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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:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 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 |
| 4721408 |
Water distribution system |
Jan. 26, 1988 |
| 4685828 |
Irrigation channel gate |
Aug. 11, 1987 |
| 4550878 |
Drip irrigator with pressure responsive flow regulator |
Nov. 5, 1985 |
| 4522533 |
Flow restrictor |
Jun. 11, 1985 |
| 4156396 |
Root irrigation dripilator device with spray head |
May. 29, 1979 |
| 4103495 |
Flow control device for an irrigation ditch |
Aug. 1, 1978 |
| RE29546 |
Drip level irrigation |
Feb. 21, 1978 |
| 3951163 |
Automatic anti-siphon valve |
Apr. 20, 1976 |
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