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:
Sep. 20, 1994
Filed:
Feb. 14, 1992
Haruhiko Aikawa, Yokohama, JP;
Katsuya Nagayama, Yokohama, JP;
Yoichi Ishiguro, Yokohama, JP;
Ichiro Yoshimura, Yokohama, JP;
Yutaka Katsuyama, Mito, JP;
Nobuyuki Yoshizawa, Mito, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Abstract
An apparatus for manufacturing a hermetically coated optical fiber having a single reaction chamber into which a fare fiber and raw gas are to be introduced for applying a hermetic coating to the bare fiber while the bare fiber passes through the reaction chamber is characterized by that the reaction chamber has a plurality of inlet tubes to introduce the raw gas, and the plurality of inlet tubes open to the reaction chamber at different positions from each other in a direction of movement of the bare fiber passing through said reaction chamber.