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:
May. 11, 1982
Filed:
Nov. 05, 1979
Georges Bernard, Saint-Egreve, FR;
Pierre Leclercq, Moirans, FR;
Merlin Gerin, Grenoble, FR;
Abstract
An alternating current interrupter is contained in a sealed elongated housing filled with dielectric gas, such as SF6. The interrupter comprises a pair of separable stationary and movable contacts and a magnetic blow-out arc extinguishing device including an annular coil disposed coaxially with a first ring-shaped electrode which surrounds the stationary contact. The coil produces a radial magnetic field in the arcing zone causing the arc to rotate rapidly along the first electrode which is secured to the inner edge of the coil's front face in order to reduce the electrodynamic repulsion forces between said coil and electrode. A metallic shield is disposed between the arcing zone and the outer portion of the front face which is not covered by the first electrode.