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:
Jul. 12, 1988
Filed:
Oct. 14, 1986
Applicant:
Inventors:
Assignee:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350 9623 ;
Abstract
An optical unit, particularly for use with a composite overhead conductor. The cylindrical, aluminum core of the optical unit has spirally shaped grooves on its surface into which optical fibers are placed. A tape is spirally wound to hold the optical fibers in the grooves. The winding pitch is such that the tape edges overlap. An aluminum pipe encases the spacer, optical fibers and tape. The tape consists of a thermally insulating middle layer and two sheets of aluminum foil sandwiching the middle layer, the aluminum foil contacting the pipe and the core so as to conduct electricity therebetween.