System and method for vacuum extraction of foreign materials
US5375292A · kind A · utility
3Cited by
5References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 1, 1993 |
| Grant date | Dec 27, 1994 |
| Priority date | — |
| Expiry date | Dec 1, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L9/0072
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
The suction capabilities of a original-equipment (O.E.) extractor providing inadequate suction are enhanced, thereby avoiding the need to purchase another and more expensive extractor, by the addition to it of a vacuum booster. The booster contains its own blower and an electric motor for driving the blower, and the inlet of the blower is connected to the outlet of the O.E. extractor. The booster is conveniently mounted to the O.E. extractor by means of suction cups. A doubling of the suction level can be achieved in this manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.