US PATENT SUBCLASS 72 / 216
.~.~.~ About a fixed pivot


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

199  DF  BY USE OF ROLLER OR ROLLER-LIKE TOOL-ELEMENT {17}
214  DF  .~ Comprising tool movable relative to stationary work-portion during deformation {2}
215  DF  .~.~ Along a curved path {1}
216.~.~.~ About a fixed pivot {1}
217  DF  .~.~.~.~> Work between movable tool and pivot (e.g., sweep-arm bender) {2}


DEFINITION

Classification: 72/216

About a fixed pivot:

(under subclass 215) Subject matter wherein the path of the axis of the tool is confined to movement in an arc having a single center of curvature.