Pipes and tubular conduits – Flexible – Braided – interlaced – knitted or woven
Patent
1979-08-27
1982-08-10
Bryant, III, James E.
Pipes and tubular conduits
Flexible
Braided, interlaced, knitted or woven
138126, 138130, 138174, F16L 1112
Patent
active
043433332
ABSTRACT:
An improved flexible reinforced hose (14) for use in the conveyance of fluids under pressure. The hose has a core tube (1) and an outer protective sheath (7). Disposed between the core tube and the sheath is a plurality of layers of reinforcement of which at least two of the layers comprise synthetic fibers having a tenacity of from about 12 to about 25 grams per denier and an elongation at break of from about 2% to about 8%. The hose is provided with improved resistance to pressure pulsation and flexing fatigue as a result of the said synthetic fiber layers being positioned in prescribed helically wound and/or braided combinations in conjunction with a prescribed twisted relationship that features the fibers closest to the core tube as a plurality of the same or different deniers of the fiber in the form of a plurality of cords having a twist of more than about 1.5 turns per inch and the fibers outwardly adjacent thereto as a plurality of the same or different deniers of the fiber having a twist of about 1.5 turns per inch or less.
REFERENCES:
patent: 940779 (1909-11-01), Bayne et al.
patent: 2128814 (1938-08-01), Gish
patent: 3011525 (1961-12-01), Randle et al.
patent: 3056429 (1962-10-01), Wilberg
patent: 3060973 (1962-10-01), Munar
patent: 3790419 (1974-02-01), Atwell
patent: 3905398 (1975-09-01), Johansen et al.
patent: 4196464 (1980-04-01), Russell
Bryant III James E.
Chrow A. E.
Eaton Corporation
Grace C. H.
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