Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 7578397 | Device for the treatment of fluids A device is provided for fluid treatment, in particular for waste water treatment. The fluid is led along a surface (3) coated with biological material. A wiper element (5) is provided, which brushes the surface (3) not as a whole, but in paths.... | 08/25/2009 |
| 7404904 | Method and apparatus to clean particulate matter from a toxic fluid There is a method of capturing, removing or collecting the particulate matter from a fluid containing a toxic liquid reaction and particulate matter produced from the reaction. The method includes partly or completely disposing a screen into the toxic fluid. Mixing ... | 07/29/2008 |
| 7395935 | Filtering device A filter device is provided with a filter tank, a filter drum disposed in the filter tank, and a drive mechanism which rotates the filter drum. The filter element is composed of a porous plate that is formed with a large number of circulation holes. The porous plate... | 07/08/2008 |
| 7381335 | Method and arrangement for continuous filtering of particles out of a liquid Method and arrangement for continuous filtering of particles out of a contaminated liquid by means of a number of separate filtering units (14) in order continuously to feed purified liquid to a consumer. Each filtering unit (14) comprises a rotatable,... | 06/03/2008 |
| 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 (608). A first portion (801) of the screen ... | 04/29/2008 |
| 7364662 | Scraper adjustment mechanism and method A scraper adjustment mechanism and method for a filter that permits an operator to adjust the distance between the scraper and a filter surface without the need to have access to the filter/scraper interface, or fasteners within the filter. ... | 04/29/2008 |
| 7356236 | Field-use apparatus for inspecting and cleaning fiber optic connectors A portable apparatus for inspecting and cleaning fiber optic connectors which comprises a housing, an adapting tip receptacle on a top side of the housing, an optical module embedded in the housing, a focusing knob connected to the optical module, an LCD screen on a... | 04/08/2008 |
| 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 is accomplished by using a fixed brush on the exterior surface of the... | 03/25/2008 |
| 7311846 | Apparatus and method for separating ferrous and non-ferrous metal particles suspended in a liquid A method and apparatus for separating ferrous metal particles from non-ferrous metal particles suspended in a liquid, such as a coolant from a machining operation, in which mixed particle containing liquid is discharged across a horizontal, non-magnetic separating s... | 12/25/2007 |
| 7240393 | Automatic clean device An automatic clean device includes a base body, a transmission element, a cleaning element and an elastic member. Wherein the transmission element and the cleaning element are disposed on the base body, the elastic member has an end connected to the cleaning element... | 07/10/2007 |
| 7124895 | Device for continuous filtration of material blends A device for the continuous filtration of material blends, in particular for separating impurities from plastic melts. A housing has a hollow cylindrical filter disposed inside. An inside chamber is disposed inside the filter. An annular chamber is defined by the ou... | 10/24/2006 |
| 7097046 | Automatically cleaning filter assembly for a liquid-carrying loop A filter assembly for an aquarium has a self-cleaning filter. A fine mesh filter screen is disposed between an inlet and an outlet for filtering solid matter from the water that is pumped from the aquarium, through the filter, and back to the aquarium. When the filt... | 08/29/2006 |
| 7083735 | High debris content strainer A high debris content strainer that utilizes a cylindrically-shaped screen having four removal assemblies positioned evenly around the screen periphery. Each removal assembly includes a backwash spray bar on the downstream side of the screen and a scraper/brush and ... | 08/01/2006 |
| 7051962 | Manure separator A novel separator housed within a shell for the separations of solid and liquid components from a slurry. The separator has two stages, a first static screen and rotating brush assembly section and a second stage, with a screen and a roller press and brush assembly.... | 05/30/2006 |
| 7037437 | Dual filter system for filtering of injector fluids A filtering system used on a meat injection machine that injects pickling into meat products. The filter consists of a tank and a first and second rotary filter. The first rotary filter uses a wedge wire wound cylinder and augers having flutes that rotate to catch a... | 05/02/2006 |
| 7005067 | Disc-type filtration apparatus including discharge collector internal to pressure vessel and method filtration A positive pressure disc-type filtration apparatus including a collection trough internal to the cylindrical pressure vessel housing the filter discs. The collection trough is entirely disposed within the cylinder of the pressure vessel and configured and located to... | 02/28/2006 |
| 7001515 | Dual filter system for filtering of injector fluids A filtering system used on a meat injection machine that injects pickling into meat products. The filter consists of a tank and a first and second rotary filter. The first rotary filter uses a wedge wire wound cylinder and augers having flutes that rotate to catch a... | 02/21/2006 |
| 6991738 | Flow-through drum centrifuge A process includes coating a cylinder having an inner wall and a cylinder axis with a gel coating on the inner wall. Then a specimen mixture including solvent is made to flow through the cylinder while the cylinder is being continuously rotated. The specimen mixture... | 01/31/2006 |
| 6946078 | Electrochemical method and apparatus for producing and separating ferrate (VI) compounds The method for separating ferrate salts from a solution comprising providing contact between the solution of essentially of aqueous hydroxide and the ferrate salts and a surface having a magnetic attraction, magnetically securing the ferrate salts to the surface; an... | 09/20/2005 |
| 6896801 | Method and apparatus for magnetic separation of particulates from liquids The magnetic separator has a tank with a pair of dual conveyor chains, spaced apart, at opposite sides of the tank. A plurality of frames with spaced apart magnetic rods are suspended from the conveyor chains in a manner allowing the frames to swivel and always hang... | 05/24/2005 |
| 6890429 | Systems and methods for treating waste water Systems and methods for treating waste water containing biological wastes such as animal waste generated in livestock-raising operations, wherein the waste water is subjected to a series of operations to separate solids from the liquid phase of the waste water and t... | 05/10/2005 |
| 6808076 | Self-cleaning drum filter Self-cleaning drum filter comprising a pressure vessel (11) containing a cylindrical filtering drum (15) to whose outside curved surface a filtering mat (57) is juxtaposed, provided with means for removal of the cake collected on the outside of ... | 10/26/2004 |
| 6800197 | Continuously operable rotating drum pressure differential filter, method and systems A rotating drum pressure differential filter is provided whereby a layer of filter medium is continuously refreshed by a spray applicator device after the layer is utilized to filter components sample medium and a portion of the layer is subsequently scraped to remo... | 10/05/2004 |
| 6796435 | Solid-liquid separating apparatus A solid-liquid separating apparatus comprising a cylindrical strainer formed by circular ring members with gaps in between, a casing having the strainer therein, and scrapers disposed in the respective gaps between the circular ring members for removing solid matter... | 09/28/2004 |
| 6793809 | Pipe system for receiving and transporting lime sludge from a white liquor filter The pipe system is for receiving and transporting lime sludge from a filter medium in a continuously operating pressurized filter 1 in a causticizing process, where lime sludge is scraped off from the filter medium 2 and falls down into receiving chute... | 09/21/2004 |
| 6739458 | Device for dehydrating sludge The invention is relative to a device for dehydrating sludge such as occurs in sewage treatment plants in the form of dilute sludge. The receptacle for the sludge contains a sieve surface comprising openings for the passage of liquid. The sieve surface, for its part... | 05/25/2004 |
| 6669845 | Cyclone separator A cyclone separator includes a housing generally symmetric about its central longitudinal axis and an inlet for introduction of a fluid containing dispersed substances. An outlet for the cleaned fluid includes a tube through the bottom wall of the housing... | 12/30/2003 |
| 6655531 | Pressure filtration device An assembly for separating solid phase material from a slurry that comprises a pressurized filtration unit including a vessel and filter media. A slurry is fed to the filtration unit where it is separated into a solid phase material and a liquid phase mat... | 12/02/2003 |
| 6634508 | Screw press In a screw press, an outer tube (5), over which a screen (4) is tensioned, is divided into a freely rotatable condensing zone at the front half thereof, and a filtering and dewatering zone at the rear half thereof, a freely rotatable screw shaft (7) is pr... | 10/21/2003 |
| 6578714 | Mobile washer with fluid reclamation system A fluid reclamation system is provided for separating large debris particles from a polluted fluid. The reclamation system includes a separation device with an endless screen installed onto driven cylinders. A basin is mounted within the screen for collec... | 06/17/2003 |
| 6571959 | Coolant fluid cleaning method and apparatus An improved coolant cleaning method, system, and apparatus, are provided through the use of a filter disk assembly that defines and is rotatable about an axis of rotation of the disk, for removing particulate matter from a fluid flowing through the filter... | 06/03/2003 |
| 6564948 | Solid-liquid separating apparatus A solid-liquid separating apparatus including a strainer of a cylindrical shape. The strainer is comprised of circular ring members arranged side by side with gaps in between and disposed inside an accommodating section the device casing. The circular rin... | 05/20/2003 |
| 6536601 | Sludge silo The invention relates to a silo for sludge, especially sewage sludge, comprising a sludge-receiving part (12), a feeding part (16), said feeding part being located above the sludge-receiving part (12) and communicating with said sludge-receiving part (12)... | 03/25/2003 |
| 6500344 | Method and apparatus for filtering particles out of a liquid Method and arrangement for filtering particles out of a liquid, in which the liquid containing particles is supplied to a sedimentation tank (12), and the liquid is made, by means of hydrostatic liquid pressure prevailing in the tank, to flow through a fi... | 12/31/2002 |
| 6454102 | Belt press with adjustable inlet guide A belt press having a frame with a first belt and a second belt rotatably mounted on the frame. A curved inlet guide is movably carried on the frame. The inlet guide has a decreasing radius of curvature from an inlet end to an exit end. A positioning asse... | 09/24/2002 |
| 6451213 | Methods and apparatus for de-watering sludge An apparatus for de-watering sludge. A main shaft is rotated about a longitudinal axis at a first rate. A screw shaft coupled to the main shaft is rotated about the longitudinal axis at the first rate. Screw flighting coupled to the screw shaft is rotated... | 09/17/2002 |
| 6336561 | Disposable rotary drum filter A disposable rotary drum filter for processing batches of slurry. The device includes an outer housing in which is disposed a rotatable inner drum that is covered with a filter material. Preferably the device is fabricated from a plastic material that is ... | 01/08/2002 |
| 6332545 | Solid-liquid separating apparatus A solid-liquid separating apparatus comprising: a strainer which is in a cylindrical shape formed by a plurality of flat ring members with gaps in between; a casing which has an accommodating section for setting the strainer therein so that the accommodat... | 12/25/2001 |
| 6325927 | Magnetic separator apparatus A magnetic separator apparatus having a configuration of barium ceramic magnets impregnated into polypropylene bars interspersed onto a conveyor belt which passes through an aqueous solution containing unwanted magnetic particulate. A plurality of spaced-... | 12/04/2001 |
| 6311850 | Pressure screening apparatus for screening a paper stock suspension and screen clearer for such a screening apparatus A pressure screening apparatus for screening a stock suspension and screen clearer for a pressure screening apparatus. The pressure screening apparatus includes an inflow chamber, a suspension inflow connected to one end of the inflow chamber, a reject ou... | 11/06/2001 |
