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Class Information
Number: 405/40
Name: Hydraulic and earth engineering > Drainage or irrigation > Having regulation of flow through channel > At outlet or intake
Description: Method or apparatus wherein the control takes place at each point (a) of egress of water from a channel to the soil, or (b) of ingress of water from the soil to the channel.










Sub-classes under this class:

Class Number Class Name Patents
405/41 Riser or standpipe outlet or intake 67


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8523477 Press-fit restrictor plate Sep. 3, 2013
8192110 Yard storm drain emitter Jun. 5, 2012
8147688 Stormwater chamber detention system Apr. 3, 2012
8062531 Underground stormwater management system and method Nov. 22, 2011
7891907 Drainage device Feb. 22, 2011
7862254 Underground root margin even irrigation apparatus Jan. 4, 2011
7857545 Variable volume drain field system Dec. 28, 2010
7648310 Apparatus for preventing soil inflow in intercepting sewer Jan. 19, 2010
7497234 Storm water flow restriction method and apparatus Mar. 3, 2009
7360965 Cleanout with drainage capabilities Apr. 22, 2008
7337983 Irrigation method and system using variable orifices Mar. 4, 2008
7306399 Stormwater chamber with changing corrugation width angle Dec. 11, 2007
7237981 End cap having integral pipe stub for use with stormwater chamber Jul. 3, 2007
7208082 Drainage water filter for erosion control Apr. 24, 2007
7101114 Storm drain system and method Sep. 5, 2006
7052207 Sediment control drain and method of construction May. 30, 2006
7021336 Even-flow septic tee arrangement Apr. 4, 2006
7011286 Bag valve Mar. 14, 2006
7004677 Enhanced irrigation valve platform assembly Feb. 28, 2006
6945733 Cover for a drainage device Sep. 20, 2005
6926464 Detention pond water quality apparatus and system Aug. 9, 2005
6837652 Nestable catch basin with integral debris trap Jan. 4, 2005
6821053 Water flow responsive barrier for gutters and storm drains with rotary actuator Nov. 23, 2004
6811353 Aquifer recharge valve and method Nov. 2, 2004
6749366 Environmental filter and flow control device Jun. 15, 2004
6746178 Sewer drain receptacle with hose resting seat Jun. 8, 2004
6726402 Roadway surface grating with trash detention during drier conditions Apr. 27, 2004
6692189 Flume for optimization of sewer system and wastewater treatment plant capacity Feb. 17, 2004
6612778 System and method for preventing bluff erosion Sep. 2, 2003
6609852 Sediment control drain and method of construction Aug. 26, 2003
6575662 Water quality management system and method Jun. 10, 2003
6503392 Distribution box for a wastewater treatment system Jan. 7, 2003
6467994 Apparatus and method for beneficial use or handling of run-off or collected water Oct. 22, 2002
6419421 Apparatus for draining land areas with an adjustable system for gravity flow Jul. 16, 2002
6413015 Beaver controlling culvert attachment Jul. 2, 2002
6406216 Storm sewer overflow control device Jun. 18, 2002
6338595 Storm water control header for culverts Jan. 15, 2002
6309139 Manhole with extension wings Oct. 30, 2001
6089790 Self-cleaning intake screen Jul. 18, 2000
6082925 Storm sewer overflow control device Jul. 4, 2000
6012871 Septic tank system and distribution device suitable for use in sloping terrain Jan. 11, 2000
5871304 Precast prerotation basin system Feb. 16, 1999
5588777 Wastewater treatment system Dec. 31, 1996
5553970 Water-saving irrigation device Sep. 10, 1996
5360556 Method of feeding wastewater effluent to filter bed through parallel conduits Nov. 1, 1994
5228802 Underground drainage facility and operation method therefor Jul. 20, 1993
5116164 Device to load reinforcement rods May. 26, 1992
4838731 Septic tank distribution box system Jun. 13, 1989
4765541 Drip emitter housing Aug. 23, 1988
4756827 Liquid flow drainage control Jul. 12, 1988

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