Calendar mechanism
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United States of America Patent
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Feb 4, 2014
Grant Date -
Feb 28, 2013
app pub date -
Jul 30, 2012
filing date -
Aug 30, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Calendar mechanism for a timepiece, includes:
- at least one mobile (22; 23) for driving an indicator,a wheel (1) which, during normal operation of the timepiece, is driven in a first direction (S1),a lever (16) for actuating the mobile (22; 23), andfirst and second cams (2, 3) driven by the wheel (1) and controlling the movements of the actuating lever (16), these first and second cams (2, 3) being arranged so that their relative angular position differs depending on the direction of rotation of the wheel (1) so that the movements of the actuating lever (16) cause the mobile (22; 23) to advance periodically during normal operation of the timepiece and do not permit the mobile to advance during backwards time setting of the timepiece causing the wheel to rotate in a second direction (S2) opposite to the first direction (S1).
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