Ventilator and its impeller
US8653763B2 · kind B2 · utility
8Cited by
2References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 4, 2009 |
| Grant date | Feb 18, 2014 |
| Priority date | — |
| Expiry date | Jan 4, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F2007/001
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A ventilator includes a base, a drive device disposed on the base, an impeller coupled to the drive device and driven by the drive device, and a cover assembled with the base to define a closed area between the cover and the base for receiving a first circuit board therein, wherein when an AC power source is input to the first circuit board to be converted, a DC power source is output to drive the drive device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.