Fluid suction nozzle and fluid-treating apparatus
US5263897A · kind A · utility
42Cited by
0References
10Claims
0Family size
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Key dates
| Filing date | Apr 30, 1992 |
| Grant date | Nov 23, 1993 |
| Priority date | — |
| Expiry date | Apr 30, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F2221/12
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A fluid suction nozzle and a fluid-treating apparatus are used in the cleaning of air inside a local space. The suction nozzle has a suction passage and plural annular discharge passages surrounding the suction passage. The nozzle is connected with an air cleaner, etc. The air inside a local space is to be drawn in through the suction passage. At the same time, a larger amount of air is to be discharged from the discharge passages. The velocity at which fluid will flow from the outer discharge passage is smaller than that at which fluid from the same source will flow from the inner discharge passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.