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:
Sep. 30, 1980
Filed:
May. 09, 1979
Applicant:
Inventors:
John R Dahlberg, Jeannette, PA (US);
Robert P DeTorre, Pittsburgh, PA (US);
Assignee:
PPG Industries, Inc., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03B / ;
U.S. Cl.
CPC ...
225-2 ; 225 965 ;
Abstract
Intersecting first and second scores in a glass sheet are simultaneously opened by imposing deeper first scores in the glass sheet than second scores. A bending moment force applied to a second score opens the second score and the resulting shock from opening the second score opens portions of the intersecting first scores.