Cover for a fluff screen in a surface treatment apparatus
US11160427B2 · kind B2 · utility
0Cited by
13References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2019 |
| Grant date | Nov 2, 2021 |
| Priority date | — |
| Expiry date | Aug 15, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB04C2009/004
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A vacuum cleaning apparatus may include a debris container and a filtering system. The debris container may define a debris collection chamber and include a dirty air inlet and a clean air outlet. The filtering system may be at least partially disposed in the debris collection chamber, and may include a fluff screen and a fluff screen cover defining a cavity for receiving at least a portion of the fluff screen. The fluff screen and the fluff screen cover may both include tapered outer surfaces. The tapered outer surfaces may have opposing tapers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.