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:
Oct. 22, 1985
Filed:
Jul. 19, 1984
Jean-Luc Canivet, Oye Plage, FR;
Les Cables de Lyon, , FR;
Abstract
A method of injecting a viscous filler material into fiber-receiving grooves in the core (1) of an optical fiber cable, the method comprising the steps of: winding a first tape (5) spirally around the fiber-containing core and leaving gaps between adjacent turns of the said first tape; passing the taped core through a calibrated bore (12) of slightly greater diameter; injecting (11) viscous filler material into the said bore at a pressure chosen in relation to the speed of progress of the core through the bore to ensure that the filler material passes through the gaps between the adjacent turns of the tape to completely fill the volume of the grooves that is unoccupied by the fibers, but without the filler material being able to extend back along the grooves upstream from the point of injection; and winding a second tape spirally around the core containing both the fibers and the filler material in its grooves, said second tape being wound so as to close the gaps between the turns of the first tape.