Cleaning and liquid contact with solids – Processes – Hollow work – internal surface treatment
Reexamination Certificate
2011-01-18
2011-11-29
Kornakov, Michael (Department: 1714)
Cleaning and liquid contact with solids
Processes
Hollow work, internal surface treatment
C134S001000, C134S201000, C210S222000
Reexamination Certificate
active
08066817
ABSTRACT:
Methods and apparatus for reducing deposits from a petroleum flow line are disclosed. An embodiment of an apparatus for removing deposits from a petroleum flow line may include a pipe capable of being attached to a petroleum flow line. The pipe may have a pipe axis that defines a direction for fluid flow in the petroleum flow line. The apparatus may also include a first and a second field winding circumferentially disposed around the pipe, and an electric wave generator adapted to electrically communicate an electric wave to the first field winding and the second field winding. In response to the electric wave, the first field winding is adapted to produce a first magnetic field having a first magnetic axis and the second field winding is adapted to produce a second magnetic field having a second magnetic axis. The first magnetic axis may be noncollinear with respect to the second magnetic axis, and at least the first magnetic axis may be noncollinear with respect to the pipe axis.
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Blan Nicole
Knobbe Martens Olson & Bear LLP
Kornakov Michael
LandOfFree
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