Reversible fan
US12055150B2 · kind B2 · utility
0Cited by
5References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 28, 2022 |
| Grant date | Aug 6, 2024 |
| Priority date | — |
| Expiry date | Apr 28, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2250/71
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Provided is a reversible fan including: a fin configured to produce a current of air in both of a normal direction and a reverse direction; an impeller configured to be rotatable about a rotation axis; a motor configured to rotate the impeller; and a tubular frame housing the impeller and the motor, wherein the fin has a shape that allows producing louder noise upon producing the current of air in the normal direction than upon producing the current of air in the reverse direction, and protrudes inward in a radial direction from an inner peripheral surface of the frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.