Pipes and tubular conduits – Flexible – Corrugated
Patent
1980-10-20
1983-10-18
Hoag, Willard E.
Pipes and tubular conduits
Flexible
Corrugated
138172, 405157, F16L 1104, F16L 1108, F16L 1112
Patent
active
044100124
ABSTRACT:
A radially compliant acoustic line array hose with improved toughness and wear resistance, suitable for use in towed acoustical line array sonars. The hose comprises a long extruded cylindrical tubing of a soft flexible grade of geophysical, plasticized polyvinyl chloride material with longitudinal ribs of a stiffer, harder grade of geophysical plasticized polyvinyl chloride material located at or near the tubing surface, and spaced uniformly around the circumference of the tubing. The ribs are melt-bonded to the softer thermoplastic material while each is in their respective melt stages during the extrusion process.
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Urick, "Principles of Underwater Sound", McGraw-Hill (1967), pp. 322-342.
Hauptmann Robert O.
Redding John J.
Beers Robert F.
Hoag Willard E.
Lall Prithvi C.
McGill Arthur A.
The United States of America as represented by the Secretary of
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