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7575674 |
Rotary bar screen device
Provided is a rotary bar screen device. The device includes a driving motor, an up/down pair of driving and driven sprockets, left and right transfer chains, a plurality of screen buckets, a...
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7547389 |
Bottom seal
A bottom seal, at the lower end of a step screen, is adapted to convey solid particles and other objects positioned in flowing water. The step screen has a grating including alternately fixed and...
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7416658 |
Elliptical motion drive device for a step screen
Disclosed herein is an elliptical motion drive device for use in a step screen. The elliptical motion drive device comprises first and second eccentric wheels coupled to a single drive shaft to be...
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7364652 |
Screening apparatus
Screening apparatus ( 101,901 ) for use at an overflow weir ( 301, 902 ) in a sewerage system. The apparatus comprises a continuous moving screen band ( 201, 902 ) and a band cleaning mechanism (...
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7347933 |
Self-cleaning intake screen
A self-cleaning screen that automatically cleans both the inside and outside surfaces of the cylindrical screen using only the rotation of the cylindrical screen itself. This self-cleaning ability...
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7344637 |
Apparatus for removing fine material from a liquid
An apparatus serves for removing fine material to be screened from waste water. The apparatus includes a sieve grate ( 6 ) and a detaching device ( 16 ). The sieve grate ( 6 ) is cylindrical, and...
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7326335 |
Apparatus for removing solids from water in canal
There is disclosed an apparatus for removing solids from water in a canal during or immediately after a rainstorm. The apparatus includes a plurality of filters and a carrier. The filters filter...
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7326336 |
Water intake rotary screen
The water intake rotary screen comprises a mobile filter designed as an endless loop formed of a succession of flexible and articulated filter panels. It is associated with a suction system adapted...
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7300572 |
Water screen
A traveling water screen comprising an endless foraminous belt with flights. The foraminous belt forms a water screen extending from a lower end in a flowing stream to an upper end above the...
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7267763 |
Water intake screen with circular filter panel
A water intake screen with a filter panel includes a frame adapted to be connected to the water intake and a circular filter panel disposed transversely in an opening of the frame, to which it is...
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7160443 |
Apparatus for removing material from a liquid flowing through a channel
An apparatus for removing material from a liquid flowing through a channel includes a sieve grate, a screw conveyor and a detaching device. The sieve grate has an inflow side, an inner side and an...
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6942789 |
Filter screen assembly
A waste water filter screen assembly that has a substantially open foot section to promote more efficient flow through. The rotating grid is generally free hanging. The present invention further...
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6913690 |
Debris removal system
An automatic debris removal system for screening an effluent stream. The automatic debris removal system comprises a support frame positioned proximate the effluent stream, a bucket positionably...
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6754123 |
Adjustable current mode differential amplifier for multiple bias point sensing of MRAM having diode isolation
A sensing circuit for determining the logic state of each memory cell in a resistive memory array, wherein each memory cell in the resistive memory array has current control isolation and the logic...
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6733663 |
Waste water treatment washer compactor system
A wastewater treatment washer compactor system having in-channel motorized screen for installation in an influent channel and removal of screenings from the influent stream; at least one washer and...
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6719898 |
Sieving device
The invention relates to a sieving device for mechanically separating and extracting solid bodies or solid matter from a liquid current, in particular, to sieve gratings for process or effluent...
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6669854 |
Stepping screen assembly hydraulically driven
A stepping screen assembly bottom portion is located in a liquid waste stream containing solids. The assembly contains a grid structure containing dynamic and static bars horizontally spaced apart....
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6500331 |
Machine for micro-filtering solid particles suspended in a liquid stream
The invention relates to a machine for micro-filtering solid particles suspended in a liquid stream comprising: a couple of coaxial filtering discs each rotating round its own axis arranged...
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6426009 |
Travelling screen with travel pause for improved cleaning of screen and method of implementing same
A travelling screen and screening method minimize reintroducing debris to liquid downstream of a screen while achieving the relatively high efficiency of fixed bar screens. A filter surface is...
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6312590 |
Mechanically cleanable screen
A mechanically cleanable screen for separating liquid from chips and pulp without the screen getting blocked, particularly in the process area where cooking and circulation liquids are removed from...
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6294085 |
Sewage screening apparatus
A sewage screening apparatus which receives, in use, a sewage flow comprising a screen arrangement having a continuous belt screen for capturing screenings contained within the sewage flow to...
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6280612 |
Revolving screening rack, supporting frame for a revolving screening rack and a control shackle of a screening element
The invention relates to a revolving screening rack with a driveable endless screening belt formed by a plurality of screening elements which in each case have a plurality of elongate plates...
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6270684 |
High performance combined sewage overflow and water intake screen
A screening device useful in water and waste water treatment plants separates fluid flow into two streams. The screening device is perforated so that solids having a predetermined cross-section...
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6251268 |
Filtering apparatus
The invention relates to a filtering apparatus for removing matter and bodies accompanying a liquid flow. The filtering apparatus includes a number of individual filter elements disposed to be...
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6231757 |
Apparatus for collecting and removing solid particles from a flowing fluid
An apparatus for collecting and removing solid particles from a flowing fluid (5) includes a grid unit (6) including a plurality of stationary bars (1) being arranged to form a stationary bar unit...
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5993651 |
Water influent particle removing apparatus
An endless screen lifts fecal matter and sewer influent debris from an influent channel. The endless screen is powered by an externally positioned air cylinder driving a pawl and rachet to move the...
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5800701 |
Apparatus, components and a method for the filtering of liquid
An endless filter chain for filtering a liquid, such as sewage, which flows along a drainage duct is provided. The filter chain comprises strainer elements and connecting links interconnected to...
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5676829 |
Screen
A screen assembly is described which comprises a flow channel along which sewage is intended to flow, in use, a continuous flexible belt entrained around roller or wheel means and projecting into...
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5641398 |
Device for removing screened material from a liquid flowing in a flume
A device for removing floating and suspended debris from a liquid flow passed through a liquid flow flume (3) is disclosed, the device including a separator (9) positioned within the liquid flow...
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5618415 |
Method for removing debris from a free flowing water system
A method for removing debris from a free flowing water system (100) using an improved filter apparatus (10) is described. The apparatus includes a rail (12) which is mounted adjacent the water...
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5593597 |
Filtration system comprising sieving trough, helix and additional sieving apparatus
The invention relates to an apparatus for removing solid components from a fluid in a trough (1) having a transport device (3) in the form of a transport trough (4) and a rotationally driven...
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5565093 |
Conveyor-band filter apparatus
Conveyor-band filter apparatuses, so-called Paternoster filter rakes, which serve primarily for the mechanical cleansing of flowing sewage, are to be made capable by the invention of removing not...
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5456826 |
Separating grid
A separating grid (1) for collection and removal of solid particles and objects (4) from running water (2) in a channel (2). The separating grid (1) comprises a stand (9) including a separating...
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5387336 |
Screening rake
The invention concerns a screening rake for removing solids from flowing sewage, the rake having a driven screening belt which can be immersed in the sewage and which has two lateral chains. A...
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5372713 |
Long sand trap for separating and removing sand from water from inflow channels
A long sand trap for separating and removing sand from inflow channels, particularly of sewage treatment plants is provided with a settling channel (1) having in particular a trapezoidal...
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5296136 |
Apparatus for separating liquids and solids comprising screens and augers
Apparatus for separating solids and liquids has an initial separator for removing coarse solid material from a mixture of solids and liquids, a first screen for separating further solid material...
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5269945 |
Method and a device for the separation of bodies from a liquid
A method and apparatus for separating contaminating substances from a liquid containing contaminating substances in which the liquid is passed through a filter of resilient, porous filter material....
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5118414 |
Rotary screening device
A rotary screening device for separating unwanted solid matter such as sewage, weeds, tar globules and fish from water which is to be used for special purposes such as water cooling or other plant...
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5116490 |
Rotary screen apparatus for use with cooling towers
An improved rotary screen for high volume water screening includes a rectangular truss having a forward bearing surface supporting a rotary screen element supported by a central rotating hub and a...
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5110461 |
Apparatus for separating liquids and solids
Apparatus for separating liquids and solids, comprising, separator screen means for receiving and separating the solids and liquids, conveyor means for feeding the separated solids upwardly from...
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5102536 |
Self-cleaning water filter screen apparatus
An apparatus is described which separates small solids from process waste water. A continuously rotating elongated drum screen having a large diameter interior flow channel removes the solids. The...
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5059313 |
Conveyor rake sieve with hook-like plates
A separating apparatus, in particular for clarification plants, comprises a revolving strainer rake or rake sieve having a plurality of series connected rake sieve sections which each consist of...
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5019253 |
Apparatus for collecting and discharging waste material
Apparatus for collecting and discharging waste material comprises peripheral rows of teeth arranged on rotatable cylindrical shafts. The teeth on each shaft intercalate so that an entrapment zone...
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4956101 |
Liquid filtration device and method using wave motion
A method and an apparatus for separating bodies from a liquid in which the liquid is passed through a filter and the bodies to be separated are accumulated on the filter. The filter forms an upper...
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4853116 |
Device for collecting and discharging solid matter
A device for collecting and discharging solid matter from a liquid-solid mixture in a waste collecting stream having a grid structure including alternate stationary and displaceable bars, the...
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4836919 |
Device for removing waste material screened or filtered out of liquid flowing throgh a channel
A device for removing waste material screened or filtered out of liquid flowing through a channel (1) has a basket-type interceptor (6) that is slanted and cylindrical and that rotates subject to...
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4814076 |
Self-cleaning filter for insertion into a pressurized pipe
A filter that can be inserted into a pressurized pipe comprises a filter body designed to be connected to each of two consecutive section of the pipe. Inside the filter body is a generally circular...
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4812231 |
Self cleaning rotating fine polishing filter screen apparatus
An apparatus is described which separates small solids from process waste water. A continuously rotating elongated drum screen in a three foot diameter flow channel removes the solids. The solids...
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4709804 |
Self-cleaning trash rack
A self-cleaning trash rack for removing debris from a stream of water has an upright frame positioned in the path of trash carried by the stream and a plurality of endless, flexible chains carrying...
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4676893 |
Apparatus for the recovery of living organisms on the rotary filters of water pumping stations
Apparatus for the release and recovery of living organisms collected or trapped on the rotary filters of water pumping stations. The apparatus comprises: on the inside of the filters, a system...
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