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:
Mar. 22, 2005
Filed:
Jul. 20, 2001
Dirk Hauer, Nordenham-Ellwürden, DE;
Georg Geissler, Huenstetten-Wallrabenstein, DE;
Bernd Hoetzel, Woerrstadt, DE;
Thomas Lüttgens, Mainz, DE;
Dirk Hauer, Nordenham-Ellwürden, DE;
Georg Geissler, Huenstetten-Wallrabenstein, DE;
Bernd Hoetzel, Woerrstadt, DE;
Thomas Lüttgens, Mainz, DE;
Schott Glas, Mainz, DE;
Abstract
The cutting of the flat glass plate () into rectangular plates with a predetermined edge length is performed by forming initial cracks at the beginning of cutting lines on the glass plate and moving a laser beam along the cutting lines followed by a cooling spot to induce a thermo-mechanical stress alone the cutting lines. First the glass plate () is cut apart into partial plates () along first parallel cutting lines spaced according to the predetermined edge length. Then the cut apart glass plate is rotated by 90° and the partial plates () are moved apart from each other. Subsequently the partial plates that have been moved apart are cut apart alone several parallel second cuts () perpendicular to the first cuts. This method facilitates exact placement of the initial cracks.