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. 12, 1995
Filed:
Oct. 22, 1993
Jurgen Boy, Berlin, DE;
Siemens Aktiengesellschaft, Munchen, DE;
Abstract
In order to guarantee that the gas atmosphere of the structure of an encapsulated spark gap (9) is reliably protected from the effect of moisture, two flat discharge surfaces of two dish-type electrodes (1,6), each designed with a collar-shaped rim (2), abut on both sides of a thin insulating layer (4) having punched holes. A tubular glass insulator (3) is sealed on the front side into the collar-shaped rims of the two electrodes. During the course of their manufacturing, the electrodes are placed with their collar-shaped rim on the front sides of the glass insulator, are inductively heated and, under the action of an axially directed pressing force, are driven toward one another and pressed against the insulating layer. A spark gap of this type can be used as a secondary discharge gap for triple-electrode arresters.