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:
May. 22, 1979
Filed:
May. 25, 1977
Applicant:
Inventors:
Carl P Sandbank, Bishops Stortford, GB;
John Irven, Bishops Stortford, GB;
Assignee:
International Standard Electric Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
C03B / ;
U.S. Cl.
CPC ...
65 / ; 65 6 / ; 65 86 ; 65121 ; 65DI / ; 427167 ; 427168 ;
Abstract
A continuous flow process is disclosed in which optical fibre is made by a method involving the chemical vapor deposition of material upon the bore of a tube. The tube is fabricated from an annular crucible around a vertical gas feed and is lowered through a hot zone where it is softened and drawn into fibre. The gas deposits one or more layers on the inside of the tube prior to drawing so as to provide the drawn fibre with optical waveguide properties.