| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 016320000 | Magnetic | 6 |
| 20080201905 | Magnetic Hinge Mechanism for Wireless Communication Devices - A hinge mechanism movably connects two housings of a wireless communication device such that the housings move relative to each other between open and closed positions. The hinge mechanism includes a magnetic detent that initially resists the housings moving between the open and closed positions. However, the magnetic detent yields to move the housings between the open and closed positions whenever a user applies an amount of force that is sufficient to overcome the initial resistance. | 08-28-2008 |
| 20090144934 | MAGNETIC HINGE FOR ELECTRONIC DEVICES - The invention broadly contemplates an apparatus that makes it possible to easily lift up and open a notebook type computer cover irrespective of a weight of the cover and stop the cover at a predetermined opened/closed position. A portable electronic apparatus includes: a main body provided with an input operating portion, a cover provided with a display unit, a hinge mechanism including a rotary shaft fixed to the cover and a support member fixed to the main body. The apparatus includes an electromagnetic mechanism having a permanent magnet and an electromagnet, in which the permanent magnet and the electromagnet are disposed with respect to the rotary shaft so that when the current is applied or not applied to the electromagnet, a repulsive or attractive force is generated which allows the rotary shaft to be in a rotatable state, and thereby allow an opening/closing torque to act on the cover. | 06-11-2009 |
| 20100058557 | MAGNETIC HINGE ASSEMBLY - A hinge assembly includes a pivot shaft, a fixing module, a rotatable module, and a fixing member. The pivot shaft includes a first end and a second end opposite to the first end. The fixing module is non-rotatably sleeved on the pivot shaft adjacent to the first end and includes a first magnet. The rotatable module is rotatably sleeved on the pivot shaft adjacent to the second end and includes a second magnet. A polarity of the second magnet faces an opposite polarity of the first magnet such that the first and second magnets creating an attracting force. The rotatable module is pushed to tightly contact the fixing module by the attracting force such that a friction is created between the rotatable module and the fixing module to hold the rotatable module. The fixing member is fixed at the second end of the pivot shaft. | 03-11-2010 |
| 20120272480 | MAGNETORHEOLOGICAL FLUID FILLED HINGES FOR MOTION CONTROL - A hinge is provided for pivotably mounting a first attachment member to a second attachment member. A first member is attached to the first attachment member. A second member pivotably engages the first member and is disposed within the first member. The second member is configured for attachment to the second attachment member. An annular cavity is disposed between the first member and the second member. The annular cavity maintains a spaced relationship between the first member and the second member. A magnetorheological fluid is disposed within the annular cavity. A magnetic field generating member is configured to produce a change in a shear strength of the magnetorheological fluid within the annular cavity. The magnetorheological fluid applies a variable resistance torque between the first member and the second member for controlling a pivoting motion between the first member and the second member. | 11-01-2012 |
| 20140345086 | ROTOR AND STATOR DESIGN WITH PERMANENT MAGNETS - Provided is a magnetic hinge device including a rotor having an elongated body with a rotor surface at least one permanent rotor magnet coupled to the rotor surface. A stator including an inner surface that defines a cavity to receive the rotor, the rotor is positioned within the stator along a common axis of rotation. The inner surface of the stator is generally radially continuous having a first edge portion and a second edge portion such that the first edge portion is attached to the second edge portion at an offset. The stator having at least one permanent stator magnet coupled to the inner surface. The rotor includes a radial position that is configured to rotate to a neutral position within the stator. The neutral position along the common axis of rotation is in approximate alignment with the offset. | 11-27-2014 |
| 20150345194 | OVEN DOOR OPENING MAGNETIC HINGE - A hinge for rotatably coupling an appliance door with an appliance body includes a housing affixable within the door. An input arm is rotatably coupled to the housing and is affixable with the appliance body. A spring is operably engaged between the housing and the input arm to apply a balancing torque to the input arm relative to the housing. A first magnet is fixed relative to the housing and a second magnet is operatively coupled with the input arm such that rotation of the input arm with respect to the housing moves the second magnet axially with respect to the first magnet. The magnets have a mutual attraction between each other that is operable to apply a closing torque to the input arm relative to the housing. The balancing force decreases with movement of the input arm from the second position toward the first position. | 12-03-2015 |
