Air filtration device
US9358409B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 30, 2011 |
| Grant date | Jun 7, 2016 |
| Priority date | — |
| Expiry date | Jan 21, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49002
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Air filtering devices may be helmet-mounted or belt-mounted. The air filtering devices include a filtering device shell and a filtering unit. The filtering unit includes a contaminated-air inlet, a filter assembly in fluid communication with the contaminated-air inlet, a blower assembly in fluid communication with the filter assembly via a duct, and containing a filtered-air outlet, and a filtered-air passageway in fluid communication with the blower assembly outlet and leading to breathing headgear. The blower assembly is vibrationally isolated from the filtering device shell by being only attached to the filtering device shell by the duct. The duct includes an elastomeric material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.