US PATENT SUBCLASS 29 / 262
.~.~.~.~.~ Pivotal grippers on screw

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}
259  DF  .~.~.~.~ Work-engager arms along or parallel to screw {3}
262.~.~.~.~.~ Pivotal grippers on screw

DEFINITION

Classification: 29/262

Pivotal grippers on screw:

(under subclass 259) Apparatus which have pivotal grippers mounted on the article engaging end of the screw.

SEE OR SEARCH THIS CLASS, SUBCLASS:

261, for pivotal work engager arms mounted on the nut or nut frame.

265, for relatively movable work grippers mounted on the force developing screw and of tubular or tube segment form.