Fan speed indicator
US6363879B1 · kind B1 · utility
1Cited by
6References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2000 |
| Grant date | Apr 2, 2002 |
| Priority date | — |
| Expiry date | Mar 20, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D25/088
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A ceiling fan speed indicator having a detectable feature by which fan speed may be quickly ascertained by one of the human senses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.