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:
Sep. 15, 1981
Filed:
Sep. 13, 1978
Applicant:
Inventor:
Francis L Orso, Corning, NY (US);
Assignee:
Corning Glass Works, Corning, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ;
U.S. Cl.
CPC ...
1062865 ; 1062861 ; 1062867 ; 1062868 ; 10628726 ; 10628734 ; 252512 ; 75252 ; 501-7 ;
Abstract
The method of providing a mechanically strong, hermetic seal, for sealing glass-ceramic articles particularly MACOR.RTM. brand machinable glass-ceramics, which seal is capable of withstanding heating in a vacuum to a temperature of up to 900.degree. C. without foaming. The forming of the seal comprises reacting from 0.5-3.0 wt.% antimony metal powder with a devitrifiable glass frit having a coefficient of thermal expansion compatible with the materials being sealed and a melting point of >930.degree. C.