Regulating system for a mechanical watch
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United States of America Patent
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Mar 5, 2019
Grant Date -
Mar 10, 2016
app pub date -
Jul 22, 2014
filing date -
Aug 5, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
Regulating members for a mechanical timepiece, specifically a system based on magnetic interaction between a resonator, in a form of a tuning fork for example, and an escape wheel, as a magnetic escapement. In the system plural areas of magnetic interaction between the resonator and the escape wheel are arranged such that torques produced at the escape wheel by the interactions compensate each other if the escape wheel is not synchronized at the frequency of the resonator. This results in negligible torque in the escape wheel when the escape wheel rotates slowly in a direction of an arrow or opposite direction. This allows the timepiece to start with a low mainspring torque and without any start procedure or device and provides better resistance of the timepiece against a loss of synchronization in event of a shock.
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