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. 17, 1982
Filed:
Oct. 06, 1980
Applicant:
Inventors:
Sheldon A Canfield, Newark, OH (US);
Paul S Sanik, Westerville, OH (US);
Assignee:
Owens-Corning Fiberglas Corporation, Toledo, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
C03B / ;
U.S. Cl.
CPC ...
373 27 ; 65161 ; 7329 / ;
Abstract
A method of and apparatus for detecting the level of molten glass in a glass melting furnace comprising transmitting an electromagnetic wave towards the surface of the molten glass, detecting the electromagnetic wave reflected from the surface of the molten glass, determining the amount of time elapsed from the transmission of the electromagnetic wave to the detection of the reflected electromagnetic wave, and generating a signal responsive to the amount of elapsed time as an indication of the level of molten glass in the furnace.