Pipe flange

Details Pipe flange Pipe flange

1979-08-09

1982-06-29

Callaghan, Thomas F.

Pipe joints or couplings

With casing, lining or protector

Lined

285286, 285329, 285363, 285416, F16L 914, F16L 2300

Patent

active

043369588

ABSTRACT:
A pipe flange coupling having a carbon steel body and flange with a bore extending through the body and flange and a bolt circle in the flange, a lining throughout the entire length and circumference of the bore, and a sealing surface on the flange radially inward of the bolt circle and radially outward of the bore, the sealing surface and lining being of corrosion resistant metal fusion welded to each other and to the flange and bore and providing a structurally unitary body which meets the pressure code and also protects the carbon steel from corrosion.

REFERENCES:
patent: 171440 (1875-12-01), Smith
patent: 1276394 (1918-08-01), Monrath
patent: 2062305 (1936-12-01), Gillette
patent: 2070291 (1937-02-01), McHugh
patent: 2157357 (1939-05-01), Straty
patent: 2216033 (1940-09-01), Hopkins
patent: 2308307 (1943-01-01), Robinson
patent: 2356047 (1944-08-01), Geisinger et al.
patent: 3100656 (1963-08-01), MacArthur
patent: 3131642 (1964-05-01), Geer et al.
patent: 3307860 (1967-03-01), Blount et al.
patent: 3454740 (1969-07-01), Foulquier et al.
patent: 3476586 (1969-11-01), Valtcher et al.
patent: 3909049 (1975-09-01), Blatnica
patent: 4026583 (1977-05-01), Gottlieb

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