Pipe joints or couplings – Deformed – Both members
Patent
1978-10-05
1981-08-04
Callaghan, Thomas F.
Pipe joints or couplings
Deformed
Both members
29516, 285397, 285398, F16L 1314
Patent
active
042818621
ABSTRACT:
A sleeve is used in a tubing joint assembly, usually an inner sleeve, with a tube telescoped over this inner sleeve. An outer sleeve may optionally be telescoped over the tube and the entire assembly. One of the sleeves has a lateral shoulder transverse to the axis of the sleeve and with this shoulder terminating in a sharp angled peripheral rib. The outer sleeve is inwardly compressed by two dies which have interdigitated teeth. This compresses the outer sleeve, where used, and compresses the tube at the peripheral ribs of the sleeve. The interdigitated teeth on the dies assure complete compression all the way around the periphery, between the tube and the sleeve with a lateral shoulder being formed on the tube to act against the lateral shoulder on the sleeve and thus longitudinally retain together these parts. Also a fluid pressure tight seal is established primarily at the sharp angled peripheral rib and its junction with the facing wall of the tube.
REFERENCES:
patent: 1954989 (1934-04-01), Eastman
patent: 2479499 (1949-08-01), Le Clair
patent: 3017203 (1962-01-01), Macleod
patent: 3188117 (1965-06-01), Press et al.
patent: 3477750 (1969-11-01), Powell
patent: 3689111 (1972-09-01), Osmun et al.
patent: 3744122 (1973-07-01), Ridenour et al.
patent: 3777354 (1973-12-01), Masters
patent: 4114930 (1978-09-01), Perkins et al.
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