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Class Information
Number: 310/339
Name: Electrical generator or motor structure > Non-dynamoelectric > Piezoelectric elements and devices > With mechanical energy coupling means > Voltage, spark or current generator
Description: Subject matter wherein mechanical energy from an external source is applied to the piezoelectric element to produce an electric potential difference between at least two electrically accessible points on the surface of the element.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 8227928 |
Thermo-electro-acoustic engine and method of using same |
Jul. 24, 2012 |
| 8227955 |
Temperature-activated voltage generator |
Jul. 24, 2012 |
| 8227956 |
Mobile user interface with energy harvesting |
Jul. 24, 2012 |
| 8227957 |
Apparatus for generating electrical energy using electrically connected nanowire and active layer and method for manufacturing the same |
Jul. 24, 2012 |
| 8222775 |
Electromechanical energy harvesting system |
Jul. 17, 2012 |
| 8217784 |
Battery-less emergency distress signal and position indication broadcasting methods and devices |
Jul. 10, 2012 |
| 8212456 |
Method of making and ceramic articles with multiple regions of distinct density |
Jul. 3, 2012 |
| 8212436 |
Apparatus for harvesting electrical power from mechanical energy |
Jul. 3, 2012 |
| 8207653 |
Piezoelectric generating apparatus |
Jun. 26, 2012 |
| 8203224 |
Power generator |
Jun. 19, 2012 |
| 8198789 |
Apparatus for generating electrical energy and method for manufacturing the same |
Jun. 12, 2012 |
| 8198788 |
Self-contained U or V shaped piezoelectric device for generating voltage |
Jun. 12, 2012 |
| 8193684 |
V-shaped or U-shaped piezoelectric device for generating an electrical voltage |
Jun. 5, 2012 |
| 8188622 |
Tunable resonant frequency kinetic energy harvester |
May. 29, 2012 |
| 8188636 |
Energy generator systems with a voltage-controlled switch |
May. 29, 2012 |
| 8183746 |
Methods and apparatus for mechanical reserve power sources for gun-fired munitions, mortars, and gravity dropped weapons |
May. 22, 2012 |
| 8179027 |
Coating for actuator and method of applying coating |
May. 15, 2012 |
| 8176781 |
Multilayer piezoelectric thin film and method of manufacturing the same, angular velocity sensor, piezoelectric generating element, and method of generating electric power using the piezoelect |
May. 15, 2012 |
| 8174168 |
Piezoelectric power generating device |
May. 8, 2012 |
| 8174167 |
Bistable piezoelectric generator |
May. 8, 2012 |
| 8174133 |
Environment friendly remote control |
May. 8, 2012 |
| 8154174 |
Bending transducer device for generating electrical energy from deformations and circuit module |
Apr. 10, 2012 |
| 8154177 |
Wide-band vibration energy harvester with stop |
Apr. 10, 2012 |
| 8154176 |
System and method for resonance frequency tuning of resonant devices |
Apr. 10, 2012 |
| 8143767 |
Compact thermoacoustic array energy converter |
Mar. 27, 2012 |
| 8143766 |
Harvesting energy from vehicular vibrations using piezoelectric devices |
Mar. 27, 2012 |
| 8143765 |
Self-powering headset, devices and related methods |
Mar. 27, 2012 |
| 8134282 |
Wide-band vibration energy harvester with restoring spring |
Mar. 13, 2012 |
| 8134281 |
Electrical generators for use in unmoored buoys and the like platforms with low-frequency and time-varying oscillatory motions |
Mar. 13, 2012 |
| 8129887 |
System and method for harvesting energy from environmental vibrations |
Mar. 6, 2012 |
| 8129885 |
Electric generating unit as substitute for vehicle battery |
Mar. 6, 2012 |
| 8125122 |
Method and circuit for energizing an electrical device |
Feb. 28, 2012 |
| 8120232 |
Sensors and actuators using piezo polymer layers |
Feb. 21, 2012 |
| 8110964 |
Energy harvesting device |
Feb. 7, 2012 |
| 8093784 |
Piezoelectric power generating element, and method of generating electric power using the piezoelectric power generating element |
Jan. 10, 2012 |
| 8080920 |
Piezoelectric vibrational energy harvesting systems incorporating parametric bending mode energy harvesting |
Dec. 20, 2011 |
| 8076825 |
Electret film generator |
Dec. 13, 2011 |
| 8072122 |
Self-powered impulse detection system with piezoelectric energy harvester |
Dec. 6, 2011 |
| 8067878 |
Bladeless wind power generator |
Nov. 29, 2011 |
| 8063541 |
Holster-integrated piezoelectric energy source for handheld electronic device |
Nov. 22, 2011 |
| 8053914 |
Method and apparatus for energy harvesting using microfluidics |
Nov. 8, 2011 |
| 8040021 |
Device for the active damping of the vibrations experienced by a fragile part of moving equipment, with autonomous power supply |
Oct. 18, 2011 |
| 8040022 |
Forced vibration piezo generator and piezo actuator |
Oct. 18, 2011 |
| 8040023 |
Bending transducer for generating electrical energy from mechanical deformations |
Oct. 18, 2011 |
| 8035502 |
Tire module with piezoelectric converter |
Oct. 11, 2011 |
| 8035279 |
Electro-mechanical energy conversion devices and systems |
Oct. 11, 2011 |
| 8030826 |
Energy regeneration device for suspension system |
Oct. 4, 2011 |
| 8030807 |
Electromechanical energy harvesting system |
Oct. 4, 2011 |
| 8030825 |
Piezoelectric generator and method |
Oct. 4, 2011 |
| 8020266 |
Method of producing a device |
Sep. 20, 2011 |
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