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. 07, 2010
Filed:
Feb. 25, 2003
Paul Jallon, Bordeaux, FR;
Michel Rigaudon, Caromb, FR;
Jean Louis Laurent, Bayas, FR;
Jean Paul Solomut, Izon, FR;
Paul Jallon, Bordeaux, FR;
Michel Rigaudon, Caromb, FR;
Jean Louis Laurent, Bayas, FR;
Jean Paul Solomut, Izon, FR;
Lafarge Platres, Avignon Cedex, FR;
Abstract
The invention relates to a method of manufacturing sheets based on hydraulic binder, particularly sheets of plasterboard with feathered edges. The method comprises the steps of (I) making a mark () on a facing (or) of the preform (), (II) detecting the mark (), and (III) sending an actuating signal to a device () for cutting the preform (). The invention also relates to a production line for producing such sheets, and to an apparatus, particularly for making an impression () in a preform (). The apparatus comprises a frame (), first () and second () pulleys, two belts () wrapped around the pulleys (), and at least one wire () extending between these belts () so that its axis is parallel to the axis of the pulleys ().