Boring or penetrating the earth – Processes – Boring with specific fluid
Reexamination Certificate
2004-10-20
2008-11-04
Bagnell, David J. (Department: 3672)
Boring or penetrating the earth
Processes
Boring with specific fluid
C175S424000, C175S054000, C451S038000, C451S102000
Reexamination Certificate
active
07445058
ABSTRACT:
A nozzle unit for generating an abrasive jet. The nozzle unit has a first nozzle connected to a pressurized carrier fluid supply; a mixing chamber in which the first nozzle discharges; and a second nozzle connected to the mixing chamber. An abrasive particle inlet discharges in the mixing chamber. A proportion of the cross sectional area of the first nozzle opening (A1) and the cross sectional area of the second nozzle opening (A2) is in a range of 0.50-1.0.
REFERENCES:
patent: 2779571 (1957-01-01), Ortloff
patent: 4555872 (1985-12-01), Yie
patent: 4707952 (1987-11-01), Krasnoff
patent: 4815241 (1989-03-01), Woodson
patent: 5462605 (1995-10-01), Szucs
patent: 5560547 (1996-10-01), Mutter et al.
patent: 5857900 (1999-01-01), Shank, Jr.
patent: 6077152 (2000-06-01), Warehime
patent: 6283833 (2001-09-01), Pao et al.
patent: 6386466 (2002-05-01), Ozawa et al.
patent: 6691928 (2004-02-01), Chung et al.
patent: 6752685 (2004-06-01), Ulrich et al.
patent: 2002/0079998 (2002-06-01), Blange
patent: 2006/0185907 (2006-08-01), Blange
patent: 0 119 338 (1984-09-01), None
patent: 0119338 (1984-09-01), None
patent: 0 526 087 (1993-02-01), None
patent: 0526087 (1993-02-01), None
patent: 00/66872 (2000-11-01), None
patent: 02/34653 (2002-05-01), None
patent: 02/092956 (2002-11-01), None
patent: 2005/005765 (2005-01-01), None
patent: 2005/005766 (2005-01-01), None
patent: 2005/005768 (2005-01-01), None
patent: 2005005767 (2005-01-01), None
patent: 2005038189 (2005-04-01), None
patent: 2005/040546 (2005-05-01), None
patent: 2005/051426 (2005-06-01), None
International Search Report for PCT/EP2004/052593, Schouten, EPO, Jan. 25, 2005, pp. 1-3.
Written Opinion of the ISA for PCT/EP2004/052593, Schouten, EPO, Jan. 24, 2005, pp. 1-5.
International Preliminary Report on Patentability for PCT/EP2004/052593, Schouten, EPO, Nov. 7, 2005, pp. 1-6.
R.D. Blevins, Applied Fluid Dynamics Handbook, 1992, p. 260.
International Search Reprot PCT/EP2004/052593 dated Jan. 14, 2005.
Andrews David
Bagnell David J.
Shell Oil Company
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