US PATENT SUBCLASS 72 / 118
.~.~ Including tool surfaces spaced along orbital axis

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}
118.~.~ Including tool surfaces spaced along orbital axis {1}
119  DF  .~.~.~> Including plural tools rotating on angularly related axes

DEFINITION

Classification: 72/118

Including tool surface spaced along orbital axis:

(under subclass 112) Subject matter including a rotating tool (or tools) having a plurality of faces engaging the work for deformation thereof, wherein the work-engaging faces are separated by an interval measured parallel to the orbital or rotational axis.

(1) Note. Included, for example, in this and indented subclasses are patents disclosing a first tool face which exerts an outward pressure on a portion of the interior surface of a tube to produce a circumferentially expanded area (i.e., rib or bead), and a second tool face which forms a flange or flared area at the end of the tube. In most cases, the two tool faces are mounted at different positions on a rotating tool carrier*, which positions are longitudinally separated with respect to the orbit axis. The first and second faces may be longitudinally separated

portions of the same tool.

(2) Note. In many of the patents in this and the indented subclass, a pipe is disclosed as being joined to an apertured plate by passing the pipe through the plate aperture and the deformations described in (1) Note are positioned on opposite surfaces of the plate whereby the pipe is prevented from shifting axially relative to the plate. However, patents wherein the most comprehensive claim recites structure that, by disclosure, recognizes the pipe and structure that, by disclosure, recognizes the plate (i.e., "assembly") will be found in Class 29, subclasses 243.517+ and 726.

SEE OR SEARCH CLASS

29, Metal Working,

243.517+, and 726, and see (2) Note above.