Electroconductive fibrous material

Details Electroconductive fibrous material Electroconductive fibrous material

1986-09-19

1988-08-16

Sikes, William L.

Communications: radio wave antennas

Antennas

Mesh, woven, braided or multiple strip

343915, H01Q 136

Patent

active

047647795

ABSTRACT:
Disclosed is an electroconductive fibrous material comprising a composite yarn comprising a core yarn composed of at least one kind of fiber selected from organic fibers and inorganic fibers and a covering layer composed of a ribbon-shaped metal fiber spirally wound around the core yarn, the coverge of the ribbon-shaped metal fiber to the core yarn being at least 50%. The electroconductive fibrous material is used for a parabolic reflecting body of a parabolic antenna and as an electromagnetic were shielding material. A collapsible parbolic antenna is also disclosed which has a collapsible framework comprising a central shaft, a plurality of wing ribs rotatably pivoted on one point of the central shaft, a bracket slidably attached to the central shaft and a plurality of push-up ribs for connecting the wing ribs to the bracket, and a sheet supported by the wing ribs to cover spaces between adjacent wing ribs, which sheet is made of the electroconductive fibrous material.

REFERENCES:
patent: 2412562 (1946-12-01), Crawshaw
patent: 2494255 (1950-01-01), Morris et al.
patent: 2750321 (1956-06-01), Kappelman
patent: 3102268 (1963-08-01), Foley
patent: 4320403 (1982-03-01), Ebneth
patent: 4549187 (1985-10-01), Levy
patent: 4609923 (1986-09-01), Bean et al.
patent: 4647495 (1987-03-01), Kanayama et al.

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