US PATENT SUBCLASS 411 / 426
.~.~.~ Tapered

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

Internet Version by PATENTEC © 1999      Terms of Use


411 /   HD   EXPANDED, THREADED, DRIVEN, HEADED, TOOL-DEFORMED, OR LOCKED-THREADED FASTENER

378  DF  EXTERNALLY THREADED FASTENER ELEMENT, E.G., BOLT, SCREW, ETC. {16}
411  DF  .~ Thread or shank structure {7}
424  DF  .~.~ Shank structure {2}
426.~.~.~ Tapered

DEFINITION

Classification: 411/426

Tapered:

(under subclass 424) Subject matter wherein the shank defines a conical surface.

SEE OR SEARCH THIS CLASS, SUBCLASS:

489, for impact driven fasteners having significant tapered shank structure.