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:
Mar. 27, 1990
Filed:
Oct. 19, 1987
Applicant:
Inventors:
Jean-Baptiste Rieunier, Nogent sur Oise, FR;
Marcel Fontar, Liancourt, FR;
Patrick B Le Breton, Rantigny, FR;
Assignee:
Orgel, Courbevoie, FR;
Primary Examiner:
Int. Cl.
CPC ...
D21H / ;
U.S. Cl.
CPC ...
162156 ; 55524 ; 55527 ; 162158 ; 162161 ; 1621643 ; 1621681 ; 429247 ; 429252 ;
Abstract
The invention relates to a glass microfibre based paper, the said fibres being obtained by centrifugal processing of molten glass which is drawn by an annular gas flow at elevated temperature and velocity, which passes along the peripheral wall of the centrifuge. The centrifuge rotates at a peripheral velocity of between 50 and 20 m/sec. and the quantity of glass drawn is less than 6 tons per day and per meter of centrifuge periphery in the case of microfibres of 2 to 3 microns and less than 1 ton per day and per meter of centrifuge periphery in the case of microfibres of less than 1 micron.