Pipes and tubular conduits – With closures and plugs – Inflation stem type
Patent
1978-12-11
1980-06-03
Aegerter, Richard E.
Pipes and tubular conduits
With closures and plugs
Inflation stem type
138 96R, 138 96T, 405255, F16L 2102
Patent
active
042057078
ABSTRACT:
A pipe or rod protector includes structure to interfit the pipe or rod end, such structure including an end cap and a split ring tightenable to retain the structure on the pipe or rod end.
REFERENCES:
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patent: 2156221 (1939-04-01), Kahn et al.
patent: 2253729 (1941-08-01), Schuetz
patent: 2316013 (1943-04-01), Mulholland
patent: 2709456 (1955-05-01), Hillix
patent: 2808954 (1957-10-01), Smith
patent: 3606073 (1971-09-01), Burke
patent: 3713463 (1973-01-01), Bywater
patent: 3814135 (1974-06-01), Hetzer et al.
patent: 4020873 (1977-05-01), Palarino
patent: 4079756 (1978-03-01), Smiley
patent: 4111235 (1978-09-01), Gray
Aegerter Richard E.
Bryant III James E.
Haefliger William W.
Hydril Company
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