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:
Feb. 16, 2010
Filed:
Feb. 19, 2003
Daniel Chaleix, Roupelange, FR;
Patrick Choquet, Longeville les Metz, FR;
Gérard Baravian, Limours, FR;
Bernard Lacour, Saint Michel sur Orge, FR;
Vincent Puech, Boulogne Billancourt, FR;
Daniel Chaleix, Roupelange, FR;
Patrick Choquet, Longeville les Metz, FR;
Gérard Baravian, Limours, FR;
Bernard Lacour, Saint Michel sur Orge, FR;
Vincent Puech, Boulogne Billancourt, FR;
USINOR, Puteaux, FR;
Abstract
A method for the continuous cleaning of the surface of a material () which is coated with an organic substance. Steps of the method are: introducing the material () into a treatment area which is supplied with a gas stream containing oxygen; earthing the material (); and generating a plasma by imposing an electric field between the surface of the material () and at least one dielectric-covered electrode (), the electric field being pulsed and providing a succession of positive and negative voltage pulses in relation to the material (). Moreover, the maximum voltage of the positive pulses U+ is greater than the arc-striking voltage Ua, and the maximum absolute value of the voltage of the negative pulses U− is less than the striking voltage Ua. Also, a generator and a device which are used to carry out this method.