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:
Jun. 07, 2005
Filed:
Sep. 21, 2001
Jean-philippe J. DE Sandro, Beaconsfield, CA;
Keith L. House, Corning, NY (US);
Joohyun Koh, Horseheads, NY (US);
Prantik Mazumder, Corning, NY (US);
Jean-Philippe J. de Sandro, Beaconsfield, CA;
Keith L. House, Corning, NY (US);
Joohyun Koh, Horseheads, NY (US);
Prantik Mazumder, Corning, NY (US);
Corning Incorporated, Corning, NY (US);
Abstract
A method and apparatus for providing a uniform coating thickness along an axial direction within an internal portion of a substrate tube is disclosed. A gas delivery unit is configured to coat the internal portion of the substrate tube. The gas delivery unit includes an insert. At least one of an inner diameter of the insert, a length of the insert, a gap between the insert and the substrate tube, and a flow of the gas mixture delivered to the substrate tube is configured to provide the uniform coating thickness along the axial direction.