US PATENT SUBCLASS 269 / 157
.~ With means to bias jaw(s) toward nonholding position

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


269 /   HD   WORK HOLDERS

86  DF  RELATIVELY MOVABLE JAWS {25}
157.~ With means to bias jaw(s) toward nonholding position {5}
158  DF  .~.~> Pedal lever actuator {1}
160  DF  .~.~> Spring coil around actuating screw
161  DF  .~.~> Leaf spring between pivoted jaws
162  DF  .~.~> Spring coil around or abutting cam or cam follower
163  DF  .~.~> With articulated attachment or insert for jaws

DEFINITION

Classification: 269/157

(under subclass 86) Device including resilient or weight means urging one or more jaws* into nongripping relationship with the work.

(1) Note. Included here are means which rely upon springs, gravity or resiliency of structural elements. These means must be claimed for placement of a patent in this subclass, rather than in other coordinate subclasses below on the basis of other jaw positioning features.

SEE OR SEARCH THIS CLASS, SUBCLASS:

254, for patents for a holder with bias means to urge jaws toward work gripping position.