US PATENT SUBCLASS 411 / 178
.~.~.~.~ Nut is externally and internally threaded cylinder

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

81  DF  THREADED FASTENER LOCKED TO A DISCREET STRUCTURE (E.G., PLATE, RAIL, WHEEL) {13}
172  DF  .~ Nut having a portion for attachment to substructure {2}
176  DF  .~.~ Fastener having a deformable portion or deforms substructure (e.g., prong) {3}
177  DF  .~.~.~ Nut assembled to substructure utilizing cooperating regions on both {5}
178.~.~.~.~ Nut is externally and internally threaded cylinder

DEFINITION

Classification: 411/178

Nut is externally and internally threaded cylinder:

(under subclass 177) Apparatus wherein the nut is tubular in nature and is threaded on its outer surface, as well as internally, the outer thread serving to engage the nut with the substructure when the nut is inserted thereinto.

(1) Note. Here, the nut is often the deformation-producing one of the cooperating members, and may, for example, deform the substructure by creating, in an untapped bore thereof, a thread mating with its own thread, or, if the bore is a tapped one, may be provided at some other location with a projection, such as a flange at its outermost end, for interfering with, and deforming, a region of the substructure.

(2) Note. The external thread need not be continuous, and, in fact, may be fragmentary.