Exhaust fan
US11913460B2 · kind B2 · utility
0Cited by
54References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 19, 2021 |
| Grant date | Feb 27, 2024 |
| Priority date | — |
| Expiry date | Jun 3, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/441
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An exhaust fan assembly can include an outer housing, a fan housing mounted to the outer housing, a fan wheel and an electric motor operably coupled to the fan wheel, the fan wheel and electric motor being mounted within the fan housing, wherein the fan housing defines an open inlet side for accepting airflow in a direction generally parallel to a rotational axis of the fan wheel and an outlet for discharging airflow in a direction generally perpendicular to the rotational axis, wherein the fan housing defines a volute section with an outer perimeter having a continuously curved cross-sectional shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.