Pipe couplings

Details Pipe couplings Pipe couplings

1983-03-30

1986-12-23

Callaghan, Thomas F.

Pipe joints or couplings

Packed

Wedge

2853827, 285917, 285923, F16L 1908

Patent

active

046308512

ABSTRACT:
The pipe coupling is of compression type and comprises a main body having externally threaded portions, a nut and at least one sleeve. The sleeve is formed with a ceramic coating layer on its entire surface.

REFERENCES:
patent: 2171217 (1939-08-01), Kreidel
patent: 2414995 (1947-01-01), Wurzburger
patent: 2819099 (1958-01-01), Rittle
patent: 2863679 (1958-12-01), Dunbar
patent: 3215457 (1965-11-01), Teeters
patent: 3490777 (1970-01-01), Emmerson
patent: 3499671 (1970-03-01), Osborne
patent: 3501158 (1970-03-01), Tillman, III
patent: 3643984 (1972-02-01), Bucceri
patent: 4076286 (1978-02-01), Spontelli

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