Sheet-bending press for making pipe

Details Sheet-bending press for making pipe Sheet-bending press for making pipe

2011-01-04

2011-01-04

Bonk, Teresa M (Department: 3725)

Metal deforming

By tool-couple pressing together adjacent surface portions...

To form longitudinally-seamed tube

C072S308000, C072S369000, C072S389800

Reexamination Certificate

active

07861566

ABSTRACT:
A bending press for making tubing from a substantially planar and longitudinally extending metal sheet has a support extending transversely generally parallel to the sheet vertically offset from the sheet, and a bender at one of the edges of the sheet and slidable transversely generally parallel to the sheet on the support. The bender has a pair of bending tools, a tie rod extending transversely in the direction adjacent the pair of tools, and an actuator braced transversely in the direction between the tie rod and the tools and extensible in the direction to tension the rod and press the tools against opposite faces of the sheets at the one edge to deform the one edge. A clamp is engageable between the bender and the support for releasably locking the bender to the support at any of a plurality of positions offset transversely therealong generally parallel to the sheet.

REFERENCES:
patent: 3635064 (1972-01-01), Chang
patent: 3677057 (1972-07-01), MacKenzie
patent: 3911706 (1975-10-01), Davis
patent: 6494360 (2002-12-01), Flehmig
patent: 2701207 (1978-03-01), None
patent: 5031534 (1993-02-01), None

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