US PATENT SUBCLASS 277 / 646
.~.~.~.~ 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}
628  DF  .~ Contact seal for other than internal combustion engine, or pipe, conduit, or cable {9}
644  DF  .~.~ Particular cross-sectional seal profile {3}
645  DF  .~.~.~ Hollow or filled chamber {1}
646.~.~.~.~ Inflatable

DEFINITION

Classification: 277/646

Inflatable:

(under subclass 645) Such as a hollow or filled chamber wherein the chamber has pressurized fluid introduced to expand the seal.

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.

SEE OR SEARCH CLASS

49, Movable or Removable Closures, for more than nominal movable or removable closure structure (e.g., door jam, etc.),

477.1, for a seal acting at a juncture of the closure and an adjacent member having an inflatable or fluid pressure responsive feature.