Particle separation apparatus
US7300482B2 · kind B2 · utility
4Cited by
10References
12Claims
0Family size
Inventor
Key dates
| Filing date | Aug 27, 2003 |
| Grant date | Nov 27, 2007 |
| Priority date | — |
| Expiry date | May 14, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7932
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Particle separation apparatus comprises a cyclone particle separating means, a particle collecting chamber and a fan driven by an electric motor for drawing particle laden air into and through the apparatus. A valve is provided, upstream of the suction fan driving motor and downstream of the cyclone particle separating means, which includes a valve closure and a valve seat against which the closure is normally resiliently urged to prevent air flowing through the valve. The valve seat is a circular opening and the closure is at least hemispherical with its convex curved surface towards the seating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.