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:
Nov. 01, 1983
Filed:
Dec. 06, 1982
Applicant:
Inventor:
Arun Prasad, Cheshire, CT (US);
Assignee:
Jeneric Industries, Inc., Wallingford, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22C / ;
U.S. Cl.
CPC ...
420463 ; 433200 ; 433207 ;
Abstract
A dental alloy for use in porcelain-fused-to-metal restorations including palladium, cobalt, indium, tin, aluminum and rhenium. The aluminum protects the alloy during torch melting and during the porcelain firing process through the formation of a protective oxide. The rhenium provides grain refining for the alloy to increase its elongation, tensile strength, and thus toughness. The alloy must be made under vacuum or in an inert atmosphere to avoid the formation of bubbles in the porcelain during the porcelain firing process.