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:
May. 04, 2010
Filed:
Dec. 21, 2007
Thomas J. Patrician, Monroeton, PA (US);
Thomas J. Patrician, Monroeton, PA (US);
OSRAM Sylvania Inc., Danvers, MA (US);
Abstract
A ceramic discharge vessel is described that is provided a feedthrough comprised of a molybdenum alloy containing at least 75 weight percent molybdenum and greater than 5 weight percent of nickel and at least one other alloying metal selected from copper and iron, wherein the weight ratio of the amount of nickel to the combined amount of copper and iron, Ni:(Fe,Cu), in the alloy is in the range of 1:1 to 9:1. The thermal expansion coefficient of the alloy is sufficiently matched to that of the ceramic so that the feedthrough may be sealed to the discharge vessel without causing cracking. Preferably, the feedthrough is directly sealed to the ceramic discharge vessel without the use of an intermediate frit material.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile