Horology: time measuring systems or devices – With calendar indicator – Winding and setting
Reexamination Certificate
2006-12-22
2008-08-05
Luebke, Renee S. (Department: 2833)
Horology: time measuring systems or devices
With calendar indicator
Winding and setting
C368S035000
Reexamination Certificate
active
07408844
ABSTRACT:
A calendar watch is arranged to allow time-setting to be carried out without this operation altering the state of the calendar mechanism at the passage to midnight. This mechanism, which is of the instantaneous date type, includes a large lever (2) loaded by a spring and wound by a spiral shaped cam (11) and a click (20) released at midnight by a flexible finger (12) of a 24-hour wheel (10). The mechanism prevents any transmission of movement from the 24 hour wheel to the date wheel set, when they are set in the active position by the winding stem (33) pulled out into the time-setting position of the watch. A pivoting isolator (30), which, in its active position, abuts against the click (20) prevents the click from releasing the lever (2).
REFERENCES:
patent: 3748848 (1973-07-01), Laesser et al.
patent: 3866407 (1975-02-01), Wuthrich
patent: 7218576 (2007-05-01), Bron
patent: 2003/0189875 (2003-10-01), Wilmouth
patent: 1018 (1889-05-01), None
patent: 5900 (1892-12-01), None
patent: 2 060 056 (1972-06-01), None
patent: 2 369 897 (2002-06-01), None
European Search Report issued in corresponding application No. EP 05 11 2793 completed Nov. 13, 2006.
Goeller Eric
Zaugg Alain
Griffin & Szipl, P.C.
Luebke Renee S.
Montres Breguet S.A.
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