US PATENT SUBCLASS 411 / 545
.~ Corrugated


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

531  DF  WASHER STRUCTURE {11}
545.~ Corrugated


DEFINITION

Classification: 411/545

Corrugated:

(under subclass 531) Subject matter wherein the element is formed with folds defining a series of alternating grooves and ridges on the opposed faces thereof.

SEE OR SEARCH THIS CLASS, SUBCLASS:

161, for a washer having ridges or grooves extending more or less radially across its axially facing surfaces, and wherein the washer is disclosed as being a component of a bolt-to-substructure, or a nut-to-substructure, locking arrangement.