Horology: time measuring systems or devices – Chronological – With mechanical or electromechanical driven display
Reexamination Certificate
2007-10-03
2008-10-21
Miska, Vit W (Department: 2833)
Horology: time measuring systems or devices
Chronological
With mechanical or electromechanical driven display
C368S187000, C368S223000
Reexamination Certificate
active
07440359
ABSTRACT:
The timepiece includes a motor which drives at least one hand via a gear reduction train (8, 9, 10, 11, 12, 13), and means (22) for detecting at least one angular reference position of an intermediate wheel (9) forming part of the gear reduction train. The detection means are provided for supplying a signal having a first value when the intermediate wheel is occupying the angular reference position (α) and for supplying a signal having a second value when the intermediate wheel (9) is occupying a second angular position (γ). The timepiece further includes identification (32) and comparison (33) means for determining, on the basis of the signals supplied by the detection means (22), at least once per revolution of the intermediate wheel (9), whether the real position of the intermediate wheel actually corresponds to the theoretical position thereof.
REFERENCES:
patent: 4645357 (1987-02-01), Allgaier et al.
patent: 5270993 (1993-12-01), Besson et al.
patent: 6038523 (2000-03-01), Akahane et al.
patent: 6330207 (2001-12-01), Born et al.
patent: 6454458 (2002-09-01), Born et al.
patent: 7218577 (2007-05-01), Bernasconi et al.
patent: 35 13 961 (1986-10-01), None
patent: 0 841 538 (1998-05-01), None
patent: 0 952 426 (1999-10-01), None
patent: 1 662 343 (2006-05-01), None
patent: 58-131583 (1983-08-01), None
patent: 2003-107174 (2003-04-01), None
European Search Report issued in corresponding application EP 06 12 1684, completed Jan. 12, 2007.
Griffin & Szipl, P.C.
Miska Vit W
The Swatch Group Research and Development Ltd
LandOfFree
Timepiece including means for determining the angular... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Timepiece including means for determining the angular..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Timepiece including means for determining the angular... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3989881