US PATENT SUBCLASS 411 / 92
.~.~ Having plural openings or notches engaging a bolt or nut on two sides

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}
90  DF  .~ Member extending between and engaging flat formed on side of each of a plurality of bolts or nuts (e.g., side lock) {5}
92.~.~ Having plural openings or notches engaging a bolt or nut on two sides {3}
93  DF  .~.~.~> Having plural parts, one of which engages the inwardly facing surface of a bolt head or nut {2}
96  DF  .~.~.~> Having plural parts, one comprising a keeper
97  DF  .~.~.~> Unitary member, deformable in whole or in part

DEFINITION

Classification: 411/92

Having plural openings or notches engaging a bolt or nut on two sides:

(under subclass 90) Device wherein those portions of the member which engage the planar regions of the bolts or nuts are the radially inwardly facing edges or walls of two or more passages through the member, which passages are so located as to be either (a) entirely within the boundaries of the member or (b) along a boundary thereof and thus having a periphery which is not a closed figure, and wherein the edge or wall engages at least two of the planar regions of each bolt or nut.