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. 24, 2002
Filed:
Jan. 11, 2001
Yutaka Ohkoshi, Ueda, JP;
Toshifumi Ikaga, Ueda, JP;
Wataru Okumura, Ueda, JP;
Atsushi Kobayashi, Ueda, JP;
Takayoshi Yamaguchi, Ueda, JP;
Abstract
A high-strength synthetic fiber is fabricated in such a way that a fiber, such as a polyester fiber, nylon fiber, or polyether ketone fiber, is irradiated with an infrared beam and is drawn while its thread is heated and softened at temperatures higher than a glass transition temperature. An apparatus for fabricating a fiber is provided with a means ( ) for continuously feeding a thread ( ) at a constant feed rate (v) and an infrared irradiation means ( ) including a laser for irradiating the thread ( ) with an infrared beam, interposed between the means ( ) for feeding the thread and a fiber winding means ( ) for winding the thread ( ) at a winding rate (V) higher than the constant feed rate (v), in order to soften the thread ( ) traveling to be fed and wound.