Pipes and tubular conduits – Flexible – Corrugated
Patent
1975-12-30
1978-07-04
Aegerter, Richard E.
Pipes and tubular conduits
Flexible
Corrugated
138132, 138133, 138129, F16L 1108
Patent
active
040982980
ABSTRACT:
Flexible reinforced pressure and suction hose of the type in which a wire helix is sandwiched between inner and outer wall members including a strip of relatively hard material disposed between the wall members and wound intermediate the turns of the helix and spaced therefrom for forming a helical cavity between the wall members containing the helix and permitting movement of the helix therein. A stranded reinforcing layer may also be included between the wall members.
REFERENCES:
patent: 1005134 (1911-10-01), Balliett
patent: 2330651 (1943-09-01), Welger
patent: 2448485 (1948-08-01), Chernack
patent: 2558763 (1951-07-01), Lee
patent: 3076737 (1963-02-01), Roberts
patent: 3137319 (1964-06-01), St. John et al.
patent: 3210234 (1965-10-01), Baskin et al.
Aegerter Richard E.
Bryant III James E.
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