Pipe bending apparatus

Details Pipe bending apparatus Pipe bending apparatus

2006-05-23

2006-05-23

Jones, David B. (Department: 3725)

Metal deforming

By relatively movable offset tool-faces

Embodying three or more coacting relatively movable tools

C072S389100, C072S389800, C072S389600, C072S390200

Reexamination Certificate

active

07047789

ABSTRACT:
An improved pipe bending apparatus comprising a plurality of belts supporting the minor radius of the bend. The belts cannot support stresses sufficient to allow concentrated stress to cause the pipe walls to collapse. The belts are affixed to a framework that forces the belts into the sides of the pipe, thereby providing support to maintain ovality of the pipe cross-section.

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