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Class Information
Number: 405/101
Name: Hydraulic and earth engineering > Fluid control, treatment, or containment > Flow control > Water gate or adjustable weir > Swinging > About horizontal axis > Overflow
Description: Method or apparatus wherein the liquid flows over the top of the water gate when it is opened.










Sub-classes under this class:

Class Number Class Name Patents
405/102 Collapsible 15


Patents under this class:

Patent Number Title Of Patent Date Issued
8059742 Method and device for operating MIMO air interfaces in mobile communications systems Nov. 15, 2011
7726907 Automatic trip gate Jun. 1, 2010
7600944 Flood vent Oct. 13, 2009
7234894 Storm drain basin gate system Jun. 26, 2007
6811354 Saltwater intrusion prevention system Nov. 2, 2004
6453483 Spa weir system Sep. 24, 2002
5758989 Linear action hurter Jun. 2, 1998
5577863 Self-Actuating sluice gate Nov. 26, 1996
5468090 Bending weir Nov. 21, 1995
5433555 Wicket dam and lifting jack Jul. 18, 1995
5211700 Movable dam gate for regulating water in a navigable pass May. 18, 1993
5199812 Hydraulic fixed strut game Apr. 6, 1993
5171102 Wier construction Dec. 15, 1992
5158396 Adjustable levee gate Oct. 27, 1992
5156489 Adjustable flume Oct. 20, 1992
4934867 Sealing device ensuring lateral tightness of a weir gate Jun. 19, 1990
4787774 Fluid control apparatus Nov. 29, 1988
4753550 Apparatus for control of a liquid level, especially water level Jun. 28, 1988
4549837 Penstock Oct. 29, 1985
4505612 Air admission apparatus for water control gate Mar. 19, 1985
4455106 Flash gate board Jun. 19, 1984
4352592 Gate system for a hydraulic dam Oct. 5, 1982
4332506 Wave-and-tide-pump apparatus and method thereof Jun. 1, 1982
4324506 Self-regulating fluid control valves Apr. 13, 1982
4114381 Positive flow estuary structure Sep. 19, 1978
4103497 Manoeuvrable weir Aug. 1, 1978
4103496 Collapsible and expansible barrage Aug. 1, 1978
4073147 Water gate control system Feb. 14, 1978











 
 
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