Pipe bending machine

Details Pipe bending machine Pipe bending machine

2006-08-01

2006-08-01

Keith, Jack (Department: 3663)

Metal deforming

By deflecting successively-presented portions of work during...

By use of work-contacting wiper and moving, work-holding form

C072S149000, C072S157000

Reexamination Certificate

active

07082798

ABSTRACT:
A pipe bending machine (1) includes a bending tool (3), a pipe feed unit (9) and a mandrel retractor (19). A pipe holder (8) of the pipe feed unit (9) and a mandrel bar support (24) of the mandrel retractor (19) are guided in the longitudinal pipe direction (12) by a common linear guide system (16) on the machine base. Alternatively or in addition thereto the pipe holder (8) and the mandrel bar support (24) can be moved in the longitudinal pipe direction (12) by a common drive system (15) on the machine base.

REFERENCES:
patent: 4625531 (1986-12-01), Lafrasse et al.
patent: 5481891 (1996-01-01), Sabine
patent: 6155091 (2000-12-01), Hayes et al.
patent: 6345525 (2002-02-01), Bruyas et al.
patent: 4010 445 (1991-09-01), None
patent: WO 87/00096 (1987-01-01), None

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