Title: Methods of manufacturing an insulated conductor and product produced thereby

Abstract: A priorly used three layer insulation covering for conductors forming a drop wire for connecting aerial distribution cables to a subscriber's premises is replaced with a single layer insulation of a plasticized polyvinyl chloride composition. It has been found that the temperature of preheat of the conductors must fall with a critical range to control the adhesion of the composition to the conductors to be within a desired range of values. The adhesion of the composition to the conductors is important from the standpoint of the manner of installation and of strippability. The adhesion must be sufficient to facilitate support of the drop wire by a clamp customarily attached to the subscriber's premises. However, the adhesion must not be excessively high in that the forces required to strip the insulation from the conductors may damage the surfaces of the conductor.

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Inventors: George, Emanuel John (Atlanta, GA, US)
Salter, Joseph Lane (Lutherville, MD, US)
Sauer, Earl Salvator (Baltimore, MD, US)
Tidd, Jr., Charles Edward (Baltimore, MD, US)

Application Number: 412362
Filing Date: 1973-11-02
Publication_date: 1976-01-27
Assignee: Western Electric Company, Inc. (New York, NY)
Primary Class(es): 428/379 427/120, 427/318
Other Classes:
US Patent Ref:

2564194	Aug, 1951	de Nie et al.	260/45.
2609355	Sep, 1952	Winkler	260/45.
3141850	Jul, 1964	Lybeck	117/232.
3291857	Dec, 1966	Howerton	260/836.
3508963	Apr, 1970	Izumi et al.	117/232.
3513222	May, 1970	Speitel et al.	260/836.
3579608	May, 1971	DeCoste	260/837.
3623940	Nov, 1971	Gladstone et al.	117/93.
3657381	Apr, 1972	Speitel et al.	260/836.
3804669	Apr, 1974	Bockstie	117/232.

Other Refs:
Primary Examiner: Lusignan, Michael R.
Assistant Examiner:
Attorney: Somers; E. W.