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:
May. 18, 1999
Filed:
Jul. 21, 1997
Aaron M Anderson, Batesburg, SC (US);
John C Smith, Columbia, SC (US);
Pirelli Cable Corporation, , DE (US);
Abstract
An optical fiber cable comprises a central tube containing at least one optical fiber, a plurality of outer tubes, each containing at least one optical fiber, and at least two strength members, wherein the outer tubes and strength members are disposed around and in contact with the central tube, the strength members being between intermediate pairs of outer tubes. Preferably, a cord is wound around the outer tubes and strength members to hold them against the outer tube. Preferably, the optical fiber in the central tube is part of an optical fiber ribbon. Preferably, a plurality of individual optical fibers are provided in the outer tubes. The optical fibers are loosely contained within the central and outer tubes. One or several additional tubes containing insulated copper pairs or a coaxial cable may also be provided. Preferably, the cable tubes and the strength members are disposed in a reverse oscillating lay or S-Z fashion around the central tube.