US PATENT SUBCLASS 72 / 80
.~ During rotation of work

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}
80.~ During rotation of work {12}
81  DF  .~.~> With "pattern" causing movement of presser member
82  DF  .~.~> Caused by work-holding, shape-imparting form (e.g., for "spinning") {1}
84  DF  .~.~> Using tool having rotating surface moving along it axis of rotation during deformation {1}
86  DF  .~.~> Using angularly related roller-couple acting parallel to axis of work rotation {1}
88  DF  .~.~> Caused by tools (e.g., "platens") relatively moving parallel to their surface {2}
91  DF  .~.~> Caused by rotating tool and opposing concave surface {1}
94  DF  .~.~> And movement of work laterally of rotational axis during deformation
95  DF  .~.~> And longitudinal movement of work {4}
101  DF  .~.~> Using rotating tool-couple relatively adjustable about pivot normal to tool axis
102  DF  .~.~> Using non-cylindrical rotating tool {5}
110  DF  .~.~> Using roller-cluster
111  DF  .~.~> Using tool-couple

DEFINITION

Classification: 72/80

During rotation of work:

(under subclass 67) Subject matter wherein the work* clearly turns about its axis while deformation occurs.

(1) Note. The expression "while deformation occurs" is intended to restrict this subclasses (80+) to disclosures wherein the work rotates at the time that deformation takes place. It is not intended to include disclosures wherein the work is rotated before or after deformation (e.g., indexing), which disclosures have been placed elsewhere, based on tool or work-handling structure.