AIR TREATMENT CHEMICAL DISPENSER HAVING ANGLED DISPERSION OF CHEMICALS

• US 20150078921A1
• Filed: 09/13/2013
• Published: 03/19/2015
• Est. Priority Date: 09/13/2013
• Status: Active Grant

• Current Assignee: SC Johnson & Son Incorporated
• Original Assignee: SC Johnson & Son Incorporated
• Inventors: Sharma, Nitin, Shi, Deliang, Cummings, Gerald W., Long, Lina, Furner, Paul E.
• Granted Patent: US 10,378,558 B2
• Time in Patent Office: Days
• US Class Current: 417/66
• CPC Class Codes: A01M 1/2033 using a fan
• CPC Class Codes: A61L 2209/134 Distributing means, e.g. baffles, valves, manifolds, nozzles
• CPC Class Codes: A61L 9/122 comprising a fan
• CPC Class Codes: A61L 9/125 emanating multiple odours
• CPC Class Codes: F04D 17/16 for displacing without appreciable compression
• CPC Class Codes: F04F 1/18 the fluid medium being mixed with, or generated from the liquid to be pumped

Abstract

A device for dispensing an air treatment chemical includes a housing having an inlet for permitting air to enter into an interior space of the housing and an outlet for permitting air mixed with air treatment chemical to exit the interior space of the housing. A substrate positioned within the housing bears the air treatment chemical. A power supply mounted within the housing powers a motor mounted within the housing. The motor is connected to an impeller mounted within the housing. The impeller moves air from the inlet adjacent the substrate to mix the air treatment chemical into the moving air and deliver the mixture of air and air treatment chemical through the outlet to outside of the housing. The housing includes a transitional body defining a convergent-divergent channel for compressing the mixture at the converging section and expanding the mixture at the diverging section.

Claims

9. 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, 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 housing provides a convergent-divergent channel in which the mixture 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.

1. 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;

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 being capable of moving air from the inlet adjacent the substrate 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 the housing includes a transitional body defining a convergent-divergent channel in which the mixture 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.

2. The device of claim 1, wherein the converging section is positioned below the diverging section of the convergent-divergent channel.

3. The device of claim 1, wherein a lower end of the converging section is proximate to the substrate positioned within the housing.

4. The device of claim 1, wherein a plurality of substrates are stacked proximate to a lower end of the converging section.

5. The device of claim 1, wherein an upper end of the diverging section is configured to receive a top cover, the upper end of the diverging section further providing a plurality of outlet slots for the outlet.

6. The device of claim 1, wherein the impeller extends through at least a portion of the diverging section of the convergent-divergent channel.

7. The device of claim 1, wherein the housing further comprises a refill retainer in operative connection with the converging section and a battery module, the refill retainer configured to receive the at least one substrate or a plurality of substrates in a stacked position.

8. The device of claim 1, wherein the convergent-divergent channel defines about a 75 degree to about a 105 degree angle having a vertex at the throat of the channel.

10. The device of claim 9, wherein the impeller is mounted in operative connection to a top cover of the housing, the top cover of the housing configured to be received on an upper end of the diverging section of the convergent-divergent channel.

11. The device of claim 9, wherein the multiple channels of the impeller extend through at least a portion of the diverging section of the convergent-divergent channel.

12. The device of claim 9, wherein the multiple channels are sloped parallel to the diverging section of the convergent-divergent channel.

13. The device of claim 9, wherein the multiple channels are angled opposite to the direction of rotation of the impeller.

14. The device of claim 9, the power supply is mounted to a top cover of the housing.

15. The device of claim 9, wherein the power supply is mounted below the substrate positioned within the housing.

16. The device of claim 9, wherein a base portion of the housing includes a plurality of outlet slots and receives a plurality of substrates configured to be aligned with the plurality of outlet slots.

17. The device of claim 16, wherein the plurality of substrates comprises two or three substrates.

12-1. The device of claim 9, wherein the multiple channels of the impeller include about 10 channels to about 20 channels.

13-2. The device of claim 9, wherein the convergent-divergent channel defines about a 75 degree to about a 105 degree angle having a vertex at the throat of the channel.

18. 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;

a plurality of substrates mounted within the housing, each of the plurality of substrates 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 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 the housing provides a convergent-divergent channel defining a flow pathway for the mixture, wherein the mixture 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, and

wherein the impeller delivers the mixture at an inclined emission angle with respect to a plane defined by a top covering of the housing.

19. The device of claim 18, wherein the inclined emission angle is about 20 degrees to about 70 degrees.

20. The device of claim 18, wherein the impeller comprises an enclosed impeller having multiple channels that are sloped parallel to the diverging section of the convergent-divergent channel and angled opposite to the direction of rotation of the impeller.