System for management of mechanical stress in nitinol components
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United States of America Patent
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Nov 19, 2019
Grant Date -
Oct 19, 2017
app pub date -
Apr 5, 2017
filing date -
Feb 13, 2014
priority date (Note) -
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Abstract
A self-limiting shaped memory alloy device, including a shape memory alloy member, with first and second ends, a first anchor member connected to the first end, an energy contact, a second anchor member connected to the energy contact, an energy source connected in energetic communication to the energy contact, a moveable member connected to the second end, and a biasing member operationally connected to the moveable member for urging the moveable member towards and into physical contact with the second anchor member. The moveable member is in physical contact with the second anchor member and the second end is in energetic communication with the energy contact. Actuation of the energy source energizes the energy contact. Energization of the shape memory alloy member initiates a phase change that urges the moveable member away from the second anchor member. Movement of the moveable member away from the second anchor member disengages the second end from the energy contact.
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