| Patent Number |
Title Of Patent |
Date Issued |
| 7374364 |
Trench drain filter assembly |
May 20, 2008 |
| An improved trench drain filter and modular system therefor for intercepting and treating run off water in a trench drain before discharge into a drainage system. The filter elements include a perforated pipe covered with one or more layers of geotextile material, which is, in turn, |
| 7182874 |
Storm water treatment apparatus employing dual vortex separators |
February 27, 2007 |
| A stormwater treatment device for removing floatables, solids and suspended particles and the like from stormwater run off, whereby a removable assembly is provided for installation into a manhole basin, the assembly including a pass-through member which receives stormwater from an i |
| 7165913 |
Trench drain filter assembly |
January 23, 2007 |
| An improved trench drain filter and modular system therefor for intercepting and treating run off water in a trench drain before discharge into a drainage system. The filter elements include a perforated pipe covered with one or more layers of geotextile material, which is, in turn, |
| 7040838 |
High capacity catch basin filtration system with adjustable deflector ring |
May 9, 2006 |
| 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 interior walls of t |
| 6986621 |
Trench drain filtration system |
January 17, 2006 |
| A trench drain filtration system having a filter body dimensioned to fit within a trench drain forming a trough or reservoir obstructing at least a portion of the trench drain. The filter body is supported by a filter body support dimensioned to cooperatively engage with the trench drain |
| 6976808 |
Catch basin filtration system will disposable silt/contaminant collector |
December 20, 2005 |
| 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 interior walls of the |
| 6905599 |
Prefilter for water treatment |
June 14, 2005 |
| An apparatus and method for use in conjunction with grassy swales and sidewalk cross drains to collect and filter or otherwise treat dirty or polluted storm water runoff or other fluid is disclosed. One or more prefilters are installed at one or more inlets to a grassy swale or a sid |
| 6875350 |
Chitosan enhanced dewatering bag |
April 5, 2005 |
| A chitosan enhanced dewatering bag reduces the amount of silt, sedimentation and suspended solids from incoming water. The dewatering bag includes a first permeable membrane having a first open end or opening, and one or more applications of chitosan located within the bag. A second |
| 6872029 |
Hard bodied high capacity catch basin filtration system |
March 29, 2005 |
| A catch basin filtration system is disclosed. A filter body is dimensioned 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 interior wa |
| 6733209 |
Chitosan enhanced erosion control rolls |
May 11, 2004 |
| A chitosan enhanced erosion control device is described. A walled elongated core member is disclosed having a first open end, a second end, an interior space and one or more openings in the wall communicating the interior space with the exterior of the core member. An outer filter me |
| 6641335 |
Erosion control rolls |
November 4, 2003 |
| An erosion control device is described. A walled elongated core member is disclosed having a first open end, a second end, an interior space and one or more openings in the wall communicating the interior space with the exterior of the core member. An outer filter member surrounds the co |
| 6551023 |
Soft bodied high capacity catch basin filtration system |
April 22, 2003 |
| A catch basin filtration system, comprising a filter body, dimensioned 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 interior walls |
| 6527477 |
Erosion control rolls |
March 4, 2003 |
| An erosion control device is described. A walled elongated core member is disclosed having a first open end, a second end, an interior space and one or more openings in the wall communicating the interior space with the exterior of the core member. An outer filter member surrounds the co |
| 6241882 |
Sump & filter device for drainage inlets |
June 5, 2001 |
| A sump and filter device for use in drain inlets is disclosed. The device comprises a platform having one or more openings for receiving fluid flow. The platform is positioned and supported above the drain exits situated in the lower portion of the drain inlet. The platform is dimensione |
| 5720574 |
Contaminant absorbing drainage trough apparatus |
February 24, 1998 |
| A structure for use with water drainage inlets includes an outside wall portion, a perforated bottom portion, and an inside wall portion. The outside wall, bottom, and inside wall together define a trough for retention of a replaceable filter media. The trough is installed on the ins |
