Pipes and tubular conduits – Flexible – Distinct layers
Patent
1982-08-11
1984-10-02
Little, Willis
Pipes and tubular conduits
Flexible
Distinct layers
138141, F16L 1100
Patent
active
044742177
ABSTRACT:
Hose structure suitable for transport of highly abrasive media including at least two concentric tube layers of elastomeric material. The radially innermost tube layer material is of greater abrasion resistance than a tube layer radially outwardly thereof. A radially outer tube layer material is of greater resilience than that of the radially innermost tube layer. The tube layers may be made visually distinguishable, for example, by being of different colors, so as to serve as a wear indicator.
REFERENCES:
patent: 2624366 (1953-01-01), Pugh
patent: 2988130 (1961-06-01), Rittenhouse
patent: 3528457 (1970-09-01), Martin et al.
patent: 3550640 (1970-12-01), Wagner
patent: 3828112 (1974-08-01), Johansen et al.
Allen Terry F.
DeMarse Ernest W.
Kluss Karl K.
Sawyer John M.
Larson R. E.
Little Willis
Shifley C. F.
The Goodyear Tire & Rubber Company
Thompson R. D.
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