Boring or penetrating the earth – With means carrying cuttings laterally of bore axis...
Reexamination Certificate
2005-09-29
2009-02-24
Beach, Thomas A (Department: 3671)
Boring or penetrating the earth
With means carrying cuttings laterally of bore axis...
C175S207000, C175S206000
Reexamination Certificate
active
07493969
ABSTRACT:
Vessels, system and methods for conveying drilling cuttings material, which, in certain aspects, include a system for conveying material from a vessel, the system having a vessel for receiving material to be conveyed, a first conduit for conveying air, a second conduit for receiving air from the first conduit and for conveying air into the vessel, a metering screw for receiving material from the vessel and for moving the material from the vessel, a discharge line for receiving the material from the metering screw, the discharge line having an exit end, pressure sensor apparatus for sensing pressure in the discharge line, and control apparatus for automatically controlling the metering screw in response to a pressure sensed by the pressure sensor apparatus.
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Burnett George Alexander
Crabb Colin
McIntosh James Michael
Seyffert Kenneth Wayne
Wood David
Beach Thomas A
McClung Guy
Varco I/P Inc.
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