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:
May. 16, 2000
Filed:
Feb. 18, 1999
Didier Muller, Morteau, FR;
Olivier Muller, La Chaux-de-Fonds, CH;
Volker Thiessen, La Chaux-de-Fonds, CH;
Tamglass LTD Oy, Tampere, FI;
Abstract
The invention relates to a method and apparatus for the localization or focusing of heating in a tempering furnace for glass panels. Glass panels are carried and supported in a furnace (2) by rollers (11). The furnace is provided with upper and lower nozzle boxes (4, 14), including nozzle heads (5, 15) for blasting hot convection air to heat the glass panels to a tempering temperature. The arrival of a load in the furnace is preceded by reading a load picture and by controlling radiation heat resistances (10) present in the furnace in such a way that radiation heating can be focused on the central areas of critical glass panels to provide extra heating therefor.