David L Mcneill

US Patent:

53998138, Mar 21, 1995

Filed:

Jun 24, 1993

Appl. No.:

8/082340

Inventors:

David B. McNeill - Winston-Salem NC
Jerry B. Kilpatrick - Greensboro NC

Assignee:

The Whitaker Corporation - Wilmington DE

International Classification:

H01B 1102
H01B 708

US Classification:

174117F

Abstract:

This invention is directed to a high performance electrical telecommunication transmission cable, particularly for undercarpet applications. More precisely, this invention is directed to a low-profile, high performance flat cable, where the cable may be subjected to potentially damaging compressive forces from walking on an overlying carpet. The cable comprises a plurality of conductors arranged as plural sets of twisted pairs, with each conductor consisting of an inner conductive core surrounded by insulation, an outer dielectric member having plural longitudinally extending chambers, where each chamber includes two sets of the twisted pairs, spaced-apart and arranged in side-by-side fashion and generally parallel. The height of the chamber is dimensioned to exceed the wrap diameter of a set of a twisted pair of conductors. Adjacent chambers include a dielectric vertically disposed wall therebetween to provide resistance to compressive forces, and the twisted pairs therewithin exhibit a preferred twist on the order of 1/2 to 1 inch lay length.