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:
Jun. 01, 2004
Filed:
Dec. 20, 2000
Applicant:
Inventors:
Ralf Bergmann, Berlin, DE;
Volker Lehmann, Treuenbrietzen, DE;
Hold Dienemann, Berlin, DE;
Heiner Marin, Berlin, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 3/388 ;
U.S. Cl.
CPC ...
H01H 3/388 ;
Abstract
In a high-voltage circuit breaker having two arcing contacts arranged coaxially relative to one another and having an insulating nozzle which in the closed state is blocked by a first arcing contact the first arcing contact has a shaft having a greater diameter and an end element having a smaller diameter, the shaft blocking a through-channel of the insulating body. The through-channel is cylindrical along a length that is smaller than the length of the end element. As a result, the extinguishing gas starts to flow when the end element is pulled back into the through-channel.