Electromechanical actuator
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United States of America Patent
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-
Dec 31, 2002
Grant Date -
N/A
app pub date -
Feb 18, 2000
filing date -
Feb 19, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electromechanical actuator comprises a body element and an elongated interaction element. One of the elements includes an electromagnet and the other ferromagnetic material or permanent magnet. The elements are arranged with respect to each other so that a rotational motion may be imparted to the interaction element by a magnetic field created by the electromagnet. The interaction element is rotatable between two rotational positions by changing the polarity of energization of the electromagnet. At one rotational position the interaction element is displaceable by an external force applied to one end in a direction along its rotation axis. The interaction element cooperates with the body element in a manner such that they together define the range of axial movement of the interaction element.
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