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US 7,187,829 B2Granted
Low smoke, low toxicity fiber optic cable
AssigneeJudd Wire, Inc.
InventorsMark A. Anderson, Jeffrey S. Doak, George Gong, Young Joon Kim, Jun Hong Yi
Life of this patent
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Abstract
A low smoke, low toxicity fiber optic cable that provides an intermediate surface that facilitates bonding to optical connectors such as LC connectors, is provided. In a preferred embodiment, the inventive cable exhibits improved dimensional stability by minimizing or eliminating shrinkage stress on the optic fiber core.
Claims22
A low smoke, low toxicity fiber optic cable that comprises:
- (1) at least one optical fiber;
- (2) a primary buffer member circumferentially surrounding each optical fiber, wherein the primary buffer member is prepared from a material selected from the group of silicones, acrylic polymers, acrylates and polyimides;
- (3) a secondary buffer member circumferentially surrounding the primary buffer member, wherein the secondary buffer member is prepared from, or has an outer surface or layer prepared from, a material selected from the group of bondable polyimides and grafted or modified fluoropolymers;
- (4) a strength member circumferentially surrounding the secondary buffer member;
- and
- (5) an outer protective jacket circumferentially surrounding the strength member,
- wherein, when tested in accordance with Boeing Specification Support Standard BSS 7324 (Dec. 2, 1998) Smoke Emission Test Method, the cable produces, at four minutes in the flaming mode, a smoke with a specific optical density of less than 100.
4 more elements
A low smoke, low toxicity fiber optic cable that comprises:
- (1) at least one optical fiber;
- (2) a primary buffer member circumferentially surrounding each optical fiber;
- (3) a secondary buffer member circumferentially surrounding the primary buffer member, wherein the secondary buffer member is prepared from, or has an outer surface or layer prepared from, a material selected from the group of bondable polyimides and maleic anhydride grafted ethylene-tetrafluoroethylene copolymers;
- (4) a strength member circumferentially surrounding the secondary buffer member;
- and
- (5) an outer protective jacket circumferentially surrounding the strength member,
- wherein, when tested in accordance with Boeing Specification Support Standard BSS 7324 (Dec. 2, 1998) Smoke Emission Test Method, the cable produces, at four minutes in the flaming mode, a smoke with a specific optical density of less than 100.
4 more elements
Dependencies are inferred from the claim text.