Stranded cable and method of making
Assignee3M Innovative Properties Company
InventorsDouglas E. Johnson, Tracy L. Anderson
Life of this patent
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Abstract
A stranded cable that includes a plurality of brittle load bearing wires and a means for maintaining the stranded arrangement of the brittle wires. Because the load bearing wires are brittle, they cannot be sufficiently deformed during conventional cable stranding processes in such a way as to maintain their helical arrangement. Therefore, the means for maintaining the helical arrangement of the stranded wires allows the stranded cable to be conveniently provided as an intermediate article or as a final article. When used as an intermediate article, it may be later incorporated into a final article such as overhead power transmission cables. The maintaining means may be a tape, an adhesive tape, or a binder applied to the stranded wires.
Claims14
A stranded cable, comprising:
- a plurality of brittle wires, wherein said brittle wires are stranded about a common longitudinal axis, and wherein said brittle wires have a significant amount of elastic bend deformation;
- and
- maintaining means for maintaining said elastic bend deformation of said wires, wherein the outer diameter of said stranded cable including said maintaining means is no more than 110% of the outer diameter of said plurality of stranded brittle wires excluding said maintaining means.
Dependencies are inferred from the claim text.