Horology: time measuring systems or devices – Mechanical time base – Mainspring
Reexamination Certificate
2007-10-30
2007-10-30
Miska, Vit W (Department: 2833)
Horology: time measuring systems or devices
Mechanical time base
Mainspring
C368S207000
Reexamination Certificate
active
11695701
ABSTRACT:
The mechanism includes, mounted to rotate freely on an arbour6, a driving wheel (5) driven by an oscillating drive pinion (3) and a driven wheel (7) meshed with the first wheel set (1) of a kinematic chain and comprising a dome (11) for housing a coupling device (10) comprising at least one bent locking arm (12) one end (14) of which has a pivoting point (14a, 14b) on the driving wheel (5) and the other end (16) of which has a point of abutment (16a) against the inner wall (2) of the dome (11) of the driven wheel (7) via the action of a spring (20) integral with said arm (12). The pivoting point (14b) preferably moves along a cam (21).Application to automatic winding by an oscillating weight.
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European Search Report issued in corresponding application No. EP 06 00 7364 completed Jan. 26, 2007.
Conus Thierry
Helfer Jean-Luc
ETA SA Manufacture Horlogėre Suisse
Griffin & Szipi, P.C.
Miska Vit W
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