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| Number | Title | Issue Date |
| 7876010 | Passive magnetic bearing configurations A journal bearing provides vertical and radial stability to a rotor of a passive magnetic bearing system when the rotor is not rotating and when it is rotating. In the passive magnetic bearing system, the rotor has a vertical axis of rotation. Without the journal be... | 01/25/2011 |
| 7834513 | Electrostatic generator/motor having rotors of varying thickness and a central stator electrically connected together into two groups A sub-module consists of a set of two outer sets of stationary fan-blade-shaped sectors. These outer sectors include conductive material and are maintained at ground potential in several examples. Located midway between them is a set of stationary sector plates with... | 11/16/2010 |
| 7478598 | Oscillation damping means for magnetically levitated systems The present invention presents a novel system and method of damping rolling, pitching, or yawing motions, or longitudinal oscillations superposed on their normal forward or backward velocity of a moving levitated system. ... | 01/20/2009 |
| 7078838 | Passive magnetic bearing for a motor-generator Conductive lap windings are interleaved with conventional loops in the stator of a motor-generator. The rotor provides magnetic induction lines that, when rotated, cut across the lap windings and the loops. When the rotor is laterally displaced from its equilibrium ... | 07/18/2006 |
| 6906528 | Electronic non-contacting linear position measuring system A non-contacting linear position location system employs a special transmission line to encode and transmit magnetic signals to a receiver on the object whose position is to be measured. The invention is useful as a non-contact linear locator of moving objects, e.g.... | 06/14/2005 |
| 6906446 | Halbach array generator/motor having mechanically regulated output voltage and mechanical power output A motor/generator has its stationary portion, i.e., the stator, positioned concentrically within its rotatable element, i.e., the rotor, along the axis of rotation of the rotor. The rotor includes a Halbach array of magnets. The voltage and power outputs are regulat... | 06/14/2005 |
| 6858962 | Halbach array generator/motor having an automatically regulated output voltage and mechanical power output A motor/generator having its stationary portion, i.e., the stator, positioned concentrically within its rotatable element, i.e., the rotor, along its axis of rotation. The rotor includes a Halbach array. The stator windings are switched or commutated to provide a DC... | 02/22/2005 |
| 6758146 | Laminated track design for inductrack maglev systems A magnet configuration comprising a pair of Halbach arrays magnetically and structurally connected together are positioned with respect to each other so that a first component of their fields substantially cancels at a first plane between them, and a second componen... | 07/06/2004 |
| 6657344 | Passive magnetic bearing for a horizontal shaft A passive magnetic bearing is composed of a levitation element and a restorative element. The levitation element is composed of a pair of stationary arcuate ferromagnetic segments located within an annular radial-field magnet array. The magnet array is at... | 12/02/2003 |
| 6396186 | Electromechanical battery design suitable for back-up power applications The windings that couple energy into and out of the rotor of an electro-mechanical battery are modified. The normal stator windings of the generator/motor have been replaced by two orthogonal sets of windings. Because of their orthogonality, they are deco... | 05/28/2002 |
| 6250230 | Apparatus and method for reducing inductive coupling between levitation and drive coils within a magnetic propulsion system An apparatus and method is disclosed for reducing inductive coupling between levitation and drive coils within a magnetic levitation system. A pole array has a magnetic field. A levitation coil is positioned so that in response to motion of the magnetic f... | 06/26/2001 |
| 6191515 | Combined passive magnetic bearing element and vibration damper A magnetic bearing system contains magnetic subsystems which act together to support a rotating element in a state of dynamic equilibrium and dampen transversely directed vibrations. Mechanical stabilizers are provided to hold the suspended system in equi... | 02/20/2001 |
| 6111332 | Combined passive bearing element/generator motor An electric machine includes a cylindrical rotor made up of an array of permanent magnets that provide a N-pole magnetic field of even order (where N=4, 6, 8, etc.). This array of permanent magnets has bars of identical permanent magnets made of dipole el... | 08/29/2000 |
| 5883499 | Method for leveling the power output of an electromechanical battery as a function of speed The invention is a method of leveling the power output of an electromechanical battery during its discharge, while at the same time maximizing its power output into a given load. The method employs the concept of series resonance, employing a capacitor th... | 03/16/1999 |
| 5861690 | Fail safe controllable output improved version of the Electromechanical battery Mechanical means are provided to control the voltages induced in the windings of a generator/motor. In one embodiment, a lever is used to withdraw or insert the entire stator windings from the cavity where the rotating field exists. In another embodiment,... | 01/19/1999 |
| 5847480 | Passive magnetic bearing element with minimal power losses Systems employing passive magnetic bearing elements having minimal power losses are provided. Improved stabilizing elements are shown, employing periodic magnet arrays and inductively loaded circuits, but with improved characteristics compared to the elem... | 12/08/1998 |
| 5783885 | Self-adjusting magnetic bearing systems A self-adjusting magnetic bearing automatically adjusts the parameters of an axially unstable magnetic bearing such that its force balance is maintained near the point of metastable equilibrium. Complete stabilization can be obtained with the application ... | 07/21/1998 |
| 5777775 | Mechanical beam isolator for high-power laser systems A mechanical beam isolator uses rod-shaped elements having a Gaussian configuration to interrupt the path of a beam of photons or particles when the time-scale of the needed interruption is of the order of a microsecond or less. One or more of these rods ... | 07/07/1998 |
| 5722326 | Magnetic levitation system for moving objects Repelling magnetic forces are produced by the interaction of a flux-concentrated magnetic field (produced by permanent magnets or electromagnets) with an inductively loaded closed electric circuit. When one such element moves with respect to the other, a ... | 03/03/1998 |
| 5705902 | Halbach array DC motor/generator A new configuration of DC motor/generator is based on a Halbach array of permanent magnets. This motor does not use ferrous materials so that the only losses are winding losses and losses due to bearings and windage. An "inside-out" design is used as comp... | 01/06/1998 |
| 5495221 | Dynamically stable magnetic suspension/bearing system A magnetic bearing system contains magnetic subsystems which act together to support a rotating element in a state of dynamic equilibrium. However, owing to the limitations imposed by Earnshaw's Theorem, the magnetic bearing systems to be described do not... | 02/27/1996 |
| 5286113 | Centrifugally activated bearing for high-speed rotating machinery A centrifugally activated bearing is disclosed. The bearing includes an annular member that extends laterally and radially from a central axis. A rotating member that rotates about the central axis relative to the annular member is also included. The rota... | 02/15/1994 |
| 5140158 | Method for discriminative particle selection The invention is a method and means for separating ions or providing an ion beam. The invention generates ions of the isotopes to be separated, and then provides a traveling electric potential hill created by a sequential series of quasi static electric p... | 08/18/1992 |
| 4899084 | Particle accelerator employing transient space charge potentials The invention provides an accelerator for ions and charged particles. The plasma is generated and confined in a magnetic mirror field. The electrons of the plasma are heated to high temperatures. A series of local coils are placed along the axis of the ma... | 02/06/1990 |
