Optical fiber cable
US-2022365300-A1 · Nov 17, 2022 · US
Optical fiber cable and cable with connector
US12535645B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12535645-B2 |
| Application number | US-202218252608-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 11, 2022 |
| Priority date | Jan 12, 2021 |
| Publication date | Jan 27, 2026 |
| Grant date | Jan 27, 2026 |
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- Title
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Abstract
Official abstract text for this publication.
An optical fiber cable includes a central tensile strength member, a plurality of optical fibers disposed around the central tensile strength member, a set of tensile strength members arranged outside the plurality of optical fibers, and a sheath disposed outside the plurality of optical fibers, in which at least four sets of the tensile strength member are spaced apart from one another and embedded in the sheath.
First claim
Opening claim text (preview).
What is claimed is: 1 . An optical fiber cable comprising: a central tensile strength member; a plurality of optical fibers arranged around the central tensile strength member; a set of tensile strength members arranged outside the plurality of optical fibers; and a sheath disposed outside the plurality of optical fibers, wherein at least four sets of tensile strength members are spaced apart from one another and embedded in the sheath, and wherein an allowable tension of the optical fiber cable is 1890 N or more and 2363 N or less. 2 . The optical fiber cable according to claim 1 , wherein at least one of the central tensile strength member and the set of the tensile strength members includes aramid fiber reinforced plastic. 3 . The optical fiber cable according to claim 1 , wherein the central tensile strength member includes aramid fiber reinforced plastic and has a diameter of 3 mm or less. 4 . The optical fiber cable according to claim 1 , wherein the sheath includes 1.5% by mass or more of release agent. 5 . The optical fiber cable according to claim 1 , wherein the sheath includes a flame retardant inorganic material with an oxygen index of 50 or higher. 6 . The optical fiber cable according to claim 1 , wherein the sheath includes an outer layer and an inner layer, the inner layer includes a flame retardant inorganic material, and the outer layer includes a release agent. 7 . The optical fiber cable according to claim 1 , wherein the plurality of optical fibers are in a form of optical fiber ribbons with adhesive parts and non-adhesive parts arranged in parallel in a direction orthogonal to the longitudinal direction, wherein, in some or all of the plurality of optical fibers, adhesive parts in a state in which adjacent optical fibers are connected to each other and non-adhesive parts in a state in which adjacent optical fibers are not connected to each other are provided intermittently in the longitudinal direction. 8 . The optical fiber cable according to claim 1 , wherein each of the plurality of optical fibers is a multi-core fiber. 9 . A cable with a connector comprising: the optical fiber cable according to claim 1 ; and a multi-core connector attached to the plurality of optical fibers at one end of the optical fiber cable.
Assignees
Inventors
Classifications
with ribbon structure (G02B6/4429, G02B6/4439, G02B6/4479 take precedence) · CPC title
Multicore or multichannel optical connectors, i.e. one single ferrule containing more than one fibre, e.g. ribbon type (optical ribbon cable G02B6/4403, G02B6/448) · CPC title
Multicore optical fibres · CPC title
- G02B6/4434Primary
Central member to take up tensile loads · CPC title
with fibre reinforcements · CPC title
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Frequently asked questions
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- What does patent US12535645B2 cover?
- An optical fiber cable includes a central tensile strength member, a plurality of optical fibers disposed around the central tensile strength member, a set of tensile strength members arranged outside the plurality of optical fibers, and a sheath disposed outside the plurality of optical fibers, in which at least four sets of the tensile strength member are spaced apart from one another and emb…
- Who is the assignee on this patent?
- Sumitomo Electric Industries
- What technology area does this patent fall under?
- Primary CPC classification G02B6/4434. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jan 27 2026 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).