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. 23, 1990
Filed:
Feb. 03, 1988
Applicant:
Inventors:
Ingo Duenisch, Taunusstein, DE;
Dieter Eierle-Tschirner, Wiesbaden, DE;
Assignee:
Heimann GmbH, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ; H01J / ;
U.S. Cl.
CPC ...
313610 ; 313634 ; 313636 ;
Abstract
A flashbulb wherein short radii curvatures are allowed for a curved plasma channel without overloading the walls, so that a high luminance is obtained. The discharge space (9) between two electrodes (4, 5) is annularly formed. The outside wall (1) forms a closed hollow cylinder of glass. The outside wall (1) forms a closed hollow cylinder of glass. The inside walls (7, 8) are composed of white ceramic material which is hermetically fused to the glass.