US PATENT SUBCLASS 411 / 531
WASHER STRUCTURE

Current as of: June, 1999
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411 /   HD   EXPANDED, THREADED, DRIVEN, HEADED, TOOL-DEFORMED, OR LOCKED-THREADED FASTENER

531WASHER STRUCTURE {11}
532  DF  .~> Including release means
533  DF  .~> Including means for retaining washer to fastener
534  DF  .~> Including antifriction means
535  DF  .~> Including adjustable thickness means {1}
537  DF  .~> Having leveling means {1}
539  DF  .~> Radially positionable {2}
542  DF  .~> Sealing
543  DF  .~> Wire formed
544  DF  .~> Axially resilient
545  DF  .~> Corrugated
546  DF  .~> Spacer {1}

DEFINITION

Classification: 411/531

WASHER STRUCTURE:

(under the class definition) Subject matter in the form of an annular element adapted to be placed beneath the bearing surface of a bolt head, nut, or the like.

(1) Note. The washers of this and indented subclasses are provided for sealing, reducing friction, ornamenting, etc.

SEE OR SEARCH THIS CLASS, SUBCLASS:

132+, for a threaded fastener (i.e., a bolt or nut) and means for restricting the rotation thereof relative to a coacting substructure and wherein the means includes a restricting member and further wherein the member or a portion thereof is located between the substructure and the inwardly facing surface of the bolt head or nut, and see especially subclasses 147+ thereunder wherein the member comprises a

washer formed as a closed loop, or an apertured plate, or a split ring.

260+, for a threaded bolt and nut and means for coupling them against rotation relative to one another and wherein the means comprises a thread lock and further wherein the means includes a distortable metallic element, which element may be a washer.

270, for a threaded bolt and nut and means for coupling them against rotation relative to one another and wherein the means comprises a thread lock and further wherein the means includes a tapered surface for wedging the internally threaded element against the externally threaded one and additionally wherein the internally threaded element is segmented and lastly wherein a member, which may be a washer, is included for carrying the tapered surface and surrounding the segmented element.

275, for a threaded bolt and nut and means for coupling them against rotation relative to one another and wherein the means comprises a thread lock and further wherein one of the elements, or a discrete member, is adapted to cant the assembly and additionally wherein a discrete member, which may be a washer, accomplishes the canting. 313+, for a threaded bolt and nut and means for coupling them against rotation relative to one another and wherein the means comprises a washer having a deformable portion engageable with one of the threaded elements.

318+, for a threaded fastener with a nut, washer, securing means, or cap, and wherein the fastener is a threaded one and is provided with a nut and further wherein a washer is included.

329+, for a threaded bolt and nut and means for coupling them against rotation relative to one another and wherein the means comprises a pawl and ratchet and further wherein the pawl is carried by a washer.

332+, for a headed fastener with a nut, washer, securing means, or cap and wherein the element which is in addition to the fastener is limited to being either a washer or a cap.

SEE OR SEARCH CLASS

16, Miscellaneous Hardware,

108+, for miscellaneous ferrules, rings, and thimbles.