Pipe joints or couplings – With casing – lining or protector – Lined
Patent
1979-11-28
1981-09-15
Callaghan, Thomas F.
Pipe joints or couplings
With casing, lining or protector
Lined
285158, 285173, 285286, 285351, 285357, F16L 4100
Patent
active
042893348
ABSTRACT:
The present invention relates to a steel socket connection for an internally enamelled steel vessel in which presentation of bare ferrous metal to the contents of the vessel is reduced to a minimum. The socket comprises a parallel portion adjacent the vessel, an internally threaded portion remote from the vessel and a seat located between the parallel and threaded portions, said steel socket being internally enamelled except for the internally threaded portion thereof.
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patent: 524754 (1894-08-01), Chable
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patent: 986164 (1911-03-01), Glennan
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patent: 2452262 (1948-10-01), Rosan
patent: 2630338 (1953-03-01), Snyder
patent: 3212796 (1965-10-01), Neuschotz
patent: 3307860 (1967-03-01), Blount et al.
patent: 3336054 (1967-08-01), Blount et al.
patent: 3858911 (1975-01-01), Martin
patent: 3894757 (1975-07-01), Best
Callaghan Thomas F.
S. W. Hart & Co. Pty. Ltd.
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