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US 4,289,721 AGranted
Method of connecting cables
AssigneeSumitomo Electric Industries, Ltd.
InventorKojiro Ishise
Life of this patent
Estimating the term…
Abstract
A method of connecting two cables where a reinforcing insulation layer is formed over a connection part of the conductors of the cables. A heat-shrinkable tube is provided on the reinforcing insulation layer by heating the heat-shrinkable tube to form a cable connection part. The cable connection part is shaped by heating while being pressurized in a fluid medium.
Claims19
A method of connecting two cables each having an internal conductor comprising the steps of:
- connecting spaced ends of said conductors with a conductive connector, forming a reinforcing insulation layer over said connector for the conductors of said cables by pouring insulation material in a metal mold at a material pouring rate corresponding to the ratio (Q/t) of an insulation material pouring speed Q (cc/min) to time t (min) required for pouring said insulation material into said metal mold, wherein said ratio is not less than five;
- said insulation material comprising polyethylene blended with a crosslinking agent;
- providing a heat-shrinkable tube on said reinforcing insulation layer by heating said heat-shrinkable tube to form a cable connection part;
- and forming said cable connection part by heating while being pressurized in a fluid medium.
1 more element
Dependencies are inferred from the claim text.