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:
Sep. 22, 1998
Filed:
Aug. 29, 1996
Applicant:
Inventors:
Juergen Heider, Munich, DE;
Stefan Juengst, Zorneding, DE;
Koichiro Maekawa, Ichinomiya, JP;
Osamu Asano, Hashima, JP;
Assignees:
Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen mbH, Munich, DE;
NGK Insulators, Ltd., Nagoya, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
445 26 ; 445 43 ; 445 40 ;
Abstract
A ceramic discharge vessel (8) for a high-pressure discharge lamp has a pin-like feedthrough (10) inserted in a plug (11) made from a composite material. The feedthrough (10) has been sintered directly into the plug (11) and is additionally sealed by covering the area, surrounding the feedthrough, of the plug's surface facing away from the discharge volume with a ceramic sealing material (7a).