Surface treatment nozzle
US6824453B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 25, 2002 |
| Grant date | Nov 30, 2004 |
| Priority date | — |
| Expiry date | Jul 7, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C3/025
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
There is described a surface treatment nozzle which generates a surface treatment jet that comprises a suspension of surface treatment material and gas and a surrounding liquid-containing jet for preventing dusting. The surface treatment jet has a high velocity compared with the velocity of solely liquid and is conveyed in an inner tube (13; 31) and the liquid is conveyed in a channel (12) between the inner tube and a tube (11) concentrically surrounding the inner tube. There is included a mixing arrangement (14, 15, 16; 22; 29, 30, 25) for mixing the liquid with gas upstream of the nozzle outlet and to impart to the liquid/gas mixture a velocity in the same order of magnitude as the velocity of the surface treatment jet at said outlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.