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:
Jan. 05, 2010
Filed:
Jan. 20, 2005
Eric Courbon, Arpajon, FR;
Jean-pierre Dupraz, Bressolles, FR;
Serge Poullain, Arpajon, FR;
Sylvain Plante, Québec, CA;
Jean-luc Thomas, Fontainebleau, FR;
Ernst Suter, Kölliken, CH;
Robert Luscher, Seon, CH;
Eric Courbon, Arpajon, FR;
Jean-Pierre Dupraz, Bressolles, FR;
Serge Poullain, Arpajon, FR;
Sylvain Plante, Québec, CA;
Jean-Luc Thomas, Fontainebleau, FR;
Ernst Suter, Kölliken, CH;
Robert Luscher, Seon, CH;
Areva T&D SA, Paris-la-Defense, FR;
Abstract
A device for controlling a circuit-breaker intended for opening and closing this electric power cut-off device comprising a mobile contact, this control device comprising a motor with a rotary output shaft and being connected to power supply means and actuating means transforming the output displacement of the motor into a displacement of the contact, this device also comprising a mechanical spring arrangement involved in opening and closing the contact. The actuation means include a set of jointed elements providing the connection of the rotary shaft and of the ring, and, in the closed position of the contact, the set of jointed elements is near a dead centre position, a so-called open dead centre, the opening spring being only able to drive it towards the open position upon moving past this dead centre during opening.