Pipes and tubular conduits – Flexible – Spirally wound material
Patent
1977-04-28
1979-02-20
Aegerter, Richard E.
Pipes and tubular conduits
Flexible
Spirally wound material
138122, 138174, F16L 1108
Patent
active
041401549
ABSTRACT:
A flexible hose comprising a soft hose main body, first helical rigid reinforcing means embedded partially or wholly in the soft hose main body and having a large cross sectional area, and second helical rigid reinforcing means embedded in the wall of the soft hose main body and having a smaller cross sectional area than the first helical rigid reinforcing means. The combination of the reinforcing means having different cross sectional areas gives the hose sufficient flexibility and strength against flattening and against pressure.
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Aegerter Richard E.
Bryant III James E.
Greigg Edwin E.
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