Optical fiber cable with reinforcement
First Claim
Patent Images
1. An optical communication cable comprising:
- a cable body formed from a first material;
a plurality of core elements located within the cable body, wherein at least one of the core elements includes an elongate optical transmission element;
a reinforcement layer surrounding the plurality of core elements within the cable body; and
a film formed from a second material surrounding the plurality of core elements, wherein the film provides an inwardly directed force onto the core elements, and further wherein the film is located between the plurality of core elements and the reinforcement layer, wherein an inner surface of the cable body is bonded to an outer surface of the reinforcement layer and an outer surface of the film is bonded to an inner surface of the reinforcement layer such that the reinforcement layer remains attached to both the film and the cable body upon opening of the cable body to access the core elements.
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Abstract
An optical communication cable includes a cable body, a plurality of core elements located within the cable body, a reinforcement layer surrounding the plurality of core elements within the cable body, and a film surrounding the plurality of core elements. At least one of the plurality of core elements includes an elongate optical transmission element. The film provides an inwardly directed force onto the core elements, and a surface of the film is bonded to the reinforcement layer.
145 Citations
19 Claims
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1. An optical communication cable comprising:
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a cable body formed from a first material; a plurality of core elements located within the cable body, wherein at least one of the core elements includes an elongate optical transmission element; a reinforcement layer surrounding the plurality of core elements within the cable body; and a film formed from a second material surrounding the plurality of core elements, wherein the film provides an inwardly directed force onto the core elements, and further wherein the film is located between the plurality of core elements and the reinforcement layer, wherein an inner surface of the cable body is bonded to an outer surface of the reinforcement layer and an outer surface of the film is bonded to an inner surface of the reinforcement layer such that the reinforcement layer remains attached to both the film and the cable body upon opening of the cable body to access the core elements. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An optical communication cable comprising:
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an extruded cable body including an inner surface defining a passage in the cable body, the cable body formed from a first material; an elongate central strength member located within the passage; a plurality of core elements located within the passage and positioned around the central strength member, wherein at least one of the core elements includes an elongate optical transmission element; an elastic sleeve surrounding the central strength member and surrounding the plurality of core elements, wherein at least a portion of an inner surface of the elastic sleeve is in direct contact with a portion of the outer surfaces of at least some of the plurality of core elements such that a radial inwardly directed force is applied to the plurality of core elements; and a reinforcement material located within the passage and located outside of and wrapped around the elastic sleeve, wherein an inner surface of the reinforcement material is bonded to an outer surface of the elastic sleeve such that both the elastic sleeve and the reinforcement material are openable via the same opening action. - View Dependent Claims (11, 12, 13, 14, 15)
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16. An optical communication cable comprising:
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a cable body formed from an extruded first material and including an inner surface defining a passage in the cable body; an elongate central strength member located in the passage; a plurality of elongate optical transmission elements located in the passage and wrapped around the elongate central strength member such that a portion of the length of the plurality of wrapped elongate optical transmission elements form a spiral pattern around the elongate central strength member; a film formed from an extruded second material, the film located in the passage and surrounding the plurality of elongate optical transmission elements and providing an inwardly directed force on to the plurality of elongate optical transmission elements such that the film acts to maintain the spiral pattern of the elongate optical transmission elements; and a reinforcement layer located in the passage and wrapped around the film, wherein an inner surface of the reinforcement layer is bonded to an outer surface of the film such that the reinforcement layer remains bound to the film upon opening of the cable body to expose the optical transmission elements within the cable. - View Dependent Claims (17, 18, 19)
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Specification