Portable room air purifier
US6036757A · kind A · utility
56Cited by
4References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 10, 1998 |
| Grant date | Mar 14, 2000 |
| Priority date | — |
| Expiry date | Jul 10, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D46/46
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A portable air purifier including a housing defining an air inlet, an air outlet and an air flow passage extending therebetween; a filter mechanism disposed to filter air circulating through the flow passage; and a fan retained by the housing and activatable to draw air through the air inlet, move air through the flow passage and filter mechanism, and discharge air through the air outlet. An electrically powered drive mechanism is energizable to activate the fan and a control system including a processor monitors and records elapsed time data during periods in which the fan is activated to move air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.