Methods of manufacturing a communication cable

Patent metadata

Field	Value
Publication number	US-9269479-B2
Application number	US-201314042940-A
Country	US
Kind code	B2
Filing date	Oct 1, 2013
Priority date	Mar 3, 2009
Publication date	Feb 23, 2016
Grant date	Feb 23, 2016

Abstract

Cable foil tape having random or pseudo-random patterns or long pattern lengths of discontinuous metallic shapes and a method for manufacturing such patterned foil tape are provided. In some embodiments, a laser ablation system is used to selectively remove regions or paths in a metallic layer of a foil tape to produce random distributions of randomized shapes, or pseudo-random patterns or long pattern lengths of discontinuous shapes in the metal layer. In some embodiments, the foil tape is double-sided, having a metallic layer on each side of the foil tape, and the laser ablation system is capable of ablating nonconductive pathways into the metallic layer on both sides of the foil tape.

First claim

We claim:

1. A method of manufacturing a communication cable including a plurality of twisted pairs of conductors stranded together to create a cable core, the method comprising the steps of:
establishing an effective pair lay length for each of the plurality of twisted pairs;
choosing at least one length of corresponding metallic shapes for a laminated film to prevent resonances with said effective pair lays, said at least one length being selected to avoid integer or half-integer multiples of said effective pair lay lengths;
forming said laminated film having at least one layer of said metallic shapes, each of said metallic shapes being approximately at least one said length and separated from one another by non-conductive gaps; and
wrapping said cable core with said laminated film.

2. The method of claim 1 , wherein said forming step includes the sub-step of laser ablating gaps in said laminated film to create said metallic shapes.

3. The method of claim 2 , wherein said gaps have a width ranging from about 0.5 mil to about 8 mil.

4. The method of claim 1 , wherein said choosing step includes choosing a single length for all of said metallic shapes.

Assignees

• Panduit Corp

Inventors

• Jenner Royal O
• Houghton Ii Timothy J
• Bolouri-Saransar Masud
• Nordin Ronald A

Classifications

• H01B11/085 Primary

  composed of longitudinal tape conductors · CPC title

• H05K1/0224

  Patterned shielding planes, ground planes or power planes (H05K1/0253 takes precedence) · CPC title

• B23K26/0846 Primary

  for moving elongated workpieces longitudinally, e.g. wire or strip material · CPC title

• B23K26/40

  taking account of the properties of the material involved · CPC title

• Y10T29/49194

  Assembling elongated conductors, e.g., splicing, etc. · CPC title