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US 8,800,883 B2Granted
Actuator device including an expandable material
AssigneeCommissariat A L'energie Atomique Et Aux Energies Alternatives
InventorsBernard Guilhamat, Sebastien Dauve, Jonathan Fernandez, Florent Marquet
Life of this patent
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Abstract
An actuator device including: a case housing an expandable material, a moving part that can move in translation as a result of the expansion and/or contraction of the expandable material, and a heater to heat the expandable material. The device also includes: a position sensor which measures the current position of the aforementioned moving part; and a positioner to position the moving part, including a controller acting on the above-mentioned heater according to the current measured position.
Claims15
An actuator device comprising:
- a case housing an expandable material;
- a moving part in translation under the action of the expansion and/or contraction of said expandable material;
- a heater configured to heat said expandable material;
- a position sensor configured to measure a current position of said moving part;
- a positioner configured to position said moving part, the positioner including a controller configured to act on said heater to heat said expandable material as a function of said measured current position.
2 more elements
Dependencies are inferred from the claim text.