US PATENT SUBCLASS 269 / 140
.~ With separate positioning means for each of jaw pair

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

86  DF  RELATIVELY MOVABLE JAWS {25}
140.~ With separate positioning means for each of jaw pair {5}
141  DF  .~.~> Adjustable positioning only
142  DF  .~.~> Separate means to actuate each of a jaw pair {2}
146  DF  .~.~> Means to both actuate and adjust the same jaw
147  DF  .~.~> Portable straight beam type {2}
150  DF  .~.~> Pivoted jaw actuator means

DEFINITION

Classification: 269/140

(under subclass 86) Device including a means for adjusting* and/or actuating* one jaw* plus a different means for adjusting and/or actuating a coacting jaw.

(1) Note. A device which includes a common driving element, anywhere in a train of mechanisms used to position both jaws, is not considered to have separate means in the sense of the above definition. Such a means is considered to constitute a single positioning means.

(2) Note. The adjustment and/or actuation of the coacting

jaws must be with respect to some common supporting structure, as well as with respect to each other, for inclusion in this and indented subclasses.

(3) Note. This subclass does not include devices having three work gripping elements mutually movable to hold work, for which see subclass 156.

(4) Note. In the figure below the pins on bar 3 provide for adjustment of one jaw and the screw 2 provides for actuation of the other jaw. [figure]

SEE OR SEARCH THIS CLASS, SUBCLASS: 165+, for patents to a holder with the specific adjustment means.

216+, for patents to a holder with specific actuating means.

218, for patents to a holder with common means to simultaneously actuate plural jaws.