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| Number | Title | Issue Date |
| 7744756 | Wastewater flow diverter An apparatus for diverting wastewater in septic system comprises a top, a side adjoining and extending downwardly from the top, the top and the side form an inner volume and a partially open bottom. The bottom can be fully open. A first opening extends upwardly from... | 06/29/2010 |
| 7396471 | Sediment control drain and method of construction An erosion control basin is a molded open topped receptacle that has support flanges that will support the basin on the interior of a storm drain grate frame. A filter is formed around an upright perforated drain pipe that is on the interior of the basin and which o... | 07/08/2008 |
| 7387468 | Orifice shield for drainage pipe An orifice shield for distributing water flowing from an orifice in a pipe and preventing blockage of the orifice. The orifice shield includes a housing including a cage, the cage being defined by a first plate joined to a second plate via fins, the fins being joine... | 06/17/2008 |
| 7325568 | Sprinkler valve manifold A one-piece manifold for use in a sprinkler valve assembly includes an intake pipe having a water inlet and a plurality of ports adapted for fluid connection to inlets of a plurality of respective sprinkler valve assemblies. An outlet is attached to the intake, such... | 02/05/2008 |
| 7252458 | Mitred grate and drain cover A drain cover and pipe combination comprises a drain cover including a substantially elliptical frame portion defining a space, the space having an axis substantially normal to the frame, and at least one cross piece located in the space so as to define a plurality ... | 08/07/2007 |
| 7237980 | System for infiltrating and irrigating water into soil A soil infiltration irrigation system includes a plurality of water-permeable containers and a water-feeding pipeline communicating with each of the containers. The containers are provided with connectors for connecting to the water-feeding pipeline and are also pro... | 07/03/2007 |
| 7232278 | Adjustable outlet riser An adjustable outlet riser including a riser (54), a reducer (58) sealed to the riser (54), and an adjustable riser (56) having a tight but slidable fit with the reducer (58). A pond for treatment of aqueous solutions has a piping ... | 06/19/2007 |
| 7156578 | Aquifer recharge valve and method An aquifer recharge valve assembly comprises a valve movable along the interior of a pipe section to open and close aquifer recharge openings through the pipe section. The position of the valve controls the extent to which the recharge openings are available for del... | 01/02/2007 |
| 7134808 | Drain sealing Plastic liner sections define a drainage channel when placed end to end. Each end has a stiff, double walled flange at each side of the end adapted to butt up to a similar flange at the adjacent end of the next sections. The double walled construction of the flanges... | 11/14/2006 |
| 7128839 | Process and system for enhanced nitrogen removal in a wetland and recirculating sand filter wastewater treatment system A process and system for enhanced nitrogen removal in a wastewater treatment facility comprises a constructed wetlands and a recirculating sand filter. The effluent from the constructed wetlands passes through the recirculating sand filter to facilitate ammonia conv... | 10/31/2006 |
| 7105084 | Hybrid flow pond A passive treatment system for removing metals, especially manganese, from mine drainage and other aqueous solutions. The Hybrid Flow Pond (HFP) is an open, pond-like structure utilizing a horizontal or vertical operational flow path through a bed of treatment media... | 09/12/2006 |
| 7101114 | Storm drain system and method A storm drain system is provided to prevent rising water from flowing substantially vertically out of a storm drain inlet. The storm drain system comprises a seat generally horizontally mounted within a chamber and a moveable buoyant door assembly responsive to risi... | 09/05/2006 |
| 7096959 | System and method for providing a renewable source of spring water for human consumption A system and method for providing a renewable source of spring water includes a spring well for withdrawing spring water from an aquifer, and a condenser for condensing water from the atmosphere. The condensed water is placed into the aquifer from which the spring w... | 08/29/2006 |
| 7074326 | Curb-and-grate inlet filter A curb-and-grate inlet filter is provided for temporarily covering, during nearby construction activities, the curb-and-grate inlet of a storm drainage system so as to filter from storm water runoff silt and debris attendant such construction. The curb-and-grate inl... | 07/11/2006 |
| 7052207 | Sediment control drain and method of construction An erosion control basin is a molded open topped receptacle that has support flanges that will support the basin on the interior of a storm drain grate frame. A filter is formed around an upright perforated drain pipe that is on the interior of the basin and which o... | 05/30/2006 |
| 7040838 | High capacity catch basin filtration system with adjustable deflector ring A catch basin filtration system having a filter body dimension to fit within a drain inlet forming a trough or reservoir obstructing at least a portion of the inlet. The filter body is supported by a filter body support dimensioned to cooperatively engage with the i... | 05/09/2006 |
| 6976808 | Catch basin filtration system will disposable silt/contaminant collector A catch basin filtration system is disclosed. A filter body is dimensioned to fit within an drain inlet forming a trough obstructing at least a portion of the inlet. The filter body is supported by a filter body support dimensioned to cooperatively engage with the i... | 12/20/2005 |
| 6953156 | Irrigation method for sloping land A method for providing efficient uniform delivery of a predetermined amount of water needed for a specific crop planted on sloping land using an irrigation system laid out following a topographical map to maintain a constant pressure head for all of the discharge po... | 10/11/2005 |
| 6942425 | Mitred grate and drain cover A drain cover and pipe combination comprises a drain cover including a substantially elliptical frame portion defining a space, the space having an axis substantially normal to the frame, and at least one cross piece located in the space so as to define a plurality ... | 09/13/2005 |
| 6893570 | Metal removal process The slag-only Vertical Flow Pond, which we have developed, is a passive treatment component capable of removing large concentrations of metals, especially manganese, from water to extremely low concentrations while neutralizing acidity and producing alkalinity. An i... | 05/17/2005 |
| 6837652 | Nestable catch basin with integral debris trap A catch basin for draining water into an underground drainage conduit through a riser includes a receptacle having an open top and a base portion; an integral outflow conduit extending upwardly from an outlet opening in the base portion and having an inlet opening w... | 01/04/2005 |
| 6811353 | Aquifer recharge valve and method An aquifer recharge valve assembly comprises a valve movable along the interior of a pipe section to open and close aquifer recharge openings through the pipe section. The position of the valve controls the extent to which the recharge openings are available for del... | 11/02/2004 |
| 6749366 | Environmental filter and flow control device The present invention relates generally to a system for use in filtering a variety of environmental substances, and more particularly to a method and apparatus for filtering such substances as soil, sediment, and debris from such things as water runoff that may be e... | 06/15/2004 |
| 6746178 | Sewer drain receptacle with hose resting seat A sewage drain receptacle for underground sewage systems for campgrounds or RV parks that includes a hose resting seat coupled to the top orifice of a drain line and a sewage cap for closing the top orifice. The hose resting seat extends along a portion of the lengt... | 06/08/2004 |
| 6746179 | System component, system and method for aerating of compost and the draining of excess liquid contained therein A system component, method of using, manufacturing and installing such, which facilities both the aerating of compost and the draining of liquid formed therein, utilizing a Especially formed component having an extruded longitudinal projection with a surface in whic... | 06/08/2004 |
| 6712553 | Grid drain system A pitless drainage system for removing water from the footings of a structure. A vertical riser is located outside the structure, extending from above the ground to a subterranean location proximate a footing drain. A well collector extends downwardly from the verti... | 03/30/2004 |
| 6692189 | Flume for optimization of sewer system and wastewater treatment plant capacity A flume for diurnally storing and releasing municipal sewage in its conveyance network of sewers and interceptor piping to reduce peak flow rates in a sewer system and the downstream wastewater treatment plant. The disclosed invention reduces peak flow ra... | 02/17/2004 |
| 6609852 | Sediment control drain and method of construction An erosion control basin is a molded open topped receptacle that has support flanges that will support the basin on the interior of a storm drain grate frame. A filter is formed around an upright perforated drain pipe that is on the interior of the basin ... | 08/26/2003 |
| 6595721 | Mitred grate and drain cover A mitred grate and drain cover comprises a peripheral edge having an upper and lower surface and a substantially elliptical shape which defines a space, and a plurality of cross pieces within the space. Depending sidewalls extend from the lower surface of... | 07/22/2003 |
| 6582156 | Level control device for wetlands wastewater treatment facilities A level control device for constructed wetlands which is suitable for use in cold climates. The device comprises an outer casing with an inner diameter at least about 4 inches and less than about 18 inches with an overflow weir, in fluid communication wit... | 06/24/2003 |
| 6428693 | Temporary silt guard for sewer inlet A temporary silt guard for temporarily enclosing the open upper end of a drop inlet during the construction of a road system in commercial and residential developments is adapted to fit over and seat upon the open end of the drop inlet to enable runoff wa... | 08/06/2002 |
| 6357969 | Method of fabricating a groundwater monitoring system and a monitoring system formed using said method A method of fabricating a groundwater monitoring system and a monitoring system formed using said method wherein a housing containing a groundwater monitoring well is slidably attached to a sheet piling section. After the sheet piling section is inserted ... | 03/19/2002 |
| 6309139 | Manhole with extension wings A manhole for a storm sewage system comprising a structure having at least two outwardly extending substantially vertical flat panels projecting outwardly from the exterior surface a predetermined distance on opposite sides of the base portion of the manh... | 10/30/2001 |
| 6261445 | Temporary silt guard for sewer inlet A temporary silt guard for temporarily enclosing the open upper end of a drop inlet during the construction of a road system in commercial and residential developments is adapted to fit over and seat upon the open end of the drop inlet to enable runoff wa... | 07/17/2001 |
| 6132139 | Water level regulating device for paddy field A paddy field water level regulating device 6 installed between a water pipe buried along a farm road 43 and a farming plot 42, the device consisting of a cylindrical feed and drain basin 60 with a closed bottom, having a farming plot feed and drain port ... | 10/17/2000 |
| 6004457 | Temporary silt guard for sewer inlet A temporary silt guard for temporarily enclosing the open upper end of a drop inlet during the construction of a road system in commercial and residential developments is adapted to fit over and seat upon the open end of the drop inlet to enable runoff wa... | 12/21/1999 |
| 5908266 | Flow drain Below ground drain and conduit member to receive surface water. The member comprises two (2) extruded plastic assemblies that are joined together to form one (1) unit. This unit assembly is attached to a plastic carrier pipe, in a longitudinal fashion. Th... | 06/01/1999 |
| 5882141 | Low energy precision flooding irrigation apparatus and method An irrigation conduit (10) includes a plurality of emitters (11) spaced apart along its length. A conveyance channel (12) is connected to each emitter (11) and is long enough so that a distal end (14) of the conveyance channel (12) may be positioned at or... | 03/16/1999 |
| 5852901 | Stackable riser for on-site waste and drainage systems A plastic stackable riser for providing a grade level access for underground components such as septic tanks, distribution boxes, and drop boxes, including a cylindrical side wall having a top free edge and a bottom edge. The top free edge defines a first... | 12/29/1998 |
| 5843306 | Temporary silt guard for storm water collection basin inlet A temporary silt guard for temporarily enclosing the open upper end of a drop inlet during the construction of a road system in commercial and residential developments is adapted to fit over and seat upon the open end of the drop inlet to enable storm run... | 12/01/1998 |
