Electric heating – Heating devices – Combined with diverse-type art device
Patent
1993-08-24
1994-11-08
Reynolds, Bruce A.
Electric heating
Heating devices
Combined with diverse-type art device
219201, 320 35, 429120, 429 62, H02J 700, H05B 360
Patent
active
053629426
ABSTRACT:
A battery heater uses the internal resistance of the battery as the battery heating element. In one embodiment, a DC battery charger and a programmable battery load, is used in a closed loop temperature control system. In another embodiment, a DC battery charger and a resistor or small auxiliary battery heater, is used in a closed loop temperature control system. The programmable load or the small auxiliary battery heater, is enabled during full charge, low temperature conditions. The resistor or small auxiliary heater serves to both heat the battery and draw down the battery charge. In yet another embodiment, an AC heater power supply and a DC battery charger, is coupled to the battery in a closed loop temperature control system.
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Scafidi Christopher J.
Vanderslice, Jr. William T.
Bramson Robert S.
InterDigital Technology Corporation
Jacobson Alan J.
Jeffery John A.
Pine Nicholson
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