Jetting optimized outdoor and indoor multi-function drop cable

Patent metadata

Field	Value
Publication number	US-2024012218-A1
Application number	US-202318370588-A
Country	US
Kind code	A1
Filing date	Sep 20, 2023
Priority date	May 7, 2019
Publication date	Jan 11, 2024
Grant date	—

Abstract

An optical fiber drop cable including a cable jacket having an outer surface defining the outermost surface of the optical fiber drop cable. The optical fiber drop cable also includes a subunit, a first strength element, and a second strength element. The first strength element, the second strength element, and the subunit are embedded in the cable jacket, and the first strength element, the second strength element, and the subunit are arranged substantially parallel to each other on a first plane. The subunit includes a buffer tube having an inner surface and an outer surface, at least one optical fiber, and a plurality of strengthening yarns. The plurality of strengthening yarns are disposed between the inner surface of the buffer tube and the at least one optical fiber, and the outer surface of the buffer tube is at least partially in contact with the cable jacket.

First claim

What is claimed is:

1 . A method of providing optical communications to a premise, comprising the steps of:
feeding an optical fiber drop cable through a duct, the optical fiber drop cable comprising a cable jacket in which at least one subunit, a first strength member, and a second strength member are embedded, wherein each of the at least one subunit comprises a flame retardant buffer in contact with the cable jacket, the flame retardant buffer tube defining a central bore including at least one optical fiber and a plurality of strengthening yarns disposed about the at least one optical fiber; removing the cable jacket from the optical fiber drop cable to expose the at least one subunit; routing the at least one subunit within the premise.

2 . The method of claim 1 , wherein the step of feeding the optical fiber drop cable through a duct comprises pushing the the optical fiber drop cable through the duct using a compressed fluid.

3 . The method of claim 1 , wherein the optical fiber drop cable further comprises a first access feature and a second access feature, wherein a first plane defined by the first strength element and the second strength element is transverse to a second plane defined by the first access feature and the second access feature, and wherein the step of removing the cable jacket further comprises accessing the optical fiber drop cable at at least one of the first access feature or the second access feature.

4 . The method of claim 1 , wherein the cable jacket comprises a material having a coefficient of friction of from 0.15 to 0.25.

5 . The method of claim 1 , wherein the at least one subunit is riser FT 4 rated according to CSA C22.2.

Assignees

• Corning Res & Dev Corp

Inventors

• Abernathy George Cornelius
• Keisler Corey Scott
• Lail Jason Clay

Classifications

• G02B6/4477

  with means for strain-relieving to interior strengths element · CPC title

• G02B6/44384 Primary

  the means comprising water blocking or hydrophobic materials (G02B6/4439, G02B6/4479 take precedence) · CPC title

• G02B6/4433 Primary

  Double reinforcement laying in straight line with optical transmission element · CPC title

• G02B6/4431

  with provision in the protective covering, e.g. weak line, for gaining access to one or more fibres, e.g. for branching or tapping (break-out terminations G02B6/4471) · CPC title

• G02B6/52

  using fluid, e.g. air · CPC title