Horology: time measuring systems or devices – Time interval – Mechanical stop time type
Reexamination Certificate
2011-03-15
2011-03-15
Miska, Vit W (Department: 2833)
Horology: time measuring systems or devices
Time interval
Mechanical stop time type
C368S106000, C368S140000, C368S190000
Reexamination Certificate
active
07905655
ABSTRACT:
A device comprises a basic clock movement MB whose time indicators are driven by a first barrel connected to a first wheelwork and a first regulator organ, and an autonomous chronograph module MCA whose indicators are driven by a second barrel independent from the first, connected to a second wheelwork and a second regulator organ. The chronograph module is exclusively composed of mechanical elements. The frequency of oscillation supplied by its regulator is equal N times the frequency of oscillation supplied by the regulator of the base movement, with the coefficient N being definable according to a specific application of the chronograph, so that any chronograph module thus previously defined can work with the same base movement. The chronograph regulator remains constantly engaged with the corresponding wheelwork. The chronograph module allows a time interval to be read with a minimum precision of a hundredth of second. The organs of the base movement and of the chronograph module are arranged in such a way that in assembled state, the height and overall diameter do not exceed 7.75 mm and 30 mm respectively, the dimensions of the chronograph itself being not greater than 4 mm (height) and 30 mm (diameter) when its elements are mounted on a bottom plate, so that the device can advantageously be integrated in the case of a wrist-watch and affords an aesthetic exterior.
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Machine Translation of EP 335054, Tschudin.
Machine Translation of EP 620509 Caminiti.
LVMH Swiss Manufactures SA
Miska Vit W
Pearne & Gordon LLP
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