Dean D Davis

US Patent:

45103461, Apr 9, 1985

Filed:

Sep 30, 1983

Appl. No.:

6/538067

Inventors:

Talmage P. Bursh - Marietta GA
Dean I. Davis - Omaha NE
John T. Slominski - Omaha NE
Raymond K. Swartz - Lilburn GA

Assignee:

AT&T Bell Laboratories - Murray Hill NJ
AT&T Technologies, Inc. - New York NY

International Classification:

H01B 1106

US Classification:

174 36

Abstract:

A cable which provides suitable shielding over a relatively wide range of frequencies includes a core (22), and inner shield (32), an outer shield (34) which engages electrically the inner shield, and a jacket (60). Each shield is a laminate which includes a metallic layer comprising a suitable metallic shielding material and a plastic layer. The inner shield has its plastic layer (38) disposed toward the core whereas the plastic layer (52) of the outer shield is oriented toward the jacket. Also, each shield is formed with an unjoined, longitudinal overlapped seam. In order to insure continued shielding when the cable is flexed, the longitudinal seams of the cable are displaced from each other as measured in a direction circumferentially of the core.