Electricity: conductors and insulators – Conduits – cables or conductors – Combined
Patent
1974-03-04
1976-03-09
Askin, Laramie E.
Electricity: conductors and insulators
Conduits, cables or conductors
Combined
174 47, 285 55, 285231, 317 2J, F16L 1112, H05F 302, F16L 4706
Patent
active
039432734
ABSTRACT:
A conducting plastic pipe system comprising a male plastic pipe part and a female plastic pipe part with conducting covering layers which are interconnected by means of a conducting sealing ring between the male and female part. In case of outer covering layers on the pipe part the covering layer extends onto the inner side of the muff end of the female pipe part.
REFERENCES:
patent: 2146641 (1939-02-01), McWane
patent: 3070132 (1962-12-01), Sheridan
patent: 3152220 (1964-10-01), Gallacher
patent: 3249685 (1966-05-01), Heflin, Jr.
patent: 3290426 (1966-12-01), Barrentine
patent: 3329764 (1967-07-01), Tanges, Jr.
patent: 3515396 (1970-06-01), MacVaugh
patent: 3580983 (1971-05-01), Jackson
Askin Laramie E.
Wavin B.V.
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