Patent 8074746 was granted and assigned to Ruhrpumpen on December, 2011 by the United States Patent and Trademark Office.
A tool for crushing coke includes a casing which in the operational state is connected to a drill rod and on or in which is arranged at least one cutting nozzle and one drill nozzle for drilling coke and at least one valve for controlling a direction of flow of water flowing through the drill rod and the casing through the cutting nozzle and the drill nozzle.