Radio frequency drying of textile material
AssigneeDawson International Limited
InventorsGeoffrey A. Smith, Thomas F. McAuley
Life of this patent
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Abstract
Textile material to be dried is mounted in an apparatus on a plurality of supports (1). The supports are moved along a predetermined path, and suction and radio frequency energy are applied to the material, to dry it. A pump (10a) which can pump both liquid and vapor draws air through the material to remove water. A valve (12) is associated with the suction duct (2) leading to each support, and these valves are adjusted as the supports move along the path, so that a maximum amount of suction is applied to the wet material and a lesser amount of suction to the drier material.
Claims11
Apparatus for drying textile material, the apparatus comprising a plurality of supports for supporting the material, means for moving the supports along a predetermined path, a suction duct associated with each support, a suction pump arranged to suck air through the material via the ducts, and means for applying radio frequency energy to the material as it passes along the path characterised in that the pump is adapted to remove vapour and liquid from the material, and that a valve is associated with each duct, each valve being adjustable to alter the flow cross-section through the duct, means being arranged along said predetermined path and adapted to adjust the opening of each valve at predetermined positions along the path.
Dependencies are inferred from the claim text.