Self-contained voltage generating systems
US7944122B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2007 |
| Grant date | May 17, 2011 |
| Priority date | — |
| Expiry date | Mar 29, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA45D2200/157
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A self-contained voltage generating system is incorporated in a package or device for housing a product. There is at least one piezoelectric element incorporated in the package or device and the piezoelectric element generates a source of voltage when it is activated. The voltage is then used to perform various activities on other elements that are part of the package or device, such as operate a motor, provide heat, provide ultrasonic energy, furnish light, provide acoustic energy, and provide vibration energy. The piezoelectric elements are in the form of discrete particles, piezoelectric fibers, filaments, transducers, and actuators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.