Bending processor of pipe

Details Bending processor of pipe Bending processor of pipe

2006-04-04

2006-04-04

Banks, Derris H. (Department: 3725)

Metal deforming

By use of non-deforming work-gripping clamp and relatively...

Plural or complex apparatus

C072S306000, C072S149000, C072S151000

Reexamination Certificate

active

07021107

ABSTRACT:
A bending processor for a pipe has a pipe bending unit and a pipe twisting unit. The pipe bending unit is rotated by a predetermined angle while pressing the processed pipe against the circumferential face of a bending die, and performs the bending processing. The pipe bending unit may be movable in the longitudinal direction of the processed pipe or may be fixed. The pipe twisting unit is freely rotated by a predetermined angle with the center of the processed pipe as an axis. The pipe bending unit has a tensile bending function and a compression bending function.

REFERENCES:
patent: 5765426 (1998-06-01), Saegusa
patent: 5873278 (1999-02-01), Saegusa
patent: 6434995 (2002-08-01), Kataoka et al.
patent: 6591655 (2003-07-01), Scheerschmidt
patent: 7-232219 (1995-09-01), None
patent: 8-29358 (1996-03-01), None
patent: 9-29346 (1997-02-01), None
patent: 9-308918 (1997-12-01), None
patent: 10-211524 (1998-08-01), None

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