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. 03, 1987
Filed:
Apr. 17, 1986
Cornelis M Jochem, Eindhoven, NL;
Jacobus W van der Ligt, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
A method of and an apparatus for providing a bubble-free coating on a fibre, more particularly on an optical fibre. A fibre to be coated is fed into a pressure chamber (61) via an inlet duct (56) with a restricted inlet opening (57) and leaves the pressure chamber (61) through an outlet opening (41) of a nozzle (40). Liquid coating material is supplied to the pressure chamber (61) at such a pressure that the coating material rises in the inlet duct (56) up to a certain level to form a convex meniscus (D). By flushing the surroundings of the inlet opening (57) with a gas having a kinematic viscosity which is lower than that of air, the drawing speed at which the applied coating is still bubble-free can be considerably increased.