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Class Information
Number: 405/106
Name: Hydraulic and earth engineering > Fluid control, treatment, or containment > Flow control > Water gate or adjustable weir > Sliding > Vertical > With lift mechanism or latch
Description: Method or apparatus including means (a) to provide a mechanical advantage to raise the gate, or (b) to hold the gate in a predetermined position.










Patents under this class:

Patent Number Title Of Patent Date Issued
8602686 Undershot sluice gate Dec. 10, 2013
8590560 Opening/closing device Nov. 26, 2013
8292542 Undershot sluice gate Oct. 23, 2012
7972081 Sea wall system with displaceable and water level actuating components Jul. 5, 2011
7244078 Control gates Jul. 17, 2007
7094002 Holding apparatus for a dam unit of a dam installation and a method for holding and raising or lowering such a dam unit Aug. 22, 2006
7083359 Control gates Aug. 1, 2006
6698766 Slide gate sealing system Mar. 2, 2004
6623210 Guidance method and guidance system of flood water Sep. 23, 2003
6287051 Fixable seal sluice gate Sep. 11, 2001
6176493 Slide gate and seal therefor Jan. 23, 2001
5842118 Communication system including diversity antenna queuing Nov. 24, 1998
5642534 Spa weir gate Jul. 1, 1997
5361916 Gate-handling crane Nov. 8, 1994
5141361 Door seal for water slide gates Aug. 25, 1992
5125766 Mechanical automatic tilting weir with selfadjusting lowering of the weir-level during larger discharges Jun. 30, 1992
4911313 Linkage lifting apparatus Mar. 27, 1990
4877352 Method and apparatus for control of an upstream water level Oct. 31, 1989
4848962 Slide gate and seals therefor Jul. 18, 1989
4729692 Apparatus and method for quieting flowing waters Mar. 8, 1988
4726709 Sealing assemblies Feb. 23, 1988
4582296 Composite blade for dampers for ducts of large cross sectional areas Apr. 15, 1986
4549837 Penstock Oct. 29, 1985
4524950 Open channel gate valve Jun. 25, 1985
4478534 Flood control system Oct. 23, 1984
4439061 Aluminum stoplogs Mar. 27, 1984
4288059 Sluice gate Sep. 8, 1981
4226553 Slide gates for water and sewage treatment plants Oct. 7, 1980
4147451 Apparatus for valve installation in a flume Apr. 3, 1979











 
 
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