Tear resistant electroactive polymer transducers
US7804227B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2008 |
| Grant date | Sep 28, 2010 |
| Priority date | — |
| Expiry date | Sep 14, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S310/80
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Described herein are several solutions that increase transducer lifetime by reducing or preventing tear propagation in a compliant electroactive polymer. One solution couples a compliant tear resistant treatment to a transducer proximate to an edge portion of the electroactive polymer. Another solution uses a tear resistant layer that couples to and covers a large surface area of the transducer. Another suitable tear resistant solution provides added material outside an active area; the added material reduces stress or strain variations in polymer material outside the active area when the electroactive polymer transducer is deflected or pre-strained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.