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:
Aug. 20, 1991
Filed:
Oct. 01, 1990
Jack A Bricker, Tarentum, PA (US);
Earl L May, Irwin, PA (US);
PPG Industries, Inc., Pittsburgh, PA (US);
Abstract
Flame seaming a glass sheet of irregular outline using a ring-type burner having an apertured inner wall aligned with the central portion of the glass sheet edge develops an edge of more uniform appearance when the application of a fuel mixture to a portion of said apertured wall facing the glass edge is different for curved portions of the wall facing curved portions of the glass sheet outline than to straight line portions of the wall facing straight portions of the glass sheet outline. Further reduction of non-uniformity of glass edge appearance may result from providing orbital motion between said glass sheet outline and an apertured inner wall of said ring-type burner.