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US 11,899,258 B2Granted
Optical fiber cable and raceway therefor
AssigneeNubis Communications, Inc.
InventorPeter Johannes Winzer
Life of this patent
Estimating the term…
Abstract
Provided are (i) a fiber-optic cable having a cable sheath that enables significant changes in the cable's cross-sectional shape when the cable is bent and (ii) a raceway that can be used to deploy such a fiber-optic cable.
Claims23
An apparatus comprising:
- a fiber-optic cable comprising a cable segment that has a plurality of optical fibers laterally encased by a cable sheath;
- wherein the cable segment when straight has a longest cross-sectional dimension A0 and a shortest cross-sectional dimension B0, and
- wherein the cable segment is constructed to permit relative lateral movement of at least some of the optical fibers within the cable sheath to change a cross-sectional shape of the cable segment upon bending of the cable segment greater than a predetermined degree such that the bent cable segment has a longest cross-sectional dimension A1 and a shortest cross-sectional dimension B1, and at least one of (i) A1<0.8×A0 or A1>1.2×A0, or (ii) B1<0.8×B0 or B1>1.2×B0.
An apparatus comprising:
- a raceway having a hollow cable conduit, the hollow cable conduit having a curved portion having a first end and a second end, a first straight portion connected to the first end of the curved portion, and a second straight portion connected to the second end of the curved portion, the curved portion of the hollow cable conduit having a larger cross-sectional size measured orthogonally to a main plane of the raceway than a first corresponding cross-sectional size of the first straight portion and a second corresponding cross-sectional size of the second straight portion of the hollow cable conduit;
- wherein the first straight portion, the curved portion, and the second straight portion in combination define a first opening and a second opening without any additional opening, and the hollow cable conduit allows a fiber-optical cable to extend from the first opening to the second opening while being enclosed by the first straight portion, the curved portion, and the second straight portion.
Dependencies are inferred from the claim text.