Pipe joints or couplings – Particular interface – Tapered
Patent
1990-06-15
1990-11-13
Arola, Dave W.
Pipe joints or couplings
Particular interface
Tapered
285355, 285369, 285910, F16L 2500
Patent
active
049696718
ABSTRACT:
A gas-tight joint for pipe linings and risers inside a bore, consisting of a neck with an outside thread and of a matching collar with an inside thread, with a groove in the vicinity of the thread on the collar and/or of the thread on the neck to accommodate a deformable gasket that, when the joint is screwed tight, is demarcated and deformed by the base of the groove in the neck and/or in the collar and by the contour of the thread on the other component. The cross-sectional area demarcated by the base of the groove in the neck and/or collar and by the contour of the thread on the other component once the two components have been screwed together remains constant along the groove and is equal to or larger than the cross-sectional area of the deformable gasket before the components are screwed together.
REFERENCES:
patent: 1168196 (1916-01-01), Hall
patent: 2380690 (1945-07-01), Graham
patent: 2980451 (1961-04-01), Taylor et al.
patent: 3201155 (1965-08-01), Billeter et al.
patent: 3540065 (1970-11-01), Gidner et al.
patent: 3850461 (1974-11-01), Fujioka et al.
patent: 3879071 (1975-04-01), Gockler
patent: 4253687 (1981-03-01), Maples
patent: 4703959 (1987-11-01), Reeves et al.
patent: 4711474 (1987-12-01), Patrick
Duisberg Jurgen
Gross Heinz
Koch Friedrich-Otto
Lang Matthias
Peeck Adolf
Arola Dave W.
Fogiel Max
Hoechst Aktiengesellschaft
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