Pipes and tubular conduits – End protectors – Threaded
Patent
1985-01-14
1987-04-07
Marcus, Stephen
Pipes and tubular conduits
End protectors
Threaded
F16L 5700
Patent
active
046552561
ABSTRACT:
Protectors are provided for both internally and externally threaded ends of a tubular member. Each protector includes a plastic and a metal member. The plastic member of each protector defines threads which are adapted to threadedly engage threads of the tubular member. Each metal member defines a projection that is adapted to be received by a recess formed in the plastic member. Each plastic member defines a channel that guides the metal projection to the recess as the metal and plastic members are joined together.
REFERENCES:
patent: 2225754 (1940-12-01), Mirfield
patent: 2864519 (1958-12-01), Crabbe
patent: 2980274 (1961-04-01), Gould
patent: 3531008 (1970-09-01), Achabal et al.
patent: 4126338 (1978-11-01), Coel et al.
Haibach William
Lasota Robert E.
Ampco-Pittsburgh Corporation
Ethridge Christine
Marcus Stephen
Thronson Mark
Yeager Robert D.
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