Actuator or sensor device based on an electroactive or photoactive polymer
US11211544B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2016 |
| Grant date | Dec 28, 2021 |
| Priority date | — |
| Expiry date | Nov 2, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/857
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An actuator or sensor device comprises an electroactive polymer (EAP) arrangement which extends between fixed opposite ends. The electroactive polymer arrangement comprises a passive carrier layer and an active electroactive polymer layer, wherein at or adjacent the ends, the passive carrier layer and the active EAP layer are mounted with one over the other in a first order, and at a middle area between the ends, the carrier layer and the active EAP layer are mounted in an opposite order. This enables internal stresses and moments within the electroactive polymer arrangement to be used more effectively to contribute to displacement or actuation force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.