Portable electrical conduit pipe bending system

Details Portable electrical conduit pipe bending system Portable electrical conduit pipe bending system

2006-04-11

2006-04-11

Suhol, Dmitry (Department: 3725)

Metal deforming

By use of roller or roller-like tool-element

Comprising tool movable relative to stationary work-portion...

C072S388000

Reexamination Certificate

active

07024905

ABSTRACT:
A pipe bending system for bending a length of pipe, using a pair of bending assemblies, each bending assembly having a hub having a central shaft having an outer circumference and a central shaft, and a roller assembly mounted for orbital movement around the outer circumference under the power of a motor. The roller assembly has a roller whereby the length of pipe is placed between the roller and outer circumference. When the roller assembly is moved around the hub, the pipe is bent to follow the outer circumference. The bending assemblies are mounted in proximity to each other to create complex bends in the pipe.

REFERENCES:
patent: 1462315 (1923-07-01), Akey et al.
patent: 1546147 (1925-07-01), Skinner
patent: 1769570 (1930-07-01), Groehn et al.
patent: 1816218 (1931-07-01), Henry et al.
patent: 4052875 (1977-10-01), Sakamoto
patent: 4249407 (1981-02-01), Fogleman
patent: 4355528 (1982-10-01), Rothenberger
patent: 5203192 (1993-04-01), Kimura
patent: 5588322 (1996-12-01), Passone

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