Glass manufacturing – Fiber making apparatus – With measuring – controlling – sensing – timing – inspecting,...
Patent
1996-04-10
2000-05-16
Hoffmann, John
Glass manufacturing
Fiber making apparatus
With measuring, controlling, sensing, timing, inspecting,...
65502, 65 251, 65121, 65145, 651822, C03B 37022
Patent
active
060620471
ABSTRACT:
The material is in a fluid state at a predetermined temperature above the ambient temperature. According to the invention: a) at least two different compositions of this material in the fluid state are prepared; b) simultaneously and concentrically both the core of the rod with the aid of one of the compositions and a sheath enveloping this core with the aid of another composition are cast; and c) the casting is then taken to a temperature at which it solidifies to constitute the rod. Advantageously, the section of the casting is made to grow by its passing through a cylindrical mold shaped to define the final section of the rod. Application to the manufacture of a glass rod presenting a cross-sectional refractive index gradient.
REFERENCES:
patent: 3298808 (1967-01-01), Macks
patent: 3614197 (1971-10-01), Nishizawa et al.
patent: 4023953 (1977-05-01), Megles
patent: 4145200 (1979-03-01), Yamazaki
patent: 4248614 (1981-02-01), Scherer
patent: 4351659 (1982-09-01), Beales
patent: 4383843 (1983-05-01), Iyengar
patent: 4620861 (1986-11-01), Berkey
patent: 4624692 (1986-11-01), Roba
patent: 4883522 (1989-11-01), Hagerty et al.
patent: 4929065 (1990-05-01), Hagerty et al.
patent: 5069700 (1991-12-01), Yamane et al.
patent: 5364432 (1994-11-01), Leber
Patent Abstract of Japan, vol. 16, No. 13 (C-0901), Jan. 14, 1992 & JP-A-03 232734 (Kokusai Denshin Denwa Co Ltd) Oct. 16, 1991.
Glastechnische Berichte, vol. 67, No. 3, Mars 1994 Frankfurt, DE, pp. 61-64, XP 000433742 Rammo "Shaping of Glass Melts by Continuous Pull Extrusion".
Fredholm Allan Mark
Kerdoncuff Alain
Prassas Michel
Corning Incorporated
Hoffmann John
Nwaneri Angela N.
Peterson Milton M.
LandOfFree
Device for manufacturing a rod of a material having a cross-sect does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device for manufacturing a rod of a material having a cross-sect, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for manufacturing a rod of a material having a cross-sect will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-249506