Class 405/101 - Overflow

Subclass of Class 405 - Hydraulic and earth engineering
Definition: Method or apparatus wherein the liquid flows over the top
No. of patents: 34
Last issue date: 06/01/2010

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Number	Title	Issue Date
7726907	Automatic trip gate An automatic trip gate for installation in a gate support structure at a bank of an impounded body of water. The automatic trip gate controls a release of an overflow of water through the gate support structure upon the occurrence of an overflow event. The automatic...	06/01/2010
7234894	Storm drain basin gate system An automatically openable and closeable gate system that will find primary use with the street curb opening to a catch basin or vault of a storm drain system, and for other similar openings, the system having a gate which during dry and low-flow water drainage situa...	06/26/2007
7172027	Expanding tubing A method of expanding tubing downhole comprises providing a section of expandable tubing of a first diameter, and axially compressing the tubing to induce buckling, such that the buckled portion describes a larger second diameter. The resulting diametric expansion m...	02/06/2007
7168497	Downhole sealing A method of providing a downhole seal, such as a packer, in a drilled bore between inner tubing and outer tubing comprises: providing an intermediate tubing section defining a seal arrangement for engaging with the inner tubing; and radially plastically deforming th...	01/30/2007
7144197	Apparatus and method for controlling wave characteristics The present invention relates to a variable floor (1) for a body of water, the variable floor (1) including a base portion (2) for location on or within a fixed floor (106) of the body of water and means to adjust the slope of the upper s...	12/05/2006
7083359	Control gates A control gate is adapted to be installed across a channel for liquids. The Control gate has a barrier member capable of vertical or tilting movement and it is either slidingly or pivotally mounted to a frame of the control gate. In one instance, the control gate ha...	08/01/2006
7004257	Apparatus and methods for separating and joining tubulars in a wellbore The present invention provides methods and apparatus for cutting tubulars in a wellbore. In one aspect of the invention, a cutting tool having radially disposed rolling element cutters is provided for insertion into a wellbore to a predetermined depth where a tubula...	02/28/2006
6976539	Tubing anchor A method of installing a liner in a drilled bore below a section of bore previously lined with casing comprises the steps of: running a length of liner into the bore such that at least an upper end of the liner is positioned in overlapping relation with at least a l...	12/20/2005
6923261	Apparatus and method for expanding a tubular A method of isolating a section of downhole tubing comprises: running a length of expandable tubing (20) into a tubing-lined borehole (12, 14) and positioning the expandable tubing (20) across a section of tubing to be isolated; deforming at lea...	08/02/2005
6920935	Expandable downhole tubing A tubing coupling method is provided. In one aspect, the method comprises providing a length of expandable tubing and a length of larger diameter non-expanding tubing, connecting an end portion of the expandable tubing to an end portion of the non-expanding tubing, ...	07/26/2005
6811354	Saltwater intrusion prevention system A saltwater intrusion prevention system for use at an interface between a fresh water body and a saltwater body includes a water recovery subsystem for recovering fresh water from a fresh water body. A retention reservoir in fluid communication with the water recove...	11/02/2004
6453483	Spa weir system A spa weir includes a support member forming an opening between a spa body interior and a filter housing interior. Two or more spa doors are located at the opening to control the flow of water through the opening, the spa doors being pivotally connected t...	09/24/2002
5758989	Linear action hurter A hurter for use in conjunction with a wicket dam prop at a downstream side f a wicket, the hurter comprising a block having therein on an upper surface thereof a bearing for receiving a free end of the prop, a ramp disposed downstream of the block on a ba...	06/02/1998
5577863	Self-Actuating sluice gate A sluice gate for controlling the discharge of water through a gateway in a flood irrigation system mounted with stub axles defining a hinge axis upstream of the gateway, and comprising a closure element mounted for swing movement about that axis and able...	11/26/1996
5468090	Bending weir A flap weir with a base wall arranged between two side walls, a flap is fixed and sealed in a non-rotary manner by one longitudinal edge to the base wall, the other longitudinal edge forming an overflow edge. The flap is modified by natural deformation oc...	11/21/1995
5433555	Wicket dam and lifting jack The arrangement includes a downstream jack pivotably mounted about an axis in the floor of the dam and a rotating abutment member carried by the wicket for receiving an end of a jack piston rod. The jack is restored to an end angular orientation when the ...	07/18/1995
5211700	Movable dam gate for regulating water in a navigable pass A wicket gate for providing a dam in a navigable waterway is described. A cket gate is connected at one end to an axle which permits rotation of the wicket gate from a horizontal to a vertical position. The axle is supported on first and second carrier be...	05/18/1993
5199812	Hydraulic fixed strut game A movable dam gate hydraulically driven through a fixed strut to maintain regulate a pool of water upstream of a dam, the present gate structure is placed in series as a plurality of units to form a desired length of movable dam. The dam gates of the inv...	04/06/1993
5171102	Wier construction A weir construction has a weir gate which is tiltable around an axis suspended in a canal section above the bottom thereof, whereby the axis is situated between, and at a distance from, the lower and the upper edge of the weir gate closer to the lower edg...	12/15/1992
5158396	Adjustable levee gate There is disclosed a liquid confinement structure to control the depth of water contained by earthen levees in a rice field or the like and to allow excess water to flow through a gate therein to prevent overflow and washout of the levees. The structure i...	10/27/1992
5156489	Adjustable flume A fully portable flume for a canal or water channel comprising a horizontal sill across the width of said flume; means to raise or lower the sill while maintaining it in a horizontal position; a movable transverse wall connected at its upper edge to the s...	10/20/1992
4934867	Sealing device ensuring lateral tightness of a weir gate This invention relates to a sealing device ensuring lateral tightness of a weir gate with respect to the corresponding lock wall, of the type comprising a lip disposed over the whole length of each lateral face of the gate and a rounded rib extending the ...	06/19/1990
4787774	Fluid control apparatus A flexible membrane supported on a series of compound leaf springs is mounded on the fixed crest of a dam or waterway to retain fluid at or below a predetermined maximum level. The apparatus is adapted to automatically release fluid which rises above this...	11/29/1988
4753550	Apparatus for control of a liquid level, especially water level An apparatus for control of a liquid level, especially water level, comprising a partition (10) arranged in a drain channel (24) and having an upper edge (12) which serves as overflow. At its lower or bottom edge (14) opposite the upper overflow edge (12)...	06/28/1988
4549837	Penstock An improved penstock for water-flow control provides the capability of establishing a constant water level within a levee or a dike and is continuously adjustable between a high and a low water level. The penstock has an erosion-resistant flow channel whi...	10/29/1985
4505612	Air admission apparatus for water control gate An apparatus is disclosed for admitting atmospheric air to a bounded volume of air on a downstream side of a crest gate where the bounded volume is defined by the gate and a curtain of water spilling over the gate. The apparatus comprises a plurality of r...	03/19/1985
4455106	Flash gate board A water control flash gate board uses a torsion spring to bias it in a upright water holding position. When the pressure on the upstream side of the gate board is sufficient to overcome the force of the torsion spring, the gate board will pivot towards a ...	06/19/1984
4352592	Gate system for a hydraulic dam The gate system comprises a wicket which is capable of taking up a number of different positions corresponding to predetermined angles of inclination, an operating device comprising a pivotally mounted jack, and a rotatable abutment member carried by the ...	10/05/1982
4332506	Wave-and-tide-pump apparatus and method thereof A wave-and-tide-pump apparatus and method to provide a continuous flow of water from a large body of water to a small body of water, whereby the wave-and-tidal action of the first larger body of water is funneled into the second smaller body of water by m...	06/01/1982
4324506	Self-regulating fluid control valves A self-regulating tide gate is installed on a conduit connecting an open body of water with a protected body of water. The tide gate comprises a mounting plate secured to the conduit at its end in the open body of water, the mounting plate defining an ope...	04/13/1982
4114381	Positive flow estuary structure A barrier device comprising a plurality of gated structures extending between opposite shores of a tidal estuary provides a means of preventing intrusion of heavier, colder sea water with each incoming tide and to then be the means for ejecting large volu...	09/19/1978
4103496	Collapsible and expansible barrage A collapsible and expansible barrage comprising a threshold structure dised at the bottom of the waterway, a metallic flap, provided with an upturned-glass type of air-tank, hinged to said threshold structure, and a flexible sheet connected at one of its...	08/01/1978
4103497	Manoeuvrable weir Manoeuvrable weir comprising at least one flap hinged to a threshold shel laid on the bottom of a waterway to be dammed. The flap foresees openings on its surface from which lead out conduits which debouch in correspondence of the threshold structure, cr...	08/01/1978
4073147	Water gate control system The present invention discloses a water gate control system which selects either the automatic mode or forced mode, in the automatic mode the gate being automatically swung depending upon the level of a stream or water-way between the upright or closing p...	02/14/1978

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Class 405/101 - Overflow