US PATENT SUBCLASS 29 / 264
.~.~.~.~.~ Screw threaded work-engager

Current as of: June, 1999
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29 /   HD   METAL WORKING

700  DF  MEANS TO ASSEMBLE OR DISASSEMBLE {55}
244  DF  .~ Puller or pusher means, contained force multiplying operator {11}
256  DF  .~.~ Having screw operator {2}
258  DF  .~.~.~ Central screw, work-engagers around screw {3}
263  DF  .~.~.~.~ Tubular or tube segment forms work-engager {2}
264.~.~.~.~.~ Screw threaded work-engager

DEFINITION

Classification: 29/264

Screw threaded work engager:

(under subclass 263) Apparatus in which the tubular or tube segment work engager has screw threads for engagement with a threaded work part for reaction therewith.

(1) Note. The threaded work engaging part may be mounted on the nut, nut frame, or force developing screw.

SEE OR SEARCH THIS CLASS, SUBCLASS:

277, for a hand manipulatable impact receiving tool having a threaded device to be applied to screw threaded work to protect the same from impact.

281, for a hand manipulatable for tube sleeve or ferrule applying or removing having a thread tapping work grip.