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. 27, 1988
Filed:
Feb. 05, 1987
Kunio Kashiwaya, Tokyo, JP;
Hiroyo Haga, Sagamihara, JP;
Nobuo Saeki, Tokyo, JP;
Youichi Yabuki, Tokyo, JP;
Kuniyuki Ozoe, Tokyo, JP;
Shinichi Fukushima, Narashino, JP;
Kazufumi Tabata, Narashino, JP;
Nippon Steel Corporation, Tokyo, JP;
Nippon Steel Welding Products & Engineering Co., Ltd., Tokyo, JP;
Abstract
A tube is wound into a coil, and the resulting coil of tube is vibrated so that a given point of the tube reciprocates along a helical path. An optical fiber is fed into the coil of tube that is being thus vibrated. Because of the vibration, the inner wall of the tube exerts such a force as to move the optical fiber diagonally upward and forward. This force causes the optical fiber to jump in the tube diagonally upward and forward and slide forward along the inner wall of the tube. The intermittent conveying force exerted by the inner wall of the tube in the direction of the circumference of the coil causes the optical fiber in the tube to travel forward, thereby pulling in additional length of the optical fiber from outside the tube.