US PATENT SUBCLASS 277 / 605
.~.~ Hollow, fluid-filled, or inflatable

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

590  DF  SEAL BETWEEN FIXED PARTS OR STATIC CONTACT AGAINST RELATIVELY MOVABLE PARTS {3}
602  DF  .~ Contact seal for a pipe, conduit, or cable {10}
605.~.~ Hollow, fluid-filled, or inflatable

DEFINITION

Classification: 277/605

Hollow, fluid filled or inflatable:

(under subclass 602) Pipe, conduit, or cable wherein the seal or an associated member has a cavity or chamber that is empty, contains a liquid or gas, or is expanded by entry of a pressurized fluid.

SEE OR SEARCH THIS CLASS, SUBCLASS:

331+, for an inflatable packer-type seal for well apparatus.

583, for a dynamic, inflatable, or biased by an inflatable member circumferential contact seal for other than a piston.

645+, for a static, contact seal for other than an internal combustion engine, or a pipe, conduit, or cable having a particular hollow or filled chamber cross-section.