Dust collector
US4817230A · kind A · utility
19Cited by
7References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 2, 1987 |
| Grant date | Apr 4, 1989 |
| Priority date | — |
| Expiry date | Nov 2, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L5/14
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A dust collector having a selector valve which enables a cleaning pipe to be connected with either a suction circuit communicating with a dust collecting portion, or a discharge circuit communicating with the discharge opening of a fan. By carrying out the shifting operation of said selector valve, the dust collector can be changed to suck and collect dust, or to blow and gather dust without rearranging the cleaning pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.