Pipe joints or couplings – Packed – Socket
Patent
1981-12-30
1984-12-25
Callaghan, Thomas F.
Pipe joints or couplings
Packed
Socket
29447, 285381, 285422, F16L 2100
Patent
active
044899645
ABSTRACT:
A connector for joining pipe ends is provided having two memory metal lock rings which are heat-shrinkable about a pipe end and a memory metal rod/wedge ring, heat-shrinkable at a higher temperature or in a delayed mode, to secure the lock rings.
REFERENCES:
patent: 3730562 (1973-05-01), Viazzi
patent: 4314718 (1982-02-01), Broyles et al.
patent: 4379575 (1983-04-01), Martin
Ayers Ray R.
Kipp Robert M.
Callaghan Thomas F.
Shell Oil Company
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