Class 405/99 - Swinging

Subclass of Class 405 - Hydraulic and earth engineering
Definition: Method or apparatus wherein the water gate turns about a
No. of patents: 25
Last issue date: 10/14/2008

Number	Title	Issue Date
7435035	Watertight gate having gate leaf connected to foldable support An improved watertight gate for use in a port or canal is described. The watertight gate generally comprising two gate leaves and associated with each gate leaf is a foldable support structure and a gate position controller. The gate position controller interacts wi...	10/14/2008
7143547	Spring assisted swing door operator A motorized universal swing door operator includes a motor driving a gear reduction drive mechanism having an output shaft adapted to be connected to a swing door operating arm. The output shaft supports a sprocket around which is trained a chain having opposite end...	12/05/2006
7114878	Irrigation gate system An irrigation gate system installed in a channel (such as a ditch or canal) for controlling the flow of water through the channel maintaining a desired level of water upstream from the irrigation gate system or for controlling water flow downstream from the irrigati...	10/03/2006
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
7044165	Outflow regulator for a gravity-fed liquid outlet An outflow regulator for a gravity-fed liquid outlet of a liquid reservoir comprising a restriction plate mountable within the liquid outlet for limiting a flow rate of an effluent. The restriction plate allows a lower passage for the effluent when a first level of ...	05/16/2006
7037039	Method and apparatus for an improved lock and dam assembly A method of assembling a lock and dam system is disclosed to minimize the rate of structural fatigue associated with closing of the lock and dam system. The lock and dam system includes one or more gates that may include a plurality of girders, plates and associated...	05/02/2006
7029342	Reverse gate flow director A reverse gate flow director comprising a flow director base plate of generally trapezoidal shape, having mounting holes, a leading edge and a trailing edge configured to minimize water turbulence, a flow director fin of generally rectangular shape, having a leading...	04/18/2006
6779947	Gate systems and methods for regulating tidal flows A tidal gate system for a regulating the flow of tidal waters between a first side and a second side of a main opening. The tidal gate system comprises a primary door member defining a regulated opening, a secondary door member sized and dimensioned to cover the reg...	08/24/2004
6719491	Fluid level control system A fluid level control system, particularly useful for controlling the level of water flowing in an open channel. The fluid level control system includes a gate having a flap portion interconnected to a lever portion. The flap portion is rotatable about a first pivot...	04/13/2004
6692187	Flood gate for door A flood gate is provided that includes a frame defining a fluid passageway, a door pivotally mounted in the frame for movement between a plurality of open positions to permit flow of fluid therethrough, and at least one latching mechanism for holding the ...	02/17/2004
6485231	Foundation flood gate with ventilation A flood gate is provided which includes a frame defining a fluid passageway therethrough, a door pivotally mounted in the frame for movement between a plurality of open positions to permit flow of fluid therethrough, and at least one latching mechanism fo...	11/26/2002
6171023	Water control gate A water control gate assembly comprises a self-actuating top-hung gate for controlling the flow of water in a waterway. The gate is pivotably mounted on a pair of piers located above an upstream of the gate for allowing the gate to pivot between a closed ...	01/09/2001
5678956	Navigational bypass, gate and pump device for use in water A pump device includes a motor, a pump body having a first body portion and a second body portion, a shaft connected to the motor and extending into the pump body and an impeller mounted on the shaft between the first and second body portions. A four valv...	10/21/1997
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
5516230	Gate for controlling upstream water level A self-actuating water control gate comprised of a stepped radial gate face 14 mounted on hinge arms 19 extending downstream to a pivot shaft 12 and to a counterweight 11 and support system. The gate face 10 includes a hydraulic thrust surface 15, and rad...	05/14/1996
5222834	Collapsible safety prop for waterway dams A collapsible safety prop for supporting a waterway dam gate comprising first and second links, each of which has a longitudinal axis and an inner and outer end. The inner ends of the links are provided with a lateral member extending laterally from the l...	06/29/1993
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
5178490	Wicket dam lifting module In one embodiment, the invention is directed to a hydraulic lifting module hich is removable as a unit from a wicket dam. A hydraulic cylinder is pivotably mounted about an axis in the frame and extends outwardly of an apertured cover between extreme posit...	01/12/1993
4830051	Rotary filling and emptying valve A rotary valve assembly is disclosed for regulating the flow through two ts to control the filling and emptying of a lock. The valve assembly includes a plurality of planar elements, rotatable about a vertical axis within a cylindrical housing, and dispo...	05/16/1989
4735525	Irrigation channel gates An irrigation channel gate uses flexible members which once released use the power of water flow to open and shut the gate. When flow in the channel is desired both an upstream gate and downstream gate are open. To stop flow the upstream gate is released....	04/05/1988
4606672	Constant upstream level gate An upstream canal flow control device comprising a gate depending down into the flowing stream from a pivotal axis transverse to the stream and an arm extending downstream from the axis and gate containing a ballast to force the gate against stream flow, ...	08/19/1986
4576512	Rotary sluice gate A sluice gate is provided in the form of a vane wheel on a horizontal shaft mounted transversally across the sluice in which it is installed, said vanes being distributed about the shaft and being partially immersible for the purpose of gate operation, sa...	03/18/1986
4349296	Irrigation ditch gate A gate for an irrigation ditch includes a rectangular frame, in which a pair of gates are pivotally mounted on shafts for rotation around vertical axes at the sides of the frame; helical springs connected to the top ends of the shafts and to the frame for...	09/14/1982

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Class 405/99 - Swinging