Portable blowing device
US12060893B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 8, 2021 |
| Grant date | Aug 13, 2024 |
| Priority date | — |
| Expiry date | Jan 12, 2043 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2007/0011
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A portable blowing device includes a body and fans arranged in the body. Air channels are arranged in the body and extend in the length direction of the body to allow airflow to pass through. Wind shields are arranged in the air channels, and a periphery of the wind shield is closely connected with a side wall of the air channel so that a sub-air channel is formed between the wind shield and the side wall of the air channel. Air outlets are formed in the side wall for communicating with outside and the sub-air channel, and airflow generated by the fan can enter the sub-air channel and then exits the air outlets. Because of the reduced volume of the sub-air channel, the airflow is concentrated after entering the sub-air channel, and airflow exiting the air outlets is strengthened, so that the cooling effect and the user experience are improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.