Tool for cutting coke and other hard materials in drums

US8066334B2 · kind B2 · utility

Assignee

• Ruhrpumpen GmbH · DE

Inventors

• Wolfgang Paul · Bad Schwartau, DE
• Kay Simon · Iserlohn, DE
• Thomas Graefenstein · Dortmund, DE
• Steffen Krenzer · Bochum, DE

Key dates

• Filing date: Jul 17, 2009
• Grant date: Nov 29, 2011
• Expiry date: Apr 9, 2030

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F15B15/061
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A tool used for cutting coke or other hard materials in drums, adapted for being mounted to a boring rod with which the water can be run under pressure into the tool thus that, the water can be run toward the boring and cutting nozzles, being provided with a valve mechanism that can rotate about a coupling angle for releasing and closing the flow channel ports depending on a control input, with a first coupling position of the valve mechanism for boring and another coupling position for cutting, whereby the valve mechanism can be coupled at a water pressure reduced to the coupling pressure by rotating about the coupling angle, is simplified as to construction and handling in that the valve mechanism comprises a valve body in the water intake area of the casing, which has a cylindrical shape and a section for the water flowing inside the casing, as well as being rotationally mounted and having the possibility to be lifted and lowered in a cylindrical section of the inner wall of the casing, the valve body being displaceable at working pressure to a lower position against a spring tension —depending on the preset control for the individual desired function of the tool —and on occurri…