US PATENT SUBCLASS 277 / 425
.~.~.~ And static sealing means affected by rotational movement

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}
425.~.~.~ And static sealing means affected by rotational movement {1}
426  DF  .~.~.~.~> Actuated by counterweight

DEFINITION

Classification: 277/425

And static sealing means affected by rotational movement:

(under subclass 423) Impeller seal including means for sealing between the relatively movable parts at rest or at a transitional speed below the effective operation of the impeller.

SEE OR SEARCH THIS CLASS, SUBCLASS:

433, for a dynamic seal where centrifugal force affects change in displacement, shape, or contact.

400, for a relatively rotatable, radially extending sealing face member (e.g., face, mechanical, etc.) providing a hydrodynamic feature.

929, for a seal for other than a dynamic close proximity impeller seal including a static sealing means affected by rotational movement where a change in operation or condition induces additional leakage control.

SEE OR SEARCH CLASS

384, Bearings, for more than nominal bearing structure or detail (e.g., liner, bearing race, cage, etc.) combined with a specific seal, 135+, for a plain, radial bearing where centrifugal force moves or holds the seal in place, or subclass 478 for a radial antifriction bearing where centrifugal force loads the seal or a liquid or gas forms a sealing barrier.