Electricity: conductors and insulators – With fluids or vacuum – With cooling or fluid feeding – circulating or distributing
Patent
1973-03-15
1977-02-01
Goldberg, E. A.
Electricity: conductors and insulators
With fluids or vacuum
With cooling or fluid feeding, circulating or distributing
174130, 174131R, H01B 734
Patent
active
040062872
ABSTRACT:
An electrical conductor particularly suitable for resistance welding equipment comprises an even number and at least four bunches of helically wound electrically conductive strands arranged in side-by-side contacting relation with a hollow central passage through the conductor and wherein the strands of each bunch are twisted in the opposite direction to the strands of the two bunches in contact therewith so as to provide zero electrical wear points in the cross section of the conductor. In one embodiment there are six bunches of strands surrounded by a further twelve bunches of helically wound strands arranged in side-by-side contacting relation with the strands of each outer bunch twisted in the opposite direction to the strands of the two outer bunches in contact therewith.
REFERENCES:
patent: 1943087 (1934-01-01), Potter
patent: 1999273 (1935-04-01), Austin
patent: 2197544 (1940-04-01), Atkinson
patent: 2217276 (1940-10-01), Hill
patent: 2222574 (1940-11-01), Roberston
patent: 3079460 (1963-02-01), Groue
patent: 3339012 (1967-08-01), Hutchins
Delta Metal Electronics Limited
Goldberg E. A.
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