Cleaning and liquid contact with solids – Apparatus – Miscellaneous
Reexamination Certificate
2008-08-04
2010-06-08
Cleveland, Michael (Department: 1792)
Cleaning and liquid contact with solids
Apparatus
Miscellaneous
C210S222000
Reexamination Certificate
active
07730899
ABSTRACT:
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.
REFERENCES:
patent: 4938875 (1990-07-01), Niessen
patent: 5012868 (1991-05-01), Bridges
patent: 5074998 (1991-12-01), De Baat Doelman
patent: 5171431 (1992-12-01), Schulte
patent: 5453188 (1995-09-01), Florescu et al.
patent: 5645697 (1997-07-01), Middleton et al.
patent: 5665221 (1997-09-01), Owen
patent: 5673721 (1997-10-01), Alcocer et al.
patent: 5725778 (1998-03-01), Cho et al.
patent: 5738766 (1998-04-01), Jefferson
patent: 5899220 (1999-05-01), Alcocer et al.
patent: 6496448 (2002-12-01), Kompanek
patent: 6655462 (2003-12-01), Carmichael et al.
patent: 6852235 (2005-02-01), Holland
patent: 7137449 (2006-11-01), Silguero
patent: 7264056 (2007-09-01), Towler
patent: 7351341 (2008-04-01), Tsuboi et al.
patent: 2001/0013413 (2001-08-01), Ruttley
patent: 2003/0155828 (2003-08-01), Cheung et al.
patent: 2005/0161405 (2005-07-01), Holland
patent: 2006/0048941 (2006-03-01), Borst et al.
patent: 99250279.9 (2000-08-01), None
patent: 200710038228.X (2007-03-01), None
patent: 4433784 (1995-07-01), None
patent: 460248 (1994-02-01), None
patent: 2001-259691 (2001-09-01), None
patent: WO 99/06324 (1999-02-01), None
patent: WO 2006/072125 (2006-07-01), None
patent: WO 2008/017849 (2008-02-01), None
International Search Report and Written Opinion dated Apr. 23, 2009 for PCT Application No. PCT/US2008/072137.
John Donaldson and Sue Grimes, “Lifting the scales from our pipes—Magnetic fields change the way crystals form in fluids. This could prevent the formation of scale in pipes and boilers.” New Scientist 18, pp. 43-46, Feb. 1988.
C.H. Sohn; C.S. Kim; S.Y. Moon; Y.I. Cho, “Effect of a longitudinally positioned solenoid coil on electronic descaling” Dept. of Mech. Eng., Kyungpook Nat. Univ., Sankyuk-Dong Puk-Gu Taegu, South Korea International Communications in Heat and Mass Transfer, vol. 32, No. 1-2, p. 240-247, Publisher: Elsevier, Published: Jan. 2005.
Y.I. Cho; W.T. Taylor, “An innovative electronic descaling technology for scale prevention in a chiller” Publisher: American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc., Atlanta, GA, pp. 581-586, Published: Jul. 1, 1999.
Mai, Q., U.S. Appl. No. 12/052,287, titled “Magnetic Field Process for Preventing Wax Separation in Petroleum,” filed Mar. 20, 2008 (certified English translation attached).
Blan Nicole
Cleveland Michael
Knobbe Martens Olson & Bear LLP
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