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:
Apr. 19, 2005
Filed:
Jun. 30, 2004
Applicants:
Jukka Vehmas, Tampere, FI;
Jorma Valkama, Tampere, FI;
Inventors:
Jukka Vehmas, Tampere, FI;
Jorma Valkama, Tampere, FI;
Assignee:
Uniglass Engineering Oy, Tampere, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F27B009/10 ; F27B009/36 ; C03B027/044 ;
U.S. Cl.
CPC ...
Abstract
A method and apparatus for heating glass, in which glass () is heated upon rollers () in a tempering furnace () from above and below of the glass (). At least the upper surface of the glass () is heated with hot air jets directed substantially perpendicularly relative to the surface of the glass (). The air jets have been provided by sucking air mainly from the inside of the furnace and by pressurizing the air taken from the inside of the tempering furnace () to an overpressure of over 0.1 bar relative to the pressure in the tempering furnace ().