US PATENT SUBCLASS 277 / 500
.~ Circumferential contact seal for other than piston

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}
500.~ Circumferential contact seal for other than piston {13}
501  DF  .~.~> And magnetic bias
502  DF  .~.~> For valve stem in internal combustion engine
503  DF  .~.~> Accommodates gyratory or oscillatory motion {4}
510  DF  .~.~> Contained or compressed by gland member in packing box {10}
543  DF  .~.~> Segmented ring {4}
549  DF  .~.~> Peripheral radially sealing flexible projection (e.g., lip seal, etc.) {12}
578  DF  .~.~> Having circumferentially adjustable biasing element
579  DF  .~.~> Having floating ring or bushing (i.e., circumferentially contacting) {3}
584  DF  .~.~> Extrusion preventing (i.e., antiextrusion) structure
585  DF  .~.~> Elongated sleeve or bushing
586  DF  .~.~> Seated in groove having stepped walls
587  DF  .~.~> Seated in groove having oblique wall
589  DF  .~.~> Radially backed by resilient or elastomeric member

DEFINITION

Classification: 277/500

Circumferential contact seal for other than piston:

(under subclass 345) Dynamic seal wherein the seal has a radial peripheral surface contact against one or more of the relatively movable parts and for other than a part (i.e., a piston) that reciprocates along an axis to an enclosing wall and where the seal is for engaging the wall.

SEE OR SEARCH THIS CLASS, SUBCLASS:

311, for a process of dynamic sealing employing a flexible ring.

354, for a dynamic seal for a helically threaded part.

907, for a passageway in a rod or shaft.

908, for a seal for use in a rotating and reciprocating arrangement.

909, for a seal having similar sealing structures for a piston and rod. 910, for an O-ring seal.

SEE OR SEARCH CLASS

92, Expansible Chamber Devices,

168, for a nonmetallic seal means between a piston or a part moved by the piston and a cylinder end portion.

123, Internal-Combustion Engines,

90.37, for a poppet valve mechanism's lubrication system's seal or shield that includes those mounted on a valve stem.

175, Boring or Penetrating the Earth, for processes and means for initially forming or radially enlarging an elongated hole in the earth in situ,

359, for mutually contacting cutter supports that are circumferentially displaced axes for a rolling cutter bit or rolling cutter bit element with seal details, or subclass 371 for a rolling cutter bit or rolling cutter bit element with seal details.

188, Brakes, for means of retarding motion of or stopping of machines;

322.17, for an internal resistance motion retarder including a thrust component used to vary volume in a fluid-filled chamber having a particular retarder component structure with a dynamic sealing ring or flexible boot between a piston rod and cylinder.

241, Solid Material Comminution or Disintegration,

216, for cooperating comminuting surfaces having a gyratory member that includes rotary motion and means to seal the comminuting zone from a drive or other moving parts. 251, Valves and Valve Actuation, for means to close or restrict a flow of fluid through a passage by a definite predetermined motion of the means combined with a seal,

214, for a valve actuated by a mechanical movement means and having a particularly associated sealing means for either.

301, Land Vehicles: Wheels and Axles, for a wheel or axle, or where they are a dominant feature when combined with other vehicle structure;

123, for a seal to exclude dirt or dust from a wheel or axle bearing.

305, Wheel Substitutes for Land Vehicles,

100+, for a flexible track joint structure (e.g., pin, link, etc.) including a seal, deflector, or scraper.

384, Bearings, for more than nominal bearing structure or detail (e.g., liner, bearing race, cage, etc.) combined with a specific seal,

151+, for a plain radial bearing where the seal's material is resilient and on the outer area of the bearing or shaft.

417, Pumps, for a general means to move a fluid from one place to another having an inlet and an outlet,

423.11, for a rotary electric motor and rotary nonexpansible chamber pump having sealing means therebetween.

440, Marine Propulsion, for a vessel and a device (e.g., propeller, impeller, etc.) other than a sail to move the vessel through water, 112, for means to mount an engine within the vessel's hull and sealing means for a propeller shaft that pierces the hull.