US PATENT SUBCLASS 72 / 115
.~.~ Comprising movable tool cooperating with fixed, work-spaced tool

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

67  DF  BY USE OF TOOL ACTING DURING RELATIVE ROTATION BETWEEN TOOL AND WORK ABOUT INTERNAL CENTER (E.G., GYRATING OR ROTATING TOOL) {10}
112  DF  .~ Tool orbiting or rotating about an axis {8}
115.~.~ Comprising movable tool cooperating with fixed, work-spaced tool {2}
116  DF  .~.~.~> Plural, selectively usable fixed tools
117  DF  .~.~.~> Outwardly acting movable tool

DEFINITION

Classification: 72/115

Comprising movable tool cooperating with fixes, work-spaced tool:

(under subclass 112) Subject matter including a stationary member about which the tool orbits or rotates to cooperate with the member in such manner that only work is located between the tool in motion and the stationary member during operation.

(1) Note. Included in this subclass are patents disclosing a fixed tool which supports the work and imparts all or part of its shape to the work as it coacts with the rotating or orbiting tool.

(2) Note. The disclosures herein are similar to those in subclass 82 above with the difference that the movements of the parts are reversed, that is, whereas the work rotates in subclass 82 as it is "spun", in this subclass (115) the tool orbits around stationary work.

(3) Note. The phrase "only work is located between" is intended to include disclosures wherein directly opposite surface portions of work are engaged by the tools. Thus, a disclosure wherein one tool engages an interior surface portion of a tube and the other tool engages the opposing exterior surface portion of that tube, would be placed herein. On the other hand, a disclosure wherein the tools contact chordally or diametrically opposite exterior surface portions of a tube would not fit this definition, since in the zone of deformation, a body of air occupies the space between the interior surface portions of the tube. This disclosure would be found in other subclasses, based upon the structure of the tools.