Apparatus and method for cleaning a conduit
US6604257B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 10, 1999 |
| Grant date | Aug 12, 2003 |
| Priority date | — |
| Expiry date | Sep 4, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/3385
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention discloses an apparatus and method for cleaning an exhaust conduit that has chemical substances deposited on its inside wall by utilizing a shaft that has a plurality of scraping elements mounted thereto capable of making vertically or radially oscillating motions inside the exhaust conduit such that the chemical substances can be dislodged from the inside wall and the exhaust conduit can be effectively cleaned. The apparatus may optionally include fluid nozzles provided in the shaft for dispensing a cleaning fluid during the cleaning process to further enhance the efficiency. The apparatus may further include a vacuum device for effectively removing the debris dislodged from the inside wall during such cleaning process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.