Patent ID: 7108585
Filing Date: 2006-09-19
Classification: B24C,Y10T

Abstract:
1. A multistage abrasive-liquid jet cutting head comprising: at least a first mixing stage and a second mixing stage; a first mixing chamber within said first mixing stage arranged to accept a first flow of accelerated abrasive particles from a first abrasive feed tube and a pressurized liquid flow from an orifice and produce a pressurized slurry-like flow that is introduced to said second mixing stage; a second mixing chamber within said second mixing stage arranged to accept and mix a second flow of accelerated abrasive particles from a second abrasive feed tube with said pressurized slurry-like flow from said first mixing stage; an exit nozzle in fluid communication with said second mixing chamber that focuses the combination of said second flow of accelerated abrasive particles from said second abrasive feed tube with said pressurized slurry-like flow from said first mixing stage into an abrasive jet.