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Powered cartridges and other devices within housings

  • US 8,029,679 B2
  • Filed: 10/25/2010
  • Issued: 10/04/2011
  • Est. Priority Date: 10/17/2006
  • Status: Active Grant
First Claim
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1. A method of wirelessly supplying power to a filtering element, comprising:

  • providing a first conductive coil;

    providing a second conductive coil in said filtering element, wherein said first coil and second coil form overlapping concentric cylinders, said coils being operative for inducing electrical current to power at least one electronic component in said filtering element; and

    activating an alternating current to energize said first coil, said energized first coil inducing a current in said second coil, wherein said current induced in said second coil powers said at least one electronic component.

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