Gas separation – With nonliquid cleaning means for separating media – Cohesive filter media cleaning
Reexamination Certificate
2011-04-05
2011-04-05
Smith, Duane (Department: 1776)
Gas separation
With nonliquid cleaning means for separating media
Cohesive filter media cleaning
C095S280000
Reexamination Certificate
active
07918908
ABSTRACT:
A particulate filtration device comprising filter media having upstream and downstream surfaces, a gas-moving device for moving gas through the filter media from the upstream surface toward the downstream surface, and a cleaning assembly including a blow pipe having a plurality of cleaning nozzles for directing a flow of cleaning gas toward the filter media. A first one of the cleaning nozzles comprises a structural characteristic (e.g., throat size, exit angle, exit size) that is different than a second one of the cleaning nozzles. In one embodiment, the filter media comprises a filter bag corresponding with each nozzle, and both the first one and the second one of the cleaning nozzles are spaced substantially the same distance from the corresponding filter bag. The cleaning assembly can also include a plurality of blow pipes (e.g., each having a plurality of cleaning nozzles) coupled to a gas-pressurized manifold, and a valve positioned between the manifold and each blow pipe to control gas flowing from the manifold to the blow pipes. In this configuration, it is preferred that the nozzle nearer the manifold has a larger throat size, smaller exit angle, and larger exit size than the nozzle farther from the manifold.
REFERENCES:
patent: 3436899 (1969-04-01), Pausch
patent: 3499268 (1970-03-01), Pausch
patent: 3683595 (1972-08-01), Houghton et al.
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: 5062873 (1991-11-01), Karlsson
patent: 5395409 (1995-03-01), Klimczak et al.
patent: 5549734 (1996-08-01), Standard
patent: 5562746 (1996-10-01), Raether
patent: 5616171 (1997-04-01), Barris et al.
patent: 6022388 (2000-02-01), Andersson et al.
patent: 6129852 (2000-10-01), Elliott et al.
patent: 6149716 (2000-11-01), Bach et al.
patent: 6332902 (2001-12-01), Simonsen et al.
patent: 6554138 (2003-04-01), Bihlet et al.
patent: 6786946 (2004-09-01), Jung
patent: 6902592 (2005-06-01), Green et al.
patent: 6908494 (2005-06-01), Gillingham et al.
patent: 7195659 (2007-03-01), Sporre et al.
patent: 7485163 (2009-02-01), Yoshimoto
patent: 2002/0100261 (2002-08-01), Richard
patent: 2003/0121238 (2003-07-01), Richard
patent: 2005/0252178 (2005-11-01), Richard
patent: 2006/0075726 (2006-04-01), Yoshimoto
patent: 2007/0039290 (2007-02-01), Lee
patent: 2008/0127826 (2008-06-01), Raether
patent: 2009/0217630 (2009-09-01), Bitner
Bitner Glenn W.
Gerardi Michael T.
Nahey Brian
Michael & Best & Friedrich LLP
Pham Minh-Chau
Smith Duane
Venturedyne Ltd.
LandOfFree
Dust collector with equalized cleaning performance does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dust collector with equalized cleaning performance, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dust collector with equalized cleaning performance will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2622749