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:
Oct. 21, 1980
Filed:
May. 21, 1979
Applicant:
Inventor:
Samuel L Seymour, Oakmont, PA (US);
Assignee:
PPG Industries, Inc., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03B / ;
U.S. Cl.
CPC ...
65106 ; 65104 ; 65107 ; 65268 ; 65273 ;
Abstract
In a drop forming process for shaping glass sheets, wherein a glass sheet is dropped from a flat vacuum platen onto a shaping mold, the final curvature of the glass is controlled by releasing a portion of the glass sheet from the platen prior to releasing the remainder of the glass sheet.