Memory alloy-actuated apparatus and methods for making and using the same
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United States of America Patent
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Dec 8, 2015
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app pub date -
Oct 26, 2012
filing date -
Oct 26, 2011
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Abstract
Improved actuator apparatus and methodologies for manufacturing and using the same. In one exemplary embodiment, the actuator apparatus includes an SMA filament that: (1) minimizes size and increases stroke length via a serpentine-like routing of the SMA filament within the device itself; (2) reduces power consumption as a result of a relatively flat stroke force as a function of stroke displacement operating profile; (3) enables the actuator assembly to remain in a fully actuated state, at a consistent stroke force, for longer periods of time; and (4) is also fully reversible so as to be capable of use in both push-based and pull-based actuator applications. Methods of operation and manufacturing associated with the aforementioned actuator apparatus are also disclosed.
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