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. 26, 1989
Filed:
Apr. 14, 1988
Paul Radage, Weston Coyney, GB;
Peter Harvey, London, GB;
BICC Public Limited Company, , GB;
Abstract
An optical cable, especially suitable for use as an aerial cable, comprises a circumferentially rigid flexible tube which is of composite form and comprises a plurality of elongate flexible bodies helically laid up together, each of which bodies is of a cross-section approximating to a sector of an annulus and comprises extruded electrically insulating plastics material and a mulitiplicity of longitudinally stressed elongate flexible non-metallic reinforcing elements encapsulated in said plastics material, e.g. polypropylene or nylon, the multiplicity of non-metallic reinforcing elements being substantially evenly distributed throughout the cross-sectional area of the body. An outer protective non-metallic sheath surrounds the tube and at least one flexible optical guide, e.g. a separate optical fibre, optical bundle or optical fibre ribbon structure, is housed in the bore of and is movable relative to the tube.