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. 29, 1979
Filed:
Apr. 19, 1978
Applicant:
Inventors:
Michel de Vecchis, Paris, FR;
Maurice Arnaud, Paris, FR;
Assignee:
Lignes Telegraphiques et Telephoniques, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; B32B / ;
U.S. Cl.
CPC ...
156171 ; 57 13 ; 156172 ; 15624412 ; 15624415 ; 156285 ;
Abstract
A cable comprising a central armour, a dielectric helically grooved core and an optical fibre housed in each one of the plurality of the grooves is produced by extrusion of the profiled core on the armour, pulling vertically the core through an annular laying unit comprising a plurality of take off reels supplying optical fibre guiding each of said fibre within one of the grooves by mechanical and pneumatic means and taping fibre filled core.