US PATENT SUBCLASS 411 / 177
.~.~.~ Nut assembled to substructure utilizing cooperating regions on both

Current as of: June, 1999
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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.~.~.~ Nut assembled to substructure utilizing cooperating regions on both {5}
178  DF  .~.~.~.~> Nut is externally and internally threaded cylinder
179  DF  .~.~.~.~> Nut penetrates substructure and anchors itself thereto (e.g., pierce nut)
180  DF  .~.~.~.~> Nut deforms wall of preformed opening in substructure during assembly
181  DF  .~.~.~.~> Both cooperating regions deformed
182  DF  .~.~.~.~> Nonmetallic nut, resiliently deformed during assembly

DEFINITION

Classification: 411/177

Nut assembled to substructure utilizing cooperating regions on both:

(under subclass 176) Device wherein a nut and a substructure, each having a deformable/deformation-producing region, are

joined to one another, and wherein, as a result of the joining, the region of one deforms, or is deformed by, or both, the corresponding region of the other.

(1) Note. The assembly with which this and the indented subclasses are concerned is that of the nut to the substructure prior to the threading of a bolt with the nut.