Pipe joints or couplings – Particular interface – Tapered
Patent
1975-04-23
1976-11-02
Callaghan, Thomas F.
Pipe joints or couplings
Particular interface
Tapered
85 46, 285334, 403343, F16L 2500
Patent
active
039892840
ABSTRACT:
A pipe joint includes pin and box members having interengaged threads characterized as producing hoop tension in the pin member and hoop compression in the box members.
REFERENCES:
patent: 671274 (1901-04-01), Fischer
patent: 1474375 (1923-11-01), Moore
patent: 2239942 (1941-04-01), Stone et al.
patent: 2267923 (1941-12-01), Johnson
patent: 2543100 (1951-02-01), Engh
patent: 3100656 (1963-08-01), MacArthur
Callaghan Thomas F.
Haefliger William W.
Hydril Company
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