...that on Dec. 15, 1836, the Patent Office was completely destroyed by fire? Lost were some 7,000 models, 9,000 drawings, and 230 books plus all records of patent applications and grants.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7367457 | Device for the separation of non-magnetizable metals and ferrous components from a solid mixture and method for operating such device In an arrangement which including a motor-driven system for the separation of non-magnetisable metals, vibrations and resonances which generally are present in such arrangement, are eliminated. This is accomplished by utilizing a drum mounted on and rotating about a... | 05/06/2008 |
| 7360657 | Continuous magnetic separator and process A continuous magnetic separator and process for separating a slurry comprising magnetic particles into a clarified stream and a thickened stream. The separator has a container with a slurry inlet, an overflow outlet for the discharge of the clarified slurry stream, ... | 04/22/2008 |
| 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 |
| 7210581 | Apparatus for magnetically separating integrated circuit devices A method and apparatus of separating integrated circuit (IC) devices according to magnetic properties of the devices is disclosed. A plurality of IC devices are subjected to a magnetic field. The IC devices containing only nonferrous material are not responsive to t... | 05/01/2007 |
| 7090080 | Free wire reclaimer system for scrap tire processors An apparatus for providing free wire reclamation from a granulated stream of mixed metallic and nonmetallic material comprises a vibratory conveyor having a trough assembly mounted on a suspension system and coupled to a motor for causing the suspension system to vi... | 08/15/2006 |
| 7051880 | Air classifier to separate solids while eliminating emissions An air classifier to separate solids by air classification while eliminating emissions. The air classifier includes an in-feed delivery mechanism, such as a continuous conveyer belt in order to deliver solids to an input chamber. A hanging curtain is movable in resp... | 05/30/2006 |
| 6951141 | Measuring method and measuring apparatus A method of measuring material in which the material is conveyed by a conveying unit and dropped from a discharge portion of the conveying unit to be supplied into a measuring unit arranged under the discharge portion, and is measured by the measuring unit, includes... | 10/04/2005 |
| 6817474 | Color sorting apparatus for granular objects with function to sorting out foreign magnetic metal matters A magnetic metal removing device for color sorting apparatus includes a hollow feeding roll. Within a hollow portion of the feeding roll, a magnet is arranged such that it closely opposes to a part of an inner surface of the hollow feeding roll to form a magnetic fo... | 11/16/2004 |
| 6634504 | Method for magnetically separating integrated circuit devices A method and apparatus of separating integrated circuit (IC) devices according to magnetic properties of the devices is disclosed. A plurality of IC devices are subjected to a magnetic field. The IC devices containing only nonferrous material are not resp... | 10/21/2003 |
| 6626297 | Magnetic separator device for disposal unit A garbage disposal protection device prevents the entry of ferro-magnetic objects into the disposal unit while maintaining an unobstructed path for items intended for the disposal to freely pass through the entry of the disposal. The device is an annular ... | 09/30/2003 |
| 6572778 | Method for separating magnetized substances from a solution The method includes placing a vessel containing a solution having magnetized substances into a magnetic device. The solution is then incubated in the device for a period of time sufficient to allow the magnetized substances to migrate radially toward the ... | 06/03/2003 |
| 6467629 | Apparatus and method for separating particles with a rotating magnetic system An apparatus for separating mixed particles divides the material to be sorted into constituent fractions comprising non-ferromagnetic particles of different electrical conductance. The particles are fed onto a conveyor, e.g. a conveyor belt that linearly ... | 10/22/2002 |
| 6412643 | Ferrous particle magnetic removal and collection apparatus An apparatus and method for removing ferrite particles from a material flow introduced into the apparatus. The apparatus has a housing supporting a magnetized roller with which the material flow is brought into contact with to extract the ferrite particle... | 07/02/2002 |
| 6364117 | Method of separating iron sheets from wasted iron products This invention pertains to a method of separating iron sheets from washed iron products. The method includes the following steps: crushing wasted iron products into pieces; transporting the crushed pieces on a conveyer; and separating iron sheet pieces fr... | 04/02/2002 |
| 6352160 | System and method for capturing ferrous articles from food waste systems A system for removing ferrous materials from a flow of non-ferrous materials, the flow being defined by a duct having sides to confine the flow of non ferrous materials along a flow path axis. The system includes an enclosure having sides, at least one si... | 03/05/2002 |
| 6308835 | Continuous self-cleaning sluice This invention is a moving table for separating valuable heavy particles from an orebearing slurry of heavy consistency. The system uses reversing polarity as well as lateral oscillation. It also uses at least two tables to provide multiple stages of prog... | 10/30/2001 |
| 6230897 | Device and process for separating particles with a rotary magnet system An apparatus for separating mixed particles divides the material to be sorted into constituent fractions comprising non-ferromagnetic particles of different electrical conductance. The particles are fed onto a conveyor, e.g. a conveyor belt which linearly... | 05/15/2001 |
| 6193892 | Magnetic separation assembly and method Provided are a magnetic particle separation assembly and method for separating a magnetically responsive complex from a non-magnetic test media in which the magnetically responsive complex is suspended. The assembly comprises an invertible rack for holdin... | 02/27/2001 |
| 6149014 | Mill magnet separator and method for separating A top feed, wet drum magnetic separator capable of treating, removing tramp metal from the full flow discharge of a grinding mill having a feed box which provides overflow capacity, velocity break to minimize turbulence, and spread the slurry evenly acros... | 11/21/2000 |
| 6129213 | Magnetic trash container lid with plate scraper A trash container lid facilitates easy disposal of food scraps while inhibiting inadvertent disposal of tableware. The trash container lid includes a cover configured to cover at least a portion of an opening in a trash container. A chute is formed in the... | 10/10/2000 |
| 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 |
| 5996809 | Flatware sorting machine A flatware sorting machine including a feed bin for holding unsorted flatware, a sorting system for sorting the flatware, and a flatware pick-up and transport system for retrieving the flatware from the feed bin and transporting them to the sorting system... | 12/07/1999 |
| 5975310 | Method and apparatus for ball separation The arcuate magnet is made up of a series of magnets that produce a radial shape magnetic field. The arcuate magnet is supported adjacent the outer periphery of the cylindrical blind trommel. The blind trommel is rotated. Steel balls and magnetic material... | 11/02/1999 |
| 5967330 | Methods of separating metal cans and plastic bottles The present invention relates to an improved method of removing and transporting empty, recyclable, aluminum and plastic beverage containers returned to redemption centers without requiring the redemption centers to sort the containers by distributor and ... | 10/19/1999 |
| 5931308 | Eddy current separator and separation method having improved efficiency An eddy current separator (10,10a,10b,10c,10d, 10e,10f,10g) and a separation method for separating non-ferromagnetic particles (14) by engaging the particles from above by a distal end (50) of an inclined engagement member (42, 42', 42") to force the part... | 08/03/1999 |
| 5887728 | Separator and separation method A mixture of electronic component chips 2 and media 3 is placed in a planar state on a transport surface 4 of a conveyor 5. Only the media 3 are collected onto a first circulating circumferential surface 18 by a magnetic force provided by a first collecti... | 03/30/1999 |
| 5823354 | Method and apparatus for the separation and sorting of non-ferrous materials An apparatus for separating and sorting non-ferrous metals from other materials is provided which has a ferromagnetic core, an infeed conveyor for positioning materials to be separated and sorted, and a collecting bin or container located at a selected di... | 10/20/1998 |
| 5797498 | Magnetic separator and sweeping brush used therein A magnetic separator for separating a magnetic substance such as metal parts or workpieces from a nonmagnetic substance such as abrasives used in a barrel finishing includes an infeed passage along which a mixture of the workpieces and the abrasives is co... | 08/25/1998 |
| 5772043 | System and method for separating 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 ... | 06/30/1998 |
| 5743410 | Supraconducting magnetic separator A super-conducting magnet includes a vessel (8) defining a separation zone through which material to be separated passes. The magnet includes a super-conducting coil (4) located in the vessel and surrounding the separation zone for providing a magnetic fi... | 04/28/1998 |
| 5678696 | Aluminum can recycling A compact aluminum can separator have a a continuous conveyer belt, means mounting the conveyer belt to have an upper layer and a lower layer and for revolving said belt to cause the upper layer to travel generally horizontally from an input end of the se... | 10/21/1997 |
| 5671666 | Can recycling apparatus A system for recycling cans includes a housing adapted for displaying promotional advertising, a deposit slot for receiving the cans and a discharge system for providing immediate payment for the recyclable cans. The system incorporates a rotating drum fo... | 09/30/1997 |
| 5638959 | Rotary materials separator Solid waste is sorted by passing it through a rotating hollow drum which has sets of extensions, called flights, from the interior wall of the drum, some sets of flights being separated from each other and from the entrance to the drum by blank sections a... | 06/17/1997 |
| 5636747 | Combination magnetic separation, classification and attrition process for renewing and recovering particulates Optimized utilization of combinations of fluid catalyst magnetic separator, classifier, and/or attriter can be used to achieve lower catalyst cost, and better catalyst activity and selectivity through control of metal-on-catalyst, particle size and partic... | 06/10/1997 |
| 5626233 | Eddy current separator The disclosed eddy-current separator has several new features. One includes a magnet assembly which is metal-sleeved for protecting the magnets from impact by particles or objects piercing the waste-carrying conveyor belt with which the separator is used.... | 05/06/1997 |
| 5622265 | Abrasive grit material recovery system A mobile apparatus and process for the separation and recovery of abrasive grit material from blasting material containing waste material and contaminants. The mobile apparatus has a low profile which facilitates the movement of the apparatus to job sites... | 04/22/1997 |
| 5588534 | Garbage separator system There is provided a method and apparatus for processing domestic garbage wherein the garbage is debagged and placed on a series of vibrating conveyors which are tilted with respect to the horizontal in a direction substantially normal to the direction of ... | 12/31/1996 |
| 5571481 | Magnetic capture rack with slidable magnetic member A magnetic capture rack is disclosed for holding a plurality of tubes, the magnetic capture rack including a primary housing member having a stepped upper surface, a substantially planar base surface, and a longitudinal bore formed in the primary housing.... | 11/05/1996 |
| 5549207 | Metal particle sweeper A hand held tool for gathering and later releasing metallic particles such as paper clips or a spilled box of pins or tacks includes a handle with a magnetic attached at the bottom and a sweeper cover covering the magnet and hinged to the handle. Ferrous ... | 08/27/1996 |
| 5520288 | Abrasive grit material recovery system A mobile apparatus and process for the separation and recovery of abrasive grit material from blasting material containing waste material and contaminants. The mobile apparatus has a low profile which facilitates the movement of the apparatus to job sites... | 05/28/1996 |