US PATENT SUBCLASS 411 / 176
.~.~ Fastener having a deformable portion or deforms substructure (e.g., prong)

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.~.~ Fastener having a deformable portion or deforms substructure (e.g., prong) {3}
177  DF  .~.~.~> Nut assembled to substructure utilizing cooperating regions on both {5}
183  DF  .~.~.~> Nut assembled to substructure by plastically deformable region on nut
184  DF  .~.~.~> Region on inwardly facing surface of bolt head or nut {3}

DEFINITION

Classification: 411/176

Fastener having a deformable portion or deforms substructure (e.g., prong):

(under subclass 166) Device wherein the structural characteristic comprises the inclusion in one or more of the bolt or the nut or the substructure of at least one region (e.g., area, portion, etc.) which is inherently capable of (a) undergoing a significant change (e.g., a distortion) in configuration or shape, which change may be either elastic or plastic in nature, (b) causing such a change in another of the bolt, nut or substructure, or (c) causing such a change in another, and, either in reaction thereto or as a result of another force, undergoing a change in its own configuration or shape.

(1) Note. The capability of one region for causing deformation in another region usually is a matter of the hardness of one relative to that of the other.