US PATENT SUBCLASS 269 / 139
.~ With means to align coacting jaw faces


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

86  DF  RELATIVELY MOVABLE JAWS {25}
139.~ With means to align coacting jaw faces


DEFINITION

Classification: 269/139

(under subclass 86) Device including additional means for moving a jaw* so as to vary the disposition (i.e., orientation) of the work engaging surface of said jaw with respect to the work engaging surface of an opposed jaw.

(1) Note. The movement effected by the additional means is other than such movement as will engage and grip work. A

patent to a holder with additional means to pivot one jaw with respect to another, which pivotal movement is effective to engage and grip work, is therefore not to be placed in this subclass even though the relative orientation of coacting jaw faces is changed. Generally, the pivot of the jaw is external of the jaw body when the pivotal movement is part of the jaw actuation, and the pivot is internal of the jaw body when the pivotal movement is merely for jaw alignment.

(2) Note. Patent placement here requires that the holder include positive means to change the jaw orientation. Mere pivot, swivel, slide or articulation means for a jaw or jaw portions is not considered such a positive means. See illustration under subclass 258.

(3) Note. Generally, the change in orientation involves either (a) variation in angularity of the work engaging surface with respect to line of relative gripping movement or (b) shift of the work engaging surface normal or lateral to the line of relative gripping movement or (c) both variation in angularity and lateral shift.

SEE OR SEARCH THIS CLASS, SUBCLASS:

164, for patents to a holder with means to adjust portions of the same jaw with respect to each other laterally of the line of relative gripping movement. 237+, for patents to a holder with relatively pivoted jaws.

258+, for patents to a holder characterized by adjustable jaw features.

SEE OR SEARCH CLASS

81, Tools,

421, for patents to pliers with articulated jaws.