ESCAPEMENT MECHANISM IN PARTICULAR FOR A TIMEPIECE MOVEMENT
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United States of America Patent
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Issued Date -
Oct 4, 2012
app pub date -
Mar 30, 2012
filing date -
Mar 31, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The constant force escapement mechanism in particular for a timepiece movement including a spring balance and an escapement gear connected to a barrel by a going train includes a constant force auxiliary spring (11). It includes an impulsion lever (8) co-operating on the one hand with the escapement gear (1) and on the other hand with control members fixed to the arbor of the spring balance. The constant force auxiliary spring (11) is fixed at one of its ends on a part of the frame of the movement and at its other end to the impulsion lever (8).
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