Method and apparatus for reducing the size of elongate particulate material in a vacuum cleaner head
US6170119A · kind A · utility
57Cited by
15References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 1999 |
| Grant date | Jan 9, 2001 |
| Priority date | — |
| Expiry date | Jun 1, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L9/0494
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A vacuum cleaner head is provided with cutting elements positioned in the air flow path of the vacuum cleaner head to reduce the size of elongate particulate material entering the dirty air inlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.