Bizarre Patents
Reward Candy Dispenser for Personal Computers
A personal computer peripheral, battery powered reward candy dispenser which immediately presents students with a single candy for each problem completed correctly.
PatentStorm News
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 |
| 7385329 | Electric machine for high magnetic reversal frequencies In electric machines, core losses limit, at high fundamental frequency, the permissible full-load power. The aim of the invention is to develop a design which enables a high power density at high magnetic reversal frequencies and which is easy to produce. To this en... | 06/10/2008 |
| 7321177 | Synchronous electric motor A synchronous electric motor including a rotor having a rotation axis, and a stator surrounding the rotor through a gap. The rotor includes a rotor core having an outer circumferential surface extending about the rotation axis and a plurality of permanent magnets at... | 01/22/2008 |
| 7301310 | Excitation controlled synchronous permanent magnet machine The present invention provides an apparatus and methods for providing constant voltage from a permanent magnet generator at varying prime mover speeds or under varying loads. A constant voltage permanent magnet generator includes a housing, a magnetized rotor, a pri... | 11/27/2007 |
| 7265470 | Magnetic spring and actuators with multiple equilibrium positions Arrays of magnets configured to create linear or rotary magnetic springs with multiple equilibrium points. Some of the equilibrium points are stable, while others are unstable. No mechanical contact is required between moving and stationary elements of the magnetic ... | 09/04/2007 |
| 7250702 | Rotary electric machine comprising a stator and two rotors The invention relates to an electric machine comprising a stator (10, 40) provided with a plurality of teeth (11, 41), each tooth supporting at lest one individual coil (13, 46, 47), an external rotor (30) which is radially arranged outsi... | 07/31/2007 |
| 7235909 | Electromagnetic motor/generator In some embodiments, an electromagnetic motor/generator may include one or more of the following features: (a) a frame, (b) a magnetic section having an upper magnet, a lower magnet, and a center magnet, coupled to the frame, and (c) at least one solenoid coupled to... | 06/26/2007 |
| 7084540 | Magnet motor and method of assembly A magnet motor with rotor assembly is provided that has a plurality of magnet members that circumscribe a wall of the rotor core or stator in an orientation that minimizes or eliminates gaps therebetween. The magnet members can have non-parallel opposing sides to al... | 08/01/2006 |
| 7071591 | Electromagnetic circuit and servo mechanism for articulated cameras An electromagnetic circuit that may be advantageously employed in an articulated camera, such as a CCTV camera, as a part of a servo mechanism to directly drive the camera and optical lens assembly, for example, in the pan and/or tilt axes. In one embodiment, the co... | 07/04/2006 |
| 6956312 | Brushless DC motor and method of manufacturing brushless DC motor A brushless DC motor including a stator having plural slots; and a rotor which has plural permanent magnets and is divided into three rotor blocks in a rotation axis direction, the three rotor blocks being layered so that the arrangement angles of the rotor blocks d... | 10/18/2005 |
| 6943474 | Brushless DC motor and method of manufacturing brushless DC motor A brushless DC motor including a stator having plural slots; and a rotor which has plural permanent magnets and is divided into three rotor blocks in a rotation axis direction, the three rotor blocks being layered so that the arrangement angles of the rotor blocks d... | 09/13/2005 |
| 6891295 | Flywheel magneto generator A flywheel magneto generator which comprises a rotor having a magnet attached to an outer circumferential side of a flywheel and a stator constructed by winding a generating coil around a core having a magnetic pole portion opposed to a magnetic pole of the rotor, w... | 05/10/2005 |
| 6741002 | Motor having a rotor with interior split-permanent-magnet A motor includes a rotor with interior permanent magnets and a stator with teeth wound by concentrated windings. Each permanent magnet is split along a plane oriented towards the stator, and an electrically insulating section is set between the split magnet pieces. ... | 05/25/2004 |
| 6703741 | Permanent magnet rotor portion for electric machines A rotor for an electric machine comprising a plurality of independent poles (58) having a triangular cross section shape and permanent magnets (56) having a trapezoidal cross section shape. The shapes of the independent poles and permanent magnets coopera... | 03/09/2004 |
| 6628031 | Harmonic-frequency synchronous machine with flux concentration An electric synchronous machine with improved torque characteristic has a stator and a rotor, wherein the stator includes a winding, preferably a three-phase AC winding, with an average coil width ͌sp. The rotor is provided with permanent magnets and has... | 09/30/2003 |
| 6448680 | Rotating electric machine with permanent magnets and magnetic resistance with improved flux weakening properties The invention concerns a rotating electric machine which includes a stator equipped with armature coils and a rotor mounted rotating inside the stator. The rotor having a series of magnets with alternating polarities juxtaposed with magnetic parts having ... | 09/10/2002 |
| 6340857 | Motor having a rotor with interior split-permanent-magnet A motor includes a rotor with interior permanent magnets and a stator with teeth wound by concentrated windings. Each permanent magnet is split along a plane oriented towards the stator, and an electrically insulating section is set between the spilt magn... | 01/22/2002 |
| 5280209 | Permanent magnet structure for use in electric machinery Magnetically rigid materials are utilized to enhance the field magnitudes oduced by permanent magnet structures that are utilized in electric machinery. Magnetic circuit losses due to unnecessary magnetic fields are eliminated without employing a conventi... | 01/18/1994 |
| 5128575 | Electric machine with permanent magnet rotor An electric machine (2) comprising a first functional part (4) with a permanently magnetic excitation system (12) and a second functional part (6) with a conductor system (10), the first functional part (4) and the second functional part (6) being movable... | 07/07/1992 |
| 5013951 | Multipolar rotor for electric machine with interpolar and polar magnets A multipolar rotor of an electric machine, essentially in the form of a circular cylinder, comprising an even number of pole magnets (1), which is equal to at least four, said pole magnets (1) being arranged uniformly along a circle and interpole magnets ... | 05/07/1991 |
