2392results about "Artificial water canals" patented technology

A one transistor DRAM device includes: a substrate with an insulating layer, a first semiconductor layer provided on the insulating layer and including a first source region and a first region which are in contact with the insulating layer and a first floating body between the first source region and the first drain region, a first gate pattern to cover the first floating body, a first interlayer dielectric to cover the first gate pattern, a second semiconductor layer provided on the first interlayer dielectric and including a second source region and a second drain region which are in contact with the first interlayer dielectric and a second floating body between the second source region and the second drain region, and a second gate pattern to cover the second floating body.

A one transistor DRAM device includes: a substrate with an insulating layer, a first semiconductor layer provided on the insulating layer and including a first source region and a first region which are in contact with the insulating layer and a first floating body between the first source region and the first drain region, a first gate pattern to cover the first floating body, a first interlayer dielectric to cover the first gate pattern, a second semiconductor layer provided on the first interlayer dielectric and including a second source region and a second drain region which are in contact with the first interlayer dielectric and a second floating body between the second source region and the second drain region, and a second gate pattern to cover the second floating body.

A barrier is provided to preclude debris from passing into a rain gutter. The barrier includes a screen supported upon a channel. The channel includes a tab positionable between a roof and shingles upon the roof, and with a lip opposite the tab resting upon a portion of a gutter opposite the roof. The channel includes a recess between the tab and the lip. The recess includes a floor defining a lower plane of the channel. Ribs extend from the floor up to an upper plane of the channel in which the screen is supported. The ribs have sufficient height to remain in contact with the screen. Water is drawn through the screen and along the ribs down to the floor of the recess. Apertures in the floor allow the water to fall down through the channel and into the gutter, while debris is precluded from passing through the screen.

A separation tank having an inlet and an outlet and forming a low flow path and a high flow path, both conveying water from the inlet to the outlet. At normal, low flows, the water enters the inlet and passes through the low flow path having treatment chambers to remove, respectively, heavy materials and floatable materials. At high flows such as with heavy storm runoff, water exceeding a predetermined flow rate is conveyed from the low flow path into the high flow path where there are baffles to treat the water to remove both heavy materials and floatable materials. In optional embodiments, there is a filter / recharge chamber that may contain a filter and / or a groundwater conveyance system such that filtered or unfiltered water can be discharged from the low flow path through a groundwater conveyance system to groundwater, to the normal outlet, or both.

A barrier is provided to preclude debris from passing into a rain gutter. The barrier includes a screen supported upon a channel. The channel includes a tab positionable between a roof and shingles upon the roof, and with a lip opposite the tab resting upon a portion of a gutter opposite the roof. The channel includes a recess between the tab and the lip. The recess includes a floor defining a lower plane of the channel. Ribs extend from the floor up to an upper plane of the channel in which the screen is supported. The ribs have sufficient height to remain in contact with the screen. Water is drawn through the screen and along the ribs down to the floor of the recess. Apertures in the floor allow the water to fall down through the channel and into the gutter, while debris is precluded from passing through the screen.

The invention relates to a non-resistance pressure balance anti-resistance device of heat pump of ground water, and relative system, wherein the outer frame (1) of anti-resistance device has external water inlet (6) and external water outlet (7); the rotation filter cylinder (3) is inside the outer frame (1); the rotation filter cylinder (3) is divided into internal water inlet area (4-1) and internal water outlet area (4-2); the internal water inlet area (4-1) is connected to the internal water inlet area outlet (8) and the internal water outlet area (4-2) is connected to the internal water outlet area inlet (9). The invention has stable water pressure and stable flux, with small size and low cost.

A hydraulic-permeation type environmental water-runoff filtration-system applicable to street curb-inlet type drainage-chambers, which generally cooperatively interconnect with street and parking-lot drains. The BLUEBAY-BMP™ pollution-trap provides advantage of community-tailored filtering stages, the preferred embodiment seting forth a convenient user-friendly prefabricated-kit assembly employing a basic build-in-place containment-housing which can be readily adapted to the studied needs of a given community,—without incuring alteration of existing sewer-stormdrains. The uniquely adaptative capability of the containment-housing enables selectively structuring multi-stages of filtration, which progressions address a variety of ecosystem-contaminants, ranging from basic street-refuse and floatable objects, to coarse sediment, finer silt, and comparatively minute albeit environmentally-hazardous petrochemicals, heavy-metals, phosphates, and nitrates;—all of which are readily retrieved from the apparatus confines via periodic maintenance for transfer to appropriate collection handling facilities.

The invention relates to improved water control gates and related inflatable actuators, and associated sealing, manufacture and operation apparatus and methods. Advancements in technologies related to air fitting design, inflated bladder stress relief, inflatable bladder strength enhancement, water gate related slide friction mitigation, abutment and other impounded water seals, gate panel fabrication, traffic accommodating water impoundment structures, and water gate panel system operation efficiency, as well as nappe aeration, hinges, and bladder manufacture technology are some of the advancements disclosed herein.

Methods for forming semiconductor devices are provided. A semiconductor substrate is etched such that the semiconductor substrate defines a trench and a preliminary active pattern. The trench has a floor and a sidewall. An insulating layer is provided on the floor and the sidewall of the trench and a spacer is formed on the insulating layer such that the spacer is on the sidewall of the trench and on a portion of the floor of the trench. The insulating layer is removed on the floor of the trench and beneath the spacer such that a portion of the floor of the trench is at least partially exposed, the spacer is spaced apart from the floor of the trench and a portion of the preliminary active pattern is partially exposed. A portion of the exposed portion of the preliminary active pattern is partially removed to provide an active pattern that defines a recessed portion beneath the spacer. A buried insulating layer is formed in the recessed portion of the active pattern. Related devices are also provided.

A river course ecological treatment system essentially comprises a plurality of ecological biological water purification systems and a plurality of plastic retaining dams disposed along a river course, and at least one damp land ecological water purification system disposed beside the river course. The plastic retaining dams separate the river course into several retaining regions. The ecological biological water purification systems purify the water in the retaining regions by microorganism purification. Afterward, the water purified by the ecological biological water purification systems is introduced into rainwater channels of the at least one damp land ecological water purification system. After being purified by aquatic plants in the at least one damp land ecological water purification system, the water returns to the retaining regions the downstream portion of the river course. Therefore, a river improvement system capable of performing both step-by-step treatment and joint treatment is effectuated.

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 situations will be in a closed position such that items of trash, debris, litter, leaves and the like will be prevented from entering the basin, vault or system, yet in periods of heavy rainfall or other heavy water run-off situations will automatically open to allow free flow of water into the basis or vault to alleviate water accumulation in the adjacent street and other surrounding areas.

A pivotal gate system to be installed across the drain opening to a catch basin of a storm drain system and having a catch basin blocking gate that is adapted to rotate from a closed position extending completely across the drain opening at which to trap and prevent leaves, litter and other debris from entering the catch basin during dry periods and light rainfall to an open position removed from the drain opening at which to permit rainwater to enter the catch basin during periods of heavy rainfall. A water wheel is mounted for rotation within the catch basin. The water wheel is coupled to the catch basin blocking gate by way of a pulling cable. The water wheel rotates in response to impact forces caused by rainwater dropping downwardly on a plurality of scoops extending around the water wheel. A rotation of the water wheel generates a pulling force in the pulling cable to be applied to the catch basin blocking gate whereby to cause the blocking gate to move from the closed position to the open position.

A pivotal gate system to be installed across the drain opening to a catch basin of a storm drain system and having a catch basin blocking gate that is adapted to rotate from a closed position extending completely across the drain opening at which to trap and prevent leaves, litter and other debris from entering the catch basin during dry periods and light rainfall to an open position removed from the drain opening at which to permit rainwater to enter the catch basin during periods of heavy rainfall. A water wheel is mounted for rotation within the catch basin. The water wheel is coupled to the catch basin blocking gate by way of a pulling cable. The water wheel rotates in response to impact forces caused by rainwater dropping downwardly on a plurality of scoops extending around the water wheel. A rotation of the water wheel generates a pulling force in the pulling cable to be applied to the catch basin blocking gate whereby to cause the blocking gate to move from the closed position to the open position.

A system and related method for separating floating and nonfloating particulate and entrained, suspended, and / or dissolved contaminants from a fluid. The system includes a tank with a lower chamber spaced from an outlet or upper chamber by a confinement deck. The deck includes one or more sockets for receiving one or more filter units for fluid treatment. In addition, the lower chamber of the tank acts as a pretreatment sump to remove floating and nonfloating particulates, thereby reducing the load on the filter units. The filter units are configured for radial and / or upward flow of the fluid from the lower chamber. The filter units may include one or more filter media through which the fluid pass prior to exiting the tank. The filter units include a removable screening retainer for retaining the filter media and / or to screen relatively large contaminants. The filter unit may be removed for ease of tank maintenance and replacement of filter media. The system allows a method of contaminated fluid treatment under varying flow conditions by directing the fluid radially and / or upwardly through the retainer. Establishing both types of flow through the filter unit improves filtering and extends filter life without compromising desired flow through rates.

An apparatus for separating solid matter from a liquid stream, where the apparatus includes a generally cylindrical separation panel surrounding an interior space, which is oriented so as to have a substantially vertical longitudinal axis. The separation panel has a plurality of vertically and horizontally spaced openings which are adapted to remove solid material larger than a predetermined size from liquid passing through the separation panel. The apparatus also includes a chamber surrounding the separation panel and providing a chamber portion into which the liquid passes after passing through the separation panel. The apparatus may further include an inlet positioned below the separation panel, through which the liquid stream is delivered from a bottom opening of the separation panel to the interior space and which is arranged such that the liquid circulates about the axis so as to pass the separation panel, and an outlet extending from the chamber portion.

The invention relates to improved water control gates and related inflatable actuators, and associated sealing, manufacture and operation apparatus and methods. Advancements in technologies related to air fitting design, inflated bladder stress relief, inflatable bladder strength enhancement, water gate related slide friction mitigation, abutment and other impounded water seals, gate panel fabrication, traffic accommodating water impoundment structures, and water gate panel system operation efficiency, as well as nappe areation, hinges, and bladder manufacture technology are disclosed herein.

A chamber having an inlet for receiving polluted storm-water runoff and an outlet for the storm water to flow out. Within the chamber are one or more baffles forming gaps and having apertures. The gaps define a longer water flow route through the chamber and the apertures disperse the storm water within the chamber. This increases storm-water residence time which encourages settling of particulate matter such as sand and grit. In alternative embodiments, there are included a screen, a collection reservoir, and / or a pivotal filter for further dispersing, detaining, and / or filtering the storm water.

The invention relates to an integrated belowground vault with filter catch basin, that allows the runoff water to enter into a belowground two-part vault passing through a commercially available replaceable filter before being transferred out to the sewer, Rood control system or out through a French drain consisting of a cavity below the device that is filled with drain gravel. A layer of filter cloth can optionally be placed over the drain gravel. This device will be manufactured in variety of sizes and shapes and made from several different materials. The device has the unique ability of being capable of filtering low flow water runoff while allowing high volume to pass through with the added benefit of not retaining water that can become a mosquito breeding ground.

A silt filtration system is adapted for placement at an inlet of a storm water catch basin. The filtration system cooperates with a grate located adjacent a street curb at a mouth of the inlet to separate silt and debris entrained in storm water entering the catch basin. The filtration system includes a frame adapted for residing between the grate and the mouth of the inlet. The frame has elongated front, rear, and opposing side frame members. A filtration medium is supported within the frame, and is arranged to filter storm water entering the catch basin through the grate. A backsplash is attached to the rear frame member. The backsplash extends outwardly from the grate and upwardly into an open curb space between the grate and the curb, such that storm water splashing over the grate and into the curb space is deflected by the backsplash into the filtration medium within the frame.

Devices, apparatus, systems and methods for preventing backflow current problems which often have caused debris and litter to pass out of screen type baskets used in storm water treatment systems. A half size or full size pivoting panel at the input end of a basket screen system placed in a storm water treatment chamber can downwardly divert incoming storm water so as to prevent back flow currents from being formed. The pivoting panel can work well during high flow conditions. A half size or full size pylon located in the input end of the basket screen can split and divert incoming storm water to also prevent back flow currents from also being formed. The pylon can work well during low flow conditions. Also, both the half pivoting panel and the half pylon can both be used at the input end of the screen basket. Still furthermore a gap in the floor before the input end of the screen basket can allow for sediment coming to pass down and collect beneath the screen basket.

The present invention relates to a screen lock-unlock system for automatically locking and unlocking a screen that is within a fluid channel wherein the screen is rotatable relative to the channel from closed to open. The system includes an actuator comprising a flapper and a trigger, wherein the flapper is rotatably connectable to the back of the screen. The flapper is operably connected to the trigger for moving the trigger. And, the system is further summarized, according to one aspect, as follows. It includes a lock bar wherein the lock bar is rotatably attachable to a screen support structure, the lock bar being rotatable by movement of the trigger. The lock bar intercepts the rearward arc path of a blockable part (such as a flange extending laterally from the screen). The flapper is located and oriented with respect to the closed screen for at least part of the flapper to be rotatable in response to pressure from impact fluid. The trigger is located sufficiently close to the lock bar for rotation of the trigger to move the lock bar in a direction and amount needed for at least part of the lock bar to clear the blockable part, allowing the screen to open in response to pressure against the front of the screen. The screen is rotatable toward a closed position in response to the diminishment of the pressure against the front of the screen. And, the lock bar is biased in a counter-rotation direction (by part of the lock bar and / or another biasing device) to at least help hold the lock bar in and / or return it to a locked position.

A channel system for forming a trench is disclosed that includes a number of precast drainage channel sections and one or more alignment keys for aligning and interlocking adjacent channel sections. Each alignment key includes a base shaped for laterally bridging across a predetermined exterior portion of adjacent bottom walls of the adjacent channel sections. The alignment key also includes first and second opposed, inwardly facing jaw members shaped for longitudinally bridging across a predetermined exterior portion of adjacent first and second sidewalls, respectively, of the adjacent channel sections. Each pair of the jaw members can be carried by a respective base, and can be positioned in a lateral and longitudinal direction relative to the respective base to thereby substantially align and interlock the adjacent channel sections.