Air filtration device
First Claim
1. An air filtration device for intake of atmospheric air, removal of contaminants from the atmospheric air, expulsion of filtered air, and configured for operational association with a generally vertically oriented surface, said air filtration device comprising:
- a housing defining an air flow path therethrough and having a front surface and a rear surface;
at least one air inlet formed in said front surface;
at least one air outlet formed in said housing intermediate said front surface and said rear surface for cooperation of said air outlet with a generally vertical surface to which said air filtration device is associated for enhanced dispersion of filtered air expelled through said air outlet;
a filter supported in said air flow path;
an impeller supported by said housing for moving air through said air flow path, said impeller including a central inside area; and
a baffle plate supported by said housing for directing air flowing from said air inlet toward said central inside area, said baffle plate including a generally planar outer support surface located between a peripheral filter locating rib and a center point of the baffle plate, said outer support surface in facing engagement with a periphery of a rear surface of said filter in an operational position.
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Accused Products
Abstract
An air filtration device for intake of atmospheric air, removal of contaminants from the atmospheric air, expulsion of filtered air, includes a housing configured for application directly to an electrical outlet and provides air intake from the front surface of the housing and air expulsion from the side of the housing to utilize a wall surface to disperse the filtered air. An indicator is provided to communicate that a filter should be changed, and a filter orientation system is provided to allow proper orientation of the filter with respect to air flow.
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Citations
11 Claims
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1. An air filtration device for intake of atmospheric air, removal of contaminants from the atmospheric air, expulsion of filtered air, and configured for operational association with a generally vertically oriented surface, said air filtration device comprising:
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a housing defining an air flow path therethrough and having a front surface and a rear surface;
at least one air inlet formed in said front surface;
at least one air outlet formed in said housing intermediate said front surface and said rear surface for cooperation of said air outlet with a generally vertical surface to which said air filtration device is associated for enhanced dispersion of filtered air expelled through said air outlet;
a filter supported in said air flow path;
an impeller supported by said housing for moving air through said air flow path, said impeller including a central inside area; and
a baffle plate supported by said housing for directing air flowing from said air inlet toward said central inside area, said baffle plate including a generally planar outer support surface located between a peripheral filter locating rib and a center point of the baffle plate, said outer support surface in facing engagement with a periphery of a rear surface of said filter in an operational position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
a lamp mounted to said housing for illumination.
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6. The air filtration device of claim 1 wherein said baffle plate further includes an inner surface having a generally frusto-conical-shape, said inner surface being positioned radially inwardly from said outer surface, said inner surface directing said air flowing from said air inlet toward said central inside area.
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7. The air filtration device of claim 1 wherein said baffle plate further includes a plurality of radially extending baffle ribs that extend from said center point of said baffle plate to at least an inner edge of said inner surface.
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8. The air filtration device of claim 1 wherein said baffle plate further includes a centrally located deflecting puck that directs air flowing from said air inlet around an end of a motor toward said central inside area.
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9. The air filtration device of claim 8 wherein said deflecting puck, said inner surface and a plurality of baffle ribs form a baffle air flow channel that directs air flowing from said air inlet through said baffle air flow channel and toward said central inside area.
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10. The air filtration device of claim 1 wherein said rear surface of said filter is covered by a scrim material.
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11. An air filtration device for intake of atmospheric air, removal of contaminants from the atmospheric air, expulsion of filtered air and configured for operational association with a generally vertically oriented surface, said air filtration device comprising:
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a housing defining an air flow path therethrough and having a front surface, at least one side surface and a generally planar rear surface;
at least one air inlet formed in said housing;
at least one air outlet formed in said housing in spaced relation to said air inlet;
an impeller for moving air through said housing along said air flow path from said at least one air inlet to said at least one air outlet;
a substantially planar filter located in said air flow path intermediate said at least one air inlet and said impeller, said filter being positioned in a plane that is generally parallel to said rear surface of said housing;
a motor for driving said impeller; and
a pair of electric prongs extending outwardly from said rear surface for operational engagement with an electrical wall outlet for supplying electric power to said motor, said rear surface being in facing engagement with said electrical wall outlet when said electric prongs are in operational engagement with said electrical wall outlet for minimizing a space between said air outlet and the vertically oriented surface.
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Specification