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. 27, 1998
Filed:
Jan. 21, 1997
Kenneth Melvin Fyles, Lancashire, GB;
Helen Louise Eaves, Cheshire, GB;
Thomas Gordon Cochrane, Lancashire, GB;
Pilkington PLC, St. Helens, GB;
Abstract
A method of making glass in which a first glass composition is fed to a furnace and the densities of such glass is determined. The composition is then changed to produce a second glass which has substantially different properties from the first glass, the change to the composition being such that the desired properties are produced in the second glass while simultaneously maintaining the densities of the second glass substantially equal to that of the second glass. The first glass may be a clear glass while the second glass may be a tinted glass. In such a case, the tinted glass may contain iron and the densities are maintained substantially equal by utilizing the iron to replace calcium oxide in the clear glass composition.