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. 26, 1993
Filed:
Jul. 08, 1992
Applicant:
Inventors:
Paul S Danielson, Corning, NY (US);
Sheryl L Hultman, Corning, NY (US);
Assignee:
Corning Incorporated, Corning, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C / ; C03C / ;
U.S. Cl.
CPC ...
501 17 ; 501-4 ; 501 29 ; 106600 ; 106608 ; 65 33 ;
Abstract
A non-melted, non-powder concentrated colorant material consists essentially of a flux that is not over 30% by weight of an alkali metal borate, a binder that is an alkali metal silicate and 35-60% V.sub.2 O.sub.5. The flux, binder and colorant oxide constitute at least 90% of the composition. A method of producing a black glass-ceramic material comprises forming the colorant material into particles and adding the particles to a precursor glass for the glass-ceramic while the glass is passing through the forehearth of a glass tank in a molten state.