US PATENT SUBCLASS 411 / 441
.~.~ Discrete guide or centering means


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

439  DF  IMPACT DRIVEN FASTENER, E.G., NAIL, SPIKE, TACK, ETC. {13}
440  DF  .~ Having means to facilitate explosive driving {1}
441.~.~ Discrete guide or centering means


DEFINITION

Classification: 411/441

Discrete guide or centering means:

(under subclass 440) Subject matter wherein the specially adapted means comprises an alignment or guiding element mounted on a shank portion of the fastener wherein the element is structured to engage and cooperate with an interior surface of a bore of an explosively actuated driving tool.