Portable air filter
US8523970B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Sep 28, 2010 |
| Grant date | Sep 3, 2013 |
| Priority date | — |
| Expiry date | Aug 20, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F2221/12
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A portable air filter having a cylindrical, perforated shell with an end wall at one end closing the shell and an end wall at the other end having an opening. A hepa filter is removably mounted within the shell adjacent the perforations. The air filter has a blower unit with a through duct and a fan and a motor in the duct. The blower unit is detachably mountable on the shell adjacent the end wall at the other end with one open end of the duct extending through the opening in the end wall. Air is drawn through the perforated shell and hepa filter into the duct and out of the duct through its other open end away from the air filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.