Method of end-to-end cable joining for use with small diameter,

Details Method of end-to-end cable joining for use with small diameter, Method of end-to-end cable joining for use with small diameter,

1981-07-06

1983-03-08

Husar, Francis S.

Metal working

Method of mechanical manufacture

Electrical device making

174 88R, 219137R, H01R 4300

Patent

active

043757200

ABSTRACT:
Cable ends (1 and 2) are to be joined. The cables are armored by stainless steel sheaths, and have two conductors (9 & 11, and 8 & 10 respectively) insulated by means of compressed mineral insulation (14). The cables are typically for thermocouples and have an outside diameter of a few millimeters. Joining proceeds as follows: The cable ends are reduced in diameter by swaging, e.g. with initial conical portions (5,4) followed by smaller diameter portions (7,6). The ends of the swaged portions are stripped to reveal the conductors which are joined end-to-end by welding. A longitudinally slotted length of tubing (3) is placed around the join, and the tubing is filled, via its slot, with powdered mineral insulation. The length of tubing 3 is then closed by welding, and the entire join is drawn down around the join to ensure that the entire joined cable is of uniform outside diameter.

REFERENCES:
patent: 2393935 (1946-01-01), Scott
patent: 3903595 (1975-09-01), Takada et al.

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