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Publication numberCA2660020 A1
Publication typeApplication
Application numberCA 2660020
PCT numberPCT/US2007/074856
Publication date14 Feb 2008
Filing date31 Jul 2007
Priority date8 Aug 2006
Also published asCA2660020C, US7625424, US7857893, US20080034963, US20100071558, WO2008019257A1
Publication numberCA 2660020, CA 2660020 A1, CA 2660020A1, CA-A1-2660020, CA2660020 A1, CA2660020A1, PCT/2007/74856, PCT/US/2007/074856, PCT/US/2007/74856, PCT/US/7/074856, PCT/US/7/74856, PCT/US2007/074856, PCT/US2007/74856, PCT/US2007074856, PCT/US200774856, PCT/US7/074856, PCT/US7/74856, PCT/US7074856, PCT/US774856
InventorsBruce M. Kiern, Christopher M. Paterson, John Relman Bohlen
ApplicantOreck Holdings, Llc, Bruce M. Kiern, Christopher M. Paterson, John Relman Bohlen
Export CitationBiBTeX, EndNote, RefMan
External Links: CIPO, Espacenet
Air cleaner and shut-down method
CA 2660020 A1
Abstract
An air cleaner (100) is provided according to an embodiment of the invention. The air cleaner (100) includes a high voltage power supply (108) configured to provide a high voltage to a collector cell (114) and a shut-down circuit (111) coupled to the high voltage power supply (108). The shut-down circuit (111) is configured to monitor an electrical current supplied to the collector cell (114), remove electrical power to the collector cell (114) if the electrical current exceeds a predetermined cell current threshold for a predetermined time period, and generate an indication if the electrical power is removed from the collector cell (114).
Description  available in
Claims(23)
1. An air cleaner (100), comprising a high voltage power supply (108) configured to provide a high voltage to a collector cell (114), with the air cleaner (100) being characterized by:

a shut-down circuit (111) coupled to the high voltage power supply (108) and configured to monitor an electrical current supplied to the collector cell (114), remove electrical power to the collector cell (114) if the electrical current exceeds a predetermined cell current threshold for a predetermined time period, and generate an indication if the electrical power is removed from the collector cell (114).
2. The air cleaner (100) of claim 1, with the collector cell (114) comprising an ionizer.
3. The air cleaner (100) of claim 1, with the collector cell (114) comprising an electrostatic precipitator.
4. The air cleaner (100) of claim 1, with the collector cell (114) comprising an electrostatic precipitator in combination with an ionizer.
5. The air cleaner (100) of claim 1, further comprising an air moving device (116) and wherein electrical power to the air moving device (116) is maintained when the electrical power to the collector cell (114) is removed.
6. The air cleaner (100) of claim 1, with generating the indication comprising illuminating a check collector cell indicator (131).
7. The air cleaner (100) of claim 1, with generating the indication comprising blinking a check collector cell indicator (131).
8. The air cleaner (100) of claim 1, with the shut-down circuit (111) being further configured to restore the electrical power to the collector cell (114) upon a power cycle and monitor the electrical current and remove electrical power to the collector cell (114) if the electrical current exceeds a predetermined cell current threshold for a predetermined time period after restoring the electrical power.
9. A shut-down method for a collector cell of an air cleaner, the method comprising:

monitoring an electrical current supplied to the collector cell;

removing electrical power to the collector cell if the electrical current exceeds a predetermined cell current threshold for a predetermined time period; and generating an indication if the electrical power is removed from the collector cell.
10. The method of claim 9, with the collector cell comprising an ionizer.
11. The method of claim 9, with the collector cell comprising an electrostatic precipitator.
12. The method of claim 9, with the collector cell comprising an electrostatic precipitator in combination with an ionizer.
13. The method of claim 9, further comprising an air moving device and wherein electrical power to the air moving device is maintained when the electrical power to the collector cell is removed.
14. The method of claim 9, with generating the indication comprising illuminating a check collector cell indicator.
15. The method of claim 9, with generating the indication comprising blinking a check collector cell indicator.
16. The method of claim 9, further comprising:

restoring the electrical power to the collector cell upon a power cycle; and monitoring the electrical current and removing electrical power to the collector cell if the electrical current exceeds a predetermined cell current threshold for a predetermined time period after restoring the electrical power.
17. A shut-down method for a collector cell of an air cleaner, the method comprising:

monitoring an electrical current supplied to the collector cell;

removing electrical power to the collector cell if the electrical current exceeds a predetermined cell current threshold for a predetermined time period;
generating an indication if the electrical power is removed from the collector cell;

restoring the electrical power to the collector cell upon a power cycle;
monitoring the electrical current; and removing the electrical power to the collector cell and generating the indication if the electrical current exceeds the predetermined cell current threshold for the predetermined time period after restoring the electrical power.
18. The method of claim 17, with the collector cell comprising an ionizer.
19. The method of claim 17, with the collector cell comprising an electrostatic precipitator.
20. The method of claim 17, with the collector cell comprising an electrostatic precipitator in combination with an ionizer.
21. The method of claim 17, further comprising an air moving device and wherein electrical power to the air moving device is maintained when the electrical power to the collector cell is removed.
22. The method of claim 17, with generating the indication comprising illuminating a check collector cell indicator.
23. The method of claim 17, with generating the indication comprising blinking a check collector cell indicator.
Classifications
International ClassificationB03C3/68, F24F3/16, A61L9/16
Cooperative ClassificationF24F2003/1635, A61L9/16, F24F3/166, B03C3/68, A61L2209/12, Y02A50/21
European ClassificationA61L9/16, F24F3/16C, B03C3/68
Legal Events
DateCodeEventDescription
1 Apr 2010EEERExamination request
12 Sep 2015MKLALapsed
Effective date: 20150731