US PATENT SUBCLASS 470 / 82
.~.~.~ Having recessed cylindrical die block

Current as of: June, 1999
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470 /   HD   THREADED, HEADED FASTENER, OR WASHER MAKING: PROCESS AND APPARATUS

57  DF  APPARATUS FOR MAKING EXTERNALLY THREADED FASTENER OR ARTICLE, E.G., SCREW, BOLT, ETC. {2}
58  DF  .~ Screw fastener making {6}
66  DF  .~.~ Having thread cutting means {8}
82.~.~.~ Having recessed cylindrical die block

DEFINITION

Classification: 470/82

Having recessed cylindrical die block:

(under subclass 66) Subject matter wherein the component comprises a cylindrical structure having an external thread wherein the structure is capable of forming a thread by removing a portion of the structure on a line parallel to the axis of the structure.

SEE OR SEARCH CLASS

82, Turning,

13, for lathes for producing an axial pattern which is predetermined by that of a formed cutter or series of juxtaposed cutters.

407, Cutters, for Shaping,

64, for a cutter comprised of an elongated member, arcuate about a center and having at its leading extremity a planar face intersecting the arcuate surface to form the cutting edge, which planar face is generally in a plane extending through the center, which cutter is adapted to cut such that the chip formed is directed to pass over the planar face.