Air-assisted wiping device
US6023855A · kind A · utility
0Cited by
4References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 27, 1996 |
| Grant date | Feb 15, 2000 |
| Priority date | — |
| Expiry date | Nov 27, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF26B3/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention provides an air-assisted wiping device for use in a continuous-spray dryer. The air-assisted wiping device rotates inside the housing to continuously wipe heavy sticky powder from the walls of the housing using a wiper blade. The air-assisted wiping device includes an elongated hollow plenum having a flow-directing slot disposed along its length. Air received into the elongated hollow plenum is passed through the flow-directing slot onto a wiper blade, which is coupled to the elongated hollow plenum. The air discharged onto the wiper blade removes powder that collects on the leading side of the wiper blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.