US PATENT SUBCLASS 277 / 344
.~ Segmented radially actuated packer (e.g., oil saver, gas saver, etc.) for above ground apparatus


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



277 /   HD   SEAL FOR A JOINT OR JUNCTURE

322  DF  SEAL FOR WELL APPARATUS {8}
344.~ Segmented radially actuated packer (e.g., oil saver, gas saver, etc.) for above ground apparatus


DEFINITION

Classification: 277/344

Segmented radially actuated packer (e.g., oil saver, gas saver, etc.) for above ground apparatus:

(under subclass 322) Seal for well apparatus wherein the seal is divided into portions intended for movement in a direction perpendicular to and seal an annular axial flow path formed at the joint or juncture between the part (e.g., axial rod, pipe, drill stem, etc.) surrounded by another part (e.g., well casing) intended to function or remain at ground level.

SEE OR SEARCH THIS CLASS, SUBCLASS:

325, for a segmented and radially actuated (e.g., ram-type, etc.) seal for a well apparatus overpressure control device (e.g., seal for a blowout preventer, etc.).

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.