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US 2003/0156811 A1Published application
Optical fiber unit for air blown fiber installation
AssigneeFujikura Ltd.
InventorsEtsuo Ino, Tsuyoshi Shimomichi, Keiji Ohashi
Life of this patent
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Abstract
An optical fiber unit for air blown fiber installation, including an optical fiber wire; an inner coating layer formed on an outer periphery of the optical fiber wire with a modulus of elasticity ranging from 0.98 to 196 MPa; an outer coating layer formed on an outer periphery of the inner coating layer with a modulus of elasticity ranging from 196 to 1960 MPa; and a foamed plastic layer formed on an outer periphery of the outer coating layer.
Claims7
An optical fiber unit for air blown fiber installation, comprising:
- an optical fiber wire;
- an inner coating layer formed on an outer periphery of the optical fiber wire with a modulus of elasticity ranging from 0.98 to 196 MPa;
- an outer coating layer formed on an outer periphery of the inner coating layer with a modulus of elasticity ranging from 196 to 1960 MPa;
- and
- a foamed plastic layer formed on an outer periphery of the outer coating layer.
2 more elements
An optical fiber unit for air blown fiber installation, comprising:
- an optical fiber wire;
- a plurality of intervening cords longitudinally provided on the outer periphery of the optical fiber wire with a density of 0.90 g/cm3;
- and
- a coating layer formed on the outer periphery of the plurality of intervening cords.
1 more element
Dependencies are inferred from the claim text.