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:
Aug. 26, 1997
Filed:
Feb. 20, 1996
Hiroaki Sano, Kanagawa, JP;
Hiroki Ishikawa, Kanagawa, JP;
Shigeru Tanaka, Kanagawa, JP;
Nobumasa Nirasawa, Kanagawa, JP;
Kenji Morita, Kanagawa, JP;
Osamu Kawata, Ibaraki, JP;
Kazuo Hogari, Ibaraki, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Abstract
In an optical cable according to the present invention, a grooved spacer has a plurality of grooves in its circumference, and the cutting direction of the grooves is inverted at predetermined periods. Optical fibers are received in the respective grooves. On the circumference of the grooved spacer, a linear member is provided around the grooved spacer along the longitudinal direction of the optical cable at a predetermined period. The linear member is fixed to the grooved spacer by welding or bonding in the portions where they touch the outer circumferences of the grooved spacer so as to restrain the optical fibers. The linear member restraining the optical fiber to be taken out are cut in positions above the groove in which the optical fiber is received so that the required optical fiber can be taken out.