High speed telecommunication cable

• US 5,883,334 A
• Filed: 08/13/1997
• Issued: 03/16/1999
• Est. Priority Date: 06/13/1995
• Status: Expired due to Term

• Current Assignee: Berk-Tek LLC (Leviton Manufacturing Company Incorporated)
• Original Assignee: Alcatel SA (Nokia Corporation)
• Inventors: Lawrence, Eric, Newmoyer, Kerry
• Primary Examiner(s): Kincaid, Kristine
• Assistant Examiner(s): Nguyen, Chau N.
• Application Number:
  US08/910,309
• Time in Patent Office: 580 Days
• Field of Search: 174/34, 174/36, 174/113 R, 174/113 A, 174/113 C, 174/131 A, 174/27
• US Class Current: 174/113.00R
• CPC Class Codes: H01B 11/02 Cables with twisted pairs or quads

Abstract

A high speed telecommunication cable includes at least two soft supports, such as a flame retardant polypropylene material, each having a plurality of embedded twisted pair conductors disposed therein and a plurality of wrapped twisted pair conductors disposed about the periphery thereof.

Claims

1. A high speed telecommunication cable comprising:

a cable core including;

soft support means;

a first plurality of twisted pair conductors selectively spaced and embedded within said soft support means;

a second plurality of twisted pair conductors positioned on a periphery of said soft support means and not embedded within said soft support means, wherein said soft support means supports said second plurality of twisted pair conductors;

each twisted pair conductor including a pair of electrical conductors each of said conductors surrounded by a layer of insulation material; and

a cable jacket surrounding said cable core.

2. The high speed telecommunication cable as claimed in claim 1 further comprising:

a layer of shielding material between said second plurality of twisted pair conductors and said jacket.

3. The high speed telecommunication cable as claimed in claim 2 wherein said layer of shielding material is an electrically conductive material.

4. The high speed telecommunication cable as claimed in claim 1;

wherein said second plurality of twisted pair conductors are wound about said soft support means.

5. The high speed telecommunication cable as claimed in claim 1;

wherein said soft support means includes a first soft support means and a second soft support means.

6. The high speed telecommunication cable as claimed in claim 5;

wherein said second plurality of twisted pair conductors is separated into first and second groups, said first and second groups including a single layer of said second plurality of twisted pair conductors about said first and second soft support means, respectively, and wherein said first plurality of twisted pair conductors is separated into third and fourth groups, said third and fourth groups being embedded in said first and second soft support means, respectively.

7. The high speed telecommunication cable as claimed in claim 6 wherein said first and second soft support means each has an equal number of said second plurality of twisted pair conductors wrapped thereabout.

8. The high speed telecommunication cable as claimed in claim 6 wherein the number of said first plurality of twisted pair conductors in said third and fourth groups is unequal.

9. The high speed telecommunication cable as claimed in claim 1 wherein there are three at said soft support means, wherein said first plurality of twisted pair conductors is separated into three groups, each group being embedded in one of said three soft support means, two of said three soft support means have seven of said second plurality of twisted pair conductors wound thereabout and one of said three soft support means has eight of said second plurality of twisted pair conductors wound thereabout.

10. The high speed telecommunications cable as claimed in claim 9 further comprising:

a fourth soft support means not having any of said first plurality of twisted pair conductors embedded therein, said three soft support means having said second twisted pair conductors wound thereabout surrounding said fourth soft support means.

11. The high speed telecommunication cable as claimed in claim 10 wherein each of said three soft support means encompasses at least one of said first plurality of twisted pair conductors.

12. The high speed telecommunication cable as claimed in claim 11 wherein said fourth soft support means encompasses at least one of said first plurality of twisted pair conductors.

13. The high speed telecommunication cable as claimed in claim 9 wherein each of said three soft support means encompasses at least one of said first plurality of twisted pair conductors.

14. The high speed telecommunication cable as claimed in claim 1 wherein said soft support means is formed from flame retardant polypropylene.