Solid material comminution or disintegration – Apparatus – Including means applying fluid to material
Reexamination Certificate
2007-01-16
2007-01-16
Francis, Faye (Department: 3725)
Solid material comminution or disintegration
Apparatus
Including means applying fluid to material
C241S101100, C134S16800C
Reexamination Certificate
active
10484571
ABSTRACT:
A tool for disintegrating coke has a housing attached to a drill stem in operation, at least one nozzle for cutting and one nozzle for drilling of coke, and at least one valve for closing and opening the nozzles, wherein the tool is adapted to have two different operating states and wherein the at least one valve closes off the cutting nozzles in the drilling operating state, while the drilling nozzles are closed off by the at least one valve in the cutting operating state, and wherein the housing, the valve and the nozzles are adapted so that water may flow unhindered from the drill stem through the housing and the valve and through the nozzles not closed off by the valve, wherein, the nozzles to be closed, for each chosen operating state, are closed off by the balls of a ball valve. An arrangement for operating the valve is arranged above the nozzles.
REFERENCES:
patent: 5050995 (1991-09-01), Lucore, II
patent: 5417811 (1995-05-01), Malsbury
patent: 2004/0238408 (2004-12-01), Malsbury
Bareikowski Maciej
Heidemann Dirk
Paul Wolfgang
Bachman & LaPointe P.C.
Ruhrpumpen GmbH
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