Roll forming press

Details Roll forming press Roll forming press

2011-07-26

2011-07-26

Sullivan, Debra M (Department: 3725)

Metal deforming

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

By use of deflector arranged to bend work transversely of...

C072S011500, C072S176000

Reexamination Certificate

active

07984633

ABSTRACT:
A method of roll forming a metal plate with a desired bend. The method includes a first step of providing a roll press having at least a first and second set of bending rollers; a second step of positioning a lead end of the metal plate past the first set of bending rollers prior to the first set of bending rollers applying a bending force to the metal plate; a third step of applying a bending force with the first set of bending rollers to the metal plate at a point behind the lead end; and a fourth step of moving the lead end of the metal plate past the second set of bending rollers prior to the second set of bending rollers applying a bending force.

REFERENCES:
patent: 2003/0000271 (2003-01-01), Patty et al.
patent: 2006/0272376 (2006-12-01), Green et al.
The attached is a brochure illustrating convention roll forming machinery which was in public use in the United States prior to Nov. 28, 2005.

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