US PATENT SUBCLASS 411 / 185
.~.~.~.~ Surface extends radially beyond flat sides of bolt head or nut

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}
184  DF  .~.~.~ Region on inwardly facing surface of bolt head or nut {3}
185.~.~.~.~ Surface extends radially beyond flat sides of bolt head or nut {1}
186  DF  .~.~.~.~.~> And includes resilient flange

DEFINITION

Classification: 411/185

Surface extends radially beyond flat sides of bolt head or nut:

(under subclass 184) Device wherein the bolt head or the nut includes a plurality of planar, sidewardly facing surfaces (e.g., for engagement by a wrench), and wherein the inwardly facing (i.e., the working) surface of the bolt head or the nut is given a radial dimension which is greater than the distance separating opposite ones of the sidewardly facing surfaces.