Personal air filtering device with automatic control of air movement
US12185787B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2021 |
| Grant date | Jan 7, 2025 |
| Priority date | — |
| Expiry date | Mar 22, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2273/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A personal air filtering device comprising a rigid component comprising a transparent face shield, a fabric component, wherein the face shield and fabric combine to cover an entire head of a user and form a seal around the user's neck, an intake port with an inlet filter, an exhaust port with an exhaust filter, an air mover causing filtered air to enter the intake port from outside the device and exhaust air to exit the exhaust port, and a controller configured to adjust the rate at which the air mover moves air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.