U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Plural conductor communication wire

Patent 4467138 Issued on August 21, 1984. Estimated Expiration Date: Icon_subject January 17, 2003. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

2014214

2212927

2663755

2950338

3297814

3549788

3600500

3676576

Composite optical fiber element for telecommunication cables
Patent #: 4009932
Issued on: 03/01/1977
Inventor: Ferrentino

Electric cable for communication purposes
Patent #: 4220812
Issued on: 09/02/1980
Inventor: Ney ,   et al.

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Inventor

Assignee

Application

No. 06/458300 filed on 01/17/1983

US Classes:

174/115, Dissimilar or auxiliary conducting elements174/117F, Flat or ribbon type174/41, With messenger cable174/70A, Aerial cable385/103, Having a central strength member385/141HAVING PARTICULAR OPTICAL CHARACTERISTIC MODIFYING CHEMICAL COMPOSITION

Examiners

Primary: Tolin, G. P.
Assistant: Nimmo, Morris H.

Attorney, Agent or Firm

International Classes

G02B 6/44 (20060101)
H01B 11/02 (20060101)
H01B 7/18 (20060101)
H01B 7/22 (20060101)
H01B 7/08 (20060101)

Abstract

A communication wire of flat construction has two or more pairs of communication gage polyolefin insulated wires, twisted along their length, disposed in groups on opposite sides and parallel to a conductive steel wire. The steel wire may be galvanized or copper clad. All of the foregoing are embedded in a PVC jacket with the PVC material bonded to the steel wire but unbonded to the insulated communication gage wires. Weakening lines permit separation into central and side parts with an intact PVC jacket on each part. When used as telephone drop wire the steel wire provides both physical support and electrical conductivity for supplemental or primary grounding. The wire shape and size permits use of existing hardware for installation. Alternatively, a group of wires on at least one side is replaced either by a coaxial cable or by one or more polyolefin jacketed optical fiber conductors.

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