US PATENT SUBCLASS 269 / 247
.~.~.~.~ Screw within traveling box-beam guide

Current as of: June, 1999
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269 /   HD   WORK HOLDERS

86  DF  RELATIVELY MOVABLE JAWS {25}
216  DF  .~ Means to actuate jaw(s) (i.e., apply holding force) {10}
240  DF  .~.~ Screw-nut type {6}
246  DF  .~.~.~ Screw travels with jaw {4}
247.~.~.~.~ Screw within traveling box-beam guide

DEFINITION

Classification: 269/247

(under subclass 246) Device including a shell or channel member, generally coextensive with and surrounding the screw, which member moving with the screw serves as a slide or rail to determine the path of relative jaw movement.

(1) Note. In most instances the member is so configured as to limit jaw movement to translation.

(2) Note. In the illustration below slide 1 moving with the screw 4 serves as a guide for movement of the jaw coacting with jaw 2. [figure]

SEE OR SEARCH THIS CLASS, SUBCLASS:

250+, for patents to screw actuated holders with means for jaw translation.