Pipe with an external sealing body

Details Pipe with an external sealing body Pipe with an external sealing body

1977-05-17

1980-03-11

Moose, Jr., Harry E.

Electricity: electrical systems and devices

Discharging or preventing accumulation of electric charge

Of storage or hazardous area or fluid handling

174 47, 174110F, H05F 302

Patent

active

041931050

ABSTRACT:
A plastic pipe of a thermoplastic material, such as polyvinylchloride provided on its outside with a resilient sealing body of a polyurethane foam plastic, which has been foamed onto said outside and a layer of thermosetting resin with electrically conducting particles being between said body and the plastic pipe in order to ensure a proper conduction, the foam plastic body having a closed surface being integral with the foam plastic body.

REFERENCES:
patent: 2890724 (1959-06-01), Kennedy
patent: 3064073 (1962-11-01), Downing et al.
patent: 3359351 (1967-12-01), Bender
patent: 3385367 (1968-05-01), Kollsman
patent: 3394207 (1968-07-01), Andersen
patent: 3684816 (1972-08-01), Reighter
patent: 3790695 (1974-02-01), Floessel et al.
patent: 3943273 (1976-03-01), de Putter
patent: 3963856 (1976-06-01), Carlson et al.
patent: 4063429 (1977-12-01), Wilson

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