Pipe joints or couplings – Pipe to discreet nipple or sleeve to plate – Ball and socket
Patent
1981-12-18
1984-11-27
Arola, Dave W.
Pipe joints or couplings
Pipe to discreet nipple or sleeve to plate
Ball and socket
285368, 285416, 285DIG2, 285413, F16L 2300
Patent
active
044847718
ABSTRACT:
A flange for connecting piping is disclosed which comprises a ring form which can be welded along its inner edge to a pipe, and a flange ring. The ring form and the flange ring are both preferably of U-shaped cross section. The flange ring has holes for the insertion of clamping bolts and, when the flange connection is tightened, contacts an outer rim of the ring form. The inner rim of the flange ring has a height which is greater by a predetermined length than the height of the outer rim of the ring form. The predetermined length is selected so that when the clamping bolts are tightened, the flanged or base portion of the flange ring contacts the outer rim of the ring form after elastic re-shaping of the flange ring has taken place.
REFERENCES:
patent: 3975468 (1976-08-01), Tuckey
patent: 4105227 (1978-08-01), Ekberg et al.
Arola Dave W.
Schulz & Company KG
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