Fan for improving air quality
US11197943B1 · kind B1 · utility
3Cited by
28References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2021 |
| Grant date | Dec 14, 2021 |
| Priority date | — |
| Expiry date | Apr 13, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2240/307
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fan is for improving air quality, such as in an indoor environment. The fan includes a motor and a rotatable hub coupled to the motor. At least one fan blade includes a first end portion coupled to the rotatable hub and a second end portion radially distant from the rotatable hub. At least one ion generator is carried by the second end portion of the at least one fan blade, such as by a winglet associated therewith. A stationary tube passes through the rotatable hub including a conduit for transmitting power. A rotary coupling is also provided for transmitting power from the conduit to the at least one ion generator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.