US PATENT SUBCLASS 411 / 170
.~.~ Nut and washer type formed from single blank folded over substructure

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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}
166  DF  .~ Design of fastener or substructure restricts rotation (e.g., flattened head rotatable in receiving slot, depression in substructure, bolt clipped to substructure) {5}
170.~.~ Nut and washer type formed from single blank folded over substructure

DEFINITION

Classification: 411/170

Nut and washer type formed from single blank folded over substructure:

(under subclass 166) Device wherein the nut and structure (e.g., a washer) which will be axially aligned therewith and positioned between the nut and the substructure, but which remains integral with the nut, are formed in a more or less planar length of stock material and folded one over the other to place the aperture and the threaded opening of the nut in alignment with one another.

(1) Note. The inherent resiliency of the "hinge" portion connecting the nut and apertured spacer is sometimes relied upon to increase the resistance of the nut to turning relative to the substructure.

(2) Note. A plurality of spacers for the nut may be obtained by forming plural apertures in the stock material and then folding it over the appropriate number of times.

SEE OR SEARCH THIS CLASS, SUBCLASS:

147, for the reference to this subclass (170) appearing therein.