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| Number | Title | Issue Date |
| 8104620 | Magnetic sweeper A magnetic sweeper configured to collect magnetic metal debris, such as nails, screws, sheet metal fragments, staples, rivets and the like from a surface, and to permit easy removal of the collected debris from the sweeper is disclosed. The sweeper comprises a non-m... | 01/31/2012 |
| 7918345 | Electromagnetic separator and separation method of ferromagnetic materials Electromagnetic separator comprising two or more solenoids (6, 7) arranged inside a rotatable drum (1) and connected to a continuous current power supply (8) for generating a magnetic field suitable for separating ferromagnetic parts, wherein sa... | 04/05/2011 |
| 7806272 | Magnetic sweeper A magnetic sweeper includes an upper body portion and a base assembly disposed below the upper body portion and a frame. The body defines a cavity with an open bottom portion. The base assembly includes a non-magnetizable frame and a magnetizable plate supported by ... | 10/05/2010 |
| 7631767 | Moulding composition In a food processing line, the equipment which is likely to fragment on breakage contains magnetically susceptible particles which are separated from the food by a magnetic separation stage. When the equipment is a starch carrying tray, the molding mix contains 5-50... | 12/15/2009 |
| 7437794 | Magnetic scraper A magnetic scraper for manually cleaning contaminated surfaces, such as commercial kitchen exhaust duct systems, is disclosed. Two sharpened blades are positioned opposite one another secured to a body portion. An elongated, extendable arm pivotally connected to the... | 10/21/2008 |
| 7341155 | Systems and methods for processing waste materials Systems and methods for disposing of waste material are disclosed, in which a cross-belt magnet configuration is employed to separate ferromagnetic substances from waste material. For some embodiments, the system includes a first conveyor belt, a magnet, and a secon... | 03/11/2008 |
| 7331470 | Magnetic rake with release mechanism A magnetic raking device that agitates a ground surface and uses magnetic attraction for collecting ferro-metallic debris, such as nails and screws, at construction jobsites and other locations, includes a release mechanism that temporarily eliminates magnetic attra... | 02/19/2008 |
| 7318528 | Precious metal recovery A pulse of over six kilovolts with a duration of 200 nanoseconds causes an explosion that fragments a mineral deposit with metals embedded therein. The fragmentation separates the metals from the mineral. A conditioning electromagnet temporarily magnetizes the metal... | 01/15/2008 |
| 7310929 | Windrow merging apparatus A windrow merger has a frame supporting first, second and third pickup assemblies, with the two outside pickup assemblies foldable between an extended use position and a retracted travel position. Each of the pickup assemblies includes a reversible conveyor providin... | 12/25/2007 |
| 7296683 | Ferrous metal detector with alarm An electronic ferrous metal detector with an alarm includes a non-ferrous core positioned circumferentially about an opening in an object, such as a hole in a garbage can lid. A pick-up coil having a sufficient number of windings is wound about the non-ferrous core ... | 11/20/2007 |
| 7244089 | Device for removing metallic objects from a railway bed A machine which travels on railroad rails includes a conveyor belt which transports metallic objects from a railway bed into a hopper. The conveyor belt revolves around a pair of rollers mounted on the framework of a conveyor belt assembly. One roller magnetically p... | 07/17/2007 |
| 7207205 | Magnetic dent removal device, method and kit A magnetic dent removal device (18), method and kit comprises a handle assembly (20) used with a burnishing element (24). The handle assembly (20) includes a handle (26), a containment cup (30) and a magnet (22) recei... | 04/24/2007 |
| 7182205 | Magnet sweep A device for attracting metal particles which comprises a longitudinal member having a first and second end and a first magnet connected to the first end. The first magnet has a surface. The device further includes a housing connected to the second end which is subs... | 02/27/2007 |
| 7124617 | Magnetic dent removal device, method and kit A magnetic dent removal device (18), method and kit comprises a handle assembly (20) used with a burnishing element (24). The handle assembly (20) includes a handle (26), a containment cup (30) and a magnet (22) recei... | 10/24/2006 |
| 7095305 | Retractable magnetic sweeper A retractable magnetic sweeper includes a shell member, a retractable tubular member, a moving member, a connecting bar member, and a magnetic member. The shell member defines a receiving space. The retractable tubular member includes a lower tubular section connect... | 08/22/2006 |
| 7004617 | Mixer with dissimilar augers A vertical mixer is disclosed for mixing feed materials and the like. The apparatus includes at least two augers which rotate around two respective vertical axes. The augers are dissimilar relative to each other, providing an improved mixing performance. The dissimi... | 02/28/2006 |
| 6994219 | Method for magnetic/ferrofluid separation of particle fractions A particulate feed comprising a first particle type and a second particle type is separated by providing a separation apparatus having a separation vessel having a top and a bottom, and wherein the separation vessel includes inwardly sloping side walls. A magnet str... | 02/07/2006 |
| 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 |
| 6722503 | Integrally formed separator/screen feedbox assembly In a coal preparation plant which receives a raw coal feed and separates the raw coal feed into a clean coal feed and a refuse feed, an apparatus is provided for receiving and mixing the raw coal feed with water. The inventive apparatus includes a deslime screen ass... | 04/20/2004 |
| 6669024 | Sweeper magnet A sweeper magnet for attracting magnetic debris from a pick-up surface includes a base assembly and a magnet having a first surface supported by the base assembly and a second surface. A cover extends over the magnet second surface and includes a projecti... | 12/30/2003 |
| 6640284 | System and method of dynamic online session caching The present invention provides a system that includes a plurality of cache engines coupled to a computer network such as the Internet, and a cache memory associated with each of the plurality of cache engines. The cache memory is allocated to store inform... | 10/28/2003 |
| 6592161 | Magnetic sweeper with tool receiving space A magnetic sweeper includes an elongated mounting frame, a pair of rotating wheels, and a universal caster. The frame includes a barrier wall disposed behind a guide wall so as to define an axial hole therebetween, and a bottom plate. At least one magneti... | 07/15/2003 |
| 6562239 | Magnetic separation device A magnetic biological particle separation device comprising positioning a magnetic arrangement comprising a first magnet to generate a first north-south magnetic field in a plane co-planer with a horizontal cross-sectional plane of a container, positionin... | 05/13/2003 |
| 6547649 | System and method for recovering metals from scrap generated during dental and jewelry manufacturing A method for recovering noble metal from scrap generated during the manufacture of noble metal units. The method includes providing a cast metal unit such as a dental crown or a jewelry item. The unit is made of some noble metal. The surface of the unit i... | 04/15/2003 |
| 6537385 | Rare earth magnet and method for manufacturing the same The method for manufacturing alloy powder for R--Fe--B type rare earth magnets of the present invention includes a first pulverization step of coarsely pulverizing a material alloy for rare earth magnets and a second pulverization step of finely pulverizi... | 03/25/2003 |
| 6482328 | Method and apparatus for magnetically separating selected particles, particularly biological cells A method and apparatus for magnetically separating target particles of a selected type from a sample in order to produce a concentration of the target particles in the sample, or a depletion of the sample with respect to the target particles, by producing... | 11/19/2002 |
| 6464083 | Method and apparatus for selectively capturing ferrous debris from a floor An apparatus for collecting, transporting and releasing ferrous debris from a floor is disclosed. The apparatus includes a magnet movable between a lowered and a raised position to provide a sufficient magnetic field intensity to capture debris from the f... | 10/15/2002 |
| 6402212 | Magnetic sweeper A magnetic sweeper includes a mounting frame with left and right side walls, a rotating shaft with ends journalled in the left and right side walls, and a cylindrical body rotated with and surrounding the rotating shaft. A plurality of permanent magnets a... | 06/11/2002 |
| 6341403 | Two-way guard for vacuum cleaner The invention provides a two-way protecting guard for a vacuum cleaner bumper that picks up magnetic metal objects in rugs or carpets prior to such objects entering the vacuum cleaner housing and that prevents damage to furniture and other objects from co... | 01/29/2002 |
| 6318558 | Method and device for separating different electrically conductive particles The invention relates for separating different electrically conductive particles, especially of waste materials, by means of an eddy-current separation, whereby the supplied particles to be separated are cooled. The invention also relates to an eddy-curre... | 11/20/2001 |
| 6253924 | Magnetic separator apparatus and methods regarding same A magnetic separator apparatus for use in separating magnetic material from a mixture of at least magnetic material and a liquid includes an endless belt defining a channel. A portion of the endless belt is movable up an incline relative to horizontal thr... | 07/03/2001 |
| 6158792 | Magnetic sweeper device with structurally integrating bracket A magnetic sweeper device is constructed with a structural integrating bracket which provides structural interconnection between one or more magnets, conveyance devices such as wheels, and a manipulation device such as a handle. The bracket includes a mai... | 12/12/2000 |
| 6142310 | Magnetic sweeper The magnetic sweeper of this invention includes a laterally elongated hollow body of non-magnetic material having an open top and containing a pair of laterally spaced permanent magnets. The elongated side walls of the body have outwardly extending flange... | 11/07/2000 |
| 6117398 | System for releasing and isolating nucleic acids An instrument that can hold one or more sample processsing vessels, maintain the sample processing vessels at a constant temperature, shake the sample processing vessels and separate magnetic particles by means of magnetic force. This system greatly simpl... | 09/12/2000 |
| 6113169 | Magnetic debris pickup device A magnetic device for picking up ferrous metal debris, such as nails, screws, sheet metal fragments, staples, rivets, and other ferrous metal objects from an environmental surface such as the ground or a floor by rolling along the surface, consists of: a ... | 09/05/2000 |
| 6095337 | System and method for sorting electrically conductive particles A system and method for separating an electrically conductive particulate material, such as gold, from other materials. A ferromagnetic core is formed in a torroidal-like shape and is provide with a gap. A coil is wound around the core and an alternating ... | 08/01/2000 |
| 5993740 | Immunoassay method and analyzer using magnetic particles Magnetic particles are used as the solid phase to carry out immunoassay. In a reaction vessel, the magnetic particles are mixed with a sample containing TSH as an analyte and a labeled antibody. A chemiluminescent label material is bound onto the magnetic... | 11/30/1999 |
| 5979957 | Rolling magnetic rake for collecting nails and other debris from a surface A plurality of essentially round wheel shaped magnets on an axle transverse to a handle. The magnets are polarized axially and positioned with like poles adjacent. The roller rake is rolled over a surface and sweeps a swathe clean of magnetically attracta... | 11/09/1999 |
| 5931309 | Magnetic separator with inclined conveyance A device for separating metallic and non-metallic materials via an inclined conveyor belt and vibrating plate feed. Feed material is dropped from the feed plate onto the inclined portion of the conveyor. Magnetic material adheres to the inclined belt by a... | 08/03/1999 |
| 5927508 | Method and apparatus for recovering fine gold from low grade ores Recovery of gold fines from gold-bearing ores is achieved by flowing an aqueous slurry of particulate gold-bearing ore over a sluice supporting a mat of magnetically susceptible particulate material, which preferably includes the magnetite content of the ... | 07/27/1999 |
