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Class Information
Number: 405/39
Name: Hydraulic and earth engineering > Drainage or irrigation > Having regulation of flow through channel
Description: Method or apparatus wherein means are provided to cause or control fluid flow within a flow confining passage.


Sub-classes under this class:

Class Number Class Name Patents
405/40 At outlet or intake 50


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
7520695 Water provisioning device Apr. 21, 2009
7419334 Thruster flood control method Sep. 2, 2008
7186058 Stormwater detention system and method Mar. 6, 2007
7101114 Storm drain system and method Sep. 5, 2006
7052206 System and method for use of an extention basin as a storm water control device May. 30, 2006
7052209 Corrugated stormwater chamber May. 30, 2006
7025532 Apparatus and method for transporting water with liner Apr. 11, 2006
6893864 Apparatus for aerating a particulate material May. 17, 2005
6886585 Soft grip drain May. 3, 2005
6726401 Treatment of a leach field Apr. 27, 2004
6692186 Apparatus and method for transporting water Feb. 17, 2004
6692189 Flume for optimization of sewer system and wastewater treatment plant capacity Feb. 17, 2004
6648549 Modular drainage channels Nov. 18, 2003
6565284 Infiltration control system and method May. 20, 2003
6558078 Foundation and soil irrigation system utilizing wicking materials May. 6, 2003
6522972 Method for determining an instantaneous unit hydrograph Feb. 18, 2003
6517283 Cascading chute drainage system Feb. 11, 2003
6409427 Soil erosion collector Jun. 25, 2002
6371690 Method and apparatus for handling water at low and high feed rates Apr. 16, 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
6254307 Bi-partite sluiceway apparatus with silt removal tray components Jul. 3, 2001
6230468 Foundation waterproofing system May. 15, 2001
6109827 Method and system for flood irrigation Aug. 29, 2000
6062767 Storm water receptor system May. 16, 2000
5993111 Method and system for flood irrigation Nov. 30, 1999
5938372 Subsurface irrigation apparatus and method Aug. 17, 1999
5720575 Water control and diversion headgate and method of manufacture Feb. 24, 1998
5674029 Weir Oct. 7, 1997
5667336 Furrow irrigation Sep. 16, 1997
5553970 Water-saving irrigation device Sep. 10, 1996
5531888 Arrangement for separation of coarse matter and/or bulky solids in rainwater relief structures Jul. 2, 1996
5501044 Sub-floor drain conduit for water-control systems Mar. 26, 1996
5462075 Method and device for controlling a flow of fluid Oct. 31, 1995
5451315 Ore pass shaff water drainage means Sep. 19, 1995
5365970 Gravity flow chemigation system and low level shutoff valve Nov. 22, 1994
5342144 Stormwater control system Aug. 30, 1994
5322387 Waste water drainfield Jun. 21, 1994
5310281 Subsurface irrigation system May. 10, 1994
5161912 Apparatus and methods for agricultural irrigation Nov. 10, 1992
5133622 Water distribution system Jul. 28, 1992
5098568 Septic tank system with controllable distribution means Mar. 24, 1992
5054690 Drip irrigation multi-outlet emitter head assembly Oct. 8, 1991
5039251 Apparatus and methods for agricultural irrigation Aug. 13, 1991
5020567 Drainage valve having a flexible flap with an edge taper Jun. 4, 1991
5002428 Irrigation method Mar. 26, 1991
4943184 Irrigation device Jul. 24, 1990
4930934 Surface, subsurface, continuous feed moisture maintenance system apparatus and method Jun. 5, 1990
4900189 Irrigation device and facilities for the pulsed delivery of an irrigation liquid Feb. 13, 1990
4890955 Control device for underground drainage network Jan. 2, 1990

1 2


 
 
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