Electric powered device safe from harmful electromagnetic fields

Details Electric powered device safe from harmful electromagnetic fields Electric powered device safe from harmful electromagnetic fields

1991-02-21

1992-12-08

Walberg, Teresa J.

Electric heating

Heating devices

With heater-unit housing, casing, or support means

219212, H05B 334

Patent

active

051700433

ABSTRACT:
An electric powered device and method includes of a power control system (24), an alternating current to direct current converter (30) and a direct current filtering system (36). After the incoming power has been processed by these sections, the power is provided for use at the load for the intended function of the electrical system (FIG. 1). The by-pass capacitors (38) provide additional protection by grounding extraneous alternating currents at ground potential (42). The principle method here is to hold the current as steady and constant as possible to maintain a constant electromagnetic field. This process renders electromagnetic fields safe from potential hazards. Whenever current levels need to be changed for control purposes, the rates of this change are reduced as much as possible in order to reduce any stresses imposed upon any biological systems immersed in the electromagnetic field generated by the device in use.

REFERENCES:
patent: 3555398 (1971-01-01), Nestorovic
patent: 3783367 (1974-01-01), Yamamoto
patent: 3869566 (1975-03-01), Smith
patent: 4013936 (1977-03-01), Hesler
patent: 4298924 (1981-11-01), Genuit
patent: 4888675 (1989-12-01), Kumar
patent: 4931625 (1990-06-01), Marlinski
patent: 5036177 (1991-07-01), Pagliarini

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