Pipe joints or couplings – Packed – Wedge
Patent
1987-01-15
1989-02-21
Callaghan, Thomas F.
Pipe joints or couplings
Packed
Wedge
2853825, 2853827, F16L 1904
Patent
active
048059455
ABSTRACT:
A method and apparatus are provided for joining tubes. The tubes have ends which are deformed within sleeves each sleeve having an interior channel formed by applying pressure to one end of the tube, a mandrel being temporarily positioned within the tube. Sockets are fitted on the exterior of the tube; pressure is applied to the end portions of the tubes to force the wall of the tube to deform in the area of the interior channels in the sleeve to thereby anchor the tubes within the sleeve. Once the mandrel and the sockets are removed from the interior and exterior of the tube and sleeve, respectively, the sleeve will be clamped within a joint member via a nut which is screwed onto the exterior surface of the sleeve.
REFERENCES:
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patent: 3467414 (1969-09-01), Downing
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patent: 4147385 (1979-04-01), Van Der Velden
patent: 4390303 (1983-06-01), Mallet
Bonnargent Alain
Foucault Joel
Callaghan Thomas F.
Ermeto-Hydexco
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