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:
Mar. 22, 2005
Filed:
Jul. 31, 2002
Kazunaga Kobayashi, Chiba, JP;
Masahiro Kusakari, Chiba, JP;
Takeshi Honjyou, Chiba, JP;
Keiji Ohashi, Chiba, JP;
Kazunaga Kobayashi, Chiba, JP;
Masahiro Kusakari, Chiba, JP;
Takeshi Honjyou, Chiba, JP;
Keiji Ohashi, Chiba, JP;
Fujikura Ltd., Tokyo, JP;
Abstract
The manufacturing apparatus for optical fiber cord is provided with an extrusion machine, a cooling chamber, an intermediate pulling device, a heating chamber, a final pulling device, and a winding machine wherein the machines, the devices and the chambers are disposed in this order. One or more optical fiber cores and one or more reinforcing fibers are sheathed with thermoplastic resin by the extrusion machine. The thermoplastic resin is solidified by cooling so as to be a resin sheath. The sheathed fibers are annealed by the heating chamber so that its residual stress is relieved.