US PATENT SUBCLASS 411 / 125
.~.~ Sheet metal member having resilient pawl distorted therefrom

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}
116  DF  .~ Head or nut side face held by discrete member (e.g., side lock) {7}
125.~.~ Sheet metal member having resilient pawl distorted therefrom {2}
126  DF  .~.~.~> Member includes means which attempt to penetrate substructure
127  DF  .~.~.~> Member abuts coacting part on substructure

DEFINITION

Classification: 411/125

Sheet metal member having resilient pawl distorted therefrom:

(under subclass 116) Device wherein that portion, or one or more of a plurality thereof, of the member which engages one or more of the flat sides or sidewardly facing formations of the bolt head or nut is a pawl which is elastic in nature and is formed by bending, cutting, punching, stamping, etc., a part of a sheet metal member away from the plane of the remainder of the member.

(1) Note. Most typically, the nonplanar part is depressed and overridden by the corners of a bolt head or nut while the latter is turning in its tightening direction, subsequent to which the part springs back into a position whereby it blocks the path of a side of the bolt head or nut.

(2) Note. In several respects, the art of this subclass presents a reversal of parts in contrast with the art of subclasses 114+ above, the latter art having the pawl carried by the bolt head or the nut.

SEE OR SEARCH THIS CLASS, SUBCLASS:

114+, as explained in (2) Note above.