Insulated wire termination, method, and machine
First Claim
1. A method of joining at least two elongated insulated metal wires comprising:
- placing the insulated wires longitudinally in an elongated metal tube having a length less than that of the wires and having an inner surface,applying fusing pressure to deform the tube and compress the insulated wires and the tube inner surface together such that the insulated wires are pressed against other insulated wires or other insulated wires and the inner surface, andafter initiating and during said applying fusing pressure step, applying to the deformed tube fusing heat and current to remove the wire insulation from the metal wires and to soften the tube and wire metals while the same are under said fusing pressure, said heat and current being insufficient to melt the tube or wire metals.
1 Assignment
0 Petitions
Accused Products
Abstract
A method, machine and termination for connecting two or more insulated wire ends comprises placing them in a metal tube held between fusing electrodes. The electrodes are shaped to deform the tube and wires therein with the application of fusing pressure. During fusing, pressure builds first to press the assembly together, then heat and current are applied as the tube and internal wires are compressed. Fusing current first flows from a longitudinal region of the tube equally in both direction through the tube metal to soften the tube and distribute the fusing heat broadly. As the wire insulation is burned off or flows away, current also passes through the bare wire ends to aid the fusing process. For tinned copper tubes, some of the inside tin layer flows to wet copper surfaces and dissolve copper impurities. Some tin flows to seal small spaces between the fused wires. Some of the tin on the outside surface and inside surface of the tube may vaporize. A fusing machine is also disclosed for carrying out the method that is suspended from a standard retractable winch cable so that the electrodes can be easily positioned in free space.
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Citations
12 Claims
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1. A method of joining at least two elongated insulated metal wires comprising:
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placing the insulated wires longitudinally in an elongated metal tube having a length less than that of the wires and having an inner surface, applying fusing pressure to deform the tube and compress the insulated wires and the tube inner surface together such that the insulated wires are pressed against other insulated wires or other insulated wires and the inner surface, and after initiating and during said applying fusing pressure step, applying to the deformed tube fusing heat and current to remove the wire insulation from the metal wires and to soften the tube and wire metals while the same are under said fusing pressure, said heat and current being insufficient to melt the tube or wire metals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of joining at least two insulated metal wires comprising:
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placing the insulated wires longitudinally in an elongated metal tube having a longitudinal axis, applying fusing pressure to deform the tube and compress the insulated wires and the tube interior together, and applying to the deformed tube fusing heat and current to remove the wire insulation from the metal wire and soften the tube and wire metals while the same are under said fusing pressure, and wherein said tube comprises a continuous cylinder open at both ends and said at least two wires comprise a plurality of magnet wires.
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10. A method of joining at least two insulated metal wires comprising:
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placing the insulated wires longitudinally in an elongated metal tube having a longitudinal axis, applying fusing pressure to deform the tube and compress the insulated wires and the tube interior together, and applying to the deformed tube fusing heat and current to remove the wire insulation from the metal wire and soften the tube and wire metals while the same are under said fusing pressure and wherein said step of placing comprises placing the at least two insulated wires into one end of the metal tube and placing at least two wires into the other end of the metal tube. - View Dependent Claims (11, 12)
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Specification