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. 28, 2005
Filed:
Dec. 18, 2001
Carlo Gemme, Genova Quinto, IT;
Andrea Moratto, Milan, IT;
Roberto Borlotti, Bagnatica, IT;
Osvaldo Prestini, Nembro, IT;
Carlo Gemme, Genova Quinto, IT;
Andrea Moratto, Milan, IT;
Roberto Borlotti, Bagnatica, IT;
Osvaldo Prestini, Nembro, IT;
ABB Technology AG, Zurich, CH;
Abstract
A medium voltage switching device includes an electromagnetic actuation chain and a power supply which provides electric power to the electromagnetic actuation chain. The power supply includes at least a first power supply device which is electrically connected to a medium voltage power distribution line, so as to drain electric power directly from the distribution line, and a second circuit configured to store at least the electric energy drained from the medium voltage power distribution line, and to thereby provide the electromagnetic actuation chain with electric power.