Method of elongating optical fiber base material, and...

Details Method of elongating optical fiber base material, and... Method of elongating optical fiber base material, and...

2005-01-12

2010-12-21

Tolan, Edward (Department: 3725)

Metal deforming

By pulling workpiece through closed periphery die

With heating or cooling

C072S031130, C072S251000, C072S291000, C072S342100

Reexamination Certificate

active

07854157

ABSTRACT:
The method, in which base material ingot1is heated and softened in an electric furnace3, drawn with a pair of pinch roller6and6, and elongated to make base material rod7having a smaller diameter than the ingot, features: forming either a roller groove11having a curvature radius which is larger than the outer diameter of the base material rod7or a V-shaped roller groove11having the cross section consisting of straight lines on the surface of the pinch roller6made of metal; nipping with the facing roller grooves11and11respectively formed on the surfaces of a pair of said pinch rollers6and6; and drawing said base material rod.

REFERENCES:
patent: 3250362 (1966-05-01), Mitchell
patent: 4345451 (1982-08-01), Pamplin et al.
patent: 4386513 (1983-06-01), Doudet
patent: 4594872 (1986-06-01), Nordlof
patent: 4650380 (1987-03-01), Lipowski
patent: 5248656 (1993-09-01), Nagesh et al.
patent: 6694584 (2004-02-01), Ahrens
patent: 6742363 (2004-06-01), Yamamura et al.
patent: 57-121810 (1982-07-01), None
patent: 61-88916 (1986-05-01), None
patent: 62-167236 (1987-07-01), None
patent: 9-202636 (1997-08-01), None
patent: 10-81531 (1998-03-01), None
patent: 10-310443 (1998-11-01), None
patent: 2000-264664 (2000-09-01), None
patent: 2001-122635 (2001-05-01), None
patent: 2003-238185 (2003-08-01), None

Affiliated with

Also associated with

Rating

Method of elongating optical fiber base material, and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of elongating optical fiber base material, and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of elongating optical fiber base material, and... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4219171