Fan with damper
US8513839B1 · kind B1 · utility
3Cited by
14References
10Claims
0Family size
Inventors
Key dates
| Filing date | Sep 20, 2010 |
| Grant date | Aug 20, 2013 |
| Priority date | — |
| Expiry date | May 20, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K7/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fan with damper includes a motor and a fan located in a duct ventilation passage. The motor is connected with the fan to drive the fan and move air or other gases through the duct. The motor has a drive shaft that slides along its length between on and off positions. A damper is also located in the passage, is operatively connected with the drive shaft such that the damper moves to an open position when the drive shaft slides to its on position and the damper moves to a closed position when the drive shaft slides to its off position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.