Gas separation – With nonliquid cleaning means for separating media – With separating media pneumatically vibrated or flexed
Reexamination Certificate
2011-04-05
2011-04-05
Smith, Duane (Department: 1776)
Gas separation
With nonliquid cleaning means for separating media
With separating media pneumatically vibrated or flexed
C055S302000
Reexamination Certificate
active
07918907
ABSTRACT:
A particulate filtration device having a cleaning assembly including the cleaning nozzle that accelerates gas toward the downstream surface of the filter media. The cleaning nozzle comprises an inlet portion defining a converging inlet path, a throat portion defining a narrowest portion of the nozzle, and an outlet portion defining a diverging path and ending at an exit edge. The inlet portion, throat portion, and outlet portion collectively create an inner surface of the nozzle. The nozzle defines a centerline and an exit half angle relative to the centerline, and the exit half angle is about ten degrees. The nozzle has a throat area at the throat portion and an exit area at the exit edge. A ratio of the exit area to the throat area is about 1.4. A portion of the inlet portion adjacent the throat portion has a throat inlet radius, and a portion of the outlet portion adjacent the throat portion has a throat outlet radius. The throat outlet radius is larger than the throat inlet radius. For example, a ratio of the throat outlet radius to the throat inlet radius is about 2.9.
REFERENCES:
patent: 3436899 (1969-04-01), Pausch
patent: 3499268 (1970-03-01), Pausch
patent: 3798878 (1974-03-01), Pausch
patent: 3874857 (1975-04-01), Hunt et al.
patent: 3876402 (1975-04-01), Bundy et al.
patent: 3973935 (1976-08-01), Moore, Jr. et al.
patent: 4033732 (1977-07-01), Axelsson et al.
patent: 4077781 (1978-03-01), Sundstrom
patent: 4157899 (1979-06-01), Wheaton
patent: 4235610 (1980-11-01), Richard
patent: 4251244 (1981-02-01), Evenstad
patent: 4278454 (1981-07-01), Nemesi
patent: 4433986 (1984-02-01), Borst
patent: 4436536 (1984-03-01), Robinson
patent: 4544382 (1985-10-01), Taillet et al.
patent: 4578092 (1986-03-01), Klimczak
patent: 4666472 (1987-05-01), Klimczak et al.
patent: 4789387 (1988-12-01), Nemesi et al.
patent: 4910047 (1990-03-01), Barnett et al.
patent: 4955996 (1990-09-01), Edwards et al.
patent: 5002594 (1991-03-01), Merritt
patent: 5062867 (1991-11-01), Klimczak
patent: 5395409 (1995-03-01), Klimczak et al.
patent: 5549734 (1996-08-01), Standard
patent: 5616171 (1997-04-01), Barris et al.
patent: 6022388 (2000-02-01), Andersson et al.
patent: 6149716 (2000-11-01), Bach et al.
patent: 6332902 (2001-12-01), Simonsen
patent: 6554138 (2003-04-01), Bihlet et al.
patent: 6786946 (2004-09-01), Jung
patent: 6902592 (2005-06-01), Green et al.
patent: 2002/0100261 (2002-08-01), Richard
patent: 2003/0121238 (2003-07-01), Richard
patent: 2006/0075726 (2006-04-01), Yoshimoto
Roberson, John A. and Crowe, Clayton T., “Engineering Fluid Mechanics” book, copyright 1975, pp. 505-507, Houghton Mifflin Company, USA.
Michael & Best & Friedrich LLP
Palmer Tiffany N
Smith Duane
Venturedyne Ltd.
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