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| Number | Title | Issue Date |
| 7513994 | Aeration vessel and aerator assembly for use in a wastewater treatment system An aerator assembly for use in the aeration vessel of a wastewater treatment system comprising a rigid tubular member having an upper end and a lower end, and a diffuser assembly, the diffuser assembly comprising a flexible connector and a diffuser head, the flexibl... | 04/07/2009 |
| 7314546 | Disinfectant system and method for the chemical treatment of wastewater A system for the chemical treatment of wastewater may be discharged in a night spray system, an on demand system or a dosing system. Tank 12 receives wastewater, and a discharge pump 16 pumps wastewater from the tank in the night spray system. A sensor... | 01/01/2008 |
| 7294261 | Vessel assembly for use in a wastewater treatment system A vessel assembly for use in a wastewater treatment system having a first vessel, a second vessel, a first gusset assembly attached to and connecting the first and second vessels and a second gusset assembly attached to and connecting the vessels, at least one of th... | 11/13/2007 |
| 7294260 | Aerobic wastewater treatment plant having 3-compartment vessel An aerobic wastewater treatment plant having a peripheral wall, at least three compartments being formed within the peripheral wall in conjunction with bottom wall, the peripheral wall having first and second end walls which are radiused and having at least portions... | 11/13/2007 |
| 7186330 | Disinfectant system for use with residential aerobic wastewater treatment plants A system for introducing a liquid disinfectant into treated wastewater comprising a source of liquid disinfectant, a sensor to detect flow of treated wastewater from a wastewater treatment system, a pump to introduce the liquid disinfectant into the treated wastewat... | 03/06/2007 |
| 7178677 | Aeration vessel for use in aerobic wastewater treatment system An aeration vessel for use in a aerobic wastewater treatment system, the aeration vessel comprised of a bottom section having a bottom wall and an inverted frustoconical side wall, a top section having a frustoconical side wall and a partition having an inverted fru... | 02/20/2007 |
| 7149701 | Regulatory compliance system and method The present invention provides an electronic regulatory compliance system and method that permits a regulatory agency to efficiently and accurately monitor thousands of environmental equipment installations, such as homeowner wastewater treatment plants, for complia... | 12/12/2006 |
| RE39203 | Current and aeration system for wastewater plant A defined current and aeration system for the aeration chamber of an aerobic wastewater treatment plant is disclosed. It includes the release of oxygenation gas or air into the aeration chamber through a diffuser or the like at a position such that the air injected ... | 07/25/2006 |
