Air treatment chemical dispenser having angled dispersion of chemicals

A device for dispensing an air treatment chemical, the device comprising:

• a housing including an exterior sidewall defining a convergent-divergent channel, the housing including an inlet for permitting air to enter into an interior space of the housing, the inlet comprising a plurality of inlet slots disposed 360 degrees circumferentially about the housing, and the housing including an outlet for permitting air mixed with air treatment chemical to exit the interior space, the outlet comprises a plurality of outlet slots evenly disposed 360 degrees circumferentially about the housing, and wherein the inlet is provided below the outlet on the housing;
• a substrate positioned within the housing, the substrate bearing the air treatment chemical;
• a power supply mounted within the housing;
• a motor mounted within the housing, the motor being powered by the power supply;
• and
• an impeller mounted within the housing and connected to the motor, the impeller comprising an enclosed impeller having multiple channels,
• wherein the convergent-divergent channel includes a converging section that contracts in diameter along a length of the sidewall from a lower edge of the converging section to a throat of the convergent-divergent channel and a diverging section that expands in diameter along another length of the sidewall from the throat to the outlet of the housing, and
• wherein the lower edge of the converging section is positioned entirely above the entire substrate.

A device for dispensing an air treatment chemical, the device comprising:

• a housing including an inlet for permitting air to enter into an interior space of the housing and including an outlet for permitting air mixed with air treatment chemical to exit the interior space, the inlet comprising a plurality of inlet slots disposed 360 degrees circumferentially about the housing, and the outlet comprising a plurality of outlet slots evenly disposed 360 degrees circumferentially about the housing;
• a plurality of substrates mounted within the housing, each of the plurality of substrates bearing the air treatment chemical, and each of the plurality of substrates being disposed adjacent a separate spaced apart inlet slot of the plurality of inlet slots such that each of the plurality of substrates are in spaced apart relationship;
• a power supply mounted within the housing;
• a motor mounted within the housing, the motor being powered by the power supply;
• and
• an impeller mounted within the housing and connected to the motor, the impeller being capable of moving air from the inlet adjacent the plurality of substrates so as to mix the air treatment chemical into the moving air, and then deliver a mixture of air and air treatment chemical through the outlet to outside of the housing,
• wherein a refill retainer is disposed within the housing, and the refill retainer defines at least a portion of a convergent-divergent channel defining a flow pathway for the air mixed with air treatment chemical, which compresses at a converging section toward a throat of the convergent-divergent channel and expands at a diverging section away from the throat and through the outlet of the housing, wherein the refill retainer positions each substrate of the plurality of substrates between one inlet slot of the plurality of inlet slots and one cut-out of a plurality of cut-outs defined by the refill retainer;
• wherein the impeller delivers the mixture at an inclined emission angle with respect to a plane defined by a top covering of the housing, and
• wherein the impeller includes multiple channels defined between a plurality of flat fan blades sloped upwardly at an angle with respect to a horizontal plane, each channel having a channel outlet at the outlet of the housing and the channel outlet has an outlet emission angle with respect to a horizontal plane, the angle of the flat fan blades determines the outlet emission angle, and wherein the outlet emission angle ranging from approximately 20 degrees to 70 degrees, and
• wherein a lower edge of the converging section is positioned entirely above the plurality of substrates.