Glass manufacturing – Fiber making apparatus – With crimping or curling means
Reexamination Certificate
2011-06-28
2011-06-28
Hoffmann, John (Department: 1741)
Glass manufacturing
Fiber making apparatus
With crimping or curling means
Reexamination Certificate
active
07966846
ABSTRACT:
An optical fiber twisting apparatus that prevents line distortion in an optical fiber undergoing a drawing process and provides a consistent coating on a bare optical fiber. This optical fiber twisting apparatus includes a twist roller apparatus that having a twist roller that, by imparting a twist to an optical fiber, imparts a twist to a molten portion of an optical fiber preform positioned on an upstream side of the optical fiber, and a support portion that supports the twist roller. The accuracy of the outer circumference of the twist roller when the twist roller is forming a part of the twist roller apparatus is 15 μm or less.
REFERENCES:
patent: 5298047 (1994-03-01), Hart, Jr. et al.
patent: 5897680 (1999-04-01), Geertman
patent: 5943466 (1999-08-01), Henderson et al.
patent: 6148131 (2000-11-01), Geertman
patent: 6240748 (2001-06-01), Henderson et al.
patent: 6324872 (2001-12-01), Blaszyk et al.
patent: 6550281 (2003-04-01), Hawk
patent: 2003/0138230 (2003-07-01), Tsurusaki et al.
patent: 2004/0232571 (2004-11-01), Tong et al.
patent: 0 795 521 (1997-09-01), None
patent: 0 785 913 (2000-05-01), None
patent: 7-109150 (1995-04-01), None
patent: 10-507438 (1998-07-01), None
patent: 2000-505413 (2000-05-01), None
patent: 2000-344539 (2000-12-01), None
patent: 3224235 (2001-10-01), None
patent: 2003-327445 (2003-11-01), None
patent: 2001-0082447 (2001-08-01), None
patent: 97-07067 (1997-02-01), None
patent: WO 97/07067 (1997-02-01), None
patent: 97-30945 (1997-08-01), None
patent: WO 97/30945 (1997-08-01), None
Engineering Tolerances, (pp. 1-4) From wikipedia.org website. Nov. 16, 2009.
“Engineering Tolerances”, pp. 1-4, from Wikipedia.org website, Nov. 16, 2009.
Harada Koichi
Okada Kenji
Fujikura Ltd.
Hoffmann John
Sughrue & Mion, PLLC
LandOfFree
Optical fiber drawing and twisting apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical fiber drawing and twisting apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical fiber drawing and twisting apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2668757