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:
Jul. 21, 2009
Filed:
Feb. 15, 2005
Thomas Kuckelkorn, Weiden, DE;
Guenter Bauer, Tirschenreuth, DE;
Nikolaus Benz, Weiden, DE;
Fritz-dieter Doenitz, Schirmitz, DE;
Reinhard Maennl, Mitterteich, DE;
Matthias Mueller, Mitterteich, DE;
Michael Siller, Leonberg, DE;
Thomas Kuckelkorn, Weiden, DE;
Guenter Bauer, Tirschenreuth, DE;
Nikolaus Benz, Weiden, DE;
Fritz-Dieter Doenitz, Schirmitz, DE;
Reinhard Maennl, Mitterteich, DE;
Matthias Mueller, Mitterteich, DE;
Michael Siller, Leonberg, DE;
Schott AG, Mainz, DE;
Abstract
The method of making a vacuum tube collector or X-ray tube, which includes a matching glass-metal joint, includes providing a glass tube () made of a glass with a composition, in percent by weight on the basis of oxide content, consisting of BO, 8-11.5; AlO, 5-9; NaO, 5-9; KO, 0-5; CaO, 0.4-1.5; balance, SiO; and bonding, preferably fusing or melting, an end portion of the glass tube () with a metal part () in order to bond or attach the glass tube to the metal part, thus forming a long-lasting glass-metal joint. The method of making the glass-metal joint is performed without using intermediary glass compositions of varying thermal conductivities. In the case of the vacuum tube collector the method can provide the basis for an automated manufacture of the vacuum tube collector.