US PATENT SUBCLASS 72 / 386
.~ With tool motion in fixed path

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

380  DF  BY RELATIVELY MOVABLE OFFSET TOOL-FACES (E.G., FOR BENDING OR DRAWING) {4}
386.~ With tool motion in fixed path {3}
387  DF  .~.~> Pivotal motion only {1}
389.1  DF  .~.~> Between and co-planar with opposed tools {8}
391.2  DF  .~.~> Concentric or telescoped tools {1}

DEFINITION

Classification: 72/386

With tool motion in fixed path:

(under subclass 380) Device wherein the means to move or guide said movable tool is effective to restrict the motion of said tool to the same path during all operations of the class type.

(1) Note. A device employing a freely movable sling suspended and pulled by block and tackle (e.g., for bending a large pipe) would be excluded from this subclass, for the actual path of movement of the sling would vary in accordance with characteristics of the workpiece, pulling force, etc. (See subclass 380 for a device of this kind).

(2) Note. The accompanying diagram illustrates the essentials of a device for subclass 386. [figure] [caption]Offset-face tool-couple (actual tool-faces are indicated by shading) (subclass 386).