Filling compound having alumina gelling agent
First Claim
Patent Images
1. An optical fiber cable comprising:
- a core having at least one optical fiber transmission medium;
a sheath system which is disposed about said core; and
a filling material which is disposed in said core, said filling material including a hydrocarbon carrier means; and
a thickening system disposed within the hydrocarbon carrier means, wherein the thickening system includes alumina; and
a polymer.
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Accused Products
Abstract
An optical fiber cable having a core which includes at least one optical fiber transmission medium, a sheath system which is disposed about said core, and a filling material disposed within said core. The filling material of the optical fiber cable includes both a hydrocarbon carrier means, and a thickening system disposed within the hydrocarbon carrier means. The thickening system may include an inorganic constituent, either alumina or fumed alumina, and a polymer.
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Citations
17 Claims
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1. An optical fiber cable comprising:
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a core having at least one optical fiber transmission medium;
a sheath system which is disposed about said core; and
a filling material which is disposed in said core, said filling material including a hydrocarbon carrier means; and
a thickening system disposed within the hydrocarbon carrier means, wherein the thickening system includes alumina; and
a polymer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
paraffinic oils having a minimum specific gravity of about 0.86 and a pour point less than −
4°
C.; and
naphthenic oils having a minimum specific gravity of about 0.86 and a pour point less than −
40°
C.
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12. The optical fiber cable of claim 1 wherein the hydrocarbon is a mixture of mineral oils.
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13. The optical fiber cable of claim 12 wherein the mixture of mineral oils is selected from the group consisting of:
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paraffinic oils having a minimum specific gravity of about 0.86 and a pour point less than −
4°
C.; and
naphthenic oils having a minimum specific gravity of about 0.86 and a pour point less than −
4°
C.
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14. The optical fiber cable of claim 1 further comprising an antioxidant in which said antioxidant is a high molecular weight, sterically hindered phenolic antioxidant.
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15. An optical fiber cable comprising:
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core comprising at least one optical fiber transmission medium;
a sheath system which is disposed about said core; and
a filling material which is disposed in said core, said filling material including a thickening system including fumed alumina; and
a polymer, said filling material and having a critical yield stress of less than about 0.002 psi (13.8 Pa). - View Dependent Claims (16, 17)
an hydrocarbon carrier means; and
a thickening system which comprises an inorganic constituent; and
a polymer.
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Specification
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Current AssigneeFurukawa Electric North America Incorporated (Furukawa Electric Company Limited)
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Original AssigneeLucent Technologies, Inc. (Nokia Corporation)
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InventorsSheu, Jim Jenqtsong
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Primary Examiner(s)Ullah, Akm E.
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Application NumberUS09/510,131Time in Patent Office792 DaysField of Search385/100-109, 385/147US Class Current385/102CPC Class CodesG02B 6/44384 the means comprising water ...
