Tool for cutting coke and other hard materials in drums

Details Tool for cutting coke and other hard materials in drums Tool for cutting coke and other hard materials in drums

2009-07-17

2011-11-29

Kreck, John (Department: 3672)

Mining or in situ disintegration of hard material

Hard material disintegrating machines

C299S017000, C175S056000

Reexamination Certificate

active

08066334

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 occurring the coupling pressure, under spring tension, to an upper position relative to a rotating motion of the valve body about the coupling angle.

REFERENCES:
patent: 4850440 (1989-07-01), Smet
patent: 5816505 (1998-10-01), Tran et al.
patent: 6263984 (2001-07-01), Buckman, Sr.
patent: 6644567 (2003-11-01), Adams et al.
patent: 2008/0067858 (2008-03-01), Paul et al.
patent: 2008/0271766 (2008-11-01), Paul et al.
patent: 1059883 (1985-02-01), None
patent: 2005/105953 (2005-11-01), None

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