Method and apparatus for electromagnetic exposure of planar or other materials
AssigneeIndustrial Microwave Systems, L.L.C.
InventorsJ. Michael Drozd, William T. Joines
Life of this patent
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Abstract
A path for a material passes through an opening and along a segment through an off-peak region of an electric field. An E-plane bend delivers an electromagnetic wave to the segment. A standing wave is used to heat the material. The peaks or valleys are pushed or pulled by a movable surface or by changing the frequency of the electromagnetic wave. A rectangular choke flange is used at the opening to the segment. A curved segment connects the segment to another segment for heating the material. According to another aspect of the invention, a segment is used to heat just the edge of a planar material.
Claims27
A device for heating a material, the device comprising:
- a segment having a first conductive surface and a second conductive surface, the segment having a first end and a second end;
- a source capable of generating an electromagnetic wave that propagates in a direction from the first end to the second end, the electromagnetic wave creating an electric field between the two conducting surfaces;
- an opening at the first end of the segment;
- and
- a path for a material, the path passing through the opening and along the segment from the first end to the second end through a region that is an off-peak region of the electric field.
A device for heating the edge of a material, the device comprising:
- a segment having a first conductive surface and a second conductive surface, the segment having a first end and a second end, the segment comprising an opening for an edge of a material;
- a source capable of generating an electromagnetic wave that propagates in a direction from the first end to the second end, the electromagnetic wave creating an electric field between the two conducting surfaces;
- and
- means for passing the edge of the material from the first end of the segment to the second end of the segment inside the segment and the middle of the material from the first end of the segment to the second end of the segment outside the segment.
Dependencies are inferred from the claim text.