Electricity: conductors and insulators – Conduits – cables or conductors – Conductive armor or sheath
Patent
1982-04-14
1984-03-27
Truhe, J. V.
Electricity: conductors and insulators
Conduits, cables or conductors
Conductive armor or sheath
174107, H01B 718
Patent
active
044396325
ABSTRACT:
A cable which is capable of being made in a large pair size and yet which has excellent mechanical properties that maintain its integrity notwithstanding extremes in temperature during installation and shipping as well as during the rigors of installation includes a sheath system having a corrugated steel outer shield that is adhesively bonded to a plastic jacket. The corrugated steel shield which is formed to have a longitudinal overlapped seam that is preferably unsealed encloses an aluminum inner shield that in turn encloses a multiconductor core. Advantageously, the sheath system includes a plastic jacketing material which is capable of resisting biaxial stresses which are aggravated in a bonded sheath system. This results in jacket integrity about the longitudinal seam of the outer shield notwithstanding a notched cross-section and an unsupported bridged portion of the plastic jacket adjacent to the seam. Of additional benefit is a further characterization of the plastic as being one which because of its relatively low elastic modulus at conventional extrusion times and temperatures is caused to fill substantially the corrugations of the outer shield. The jacket plastic forms a surface-to-surface bond with the shield that is sufficient to prevent delamination of the outer shield and the jacket and to prevent buckling of the jacket during exposure to temperature extremes.
REFERENCES:
patent: 2589700 (1952-03-01), Johnstone
patent: 3340353 (1967-09-01), Milder
patent: 3376378 (1968-04-01), Bullock
patent: 3459877 (1969-08-01), Bullock et al.
patent: 3551586 (1970-12-01), Dembiak et al.
patent: 3629489 (1971-12-01), Jachimowicj et al.
patent: 3681515 (1972-08-01), Mildner
patent: 3703605 (1972-11-01), Dembiak et al.
patent: 3711621 (1973-01-01), Jachimowicj
patent: 3745232 (1973-07-01), Johnson et al.
patent: 3824330 (1974-07-01), Lang
patent: 3826862 (1974-07-01), Ichiba et al.
patent: 4035211 (1977-07-01), Bill et al.
patent: 4109099 (1978-08-01), Dembiak et al.
patent: 4132857 (1979-01-01), Scarola et al.
patent: 4151365 (1979-04-01), Hacker
patent: 4292463 (1981-09-01), Bow et al.
patent: 4322574 (1982-03-01), Bow et al.
patent: 4328394 (1982-05-01), Aloisio, Jr. et al.
Metcalf, E. D., "A Bonded Non-Corrugated Aluminum/Polyethylene Sheathing System for Telephone Cable"; Proceedings of the 21st International Wire and Cable Symposium; Dec. 5-7, 1972; pp. 235-239.
Yanizeski, G. M. et al., "Predicting Fracture Creep; and Stiffness Characteristics of Cable Jackets from Material Properties", Proceedings of the 25th International Wire and Cable Symposium; Nov. 16-18, 1976, pp. 272-280; Bell Laboratories.
Brockway, G. S. et al., "Elastic State of Stress in a Stalpeth Cable Jacket Subjected to Pure Bending", Bell System Technical Journal vol. 57, No. 1, Jan. 1978.
Aloisio, Jr. Charles J.
Brockway, II George S.
Levy Alvin C.
Schneider Randy G.
Yanizeski George M.
Bell Telephone Laboratories Inc.
Nimmo Morris H.
Somers E. W.
Truhe J. V.
Western Electric Co. Inc.
LandOfFree
Bonded sheath cable does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Bonded sheath cable, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bonded sheath cable will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1757204