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Electric powered device safe from harmful electromagnetic fields

  • US 5,170,043 A
  • Filed: 02/21/1991
  • Issued: 12/08/1992
  • Est. Priority Date: 02/21/1991
  • Status: Expired due to Fees
First Claim
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1. A method for reducing the hazardous effects of electromagnetic fields generated from electrically powered devices, comprising the steps of:

  • a. converting electric current flow to be uni-directional through a device while said device is operating,b. maintaining a constant current flow rate with respect to time during operation of said device,c. controlling power to an electrical load of the device by use of power controls, andd. changing said electric current flow rate gradually when operational load demands of said device require a change of current flow rate by filtering said current after said power controls.

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