Electric heating – Heating devices – Combined with diverse-type art device
Patent
1987-06-30
1989-01-17
Goldberg, E. A.
Electric heating
Heating devices
Combined with diverse-type art device
219527, 36 26, H05B 102
Patent
active
047989335
ABSTRACT:
A ski-boot heater has a heating resistor and a battery mounted in the boot and a socket is provided in the boot for connecting the resistor and the battery to an external voltage source. A control circuit enables the battery to be recharged with direct current when the socket is connected to an external AC or DC supply and when the battery is being recharged enables the resistor to be supplied with electrical power greater than that normally supplied to the resistor by the battery.
REFERENCES:
patent: 2571918 (1951-10-01), Meninger
patent: 3079486 (1963-02-01), Winchell
patent: 3443067 (1969-05-01), Morgan
patent: 3626152 (1971-12-01), Governale
patent: 3663796 (1972-05-01), Hines
patent: 3859496 (1975-01-01), Giese
patent: 4087675 (1978-05-01), Sansonetti
patent: 4273989 (1981-06-01), Hinton
patent: 4279255 (1981-07-01), Hoffman
patent: 4507877 (1985-04-01), Vaccari
Dolomite S.p.A.
Goldberg E. A.
Walberg Teresa J.
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