US PATENT SUBCLASS 277 / 325
.~.~ Segmented radially actuated (e.g., ram type, etc.)

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

322  DF  SEAL FOR WELL APPARATUS {8}
324  DF  .~ For overpressure control device (e.g., seal for a blowout preventer, etc.) {3}
325.~.~ Segmented radially actuated (e.g., ram type, etc.)

DEFINITION

Classification: 277/325

Segmented radially actuated (e.g., ram type, etc.):

(under subclass 324) Overpressure control device wherein the seal is divided into portions and intended for movement in a plane perpendicular to an annular axial flow path formed by the annular passage.

SEE OR SEARCH THIS CLASS, SUBCLASS:

344, for a segmented and radially actuated seal (e.g., oil saver, gas saver, etc.) for well apparatus.

543+, for a dynamic segmented ring circumferentially contacting seal for other than a piston.

626, for a static contact seal having a particular seal shape intended for use on a pipe, conduit or cable.

632, for a peripherally segmented static contact seal for other than an internal combustion engine, or a pipe, conduit, or cable.