Louvered fan grille for a shrouded floor drying fan
First Claim
Patent Images
1. A fan grille, comprising:
- an open substantially cylindrical tubular center baffle having a plurality of substantially concentric cylindrical tubular baffles;
an open outwardly inclined peripheral baffle comprising a plurality of substantially concentric inclined grooves formed between opposing adjacent inclined baffle surfaces;
means for coupling the center baffle to the peripheral baffle; and
means for coupling one of the center baffle and the peripheral baffle to a fan.
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Accused Products
Abstract
A method and apparatus for drying floors and carpets using a louvered grille with a shrouded floor drying fan for generating a pressurized air stream within a vertical cylindrical shroud that is spaced two to five inches away from the floor on a set of legs such that an opening is formed between the shroud and the floor. The air stream is directed along the cylindrical shroud vertically toward the floor. By means of the louvered grille at least a peripheral portion of the air stream is exhausted from the shroud in a substantially laminar flow at an angle that is inclined from the vertical and the air stream is exhausted radially into ambient air as a substantially laminar air stream.
97 Citations
24 Claims
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1. A fan grille, comprising:
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an open substantially cylindrical tubular center baffle having a plurality of substantially concentric cylindrical tubular baffles; an open outwardly inclined peripheral baffle comprising a plurality of substantially concentric inclined grooves formed between opposing adjacent inclined baffle surfaces; means for coupling the center baffle to the peripheral baffle; and means for coupling one of the center baffle and the peripheral baffle to a fan. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A fan grille, comprising:
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a center baffle structured for directing an air stream into a central zone directly adjacent to the center baffle and in substantial axial alignment therewith, the center baffle comprising a plurality of substantially concentric tubular baffles that are substantially aligned with the central zone directly adjacent to the center baffles; a peripheral baffle substantially surrounding the center baffle and being outwardly inclined from the center baffle at an angle in the range of thirty to sixty degrees and being structured for directing an air stream outwardly away from the central zone, the peripheral baffle further comprising a plurality of substantially concentric inclined grooves formed between opposing adjacent inclined baffle surfaces; a plurality of crosswise members coupling the center baffle together with the peripheral baffle; and a plurality of means for securing the peripheral baffle to a fan shroud with the center baffle substantially centered over a longitudinal axis of an outlet orifice of the fan shroud and with the peripheral baffle positioned adjacent to a peripheral portion of the fan shroud. - View Dependent Claims (11, 12, 13)
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14. A fan grille, comprising:
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a means for directing a central portion of an air stream generated by a rotational fan impeller into a central zone directly downstream of a rotational axis of the fan impeller and within close proximity of the fan impeller; a means for deflecting outwardly of the central zone a peripheral portion of the air stream directly downstream of a peripheral portion of the fan impeller simultaneously with the means for directing the central portion of an air stream, the means for deflecting the peripheral portion of the air stream further comprising a means for imparting a substantially laminar flow character to the peripheral portion of the air stream; a means for coupling together the means for directing the central portion of the air stream with the means for deflecting peripheral portion of the air stream; and a means for securing the means for directing the central portion of the air stream and the means for deflecting peripheral portion of the air stream to a fan shroud having the fan impeller residing therein. - View Dependent Claims (15, 16, 17, 18, 19)
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20. A fan grille, comprising:
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a substantially open center baffle having a plurality of individual baffle surfaces spaced-apart within the center baffle; an open outwardly inclined peripheral baffle comprising a plurality of inclined grooves formed between opposing adjacent inclined baffle surfaces; means for coupling the center baffle to the peripheral baffle; and means for coupling one of the center baffle and the peripheral baffle to a fan. - View Dependent Claims (21, 22, 23, 24)
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Specification