Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Patent
1986-02-17
1987-11-03
Paschall, M. H.
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
219301, 307 17, 307 87, 361 45, H05B 300, H05B 500
Patent
active
047045159
ABSTRACT:
A method for reducing voltages required by in-place proximity-effect circuits includes providing uninsulated conductors which extend from a main transformer station to remote feed-node locations for connection to insulated conductors within a heat-tracing pipe.
REFERENCES:
patent: 3523177 (1970-08-01), Ando
patent: 3632975 (1975-04-01), Ando et al.
patent: 3983360 (1976-09-01), Offermann
patent: 4204407 (1980-05-01), Smith
Chevron Research Company
Paschall M. H.
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