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Applicator and method for RF heating of material

  • US 8,729,440 B2
  • Filed: 03/02/2009
  • Issued: 05/20/2014
  • Est. Priority Date: 03/02/2009
  • Status: Active Grant
First Claim
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1. A radio frequency (RF) heater comprising:

  • a multiphase RF Alternating Circuit (AC) source;

    a plurality of petals arranged in side-by-side relation and having a concave shape to define a conically shaped hydrocarbon resource container configured to RF heat a hydrocarbon resource therein, each petal being electrically isolated from adjacent petals; and

    a plurality of conductors electrically coupling said multiphase RF AC source to said plurality of petals;

    said multiphase RF AC source being configured to supply multiphase RF AC to each petal and being 360/x degrees out of phase with respect to the multiphase RF AC at a next adjacent petal, wherein x is a number of phases of the multiphase RF AC.

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