Electrode apparatus for stray field radio frequency heating
AssigneeCodaco, Inc.
InventorTimothy D. Gorbold
Life of this patent
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Abstract
An RF heating system for generating precision stray RF fields that can be used to heat materials. The RF heating system includes an RF power supply for generating RF signals and an electrode apparatus that is coupled to the RF power supply. An electrode apparatus according to the present invention has many advantages over existing electrode apparatuses. For example, the electrode apparatus is easier to manufacture, easier to duplicate, easier to control the manufacturing tolerances on the electrode system, and easier to correctly place and design the resulting RF stray field.
Claims23
An electrode apparatus for generating stray fields, comprising:
- a first element;
- and
- a second element, wherein
- the first element comprises an elongated member and an elongated electrode, the elongated electrode having one end connected to the elongated member,
- the second element comprises a base and an electrode plate that is connected to and extends outwardly from a surface of the base, and
- the first element and the second element are positioned such that the elongated electrode and the electrode plate are spaced apart but interdigitated so that the elongated electrode is not directly over any portion of the electrode plate, but is directly over at least a portion of the base.
An electrode system for generating stray fields, comprising:
- an elongated electrode;
- and
- an electrode plate having a first face and a second face, wherein
- the first face of the electrode plate faces in a direction that is substantially perpendicular to the longitudinal axis of the elongated electrode,
- the elongated electrode is spaced apart from the first face of the electrode plate,
- the height of the electrode plate is greater than the thickness of the elongated electrode, and
- the length of the electrode plate is shorter than the length of the elongated electrode.
An RF heating system, comprising:
- an RF power supply;
- and
- electrode apparatus means connected to the RF power supply for generating stray RF fields.
An RF heating system, comprising:
- an RF signal generator;
- and
- an electrode apparatus electrically coupled to the RF signal generator, wherein the electrode apparatus comprises an element comprising a first lateral member, a second lateral member and at least one elongated electrode having a first end and a second end, wherein the first end is attached to the first lateral member and the second end is attached to the second lateral member.
Dependencies are inferred from the claim text.