Pipe joints or couplings – Serial,relatively movable portions – Serial diverse single flow path or line
Patent
1997-06-17
1999-01-26
Arola, Dave W.
Pipe joints or couplings
Serial,relatively movable portions
Serial diverse single flow path or line
285368, 285422, 285423, F16L 5500
Patent
active
058630805
ABSTRACT:
A bell and spigot slip-joint assembly comprises: a spigot having an end and a circumferential flange ring integral with the spigot and which radially and outwardly extends from the spigot, the flange ring being spaced from the spigot end to define a spigot end portion extending between the flange ring and the spigot end; a tubular member having an enlarged bell end for receiving therein the spigot end portion; a gasket ring tightly received between the exterior surface of the spigot end portion and the interior surface of the bell end; a first restraint ring positioned around the spigot on the side of the flange ring opposite the spigot end portion and contacting or closely adjacent to the flange ring, the first restraint ring having an inside diameter less than the outside diameter of the flange ring; a second restraint ring positioned around the tubular member contacting or closely adjacent to the bell end and having an inside diameter less than the outside diameter of the bell end; and connecting means for connecting the first restraint ring to the second restraint ring.
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patent: 5509699 (1996-04-01), Himmelberger
Arola Dave W.
Cross Ryan N.
Phillips Petroleum Company
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