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Class Information
Number: 405/90
Name: Hydraulic and earth engineering > Fluid control, treatment, or containment > Flow control > Water gate or adjustable weir > Removable
Description: Method or apparatus relating to a water gate which opens and closes by removing and replacing the entire gate structure.










Sub-classes under this class:

Class Number Class Name Patents
405/91 Flexible 76


Patents under this class:

Patent Number Title Of Patent Date Issued
8651767 Rotatable wheel box service panel door and equalizer Feb. 18, 2014
8622652 Overflow and underflow doors Jan. 7, 2014
8425150 Rotatable wheel box service panel door and equalizer Apr. 23, 2013
8393827 Box service panel door and equalizer Mar. 12, 2013
7281879 Portable flood-barriers system Oct. 16, 2007
7033112 Water-retaining structure Apr. 25, 2006
6840711 Flood control panel system Jan. 11, 2005
6837655 Submersible canal bypass Jan. 4, 2005
6604889 Sluice gate wall thimble Aug. 12, 2003
6543968 Submersible canal bypass Apr. 8, 2003
6540437 End dam assembly for drainage channel Apr. 1, 2003
6409427 Soil erosion collector Jun. 25, 2002
6287051 Fixable seal sluice gate Sep. 11, 2001
6213683 Flexible film weir Apr. 10, 2001
6132140 Method for the fabrication of a dam or barrier Oct. 17, 2000
5997213 Ditch check Dec. 7, 1999
5895579 Adjustable inlet for waste water treatment apparatus Apr. 20, 1999
5882144 Device and method for triggering the destruction of a selected part of a hydraulic structure, such as a levee, a dike or a backfilled dam, and hydraulic structure comprising such a device Mar. 16, 1999
5795467 Adjustable inlet for waste water treatment apparatus Aug. 18, 1998
5791817 Ditch dam Aug. 11, 1998
5720575 Water control and diversion headgate and method of manufacture Feb. 24, 1998
5680989 Adjustable weir for liquid distribution systems Oct. 28, 1997
5195846 Spillway for discharging extraordinary floods at dams having at least two flood discharge structures Mar. 23, 1993
5156489 Adjustable flume Oct. 20, 1992
5077945 Doorway flood barrier Jan. 7, 1992
5032038 Overflow spillway for dams, weirs and similar structures Jul. 16, 1991
4881847 Artificial water lagoons Nov. 21, 1989
4729692 Apparatus and method for quieting flowing waters Mar. 8, 1988
4467645 Weir Aug. 28, 1984
4330224 Collapsible rubber dam installation May. 18, 1982
4147451 Apparatus for valve installation in a flume Apr. 3, 1979
4024717 Folding aluminum rice and irrigation box May. 24, 1977











 
 
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