Cooling fan with speed maintained during wait period despite decreasing temperature
US7890219B2 · kind B2 · utility
8Cited by
8References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 5, 2008 |
| Grant date | Feb 15, 2011 |
| Priority date | — |
| Expiry date | Jul 8, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/206
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A controller controls fan speed as a function of temperature indications. The controller maintains a constant fan speed despite indications of decreasing temperature at least until a preset wait period has expired since the last fan-speed change.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.