US PATENT SUBCLASS 411 / 955
LOCKED BOLTHEAD OR NUT

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

955LOCKED BOLTHEAD OR NUT {7}
956  DF  .~> Automatic base clutch {4}
965  DF  .~> With retainer {6}
972  DF  .~> Distorted
973  DF  .~> Gravity bolthead, nut or washer
974  DF  .~> Side lock {7}
996  DF  .~> Transverse base-locking key
997  DF  .~> Longitudinal fastener

DEFINITION

Classification: 411/955

LOCKED BOLTHEAD OR NUT:

(under the class definition) Art collection wherein a bolthead or nut, hereinafter call a device, is fastened to an element, hereinafter called a substructure, so as to prevent rotation of the device.

(1) Note. A fastening means may be part of the device or the substructure or it may include additional elements.