Prestressed tube and tube joint

Details Prestressed tube and tube joint Prestressed tube and tube joint

1986-01-13

1988-10-04

Kyle, Deborah L.

Ordnance

Accelerating

89 15, 89 16, 138153, 138155, 138172, 285 96, 285100, 285384, 403 5, 403 15, F41F 102, F16L 1700, F04F 108

Patent

active

047748729

ABSTRACT:
A joint is provided for joining together two sections of a tube wherein the sections are prestressed by a surrounding pressure medium to press the sections together and to resist forces tending to separate the sections and the bursting pressure inside the tube. The pressure medium can be a resin which can be pressurized and subsequently cured or a fluid. The outside diameter of each section, at and near the end to be joined, is enlarged. A coupling means encircles the enlarged portions and couples the two sections together. One or more expandable pressure cavities located within said coupling means and/or within the enlarged portions have the general shape of a flared annuli. The pressure medium fills and expands the pressure cavities and, when pressurized, exerts stresses compressing both sections together at the joint and also applies relatively uniform radial stress in the vicinity of the end of each section.

REFERENCES:
patent: 473462 (1892-04-01), Hogan
patent: 1186813 (1916-06-01), McFerran
patent: 1320110 (1919-10-01), Aydukovich
patent: 1421435 (1922-07-01), Fauchon-Villeplee
patent: 3228298 (1966-01-01), Grandy et al.
patent: 3713204 (1973-01-01), Arnold
patent: 4264229 (1981-04-01), Falk et al.
patent: 4341484 (1982-07-01), Peterson et al.
patent: 4424734 (1984-01-01), Janssen et al.
patent: 4425050 (1984-01-01), Durand
patent: 4549581 (1985-10-01), Unno et al.

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