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.

Date of Patent:
May. 30, 2000

Filed:

Apr. 21, 1998
Applicant:
Inventors:

Kai Silander, Tampere, FI;

Esko Lehto, Kangasala, FI;

Assignee:

Tamglass Ltd. Oy, Tampere, FI;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03B / ; C03B / ;
U.S. Cl.
CPC ...
65114 ; 65119 ; 65348 ;
Abstract

The invention relates to a process for the heat-soak treatment of tempered glass panels. After tempering, the glass is heated or cooling of the glass is stopped for maintaining the temperature for the duration of e.g. a good minute within the range of 340-370.degree. C., such that the glasses, which break spontaneously in time as a result of NiS-stones, can be broken already in a so-called heat-soak treatment. During the heating sequence or the cooling stop sequence and during the subsequent cooling sequence, the glass panel is carried in a horizontal plane, e.g. back and forth on rollers in an oscillating fashion. The process is a continuous-action process and the apparatus for implementing the same can be hooked up with a tempering machine for an on-line operation.


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