Class / Patent application number | Description | Number of patent applications / Date published |
322003000 | RECIPROCATING AND/OR OSCILLATING-TYPE GENERATOR | 8 |
20080297119 | FLUID-INDUCED ENERGY CONVERTER WITH CURVED PARTS - An energy converter for inducing membrane vibrations of a membrane when subject to a fluid flow, and converting the vibrations into another form of energy, such as electricity. The energy converter includes at least one flexible membrane, at least one electrical conductor and at least one magnetic field generator configured to apply a magnetic field to the at least one electrical conductor. One of the electrical conductor and the magnetic field generator is attached to the membrane and configured to move with the membrane. The other one of the electrical conductor and the magnetic field generator has a curved surface bending towards the membrane. When subject to a fluid flow, the membrane vibrates and creates a relative movement between the conductor and the magnetic field, which induces a current. | 12-04-2008 |
20090195222 | Adjustable resonance frequency vibration power harvester - A resonance frequency vibration power harvester comprises an elongate body, a first vibration energy harvester device and a weight. The elongate body includes a first end, a second end and an interior channel extending through at least a portion of the elongate body between the first end and the second end. The second end of the elongate body is for connecting to a vibration source such that the first end is cantilevered. The first vibration energy harvester device is attached adjacent the first end of the elongate body, and the weight is joined to the interior channel to adjust a resonant frequency of the elongate body. | 08-06-2009 |
20090273322 | APPARATUS AND METHOD FOR GENERATING POWER FOR A LOW CURRENT DEVICE - A method for providing power to a low current electronic device includes pivotably coupling a door to a door frame. A rotating member of an alternating current generator is coupled to either the edge surface of the door or the door-facing surface of the door frame. A stationary member of an alternating current generator is coupled to an other of the edge surface of the door and the door-facing surface of the door frame. The door is pivoted toward an open position to thereby rotate the rotating member and generate an alternating current. The door is pivoted toward a closed position to thereby rotate the rotating member and generate an alternating current. | 11-05-2009 |
20100219798 | HARVESTING ENERGY FROM VEHICULAR VIBRATIONS - An energy harvesting apparatus, for deployment on a vehicle, comprises a vehicle shock absorber including a dust tube, and a damper tube telescopically mounted within the dust tube and configured for oscillating translational movement with respect thereto. A magnet is fixedly coupled to one of the dust tube or the damper tube, and a coil is fixedly coupled to the other of the dust tube or the damper tube to achieve relative translational movement between the magnet and the coil to induce a current in the coil. | 09-02-2010 |
20110057629 | HARNESSING POWER THROUGH ELECTROMAGNETIC INDUCTION UTILIZING PRINTED COILS - Systems for harnessing power through electromagnetic induction utilizing printed coils are provided. A system can include one or more moveable magnets adjacent to printed coils on a circuit. For example, a system can include one or more magnets that are operative to move alongside a circuit board that includes printed coils. The one or more magnets may move, for example, when a user shakes the system or when the user walks or runs while holding the device. The movement of the one or more magnets may create an electromotive force (e.g., a voltage) across the printed coils, and this force may be used to generate electric power. | 03-10-2011 |
20120235647 | SENSOR WITH ENERGY-HARVESTING DEVICE - In some embodiments of the present disclosure, a sensor comprises a substrate, a sensor element and an energy-harvesting device. The sensor element comprises a plate, and the plate is moveable with respect to the substrate. The energy-harvesting device is formed on the plate of the sensor element. | 09-20-2012 |
20130200861 | BLUFF BODY TURBINE - A passive bluff body is disposed in flowing fluid for generating power. The shape of the bluff body supports a predetermined oscillatory clockwise and counter clockwise movement about a pivot absent the influence of electrical or mechanical devices for biasing the bluff body's motion for a given velocity, or range of velocities, of the fluid flow. | 08-08-2013 |
20190149074 | AUTO-BRAKING FOR AN ELECTROMAGNETIC MACHINE | 05-16-2019 |