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:
Feb. 21, 1984
Filed:
May. 10, 1982
Applicant:
Inventor:
Charles S Dunn, Pataskala, OH (US);
Assignee:
Owens-Corning Fiberglas Corporation, Toledo, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
C03B / ; F27D / ;
U.S. Cl.
CPC ...
373 39 ; 65160 ; 340620 ;
Abstract
A method and apparatus for determining the level of slag containing iron or iron compounds in the bottom of a glass melting furnace is disclosed. Electrically conductive electrodes or probes are placed in a predetermined position in the furnace. When the iron containing slag touches the electrodes or probes, the resistance between the electrodes or probes decreases or the current flowing between them increases activating a signal or alarm to warn the operator of the level of the slag in the furnace.