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Class Information
Number: 405/105
Name: Hydraulic and earth engineering > Fluid control, treatment, or containment > Flow control > Water gate or adjustable weir > Sliding > Vertical > Gate unseating
Description: Method or apparatus wherein (a) means are provided for shifting the movable member out of contact with a cooperating sealing surface prior to or at the moment vertical movement begins, or (b) the movable member and the cooperating sealing surface are so configured that as the member is moved vertically from its sealing position, the member moves entirely off the sealing surface.

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
8246272 Actuated spill barrier Aug. 21, 2012
7972081 Sea wall system with displaceable and water level actuating components Jul. 5, 2011
6287051 Fixable seal sluice gate Sep. 11, 2001
4832527 Vertically reciprocable gates for the control of a liquid media May. 23, 1989
4582451 Floodgate panel and sealing means therefor Apr. 15, 1986
4288059 Sluice gate Sep. 8, 1981
4265564 Sluice gate assembly May. 5, 1981
4070863 Sluice gate assembly with extrudable seal Jan. 31, 1978

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