Air cleaner and shut-down method
US7857893B2 · kind B2 · utility
3Cited by
28References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2009 |
| Grant date | Dec 28, 2010 |
| Priority date | — |
| Expiry date | Nov 30, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A50/20
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An air cleaner is provided according to an embodiment of the invention. The air cleaner includes a high voltage power supply configured to provide a high voltage to a collector cell and a shut-down circuit coupled to the high voltage power supply. The shut-down circuit is configured to monitor an electrical current supplied to the collector cell, remove electrical power to the collector cell 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.