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. 08, 2013
Filed:
Aug. 18, 2010
Joerg Hinrich Fechner, Weiden, DE;
Christof Kass, Tirschenreuth, DE;
Joerg Hinrich Fechner, Weiden, DE;
Christof Kass, Tirschenreuth, DE;
Schott AG, Mainz, DE;
Abstract
The glass of the glass-metal bond contains the following ingredients in the following amounts: SiO, 72-80 wt %; BO, 4-<6 wt %; AlO, 2-5 wt %; NaO, 4-7 wt %; KO, 0-3 wt %; CaO, 2.5-8 wt %; MgO, 0-2 wt %; BaO, 0-4 wt %; TiO, 0-5 wt %; CeO, 0-2 wt %; FeO, 0-0.1 wt %; F, 0-2 wt %; and the ratio of the sum total amount of AlOand BO(in mol %) to the sum total amount of MgO, CaO and BaO (in mol %) in the glass is less than 5. The glass-metal bond advantageously includes a KOVAR® alloy and the glass of the aforesaid composition and connects the glass envelope tube with an inner metal absorber tube in a tube collector.