Brush-beater for a vacuum cleaner and method for making the same
US4209873A · kind A · utility
27Cited by
4References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 2, 1978 |
| Grant date | Jul 1, 1980 |
| Priority date | — |
| Expiry date | Jun 2, 1998 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L9/0455
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A brush-beater assembly for a vacuum cleaner comprises a hollow cylinder having outwardly extending projections formed in the material thereof, and slots diametrically opposed to the projections for receiving brush assemblies. The projections may be formed pneumatically or hydraulically in the cylinder, during the production thereof. An additional projection is provided in front of the brush assemblies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.