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:
Mar. 16, 1993
Filed:
Sep. 11, 1991
Applicant:
Inventors:
Robert E Trevelyan, Lancashire, GB;
Peter J Whitfield, Merseyside, GB;
Assignee:
Pilkington plc, Merseyside, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03B / ; C03B / ;
U.S. Cl.
CPC ...
65 29 ; 65135 ; 65136 ; 65162 ;
Abstract
A glass melting tank has a melting chamber, a shallow uniflow conditioning chamber, a shallow refining chamber and a riser chamber between the melting chamber and refining chamber. Heat is input to glass in the riser chamber by electrodes located centrally in the riser chamber near the base of the riser chamber. Temperature sensors sense the temperature entering the riser chamber through a throat and near the base of a downstream wall of the riser chamber and the heat input is controlled to produce torroidal flow in the riser chamber.