US PATENT SUBCLASS 277 / 421
.~.~.~.~ Having installation, removal, assembly, disassembly, or repair feature

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}
411  DF  .~.~ Gap or clearance {2}
412  DF  .~.~.~ Labyrinth {7}
421.~.~.~.~ Having installation, removal, assembly, disassembly, or repair feature

DEFINITION

Classification: 277/421

Having installation, removal, assembly, disassembly or repair feature:

(under subclass 412) Labyrinth including means to aid in mounting, extricating, construction, dismantling or restoration of the seal.

SEE OR SEARCH THIS CLASS, SUBCLASS:

323, for a seal for well apparatus having an installation, removal, assembly, disassembly, or repair feature.

370+, for a relatively rotatable extending sealing face member (e.g., face, mechanical, etc.) having an installation, removal, assembly, disassembly, or repair feature.

435, for a piston ring, piston ring expander, or seat therefore having an installation, removal, assembly, disassembly or repair feature.

511, for a dynamic circumferential contact seal intended for containment or compression by a gland member in a packing box having an installation, removal, assembly, disassembly, or repair feature.

551, for a dynamic, peripheral, radially sealing, flexible projection (e.g., lip seal, etc.) for other than a piston having an installation, removal, assembly, disassembly, or repair feature. 598, for a static contact seal for use between parts of an internal combustion engine having an installation, removal, assembly, disassembly or repair feature.

609, for a static contact seal intended for insertion between an end-to-end pipe, conduit, or cable joint having an installation, removal, assembly, disassembly, or repair feature.

630, for a static contact seal for other than an internal combustion engine, or a pipe, conduit, or cable having an installation, removal, assembly, disassembly, or repair feature.

SEE OR SEARCH CLASS

29, Metal Working, for a method of mechanical manufacture or for apparatus to assemble or disassemble,

402.02, for a method of repairing a seal or element thereof not provided for elsewhere, or subclasses 700+ for general apparatus to assemble or disassemble.