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:
Dec. 23, 2008
Filed:
Aug. 31, 2007
Klaus Nothofer, Erkrath, DE;
Peter Lausch, Krefeld, DE;
Klaus Nothofer, Erkrath, DE;
Peter Lausch, Krefeld, DE;
Draka Comteq B.V., Amsterdam, NL;
Abstract
The present invention relates to a loose tube optical waveguide fiber cable that is suitable for riser or plenum applications. The cable includes a protective tube that loosely surrounds two or more optical waveguides inside the hollow cavity defined by the tube. The protective tube has an inner surface and an outer surface and is a dry structure. Accordingly, the protective tube does not contain any gel-like compounds or other materials around the optical fibers positioned inside the protective tube. Strengthening members are disposed between the inner surface of the protective tube and the outer surface of the protective tube. The strengthening members are configured as embedded or layered strengthening elements and are disposed longitudinally along the length of the cable.