US PATENT SUBCLASS 470 / 81
.~.~.~.~ Rotatable type

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}
80  DF  .~.~.~ Having chaser cutter {1}
81.~.~.~.~ Rotatable type

DEFINITION

Classification: 470/81

Rotatable type:

(under subclass 66) Subject matter wherein the instrument is mounted on the component at a right angle of the fastener and further wherein the instrument is capable of moving in a circular path having the same circular pitch as the thread desired to produce on the fastener such that the instrument has a rolling motion along the fastener as the instrument moves along relative to fastener in the direction of the axis of the fastener.