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| Number | Title | Issue Date |
| 7396057 | Lifting magnet A lifting magnet having a housing, a rotary magnet unit, and a stationary magnet unit. The lifting magnet also includes a pinion, a socket moving up and down, a slider rotating the pinion to set the magnetization and demagnetization states at top and bottom dead poi... | 07/08/2008 |
| 7328630 | End effector inspection apparatus and method A method for using an end effector for inspecting a structure is provided. An end effector includes a magnetically coupled attachment member for connecting the end effector to a control system bridge. An end effector also includes a telescoping arm at least partiall... | 02/12/2008 |
| 7300043 | Rotating positioning vise A rotating positioning vise for use in hand working operations. The positioning mechanism utilizes a permanent magnet that is lifted off the surface of a turntable by the means of a lever. The user pushes on the lever, moves the vise in the position desired and then... | 11/27/2007 |
| 7161451 | Modular permanent magnet chuck A permanent magnet chuck for holding or lifting workpieces is formed of two overlying/underlying flat surfaced chuck layers having a common center of rotation. In each chuck layer an even number of permanent magnet plates radiate from the center of rotation at equal... | 01/09/2007 |
| 7102476 | Method to estimate attractive force in a permanent magnet chuck The design of permanent magnet chucks of desired specified attractive force at the base or working face of the chuck is expedited by the discovery of a general correlation between two specific engineering parameters. The attractive force intensity expressed as force... | 09/05/2006 |
| 7049919 | Magnetic adsorption device and production method thereof and magnetic apparatus A magnetic adsorption device comprises: a magnetic circuit block having a cavity extending in one direction and divided into a plurality of magnetic pole members at intervals in the circumferential direction of the cavity by a plurality of spacers; and a permanent m... | 05/23/2006 |
| 7038566 | Magnetic pallet for anchorage of ferromagnetic parts for machining by machine tools with horizontal tool axis A magnetic pallet (1) for anchorage of a ferromagnetic part to be taken for machining to a machine tool with horizontal tool axis, the magnetic pallet (1) including a base plate (3), a vertical parallelepiped shoulder (5) extending from t... | 05/02/2006 |
| 7009480 | Semi-releasable magnetic tool A semi-releasable magnetic tool is disclosed. The tool comprises two magnetizable pole plates. Each of said pole plates is bounded by peripheral edges. The pole plates are spaced apart and preferably disposed in substantial registry with one another. A generally non... | 03/07/2006 |
| 6963261 | Magnetic anchoring module with a system for enabling/disabling and adjusting the magnetic anchoring force and related assemblies Magnetic module for the magnetic anchorage to a ferromagnetic surface of another magnetic, or ferromagnetic module, whose head includes: a first multipolar magnetic stator that in turn defines a multipolar magnetic anchoring surface, and a multipolar magnetic rotor ... | 11/08/2005 |
| 6925975 | Controller for controlling an electromagnetic actuator A controller for an electromagnetic actuator comprises a pair of springs acting on opposite directions, and an armature connected to the springs. The armature is held in a neutral position given by the springs when the armature is not activated. The actuator also co... | 08/09/2005 |
| 6854777 | Magnetic lifting machine using neodymium magnets A magnetic lifting machine according to the present invention is to prevent an antioxidant film on the surface of neodymium magnets from exfoliation, by having the neodymium magnets not be in direct contact with a pair of polarity plates of the machine but via anti-... | 02/15/2005 |
| 6763789 | Electromagnetic actuator with permanent magnet A system and method for increasing force density of a valve actuator particularly suited for use in actuation of intake and/or exhaust valves of an internal combustion engine include at least one electromagnet having a coil wound about a core, and an armature fixed ... | 07/20/2004 |
| 6538544 | Pneumatically actuated magnetic workpiece holder A pneumatically actuated magnetic workpiece holder comprising a housing having a contact surface for contacting a workpiece to be held, and a magnet assembly translationally disposed in the housing, the magnet assembly comprising a plurality of permanent ... | 03/25/2003 |
| 6489871 | Magnetic workholding device A magnetic device includes a cylindrical outer pole having a central axis and formed of a ferromagnetic material including a circular base and a cylindrical sleeve defining an outwardly opening cylindrical cavity. A reversible magnetic unit located in sai... | 12/03/2002 |
| 6448092 | Separation device for microparticles involving a magnetic rod The invention relates to a means for separating magnetic particles from a composition. The means comprises an elongated protective cover (1) that comprises a recess (2) extending from the upper end towards the lower end thereof, the recess comprising a mo... | 09/10/2002 |
| 6331810 | Magnetic lifting apparatus A magnetic lifting apparatus by using neodymium magnets, incorporating a plurality of polarity plates (10) disposed with a predetermined interval and having non-magnetic medium (11) in the longitudinal center; a plurality of interval members (20) disposed... | 12/18/2001 |
| 6292078 | Manually controlled magnetic anchoring device A manual magnetic anchoring device includes a monolithic ferromagnetic block, whereon a housing for stator magnets, a housing for a rotor core, a ferromagnetic crown for short circuiting of the magnetic flux during deactivation of the anchoring device, an... | 09/18/2001 |
| 6278350 | Holding device for workpieces in the form of even metal sheets A holder device for workpieces in the form of even or flat metal sheets of a magnetically attractable material, which are to be welded together along a connecting path at edges thereof. The holder device forms a support face for the sheets to rest on. The... | 08/21/2001 |
| 6271751 | Magnetic lock and status detection system and method therefor An electromagnetic lock and status detection system and method therefor includes an armature, an electromagnet, and a status detection unit. The electromagnet is magnetically attracted to the armature into a mating relationship. A relatively high inductan... | 08/07/2001 |
| 6207463 | Separation device for microparticles involving a magnetic rod The invention relates to a means for separating magnetic particles from a composition. The means comprises an elongated protective cover (1) that comprises a recess (2) extending from the upper end towards the lower end thereof, the recess comprising a mo... | 03/27/2001 |
| 6076873 | Magnetic lifting apparatus A magnetic lifting apparatus includes a plurality of magnetic substances, a plurality of rotor seat members, magnetic rotors, and permanent magnets alternately aligned with the plurality of magnetic substances. The apparatus includes stopping members for ... | 06/20/2000 |
| 6020211 | Separation of magnetic microparticles involving a preconcentration step The invention relates to a method for separating magnetic particles from a composition in a vessel. In the method, particles are first concentrated on the wall of the vessel and collected from this area by using a separation means (1) to which the magneti... | 02/01/2000 |
| 6005460 | High temperature superconductor magnetic clamps Magnetic flux trapping clamps are provided that trap or pin the magnetic flux of ring shaped superconductive magnets in a high permeability metallic core located in the bore of the ring. Preferably, the superconductive magnets comprise a single crystal cu... | 12/21/1999 |
| 5818318 | Magnetic clamping device The invention relates to a magnetic clamping device with a clamping body (1) comprising a cylinder plate (2) of non-magnetizable material provided with cylinders (5), a clamping plate (3) of non-magnetizable material situated at one side of the cylinder p... | 10/06/1998 |
| 5711223 | Magnetic plate cylinder A magnetic plate cylinder for a printing press includes an outer cylinder member having circumferentially and axially spaced plugs of magnetic material or axially spaced apart rings of magnetic material for directing a magnetic field in such a way as to h... | 01/27/1998 |
| 5435613 | Magnetic lifting apparatus A magnetic lifting apparatus includes a plurality of magnetic substances, a plurality of pairs of first permanent magnets, a plurality of rotors having a pair of second permanent magnets, respectively, and an on/off switch handle connected to the rotors w... | 07/25/1995 |
| 5382935 | Permanent-magnet grab A magnetic grab has a pair of vertically elongated magnetic pole pieces each having an upper end and a lower end. The pole pieces diverge downward symmetrically with respect to a vertical symmetry plane with the upper ends substantially more closely space... | 01/17/1995 |
| 5270678 | Magnetic rail chuck In the magnetic chuck disclosed herein, a pair of elongate pole members are arranged to provide magnetic contact with a workpiece along parallel lines and thus are somewhat in the nature of rails. Preferably, the ends of the poles are segmented and provid... | 12/14/1993 |
| 5266914 | Magnetic chuck assembly A magnetic chuck assembly comprises top and bottom plates separated by a layer of non-magnetizable material, each plate having magnetizable sections separated by strips of non-magnetic material. A rotor mounted between the top and bottom plates carries a ... | 11/30/1993 |
| 5166654 | Permanent-magnet grab A magnetic grab has a pair of pole pieces each forming a downwardly directed pole and formed adjacent the respective poles with horizontally extending semicylindrical seats having approximately the same center of curvature and open concavely inward toward... | 11/24/1992 |
| 5066936 | Structure of permanent magnetic work holder A new structure of permanent magnetic sucker comprising a base, a magnet conductive disk, a sucker, a support plate spring, an operating lever and a cam, in which the base is made of light-weight aluminum alloy to minimize its weight and load to working b... | 11/19/1991 |
| 5041806 | Electromagnetic holding device The invention is directed to an electromagnetic holding device which includes one or more permanent magnets and an electromagnet. The holding device releases and pulls in units which are held thereon. During an exchange operation, the field of the electro... | 08/20/1991 |
| 4956625 | Magnetic gripping apparatus having circuit for eliminating residual flux A magnetic gripping apparatus, of the permanent magnet type, comprising a base plate and peripheral walls, at least a first and a second pole units, each pole unit comprising a main pole piece having an outer face defining a gripping surface, main permane... | 09/11/1990 |
| 4837540 | Magnetic work-holder A magnetic holding device, comprising magnetically activable holding surface having pole members of different polarities, and at least a first and a second single-pole extension members for said pole members of opposite polarities. Each pole-extension mem... | 06/06/1989 |
| 4822085 | Adjustable magnetic door latch system A rotatably adjustable two magnet door latch system is presented. Ferro magnetic latching means are normally coupled to the edge of a door stop. A multi-part door latch assembly is coupled to the edge of the door adjacent the stop when the door is closed.... | 04/18/1989 |
| 4801911 | Selective magnetic lifting system A method and apparatus for assembling magnetic serpentine coils on a magnetic sheet includes a carriage movable vertically and horizontally and supporting on its lower side a plurality of elongated electromagnets. Permanent magnets are arranged to have an... | 01/31/1989 |
| 4679021 | Magnetic retention plate with permanent magnets Longitudinal and transverse rows of pole pieces are flanked by pairs of rows of fixed permanent magnets in one direction and by movable permanent magnets in another direction and are mounted on a magnetic or nonmagnetic base plate. An actuating mechanism ... | 07/07/1987 |
| 4663602 | Magnetic chuck The magnetic chuck disclosed herein is of the permanent magnet type in which both a top plate and a shiftable pack comprise alternating major pole pieces and magnets, the pack being shiftable so that its magnets either aid or oppose the magnets in the top... | 05/05/1987 |
| 4652845 | Magnetic holding device A magnetic holding device to be mounted to a magnetizable surface. It includes a body and a magnet having a pair of poles. A first and a second pole piece are mounted to the body adjacent to the magnet, each forming a continuation of a respective one of t... | 03/24/1987 |
| 4649623 | Chucking device for interchangeable holding of probe pins in a coordinate-measuring instrument The invention concerns a receiver (1) in the probe head of a multiple-coordinate measuring machine in which probe-pin combinations (21) can be replaceably chucked with high precision with respect to their position in space. The receiver contains an isosta... | 03/17/1987 |
