Electric heating – Heating devices – With heater-unit housing – casing – or support means
Patent
1991-01-14
1992-09-29
Walberg, Teresa J.
Electric heating
Heating devices
With heater-unit housing, casing, or support means
219212, H05B 334
Patent
active
051515776
ABSTRACT:
The harmful effects which build up in the bloodstream and in body fluids owing to cyclotron resonance caused by mains-powered heating appliances such as electric blankets are reduced by powering the appliance through a single-phase full-wave rectifier which converts 60 Hz ac into heating power that is 81% dc and 18% ac at 120 Hz. The rectifier can be incorporated in the blanket or within the housing of a switch, plug or power socket.
REFERENCES:
patent: 3255399 (1966-06-01), Parks
patent: 3683151 (1972-08-01), Mills
patent: 5036177 (1991-07-01), Pagliarini
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