US PATENT SUBCLASS 411 / 136
.~.~ Member comprises looplike element (e.g., washer) interlocked with additional element, one of them engaging substructure or surface in other than planar, face-to-face contact


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}
132  DF  .~ Lock washer-type member located between substructure and bolt head or nut {8}
136.~.~ Member comprises looplike element (e.g., washer) interlocked with additional element, one of them engaging substructure or surface in other than planar, face-to-face contact {3}
137  DF  .~.~.~> Two looplike elements interlocked by laterally introduced key
138  DF  .~.~.~> Pawl element, movably carried by looplike element, coacts with ratchet on surface
139  DF  .~.~.~> Laterally introduced key locks looplike element to surface


DEFINITION

Classification: 411/136

Member comprises looplike element (e.g., washer) interlocked with additional element, one of them engaging substructure or surface in other than planar, face to face contact:

(under subclass 132) Device wherein the member is made up of two or more elements which are so structured as to mechanically interengage, interconnect, interlock, etc., in a manner which limits, in at least one direction, the movement of one element with respect to at least one other element, and wherein one or more of the elements form a closed, or a more nearly closed than open, circle or polygon, the central axis of which is in, or approximately in, coincidence with the principal axis of the bolt or nut, and further wherein one or more of the elements makes contact with the substructure or with the inwardly facing surface of the bolt head or nut in a manner which involves more than that represented by engaging one flat face with another such face.

(1) Note. In this subclass (136), that element of the member which is in confronting relation with the inwardly facing surface frequently is provided with, on its surface-confronting portion, teeth or equivalent formations for increasing the resistance to turning, at least in an unthreading direction, of the bolt or nut.

SEE OR SEARCH THIS CLASS, SUBCLASS:

146, for the reference to this subclass (136) appearing in (2) Note thereof.