Air filtration device

• US 20020152894A1
• Filed: 06/21/2002
• Published: 10/24/2002
• Est. Priority Date: 05/03/2000
• Status: Abandoned Application

• Current Assignee: Hamilton Beach/Proctor-Silex Incorporated (Hamilton Beach Brands Holding Co.)
• Original Assignee: Hamilton Beach/Proctor-Silex Incorporated (Hamilton Beach Brands Holding Co.)
• Inventors: Cruz, Anthony V., Pillion, Lawrence M., Ragland, Matt R.
• Application Number:
  US10/176,835
• Publication Number:
  US 20020152894A1
• Time in Patent Office: Days
• US Class Current: 96/418
• CPC Class Codes: B01D 2265/026 with means for avoiding false mounting
• CPC Class Codes: B01D 2273/30 Means for generating a circulation of a fluid in a filtration system, e.g. using a pump or a fan
• CPC Class Codes: B01D 46/0043 containing fixed gas displacement elements or cores
• CPC Class Codes: B01D 46/0086 Filter condition indicators
• CPC Class Codes: B01D 46/103 Curved filtering elements
• CPC Class Codes: B01D 46/42 Auxiliary equipment or operation thereof
• CPC Class Codes: B01D 46/4254 Allowing or improving visual supervision, e.g. lamps, transparent parts, windows
• CPC Class Codes: F24F 1/0071 with means for purifying supplied air perfuming or deodorising means F24F1/008
• CPC Class Codes: F24F 11/39 Monitoring filter performance
• CPC Class Codes: F24F 8/10 by separation, e.g. by filtering
• CPC Class Codes: F24F 8/108 using dry filter elements
• CPC Class Codes: F24F 8/158 using active carbon
• CPC Class Codes: F24F 8/80 Self-contained air purifiers

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.

Claims

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.

2. The air filtration device of claim 1 further comprising:

a motor for driving the impeller, the motor and impeller at least partially supported by the baffle plate.

3. The air filtration device of claim 1 wherein the filter is supported by the baffle plate.

4. The air filtration device of claim 1 wherein the baffle plate is located between the filter and the impeller.

5. The air filtration device of claim 1 wherein the baffle plate is located between the air inlet and the impeller.

6. The air filtration device of claim 1 further comprising:

a lamp mounted to said housing for illumination.

7. An air filtration device for intake of atmospheric air, removal of contaminants from the atmospheric air, and expulsion of filtered air, said air filtration device comprising:

a housing defining an air flow path therethrough and having a movable door;

an air inlet formed in said housing;

an inlet grill supported by said door;

an air outlet formed on a side surface of said housing intermediate said air inlet and a rear surface of said housing in spaced relation to said air inlet;

a filter located in said air flow path;

an impeller for moving air through said housing along said air flow path from said air inlet to said air outlet;

a motor for driving said impeller; and

a pair of electric prongs extending outwardly from said housing for operational engagement with an electrical wall outlet for supplying electric power to said motor.

8. 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, 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.