The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 16, 1997
Filed:
Jan. 31, 1995
Marc Bonnefont, Saint-Chamond, FR;
Zalman Padwo, Saint-Etienne, FR;
Jean-Baptiste Peyron, Saint-Etienne, FR;
Paul Sabatier, Cellileu, FR;
CLECIM, Cergy-Pontoise, FR;
Abstract
A process for planishing under traction a thin metal strip in an installation including a planisher comprising at least one bending unit with two planishing sets and a multi-roller leveling assembly comprising two rows of rollers. The imbrication of the planishing sets and the multi-roller leveling assembly and two tension blocks, respectively, are adjusted upside and downside to obtain a prescribed elongation of the strip. Flatness faults in the planisher are corrected by adjusting the through-speeds and imbrication of the planishing sets, such that the prescribed elongation for planishing is substantially attained by the time the strip leaves the planisher. At least longitudinal camber faults due to the passage in the planisher are corrected in the multi-roller assembly by setting up degressive imbrications of the rollers between the input and output of the multi-roller assembly by swinging one row with respect to the other so as to cause progressively diminishing reverse bending effects without substantially increasing the elongation already produced in the planisher by traction-bending.