Gas and liquid contact apparatus – Contact devices – Rotating
Reexamination Certificate
2007-01-30
2011-11-15
Bushey, Charles (Department: 1776)
Gas and liquid contact apparatus
Contact devices
Rotating
C261S120000, C261S123000
Reexamination Certificate
active
08056887
ABSTRACT:
A surface aerator for mixing gas and liquid is disclosed. The surface aerator has an upwardly pumping impeller located within a draft tube. A flow diverter redirects pumped liquid from the impeller traveling in an upward direction to a radially outward direction where it impacts and aerates the remaining liquid in a vessel. A baffle extends radially at a shallow depth to a point beyond the impact area of the liquid to provide separation of the impact area from the rest of the liquid and promote aeration.
REFERENCES:
patent: 2063301 (1936-12-01), Durdin, Jr.
patent: 2145034 (1939-01-01), Widdis
patent: 2293183 (1942-08-01), Walker
patent: 3473790 (1969-10-01), Herbert et al.
patent: 3515375 (1970-06-01), Roos
patent: 3532327 (1970-10-01), Landberg
patent: 3606273 (1971-09-01), Johnson
patent: 3630498 (1971-12-01), Bielinski
patent: 3643403 (1972-02-01), Speece
patent: 3677528 (1972-07-01), Martin
patent: 3771724 (1973-11-01), Rose et al.
patent: 3775307 (1973-11-01), McWhirter et al.
patent: 3810546 (1974-05-01), Oxenham
patent: 3846516 (1974-11-01), Carlson
patent: 3856272 (1974-12-01), Ravitts
patent: 3911064 (1975-10-01), Whirter et al.
patent: 4064403 (1977-12-01), Miller
patent: 4086306 (1978-04-01), Yoshinaga
patent: 4095918 (1978-06-01), Mouton, Jr. et al.
patent: 4231974 (1980-11-01), Engelbrecht et al.
patent: 4242289 (1980-12-01), Blum
patent: 4358206 (1982-11-01), Schutte
patent: 4371480 (1983-02-01), Vos
patent: 4465645 (1984-08-01), Kaelin
patent: 4512936 (1985-04-01), Oshima et al.
patent: 4519715 (1985-05-01), Golobic et al.
patent: 4532038 (1985-07-01), Reid
patent: 4611681 (1986-09-01), Krude et al.
patent: 5043104 (1991-08-01), Stirling
patent: 5112192 (1992-05-01), Weetman
patent: 5413765 (1995-05-01), Smith et al.
patent: 5431860 (1995-07-01), Kozma et al.
patent: 5525269 (1996-06-01), Connolly et al.
patent: 5676889 (1997-10-01), Belgin
patent: 5707562 (1998-01-01), Karliner
patent: 5711902 (1998-01-01), Hsu
patent: 5755976 (1998-05-01), Kortmann
patent: 5785899 (1998-07-01), Young
patent: 5874003 (1999-02-01), Rose
patent: 5916491 (1999-06-01), Hills
patent: 5921745 (1999-07-01), Round et al.
patent: 5925290 (1999-07-01), Hills
patent: 5996977 (1999-12-01), Burgess
patent: 6017020 (2000-01-01), Baughman
patent: 6024623 (2000-02-01), Menow et al.
patent: 6077424 (2000-06-01), Katsukura et al.
patent: 6135430 (2000-10-01), Bergman, Jr. et al.
patent: 6145815 (2000-11-01), Cheng et al.
patent: 6273402 (2001-08-01), Cheng
patent: 6464210 (2002-10-01), Teran et al.
patent: 6533244 (2003-03-01), Falkner
patent: 6877959 (2005-04-01), McWhirter
patent: 7083324 (2006-08-01), Van Drie
patent: 7267328 (2007-09-01), Witheridge
patent: 7398963 (2008-07-01), Hills
patent: 7789553 (2010-09-01), Tormaschy et al.
patent: 2004/0055960 (2004-03-01), McNeill
patent: 2007/0200262 (2007-08-01), Hills
patent: 1 243 313 (2002-09-01), None
patent: 2 798 602 (2001-03-01), None
patent: 04197496 (1992-07-01), None
“Deep Tank Aeration with Blower and Compressor Considerations,” Aeration: Principles and Practice, pp. 147-197, 2007.
“Surface and Mechanical Aeration,” Aeration: Principles and Practice, pp. 199-240, 2007.
J. R. McWhirter et al., “Oxygen Mass Transfer Fundamentals of Surface Aerators,” Ind. Eng. Chem. Res., vol. 34, No. 8, 1995, pp. 2644-2654.
Bushey Charles
Gordon, Esq. Matthew W.
Pietragallo Gordon Alfano Bosick & Raspanti, LLP
Towner, Esq. Alan G.
LandOfFree
Apparatus for surface mixing of gasses and liquids does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for surface mixing of gasses and liquids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for surface mixing of gasses and liquids will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4291512