Strip diffuser

Gas and liquid contact apparatus – Contact devices – Liquid tank

Reexamination Certificate

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Details

C261SDIG070

Reexamination Certificate

active

08002249

ABSTRACT:
Membrane strip diffusers are disclosed, useful for example in aerating wastewater in activated sludge plants. These diffusers have membranes, diffuser bodies comprising gas conduits and, in addition to the conduits, integral membrane supports elongated in the same general direction. Such conduits are for example co-extruded with the diffuser bodies. The supports are apertured to discharge gas into chambers formed beneath the membranes when they inflate, and the membranes have pores to discharge the gas. Ways to edge- and end-seal the membranes to the diffuser bodies and ways to support the diffusers are also disclosed.

REFERENCES:
patent: 2212841 (1940-08-01), Maxwell
patent: 3063689 (1962-11-01), Coppock
patent: 3083953 (1963-04-01), Langdon et al.
patent: 3432154 (1969-03-01), Danjes
patent: 3768788 (1973-10-01), Candel
patent: 3837629 (1974-09-01), Matras et al.
patent: 3953553 (1976-04-01), Thayer
patent: 3954922 (1976-05-01), Walker et al.
patent: 3992491 (1976-11-01), Ihrig et al.
patent: 4029581 (1977-06-01), Clough, Jr. et al.
patent: 4060486 (1977-11-01), Schreiber
patent: 4606867 (1986-08-01), Eguchi
patent: 4624781 (1986-11-01), Messner
patent: 4629126 (1986-12-01), Goudy, Jr. et al.
patent: 4631134 (1986-12-01), Schussler
patent: 4734191 (1988-03-01), Schussler
patent: 4960546 (1990-10-01), Tharp
patent: 4961854 (1990-10-01), Wittmann et al.
patent: 5000884 (1991-03-01), Bassfeld
patent: 5013493 (1991-05-01), Tharp
patent: 5015421 (1991-05-01), Messner
patent: 5032325 (1991-07-01), Tharp
patent: 5075048 (1991-12-01), Veeder
patent: 5093047 (1992-03-01), Zeppenfeld
patent: 5098581 (1992-03-01), Roediger
patent: 5133862 (1992-07-01), Cannan et al.
patent: 5133876 (1992-07-01), Tharp
patent: 5158715 (1992-10-01), Jager
patent: 5192467 (1993-03-01), Strung et al.
patent: 5330688 (1994-07-01), Downs
patent: 5352391 (1994-10-01), Heck
patent: 5378355 (1995-01-01), Winkler
patent: 5458771 (1995-10-01), Todd
patent: 5672270 (1997-09-01), Yoshimura
patent: 5681509 (1997-10-01), Bailey
patent: 5846412 (1998-12-01), Tharp
patent: 5851447 (1998-12-01), Tyer
patent: 5868971 (1999-02-01), Meyer
patent: 5868972 (1999-02-01), Galich et al.
patent: 6193220 (2001-02-01), Kelly
patent: 6244574 (2001-06-01), Downs
patent: 6344138 (2002-02-01), Del Guerra
patent: 6406005 (2002-06-01), Lawson et al.
patent: 6464211 (2002-10-01), Downs
patent: 6808165 (2004-10-01), Sperber et al.
patent: 6811148 (2004-11-01), Frankel et al.
patent: 7255333 (2007-08-01), Casper et al.
patent: 7311299 (2007-12-01), Sasajima
patent: 2002/0003314 (2002-01-01), Cantz
patent: 2007/0013089 (2007-01-01), Sasajima
patent: 391126 (1990-02-01), None
patent: 2 482 435 (2003-11-01), None
patent: 2 261 994 (1974-06-01), None
patent: 3224177 (1983-12-01), None
patent: 3441731 (1986-05-01), None
patent: 3710739 (1988-10-01), None
patent: G 87 06 219.4 (1988-10-01), None
patent: 3716744 (1988-12-01), None
patent: 41 04 287 (1992-08-01), None
patent: 42 06 136 (1992-09-01), None
patent: 4240300 (1994-06-01), None
patent: 43 14 766 (1994-09-01), None
patent: G 94 12 161.3 (1995-05-01), None
patent: 200 07 347 (2000-08-01), None
patent: 10218073 (2003-11-01), None
patent: 0 625 484 (1994-11-01), None
patent: 0 947 471 (1999-10-01), None
patent: 0 947 473 (1999-10-01), None
patent: 1 304 147 (1973-01-01), None
patent: 2 438 851 (2007-12-01), None
patent: 61-8120 (1986-01-01), None
patent: WO 98/21151 (1998-05-01), None
patent: WO 99/67014 (1999-12-01), None
patent: WO 03/043722 (2003-05-01), None
patent: WO 2005/115929 (2005-12-01), None
Printout of Pfleiderer brochure, 2008.
Printout of Pfleiderer website, printed Apr. 20, 2005.
EPA Design Manual, “Fine Pore Aeration Systems”, EPA/625/1-89/023, 2008.
Pfleiderer, “NewAir Diffuser”, Spring of 2002, photograph identified herein as Photo A, exhibited at the IFAT Trade Show, Germany.
Pfleiderer, “NewAir Diffuser”, Spring of 2002, photograph identified herein as Photo B, exhibited at the IFAT Trade Show, Germany.
Pfleiderer, “NewAir Diffuser”, Spring of 2002, photograph identified herein as Photo C, exhibited at the IFAT Trade Show, Germany.
Lakeside Eqpt. Corp., “Lakeside's Newair Fine Bubble Aeration”, sales brochure, copyright date 2003, Lakeside Equipment Corporation, Bartlett, IL, USA.
“Strip Aerators”, sales literature, Aerostrip Corporation, Mar. 1999.
“Strip Aerators Aerostrip Type T” (in German and English), Aqua Consult, 1996-1997.
Schoenenberger, Mark, “Competition Analysis Aerostrip Fine Bubble Membrane Diffuser”, Mar. 20, 2002, pp. 1 to 9, letter, photos, ITT Industries.
“Austria Austrian Trade News Vienna Region”, Austrian Trade Organization Bulletin, Summer 2003, p. 8, The Austrian Trade Commission.
Schoeneberger, Mark, “Confidential Feasibility Study-Sanitaire New Generation High Density Air Diffusion System”, Aug. 5, 1998.
First Examination Report of Indian Patent Office for counterpart parent Indian application No. 938/DELNP/2005 dated Aug. 10, 2005.
Office Action of European Patent Office for counterpart parent European application No. 03 785 236.5 dated May 18, 2007.
PCT Notification of Transmittal of International Preliminary Examination Report for counterpart parent PCT application PCT/US03/25261 dated May 6, 2004.
International Search Report for counterpart parent PCT application PCT/US03/25261 dated Dec. 1, 2003.
Supplementary European Search Report for counterpart parent European application No. 03 785 236.5 dated Jan. 29, 2007.
Photograph of Aquaconsult “Strip Aerator” strip diffuser.
Photograph of Aquaconsult “Strip Aerator” strip diffuser.
Search report of the European Patent Office, Sep. 2008.
Photograph of Aquaconsult “Strip Aerator” strip diffuser, 2008.
Photograph of Aquaconsult “Strip Aerator” strip diffuser, 2008.

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