Universal blower
US4902199A · kind A · utility
21Cited by
16References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 14, 1986 |
| Grant date | Feb 20, 1990 |
| Priority date | — |
| Expiry date | Oct 14, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S415/912
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A multifunction blower in which a common housing is employed to both increase and decrease the pressure of incoming air in separate chambers thereof. The increase and decrease in air pressure is adjustable by changing the impellers of the pressure and vacuum assemblies used therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.