Prefabricated assembly for high tensile strength pipe connection

Details Prefabricated assembly for high tensile strength pipe connection Prefabricated assembly for high tensile strength pipe connection

1986-05-28

1987-10-06

Callaghan, Thomas F.

Pipe joints or couplings

Elbow

285242, 285158, F16L 3322

Patent

active

046978313

ABSTRACT:
A prefabricated assembly for forming a high tensile strength pipe connection is formed by providing a metallic muff and pressing one end of a pipe adapter made from plastic material into the muff. The metallic muff has an internal diameter formed with sawtooth projections which penetrate the material of the pipe adapter and the penetration is enhanced by inserting a smooth support sleeve into the pipe adapter, the support sleeve being stiffer than the pipe adapter and operating to effect a positive and frictionally locking connection. The opposite end of the pipe adapter may then be attached by welding or the like with a plastic material pipe to form thereby a tight connection at a utilization site.

REFERENCES:
patent: 867108 (1907-09-01), Carmer
patent: 2517606 (1950-08-01), Spender
patent: 3127672 (1964-04-01), Kretschmer
patent: 4295668 (1981-10-01), Louthan et al.
patent: 4524997 (1985-06-01), Ebert
patent: 4530520 (1985-07-01), Nyffeler et al.

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