Method of making a brush-beater for a vacuum cleaner
US4312542A · kind A · utility
8Cited by
15References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 7, 1980 |
| Grant date | Jan 26, 1982 |
| Priority date | — |
| Expiry date | Jan 7, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4987
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
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.