Cyclonic vacuum cleaner ribbed cyclone shroud
US7922794B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 8, 2008 |
| Grant date | Apr 12, 2011 |
| Priority date | — |
| Expiry date | Jun 25, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/03
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A vacuum cleaner cyclone separator having a cyclone chamber with an air inlet and an air outlet. The cyclone chamber directs an airflow into a cyclonic pattern to remove a first amount of debris from the airflow. A filter shroud is located within the cyclone chamber and separates the air inlet from the air outlet. The filter shroud includes an air-pervious filter surface adapted to allow the airflow to pass from the air inlet to the air outlet and remove a second amount of debris from the airflow. One or more protrusions are associated with the filter surface, and configured and dimensioned to direct at least a portion of the airflow passing generally parallel to the filter surface away from the filter surface before passing through the filter surface. A dirt collection assembly having a cyclone separator and a method for using a cyclone separator are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.