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:
Jul. 19, 2011
Filed:
Jun. 29, 2005
Lars Jonsson, Västerås, SE;
Tommy Larsson, Ludvika, SE;
Petter Nilsson, Ludvika, SE;
Stefan Valdemarsson, Lidköping, SE;
Lars Jonsson, Västerås, SE;
Tommy Larsson, Ludvika, SE;
Petter Nilsson, Ludvika, SE;
Stefan Valdemarsson, Lidköping, SE;
ABB Research Ltd., Zürich, CH;
Abstract
A diverter switch with an operating member and an electric circuit. The electric circuit has a main branch and a resistance branch connected in parallel with the main branch. Each branch includes a contact and a vacuum switch. The resistance branch also includes a resistance. The main rotary selector contact is always operated before the resistance contact. The operating member is arranged, during operation, always to rotate the main contact in one and the same direction of rotation. Also a corresponding method for operating a diverter switch and use of such a switch.