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:
Nov. 27, 2007
Filed:
Nov. 30, 2001
Applicants:
Giacomo Stefano Roba, Monza, IT;
Massimo Nutini, Milan, IT;
Inventors:
Giacomo Stefano Roba, Monza, IT;
Massimo Nutini, Milan, IT;
Assignee:
Prysmian Cavi e Sistemi Energia S.r.l., Milan, IT;
Primary Examiner:
Int. Cl.
CPC ...
C03B 37/018 (2006.01); F23D 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Method and burner for increasing the deposition rate of porous glass deposit in the manufacture of optical preforms, by modifying the cross-sectional shape of the flow of glass particles impacting onto a target preform. In particular, the cross-section of the flow of glass particles is modified by increasing the dimension of the flow from a circular cross-section to one having a major and minor axis in a direction substantially perpendicular to the longitudinal axis of the target preform.