Electric heating – Heating devices – Combined with diverse-type art device
Patent
1988-11-14
1990-02-06
Pellinen, A. D.
Electric heating
Heating devices
Combined with diverse-type art device
219492, 249 78, H05B 100
Patent
active
048990310
ABSTRACT:
A method of curing green concrete using electric heating elements that are pulsed on and off by a programmable controller that controls a power source wired to an electric power main. A temperature probe may be used to inform the programmable computer of the concrete's temperature.
REFERENCES:
patent: 3596351 (1971-08-01), Tilton et al.
patent: 3659077 (1972-04-01), Olson
patent: 3676641 (1972-07-01), Olson
patent: 3729614 (1973-04-01), Martinet
patent: 4238105 (1980-12-01), West
Dyer David F.
Evans Geoffrey S.
Pellinen A. D.
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