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:
Aug. 14, 2001
Filed:
Oct. 14, 1997
Robert E. Naugler, Arvada, CO (US);
Frank E. Anderson, Golden, CO (US);
Coors Ceramics Company, Golden, CO (US);
Abstract
A hermetic glass-to-metal seal between a conductive pin and an outer body, wherein a corrosion-resistant noble metal (e.g., gold) coating is applied to the conductive pin before the hermetic seal is formed. The noble metal-coated conductive pin is located in glass having a softening point less than about 650° C. and disposed in a cavity of the outer body. This is accomplished by inserting the coated conductive pin into a bore in a glass preform, heating the assembly to a temperature in excess of the softening point of the glass but less than about 700° C., and cooling the assembly. The coefficients of thermal expansion of the components of the assembly are preferably selected such that the resulting assembly is a hermetic compression seal.