Loose tube fiber optic cable
DCFirst Claim
Patent Images
1. A communication cable comprising:
- a core having a longitudinal axis and comprising at least one optical fiber communication medium;
a first longitudinally extending organizing member substantially axially disposed in said core;
at least one tubular member disposed adjacent said organizing member;
at least one optical fiber member within said tubular member wound in a loose helical configuration, said optical fiber member having a diameter considerably less than the inner diameter of said tubular member, thereby forming a loose tube assembly;
at least one longitudinally extending filamentary member of superabsorbent material within said tubular member;
said optical fiber member being free to move within said tubular member relative to said filamentary member;
a layered strength member surrounding and enclosing said first organizing member and said tubular member to form a first jacket, said strength member comprising a tubular member of material of high tensile strength and having an inner surface and an outer surface;
a first layer of water blocking material on said inner surface of said tubular member;
a plurality of water blocking members disposed within said first jacket; and
a second jacket surrounding and enclosing said first jacket.
6 Assignments
Litigations
0 Petitions
Accused Products
Abstract
An optical fiber cable has a plurality of loose tubes, each containing at least one optical fiber which is wound to form a loose helical configuration. The loose tubes each contain one or more filamentary members of superabsorbent material. The loose tubes are arrayed around a central organizing member and the assembly is surrounded by a strength member forming a jacket. The strength member is layered with superabsorbent material and the empty spaces within the jacket contain yarn members of superabsorbent material. The entire assembly is surrounded by an outer jacket of suitable material, preferably fire resistant.
118 Citations
14 Claims
-
1. A communication cable comprising:
-
a core having a longitudinal axis and comprising at least one optical fiber communication medium; a first longitudinally extending organizing member substantially axially disposed in said core; at least one tubular member disposed adjacent said organizing member; at least one optical fiber member within said tubular member wound in a loose helical configuration, said optical fiber member having a diameter considerably less than the inner diameter of said tubular member, thereby forming a loose tube assembly; at least one longitudinally extending filamentary member of superabsorbent material within said tubular member; said optical fiber member being free to move within said tubular member relative to said filamentary member; a layered strength member surrounding and enclosing said first organizing member and said tubular member to form a first jacket, said strength member comprising a tubular member of material of high tensile strength and having an inner surface and an outer surface; a first layer of water blocking material on said inner surface of said tubular member; a plurality of water blocking members disposed within said first jacket; and a second jacket surrounding and enclosing said first jacket. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
Specification