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:
Jan. 29, 1980
Filed:
May. 10, 1974
Antonio Ferrentino, Monza, IT;
Industrie Pirelli Societa per Azioni, Milan, IT;
Abstract
An optical fiber band comprising an optical fiber intermediate and equi-distant from a pair of metal wires, each having substantially the same temperature coefficient of expansion as the optical fiber, embedded in a synthetic thermoplastic material and cables formed therewith. In one embodiment of a cable, a plurality of bands are bunched together and surrounded by a thermoplastic sheath. In another embodiment, a plurality of bands are disposed in side-by-side relation and preferably, secured together and a plurality of such bands are wound helically in successive layers around a supporting core, such as wire rope, and are covered by a thermoplastic sheath. Also, processes for forming the bands by extruding the thermoplastic over the fiber and wires or by sealing the fiber and wires between a pair of thermoplastic films.