Pipes and tubular conduits – Combined – With end structure
Patent
1977-04-11
1978-11-21
Aegerter, Richard E.
Pipes and tubular conduits
Combined
With end structure
138130, 285149, F16L 1108
Patent
active
041261577
ABSTRACT:
A pair of coupling collars are fixed on each end of a tubular mandrel. Each such collar carries a plurality of fixed bolt-hole sleeves projecting in a direction axially of the hose. Layers of rubber tape and continuous steel reinforcing cords are sequentially wound in a helical fashion on the mandrel and at the collar are brought radially out along the collar and circumferentially over at least one of the bolt-hole sleeves before passing back over the next tape layer to the other collar where the collar securing winding is repeated and so on until the required structure is built up. After the final outer tape layer is in place a split collar is placed over the hose and bolted on the inside of each of the fixed outer coupling collars to clamp the windings in place. The section is finished off by laying down tape layer seals over the area between the collars. The mandrel with its green hose section is then kettle-cured. Before shipping, polyurethane foam filled float collars of ABS are attached to the section.
In this system of installing couplings, the outer coupling collars are held in place by the tension in the continuous cords.
REFERENCES:
patent: 2146218 (1939-02-01), Kimmich et al.
patent: 2237490 (1941-04-01), Knowland
patent: 2277397 (1942-03-01), Graham
patent: 2298736 (1942-10-01), Harpfer
patent: 2298738 (1942-10-01), Kimmich et al.
patent: 2371363 (1945-03-01), Smith
patent: 2522165 (1950-09-01), Crom
patent: 2911236 (1959-11-01), Thibault
patent: 3508768 (1970-04-01), Hogan
patent: 3866792 (1975-02-01), Minke
patent: 3899006 (1975-08-01), Champleboux et al.
Aegerter Richard E.
Bryant III James E.
Vredestein N.V.
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