Drying and gas or vapor contact with solids – Material treated by electromagnetic energy – Magnetic field
Patent
1997-07-07
1998-09-29
Bennett, Henry A.
Drying and gas or vapor contact with solids
Material treated by electromagnetic energy
Magnetic field
34421, 34463, 34469, 34 73, F26B 334
Patent
active
058131337
ABSTRACT:
Drying a coated substrate which includes magnetic particles includes a condensing surface spaced from the substrate. This creates a longitudinal gap between the substrate and the condensing surface. Liquid is evaporated from the substrate to create a vapor and the vapor is transported to the condensing surface without requiring applied convection. The vapor is condensed on the condensing surface to create a condensate which is removed from the condensing surface. Removal is performed, using more than gravity, without allowing non-uniformities of the condensate film to occur. The magnetic particles are oriented on the coated substrate by subjecting the coated substrate to a magnetic field created at a location outside of the dryer space.
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Huelsman Gary L.
Kolb William B.
Munter John D.
Bennett Henry A.
Gravini Steve
Levine Charles D.
Minnesota Mining and Manufacturing Company
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