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:
Dec. 02, 2008
Filed:
Feb. 13, 2002
Sebastien Beaufils, Cernoy, FR;
Christophe Wagner, Athens, GA (US);
Mark Trabbold, Harleysville, PA (US);
Alain Yang, Bryn Mawr, PA (US);
Sebastien Beaufils, Cernoy, FR;
Christophe Wagner, Athens, GA (US);
Mark Trabbold, Harleysville, PA (US);
Alain Yang, Bryn Mawr, PA (US);
Saint-Gobain Isover, Courbevoie, FR;
Abstract
A method is provided to produce fine diameter glass fibers with fewer defects through a combination of lower attenuating gas velocities and the use of spinners having more and smaller holes. The method uses a device for internal centrifugation of mineral fibers including a centrifuge equipped with a peripheral band perforated with orifices distributed in a plurality of annular zones arranged on top of each other, assuming that the centrifuge is in centrifugation position. The device includes at least two annular zones whose number of orifices per unit of surface area differs by a value greater than or equal to 5%, 10%, or 20%.