Pipes and tubular conduits – Combined – With end structure
Patent
1978-09-12
1980-02-19
Schmidt, Frederick R.
Pipes and tubular conduits
Combined
With end structure
138 99, 138110, 138141, 156 86, 156289, 174DIG8, F16L 5802
Patent
active
041889797
ABSTRACT:
Thermoshrinkable or thermoexpansive tubes for corrosion prevention or lining of piping are disclosed which have their inner and/or outer walls covered with at least one protective cover to keep them clean from dust, dirt, water or any other foreign matter which might interfere with adhesion to the pipe connection, thus causing corrosion or poor lining.
REFERENCES:
patent: 2599359 (1952-06-01), Banks et al.
patent: 2664373 (1953-12-01), Reilly
patent: 3415287 (1968-12-01), Heslop et al.
patent: 3563573 (1971-02-01), Crompton
Komura Minoru
Moriyama Yasuhiro
Nakamura Syuichi
Ogawa Satoshi
Ueno Tomihisa
Nitto Denki Kogyo Kabushiki Kaisha
Osaka Gasu Kabushiki Kaisha
Schmidt Frederick R.
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