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Class Information
Number: 72/157
Name: Metal deforming > By deflecting successively-presented portions of work during bodily movement thereof (e.g., for coiling, levelling, curving or troughing material in movement) > By use of work-contacting wiper and moving, work-holding form > Including interchangeable or adjustable wiper or form
Description: Subject matter including means permitting either: (a) by substitution of another wiper or another form, or a portion of either member, or (b) by variation in the position of the wiper relative to the form of the work.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7293444 |
Bending apparatus for rod-shaped and tubular workpieces |
Nov. 13, 2007 |
| 7254972 |
Moving mold mechanism of a pipe bending machine |
Aug. 14, 2007 |
| 7251976 |
Apparatus and method for the noncircular bending of tubes |
Aug. 7, 2007 |
| 7213430 |
Tube bending machine and its right and/or left bending device |
May. 8, 2007 |
| 7174760 |
Dual-directional pipe-bending machine |
Feb. 13, 2007 |
| 7162905 |
Pipe bending pressure die with reversible exit block |
Jan. 16, 2007 |
| 7143621 |
Guide support for a tube-bending machine |
Dec. 5, 2006 |
| 7082798 |
Pipe bending machine |
Aug. 1, 2006 |
| 7076982 |
Concentric bore bend die and clamp insert assembly |
Jul. 18, 2006 |
| 7024903 |
Bending system with multilevel bending tool |
Apr. 11, 2006 |
| 7021102 |
Bending machine with bending tools on opposite sides of a tool platen |
Apr. 4, 2006 |
| 7017380 |
Bending assembly for bending machine |
Mar. 28, 2006 |
| 7010951 |
Feeding mechanism of an automatic pipe bending machine |
Mar. 14, 2006 |
| 6854311 |
Bending machine for tubing, bar and the like |
Feb. 15, 2005 |
| 6655183 |
Lifting mechanism for a head member of a pipe bender |
Dec. 2, 2003 |
| 6651475 |
Tube bending apparatus |
Nov. 25, 2003 |
| 6434993 |
Bending machine for bending threadlike material such as tubes, rods profiles or metal wire |
Aug. 20, 2002 |
| 6345525 |
Tube bending machine, magazine device thereof, and method for loading |
Feb. 12, 2002 |
| 6079246 |
Universal machine for bending pipes or section bars to both fixed and variable curvatures |
Jun. 27, 2000 |
| 5784913 |
Pressure die assist boost system for tube bending machine |
Jul. 28, 1998 |
| 5689988 |
CNC-controlled pipe bending machine |
Nov. 25, 1997 |
| 5548985 |
Rod bender for forming surgical implants in the operating room |
Aug. 27, 1996 |
| 5499521 |
Tube bender apparatus |
Mar. 19, 1996 |
| 5499522 |
Double-head pipe bending machine |
Mar. 19, 1996 |
| 5463888 |
Tube bending apparatus and method |
Nov. 7, 1995 |
| 5373719 |
Device for generating bent portions in a pipe, particularly for generating a pipe coil |
Dec. 20, 1994 |
| 5345803 |
Adjustable tube bending method and apparatus |
Sep. 13, 1994 |
| 5337590 |
Method and apparatus for bending tubes using split bend die |
Aug. 16, 1994 |
| 5327758 |
Pipe bending machines |
Jul. 12, 1994 |
| 5284040 |
Tube bending apparatus with stop and abutment means to set bend angle |
Feb. 8, 1994 |
| 5284041 |
Method for bending tubes using split die |
Feb. 8, 1994 |
| 5263350 |
Multi-function pipe bending machine |
Nov. 23, 1993 |
| 5226305 |
Articulated split roller assembly for tube bender |
Jul. 13, 1993 |
| 5187963 |
Tube bending die |
Feb. 23, 1993 |
| 5127248 |
Process and device for pipe bending |
Jul. 7, 1992 |
| 5125252 |
Variable geometry tube bending dies |
Jun. 30, 1992 |
| 5056347 |
Hand-held bending tool for conduits and rods |
Oct. 15, 1991 |
| 5042279 |
Bending machine |
Aug. 27, 1991 |
| 5010758 |
Bending machine |
Apr. 30, 1991 |
| 4926672 |
Pipe bender |
May. 22, 1990 |
| 4888971 |
Pipe bending machine |
Dec. 26, 1989 |
| 4843859 |
Pipe bender |
Jul. 4, 1989 |
| 4833907 |
Consolidated backshoe die for a tube bender machine |
May. 30, 1989 |
| 4821549 |
Tube bending machine |
Apr. 18, 1989 |
| 4788845 |
Pipe bending machine |
Dec. 6, 1988 |
| 4727738 |
Bending apparatus |
Mar. 1, 1988 |
| 4567745 |
Tube bending machine |
Feb. 4, 1986 |
| 4558583 |
Mobile pipe bending carriage |
Dec. 17, 1985 |
| 4537053 |
Pipe bending machine |
Aug. 27, 1985 |
| 4495788 |
Multiple curvature bender |
Jan. 29, 1985 |
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