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:
Nov. 06, 1984
Filed:
Feb. 24, 1982
Applicant:
Inventor:
Hugh E Shaw, Jr, Crystal City, MO (US);
Assignee:
PPG Industries, Inc., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
356364 ; 65158 ;
Abstract
Monitoring of the glass ribbon edge location in a float glass forming chamber is expedited by enhancing contrast between the glass and the molten metal on which it floats by viewing emitted radiation through a horizontal polarizing filter from adjacent areas of the glass and metal in a region shaded from reflected light.