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Vehicular Impact Signaling Device

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Class 210/355 - Cleaner


Subclass of Class 210 - Liquid purification or separation
Definition: Apparatus in which the only element moved by the fluid is
No. of patents: 53
Last issue date: 09/09/2008


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NumberTitleIssue Date
7422689Membrane-cleaning method for membrane bioreactor process
A method of cleaning a membrane in a membrane separation activated-sludge process. By the method, deposits adherent to the surface of a membrane used in a membrane separation activated-sludge process can be effectively scratched off and the membrane filtration rate ...
09/09/2008
7396460Filter element
A filter element (8), especially for use in backwash filtering systems, includes a filtering element through which a contaminated fluid flows in at least one direction (24). An intercepting device (62) has at least one rod-shaped permanent magne...
07/08/2008
7077957Overflow screening device
A screening device which is particularly useful for separating solids from liquids when sewerage systems overflow. The device includes an inner apertured chamber and an internal brush arrangement for sweeping over the apertures to prevent clogging. A spray enables t...
07/18/2006
7001505Slurry monitoring system
A slurry monitoring system is provided. A filter encompasses a filter chamber containing a purge piston. During a monitor operation, the purge piston is retracted, and slurry enters the filter chamber through the filter, then passes into an outlet pipe, where a char...
02/21/2006
6959818Filter and filter cleaning apparatus and related methods
Apparatus and methods include an improved filter (203) and cleaning process. ...
11/01/2005
6926821Water treatment device with volumetric and time monitoring features
A totalization meter system for a water treatment device, the device having an inlet aperture and an outlet aperture, and a channel for channeling water between the inlet and outlet apertures. A flow reactive device is positioned in the channel and is exposed to the...
08/09/2005
6827864Filtering apparatus and method for washing its filtering elements
A filtering apparatus and method comprises parallel filtering elements backflushable with the pressure of the filtered flow. At least one washing organ connecting alternately to the different filtering elements, forms a discharge channel for the washing flow. A free...
12/07/2004
6488842Filtering device
A filtering device includes a container having an inlet for introducing liquid to be treated, an annular multi-layered prepacked screen assembly provided in the container and having an outlet for treated liquid. The screen assembly includes three or more ...
12/03/2002
6443312Self-cleaning filter
The self-cleaning filter is used for filtering incoming dirty liquid and distinctly recuperating clean liquid and waste liquid. The filter comprises a housing having an inner chamber defining first and second inner chamber portions, and an outer chamber; ...
09/03/2002
6318562Filtering centrifuge with cake heel removal mechanism
A filtering centrifuge includes a case, a perforated filter basket disposed for rotation in the case, filter media disposed along an inner surface of the filter basket, and a cake removal mechanism at least partially disposed in the case outside of the fi...
11/20/2001
6200467Filtering device with rotatable backwash tube
A filtering device includes a cylindrical screen 2 having a rotatable backwash tube 3 provided coaxially therein. The backwash tube includes a first end portion including an inlet 3c for introducing filtered liquid and a second end portion including an op...
03/13/2001
6155430Filter
The invention provides a clog-resistant filter for separating solids from liquids, of the type wherein the liquid is passed from a filter inlet through a circular-section hollow filter element the filter being provided with means for the discharge of coll...
12/05/2000
6059970Membrane separation device
A membrane separation device is disclosed having a cylindrical membrane support (4), which is sealed off between a top plate (26) and a bottom plate (28), whereon the cylindrical outer surface of the membranes support a membrane (6) is located, and which ...
05/09/2000
5996608Diaphragm valve with filter screen and movable wiper element
A diaphragm-type control valve for irrigation systems has an outer clam-shell housing that encloses a vertically reciprocable diaphragm assembly. A primary valve seat inside the housing is engaged and disengaged by a seal on the underside of the diaphragm...
12/07/1999
5919376Filtration apparatus and method
An improved filtration system comprises a vessel divided into a concentrate chamber and a permeate chamber by a permeable septum. An ultrasonic wave generator is mounted to the vessel and positioned to direct ultrasonic waves through both the permeate con...
07/06/1999
5888407Method of separating fluids using a continuous re-entrant lumen having wall conditioning shuttles and porous wall sections
Materials including suspended particles are brought together and then separated into two streams one of which only contains the particles, the output streams having different composition from inlet streams. Separation is effected in filtration modules whi...
03/30/1999
5830347Cleaning mechanism for a fluid filter
A filter assembly has a cylindrical filter element immersed in the fluid to be filtered, and which fluid normally flows radially inwards through the filter element and is thereby filtered. When the filter element is to be cleaned by backflushing, fluid fl...
11/03/1998
5814216Waste water contaminant segregating unit for sewer conduits
The screening apparatus of the invention has a main cylindrical chamber linking a waste water inlet pipe to a refuse pipe and to an overflow outlet pipe. The waste water inlet pipe conveys water from a city sewer duct or the like, and this water is destin...
09/29/1998
5714065Filter unit for fluids
A filter unit for fluids, the filter unit comprising a filter housing with at least one filter disposed therein, at least one fluid feed line, at least one purified fluid outlet line, and at least one unpurified fluid outlet line, each of which lines is p...
02/03/1998
5688402Self-cleaning strainer
A self-cleaning, self-propelled strainer designed for installation in boiling water reactor suppression pools. The strainer is designed to prevent strainer clogging and subsequent loss of the emergency core cooling system flow during a postulated design b...
11/18/1997
5676848Method of separating employing a continuous re-entrant lumen with wall conditioning elements
Materials including suspended particles are brought together and then separated into two streams one of which only contains the particles, the output streams having different composition from inlet streams. Separation is effected in filtration modules whi...
10/14/1997
5624549Apparatus for partial dewatering of raw sludge comprising reciprocating plunger presses
Apparatus for partial dewatering of raw sludge, includes at least two filter units each defining a filter chamber which receives raw sludge and has an outer wall surface formed as filter for discharge of filtrate from raw sludge. Accommodated within the f...
04/29/1997
5614093Discrete pore platelet filter manufactured by electropolishing
A micropore filter of discrete flow-through pores of highly controlled pore configuration and dimensions is formed by bonding platelets into a laminate, each platelet having been etched, preferably by a combination of electropolishing and photoetching tec...
03/25/1997
5547573Device for removing cake or residual layer in a centrifuge
The device comprises a first wide-mesh cloth or screen which bears against the calender of a basket, at least one tight supple tube connected to a source of gas under pressure which is against the first cloth or screen, a second cloth or screen identical ...
08/20/1996
5427680Processing apparatus with wall conditioning shuttle
A processing wall is made part of a boundary of a continuous re-entrant lumen, another part of which is a return section. A free, wall conditioning shuttle circulates around this lumen, clearing accumulated material from the processing wall and returning ...
06/27/1995
5425876Gravity screen filter with dynamic backwash
A self-cleaning gravity screen for removing particulate material from a liquid stream. The screen slopes, and beneath it a rotary wand sweeps against its lower side to keep the screen perforations open and assist movement of retained solids along the scre...
06/20/1995
5393424Mud dehydrating system
A mud dehydrating system is provided. The system includes a table, a centrifugal dehydrating cylinder, endless upper and lower filter cloths, compressing rollers, and a cleaning and washing unit in combination. The cleaning and washing unit has swingable ...
02/28/1995
5286376Filtering apparatus
A filter medium is provide in a tubular structure configured in the form of a closed loop. Filter maintenance structures mounted on a continuous string lying within the lumen of the tubular structure are continually driven over the surface of a filter med...
02/15/1994
5284581Processing apparatus with wall conditioning shuttles
A processing wall is made part of a boundary of a continuous reentrant lumen, and wall conditioning runners circulate around this lumen to dislodge accumulated material from the processing wall and thereby continually restore the wall to the condition req...
02/08/1994
5080788Water filter with fluid actuated cleaner
An apparatus for cleansing water including a fluid driven cleaner is disclosed herein. The apparatus includes a hollow casing having an upper open end and a central axis, a perforated tube disposed along said central axis inside the casing, the tube being...
01/14/1992
4902412Swimming pool water recirculation system
There is disclosed a water recirculation system for a swimming pool including assemblies installed in the drain openings in the skimmer and lower end of the pool for shredding leaves solely in response to the circulation of water through them....
02/20/1990
4839046Bio-reactor chamber
A bio-reactor for cell culture which provides for the introduction of fresh medium without excessive turbulent action. The fresh medium enters the bio-reactor through a filter with a backwash action which prevents the cells from settling on the filter. Th...
06/13/1989
4795570Two-stage batch filter apparatus and filtration process
An apparatus and process for removing liquid from a liquid-solid mixture by forcing the liquid-solid mixture under low pressure through a filter means attached to filter support doors to form a filter cake, supplying compressed air into an expandable spac...
01/03/1989
4714557Pressure filter cake-breaking method and apparatus
The present invention provides a liquid filtering apparatus wherein solids suspended in the liquid are accummlated to form a cake on the filter media as the liquid passes through the media. Upon the buildup of such solids, pressurization upon the liquid f...
12/22/1987
4624785Easily-cleanable filters
A filter including a plurality of filter discs each formed with a central opening and disposed in a stack within a filter housing with the side faces of adjacent discs contacting each other for filtering the fluid flowing through the housing from its inle...
11/25/1986
4603001Apparatus and method for filtering a fluid
This disclosure relates to a filtering apparatus which incorporates a flow deflector, to divert an incoming flow of the fluid to be filtered, which serves as a device to cause one or more multifaceted bead members to circulate throughout and to impinge up...
07/29/1986
4528097Symmetrical fluid filter apparatus with multifaceted beads
A filter apparatus for removing contaminants from a fluid comprises a cylindrical body and first and second caps coupled to first and second ends of the cylindrical body. Each of the caps has an aperture therein for the flow of fluid therethrough and firs...
07/09/1985
4377475Apparatus for sucking up and holding sludge
In the case of an apparatus for sucking up and holding sludge, use is made of a sludge tank which may be evacuated. The sludge tank has a sludge door and a water outlet able to be put into operation separately from the door. The water outlet is made up of...
03/22/1983
4347134Slurry separator having reaction nozzle driven rotory blades wiping a conical filter
A slurry separator utilizes the power inherent in the pressurized slurry from the slurry pump through a reaction nozzle to drive a rotor, with the slurry distributed through the nozzle being distributed over the surface of a conical grid. The rotor struct...
08/31/1982
4308142Back-flush filtering apparatus, particularly for a house water supply system
A backwashable filtering device comprising a housing, a main filter in the housing, an inlet for receiving liquid into the housing and an outlet for discharging liquid from the housing. A rotatably mounted spraying member is disposed in the main filter wh...
12/29/1981
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