Electric heating – Inductive heating – With heat exchange
Patent
1993-11-08
1994-08-02
Leung, Philip H.
Electric heating
Inductive heating
With heat exchange
219629, 219675, H05B 610
Patent
active
053348192
ABSTRACT:
A water heater according to one embodiment of the invention includes a housing, a heating unit, and a pre-heating unit consisted of a transformer, a transistor, a heating coil, a rectifier that release heat for heating water when operated, the heating unit including a magnetic device and two stainless steel plates insulated from the magnetic device at two opposite sides, the stainless steel plates being heated by the magnetic force from the magnetic device to heat water passing through.
REFERENCES:
patent: 1577276 (1926-03-01), Whitten
patent: 2273037 (1942-02-01), Hothersall
patent: 4602140 (1986-07-01), Sobolewski
patent: 5262621 (1993-11-01), Hu et al.
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