US PATENT SUBCLASS 72 / 298
.~.~ With means to rotate clamp about fixed axis

Current as of: June, 1999
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72 /   HD   METAL DEFORMING

293  DF  BY USE OF NON-DEFORMING WORK-GRIPPING CLAMP AND RELATIVELY MOVABLE CLAMP, TOOL OR WORK-FORCER {9}
295  DF  .~ By individually non-deforming clamps {4}
298.~.~ With means to rotate clamp about fixed axis {1}
299  DF  .~.~.~> About axis intersecting work-gripping regions of two clamps (e.g., twisting)

DEFINITION

Classification: 72/298

With means to rotate clamp about fixed axis:

(under subclass 295) Subject matter involving means for mounting one said instrumentality for bodily turning motion about a stationary pivotal bearing, and a power-transmitting element for forcibly turning said instrumentality during an operation of the class type.

(1) Note. Similar devices, but lacking pivotal bearing structure, may be found in subclass 303, the turning effect is limited by a short curved or bowed trackway in most instances. [figure] [caption]Work deformed by relatively pivoted clamps (subclass 298)

SEE OR SEARCH THIS CLASS, SUBCLASS:

80+, for deformation of rotating work which may be held in a rotary clamp or chuck.

303, for a metal tire upsetter of the like, and see (1) Note above.

310, for deformation by the pivotal motion of a work clamp with respect to a passive tool.

371, for coiling or twisting procedure which may involve a disclosed rotary work clamp or gripper.