Electroactive polymer transducers biased for increased output
US7492076B2 · kind B2 · utility
40Cited by
44References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2006 |
| Grant date | Feb 17, 2009 |
| Priority date | — |
| Expiry date | Apr 20, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S310/80
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Electroactive polymer transducers are disclosed. They are biased in a manner that provides for increased force and/or stroke output, thereby offering improved work potential and power output capacity. The biasing may offer additional or alternate functional advantage in terms of matching transducer performance with a given application such as a normally-closed valve. The improved biasing (including increased output biasing) may utilize negative spring rate biasing and/or a combination of negative or zero-rate biasing with positive rate biasing to achieve the desired ends.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.