Vacuum cleaner having dirt cup assembly with internal air guide
US8863353B2 · kind B2 · utility
15Cited by
5References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 16, 2012 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | May 15, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L9/1641
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A floor cleaning apparatus includes a body having a suction inlet and an exhaust outlet. A dirt cup assembly is carried on the body. The dirt cup assembly includes a primary cyclone, a plurality of secondary cyclones and an airflow path between the primary cyclone and the plurality of secondary cyclones. A suction generator is carried on the body. The suction generator moves an airstream through the suction inlet, the airflow path of the dirt cup assembly and the suction outlet. The airflow path is characterized by a primary air guide including an airflow surface that provides for laminar airflow between the secondary cyclones.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.