Dust collector
US4663799A · kind A · utility
19Cited by
10References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 23, 1986 |
| Grant date | May 12, 1987 |
| Priority date | — |
| Expiry date | Jan 23, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L5/14
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
Dust collection apparatus is disclosed adapted for both vacuuming and blowing/sweeping functions. The apparatus consists of a single, self-contained unit comprising a blower, a cleaning hose, an engine, a collecting area, inlet and outlet passages, and a switching valve which can switch the internal airflow so as to convert the cleaning hose from a vacuuming function to a blowing/sweeping function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.