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:
Jan. 07, 2003
Filed:
Oct. 27, 2000
Applicant:
Inventors:
Richard L. Hansen, Mentor, OH (US);
Frederic F. Ahlgren, Richmond Heights, OH (US);
Robert A. Giddings, Slingerlands, NY (US);
Assignee:
General Electric Company, Pittsfield, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03B 1/900 ;
U.S. Cl.
CPC ...
C03B 1/900 ;
Abstract
A method for quartz crucible formation wherein an at least substantially enclosed chamber surrounds a crucible mold. The atmosphere in the chamber is controlled to include a desired gas or combination of gases at a positive pressure. The positive pressure is achieved because the total outflow of gas is less than the total inflow of gas. A heat source is initiated to melt a quartz material lining the mold once the desired atmosphere is achieved, and the quartz material is fused.