Blower for respirator device
US12364828B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2021 |
| Grant date | Jul 22, 2025 |
| Priority date | — |
| Expiry date | May 23, 2044 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/42
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pressurized treatment gas supply device has a lower enclosure and an upper enclosure. The air outlet is formed by part of the upper enclosure and lower enclosure and the gas outlet direction is tangent to the outer surface of the enclosure. The lower enclosure is has an annular wall and an outer wall. The space between the outer wall and the upper enclosure wall forms a gas path leading to the gas outlet. A motor is located on the inner side of the lower enclosure. The output shaft end of motor is arranged on the lower enclosure and output shaft of the motor is connected to an impeller. An gas inlet structural member is arranged on the lower enclosure, the end that opposite to impeller is axial air inlet end. The noise silencing chamber is formed between the top of air inlet structural member and the annular frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.