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:
Feb. 13, 1990
Filed:
Feb. 25, 1988
Henri Mairlot, Acoz, BE;
Glaceries De Saint - Roch S.A., Sambreville, BE;
Abstract
A thermally-tempered, cold curved panel having a sheet of glass, including a resiliently-flexed curvature, and a frame which is adapted to maintain the curvature of the sheet of glass under constraint, as well as a method and a device for producing the curved panel, is disclosed. The frame of the panel includes straight frame sections and curved frame sections which are secured to the sheet of glass, retaining the curvature of the sheet of glass under constraint. The sheet of glass is thermally-tempered being cold-curved at a temperature being between 80.degree. C. and 140.degree. C., such that a resiliently-flexed curvature is formed therein. The curvature is maintained under constraint by a special device while the frame is assembled about the edges of the glass. Once assembled, the frame maintains the curvature of the thermally-tempered sheet of glass under constraint. The device which permits curving is a template having an upper curving surface having substantially the same curvature as that desired for the final product. Suction discs, carried by jacks are secured to parts of the glass not contacting the curving surface. Movement of the jacks with the suction discs carried thereon provide the force for the curving operation.