Pipe joints or couplings – Adjustable angle
Patent
1980-12-09
1983-09-13
Arola, Dave W.
Pipe joints or couplings
Adjustable angle
285286, 2853342, 2853344, 285351, 285363, 285416, F16L 2706
Patent
active
044037953
ABSTRACT:
A flange union is disclosed which is provided with opposed recessed female seats carried by the terminal inner ends of the flange members. A replacable sealing ring having an annular convex sealing surface is positioned between the annular cooperating sealing surfaces of the female seats. The configuration of the sealing surfaces is such that an annular metal-to-metal line seal of minimum surface area is formed closely adjacent the internal diameter of the bore. This results in the need for markedly less stress and strain on the flange bolts to achieve and maintain the sealing pressure. The flange union will seal effectively with the flange members being either in or out of alignment.
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patent: 211226 (1938-03-01), Brand
patent: 816155 (1906-03-01), Dean
patent: 935412 (1909-09-01), Rust
patent: 960899 (1910-06-01), Guyer
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patent: 1475867 (1923-11-01), Peterson
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patent: 2340732 (1944-02-01), Bruno
patent: 3567258 (1971-03-01), Scaramucci
patent: 3752509 (1973-08-01), Stafford
patent: 3851902 (1974-12-01), Robinson
Arola Dave W.
Landingham, Jr. L. S. Van
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