Exhaust fan assembly
US11680719B1 · kind B1 · utility
1Cited by
4References
6Claims
0Family size
Inventors
Key dates
| Filing date | Mar 12, 2021 |
| Grant date | Jun 20, 2023 |
| Priority date | — |
| Expiry date | Apr 13, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F2007/001
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An exhaust fan includes a generally square housing, adjustable-height supports, and attachments for a variety of air ducts. The air ducts are each designed to provide a sufficient air seal to effectively enable the exhaust fan to evacuate dust and debris from a wide variety of standard doors or windows, either on the ground floor or an elevated floor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.