US PATENT SUBCLASS 411 / 378
EXTERNALLY THREADED FASTENER ELEMENT, E.G., BOLT, SCREW, ETC.

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

378EXTERNALLY THREADED FASTENER ELEMENT, E.G., BOLT, SCREW, ETC. {16}
379  DF  .~> Stay bolt {2}
383  DF  .~> Multipart {2}
386  DF  .~> Pilot end having means enhancing fastening or installation {1}
388  DF  .~> Double-ended {1}
390  DF  .~> Single element having means facilitating or effecting separation {1}
392  DF  .~> Resiliently flexible
393  DF  .~> Set screw
394  DF  .~> Drive screw
395  DF  .~> Having bore therethrough
396  DF  .~> Separate head element {1}
398  DF  .~> Head eccentric with respect to fastener axis
399  DF  .~> Head having counter-sinking means
400  DF  .~> Hook head, e.g., J-bolt, etc.
401  DF  .~> Elongated head, e.g., hanger bolt, etc.
402  DF  .~> Head driving structure {4}
411  DF  .~> Thread or shank structure {7}

DEFINITION

Classification: 411/378

EXTERNALLY THREADED FASTENER ELEMENT, E.G., BOLT, SCREW, ETC.:

(under the class definition) Subject matter drawn to an elongated fastening means provided with an exterior helical ridge.

SEE OR SEARCH THIS CLASS, SUBCLASS:

168, for an externally threaded fastener driven into a substructure (i.e., a workpiece) and means consisting of, or including, a thread lock for restricting the rotation of the fastener relative to the substructure.

SEE OR SEARCH CLASS

285, Pipe Joints or Couplings,

191, for end to side or plate bolt joint.

470, Threaded, Headed Fastener, or Washer Making: Process and Apparatus,

8+, for processes of making externally threaded fastener elements (e.g., screws, bolts, etc.).