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Class Information
Number: 405/37
Name: Hydraulic and earth engineering > Drainage or irrigation > Control means responsive to sensed condition
Description: Method or apparatus wherein the drainage or irrigation takes place (a) in response to a sensed characteristic, e.g., soil moisture content, or (b) under the control of a timer.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8657528 Brine disposal system for a brine source Feb. 25, 2014
8591147 Combined water storage and detention system and method of precipitation harvesting and management Nov. 26, 2013
8565927 Irrigation interrupter Oct. 22, 2013
8414108 Ejection chip for micro-fluid applications Apr. 9, 2013
8403596 Groundwater control system and method Mar. 26, 2013
8342775 Groundwater control system with purity sensor and method Jan. 1, 2013
8256989 Water-storage and water-purification system Sep. 4, 2012
8219254 Adaptive control for irrigation system Jul. 10, 2012
8104993 Irrigation zone time control Jan. 31, 2012
8066029 Persuasive environmental recovery system Nov. 29, 2011
7937187 Computer controlled fertigation system and method May. 3, 2011
7857546 Method and apparatus for controlling drainage and irrigation of fields Dec. 28, 2010
7857545 Variable volume drain field system Dec. 28, 2010
7572378 Recycled irrigation water treatment system including reverse osmosis Aug. 11, 2009
7502655 Methods for providing optimal light-CO2 combinations for plant production Mar. 10, 2009
7413380 Golf course turf conditioning control system and method Aug. 19, 2008
7404899 Water treatment system Jul. 29, 2008
7358626 Two-wire power and communications for irrigation systems Apr. 15, 2008
7331143 Seismic base isolation by electro-osmosis Feb. 19, 2008
7320559 System and method for dispersing of coal bed sodic water Jan. 22, 2008
7184846 Systems and methods for providing optimal light-CO.sub.2 combinations for plant production Feb. 27, 2007
7172366 Golf course environmental management system and method Feb. 6, 2007
7033108 Turf playing surface aeration and drainage system Apr. 25, 2006
7018134 Foundation and soil irrigation system utilizing wicking materials Mar. 28, 2006
7012394 Battery-powered air handling system for subsurface aeration Mar. 14, 2006
7004677 Enhanced irrigation valve platform assembly Feb. 28, 2006
6997642 Golf course environmental management system Feb. 14, 2006
6955765 Recycled irrigation water treatment system Oct. 18, 2005
6821053 Water flow responsive barrier for gutters and storm drains with rotary actuator Nov. 23, 2004
6792720 Seismic base isolation by electro-osmosis during an earthquake event Sep. 21, 2004
6726402 Roadway surface grating with trash detention during drier conditions Apr. 27, 2004
6726401 Treatment of a leach field Apr. 27, 2004
6712552 Geosynthetic material irrigation system Mar. 30, 2004
6681796 Drainage valve pipe tap assembly Jan. 27, 2004
6652188 Fluid coupled control system for irrigation Nov. 25, 2003
6635172 Apparatus for the enhancement of water quality in a subterranean pressurized water distribution system Oct. 21, 2003
6620329 Golf course irrigation water monitoring and treatment system Sep. 16, 2003
6616375 Arrangement in a drain system and a method for taking care of drain media Sep. 9, 2003
6615653 In situ method for determining soil liquefaction tendency and its prevention by electro-osmosis Sep. 9, 2003
6565284 Infiltration control system and method May. 20, 2003
6558078 Foundation and soil irrigation system utilizing wicking materials May. 6, 2003
6467994 Apparatus and method for beneficial use or handling of run-off or collected water Oct. 22, 2002
6450731 System for applying a liquid, such as a deicing liquid, upon a pavement surface Sep. 17, 2002
6358408 Apparatus for the enhancement of water quality in a subterranean pressurized water distribution system Mar. 19, 2002
6312191 Self-contained ecological watering system Nov. 6, 2001
6273638 Automated air handling system for sports field Aug. 14, 2001
6186423 Irrigation system Feb. 13, 2001
6142703 Encapsulated turf maintenance system Nov. 7, 2000
6132138 Gray water recycling system Oct. 17, 2000
5954450 Method of irrigation control Sep. 21, 1999

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