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:
Oct. 10, 2006
Filed:
Jul. 16, 2002
Applicants:
Bernd Kruska, Berlin, DE;
Kai Steinfeld, Berlin, DE;
Inventors:
Bernd Kruska, Berlin, DE;
Kai Steinfeld, Berlin, DE;
Assignee:
Siemens Aktiengesellschaft, München, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H 3/20 (2006.01); H02H 9/04 (2006.01); H02H 1/00 (2006.01); H02H 1/04 (2006.01); H02H 3/22 (2006.01); H02H 9/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a surge voltage protector () which comprises a discharge current path with at least one varistor block (). In order to prevent the varistor blocks () from bursting when an inner error is produced and an electric arc connected thereto is created, a coating () is applied in the region of the outer covering area of at least one varistor block (), said coating being made of a substance which triggers an electric flashover when a critical temperature of the varistor blocks () is exceeded.