Patent ID: 9440370
Filing Date: 2016-09-13
CPC Classification: B24C,B26F

Claim Text:
1. A waterjet cutting system comprising: a waterjet cutting head including an orifice in fluid communication with a mixing chamber and a focusing nozzle, and an abrasive slurry inlet in fluid communication with said mixing chamber; a source of high pressure water in communication with said orifice; an abrasive reservoir for containing abrasive material; a water supply; a slurry mix supply tank remote from said waterjet cutting head; metering valves for creating a controlled slurry of abrasive and water in said slurry mix supply tank; a slurry supply loop beginning and ending at said slurry mix supply tank and in communication with said abrasive slurry inlet; a pump for continuously circulating said slurry in said slurry supply loop at a velocity sufficient to maintain said abrasive suspended in said slurry, wherein a predetermined quantity of said slurry is entrained in and mixed with a stream of high pressure water emitted from said orifice and slurry not delivered to said waterjet cutting head is returned to said slurry mix supply tank.