Optical waveguides – Optical transmission cable
Patent
1989-10-16
1991-12-03
Sikes, William L.
Optical waveguides
Optical transmission cable
174139, 385123, 385134, G02B 644
Patent
active
050695258
ABSTRACT:
An excellent optical fiber built-in type composite insulator including at least two insulator bodies each having a penetration bore, at least one optical fiber inserted in the penetration bores, and sealing structures for the penetration bores of the insulator bodies and for a joining layer of opposing end surfaces of adjacent insulator bodies, is provided, which effectively prevents leakage of inner silicone grease, bending and breakage of the optical fiber, leakage of electric current along the penetration bores, short circuited trouble, and destruction of the insulator bodies, improves joining strength of the opposing end surfaces of the insulator bodies, and maintains the joining strength for a long period, affords a change of numbers of the insulator bodies, and facilitates the production. A method of producing such composite insulator is also provided.
REFERENCES:
patent: 4613727 (1986-09-01), Salanki et al.
patent: 4653846 (1987-03-01), Yamazaki et al.
patent: 4810836 (1989-03-01), Shinoda et al.
patent: 4833278 (1989-05-01), Lambeth
patent: 4919217 (1990-04-01), Mima et al.
patent: 4921322 (1990-05-01), Seike et al.
Doi Kenji
Ikeda Mitsuji
Katsukawa Hiroyuki
Mori Koichi
Nakanishi Kazumi
Heartney Phan T.
NGK Insulators Ltd.
Sikes William L.
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