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:
Aug. 02, 2011
Filed:
Feb. 09, 2007
Alexandre Potier, Gennevillers, FR;
Alexandre Potier, Gennevillers, FR;
Carbone Lorraine Composants, Gennevilliers, FR;
Abstract
The present invention relates generally to a composite plate produced by an alternating stack of (n+1) flexible graphite foils and (n) perforated metal reinforcing foils with spurs (where n≧2). The thicknesses of the flexible graphite foils used are preferably such that any 2 mm slice of thickness of the composite plate comprises at least 3 layers of flexible graphite, and has a graphite density per unit area of at least 2.34 kg/m. For each perforated metal reinforcing foil, the spurs present on the foil generally have a height in relation to the surface of that foil that does not exceed about 1.3 times the thickness of the thinnest of the flexible graphite layers to which it is attached. A composite plate of the present invention enables the manufacture of gaskets that resist temperatures up to 550° C. under continuous service.