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:
Nov. 07, 2006
Filed:
Sep. 20, 2004
Daniel Coelho, Jouy-le-Mouttier, FR;
Jean-pascal Dumont-monnet, Conflans, FR;
Pierre Ripoche, Pithiviers, FR;
Daniel Coelho, Jouy-le-Mouttier, FR;
Jean-Pascal Dumont-Monnet, Conflans, FR;
Pierre Ripoche, Pithiviers, FR;
Alcatel, Paris, FR;
Abstract
The invention relates to an inductive thermal plasma torch comprising a confinement tube that comprises, longitudinally in relation to the tube, metal fingers which are insulated from each other, an ignition device that comprises an igniter () and an igniter support (), the purpose of the igniter () being to initiate a discharge in the plasma of the torch, the support having an electrically conductive end () which is connected to the electrical earth () of the plant and another, electrically insulating, end () which carries the igniter, the ignition device also comprising an electrically conductive connection () connecting the igniter () to the electrically conductive end () of the support so that the igniter is able to initiate the discharge in the plasma, the electrically conductive connection () having a section that is sufficiently narrow to limit the intensity of the current capable of passing through the igniter () in order to avoid electrical arcing by capacitive discharge between the ignition device and another part of the torch.