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:
Jul. 06, 1993
Filed:
Sep. 19, 1991
Pierre De Gelis, Saint Germain En Laye, FR;
Joelle Pontet, Gueugnon, FR;
Gerard Piet, Bezons, FR;
Gerard Pacqueau, Toulon Sur Approux, FR;
Ugine S. A., Paris, FR;
Abstract
A device for low-temperature plasma surface treatment of a stationary metallic material (8) in plate or sheet form, comprising a sealed enclosure (1) into which a plasma-forming gas is introduced, and a suction device (6) for adjusting the pressure of the gas. The enclosure (1) incorporates a support (7) in contact with the material (8) and at least one fixed or movable electrode (10) having an 'active' surface (13) facing the material (8) and defining a space (12) between itself and the surface (9) of the material. The electrode (10) is held at an adjustable distance between its active surface and the surface of the material. A potential difference of given sign and given absolute value is created between the material (8) and the electrode (10), and a low-temperature plasma is generated in the space (12).