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:
Apr. 01, 2003
Filed:
Apr. 10, 2001
Hans Schellekens, La Terrasse, FR;
Denis Giraud, Gieres, FR;
Serge Olive, Saint Paul de Varces, FR;
Christophe Arnaud, Vif, FR;
Abstract
A vacuum cartridge, in particular for an electrical protection apparatus such as a switch or circuit breaker, comprising an enclosure of appreciably cylindrical shape closed by two end-plates, two contacts extending axially inside the enclosure, at least one of which contacts called the movable contact is connected to an operating mechanism and is slidingly mounted between a closed position of the contacts corresponding to a rest position of the apparatus and a position in which the arcing contacts are separated and form an electric arc between them, separation of the contacts resulting in breaking of the electrical circuit, and a means for producing an axial magnetic field for diffusion of the arc in the arc formation area. The cartridge comprises means for speeding up cooling of the contact material in liquid form flowing on the contact surface of said arcing contacts during breaking.