid wall at the joint or juncture.

SEE OR SEARCH CLASS

415, Rotary Kinetic Fluid Motors or Pumps, for a means of

guiding or confining (e.g., casing, distributing means, etc.) a working fluid (i.e., a liquid or gas that contacts or supports a rotary means that drives or is driven by the liquid or gas),

109, for a rotating shaft having an abutment surface imparting motion in a sealing fluid inside a chamber.