Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Patent
1983-05-03
1987-03-17
Kendell, Lorraine T.
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
174 41, 174 70A, 174 79, 428372, 428375, 428399, 428400, 428396, B32B 2734, D02G 300, H02G 1506
Patent
active
046507159
ABSTRACT:
Modern synthetic fibers, e.g. made of aromatic polyamides of high tensile strength have not achieved their potential for use as heavy-duty cables because of their smooth surface which gives rise to considerable difficulties in the transfer of high tensile forces, since they slip out of the clamping sleeves, and other force-transfer means based upon static friction, before reaching their ultimate tensile strength. This problem was solved in the invention by applying to the force-transmitting region thereof an impregnating material which breaks down into powder in the area to which the stress is applied, when the compressive or flexural stress exceeds the ultimate stress limit of the impregnating material. Particularly suitable for this purpose are natural resins, more particularly colophonium.
REFERENCES:
patent: 2331840 (1943-10-01), Little
patent: 2348552 (1944-05-01), Little
patent: 2561487 (1951-07-01), Bailhe
patent: 2819988 (1958-01-01), Smith
patent: 3498038 (1970-03-01), Shulver
patent: 3540203 (1970-11-01), Thoresen et al.
patent: 4202164 (1980-05-01), Simpson et al.
Organic Chemistry by Ray Q. Brewster, PhD, Prentice-Hall, Inc. (copyright 1948), pp. 777-778.
Daniel William J.
Kendell Lorraine T.
Kupferdraht-Isolierwerk AG Wildegg
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