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Class Information
Number: 72/389.2
Name: Metal deforming > By relatively movable offset tool-faces (e.g., for bending or drawing) > With tool motion in fixed path > Between and co-planar with opposed tools > For a small radius bend
Description: Device particularly adapted to deform a workpiece such that the radius of curvature on the inside surface of the workpiece approaches zero.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7624612 |
Device for adjusting angle of golf club shaft |
Dec. 1, 2009 |
| 7596982 |
Apparatus and method for repairing a wheel bearing cage |
Oct. 6, 2009 |
| 7325435 |
Method of manufacturing, apparatus and resulting irregular shaped cross section tubes |
Feb. 5, 2008 |
| 7004005 |
Method and apparatus for producing pipe from metal plate |
Feb. 28, 2006 |
| 5956991 |
Forming device for shaped decoration panels |
Sep. 28, 1999 |
| 5505070 |
Method for forming a sloped bottom tank |
Apr. 9, 1996 |
| 5501094 |
Method for bending a metal thin plate |
Mar. 26, 1996 |
| 5099675 |
Punch and die assembly for bending operations |
Mar. 31, 1992 |
| 5099670 |
Plate bending machine |
Mar. 31, 1992 |
| 5036694 |
Method and apparatus for bending the flange of a workpiece |
Aug. 6, 1991 |
| 5027633 |
Box makers forms |
Jul. 2, 1991 |
| 4991422 |
Plate bending machine |
Feb. 12, 1991 |
| 4637282 |
Method of making clear dies from bar stock |
Jan. 20, 1987 |
| 4488425 |
Bending tool |
Dec. 18, 1984 |
| 4081987 |
Curling punch |
Apr. 4, 1978 |
| 4012936 |
Method and device for bending pipes |
Mar. 22, 1977 |
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