Horology: time measuring systems or devices – Mechanical time base – Mainspring
Reexamination Certificate
2007-01-23
2007-01-23
Miska, Vit W. (Department: 2841)
Horology: time measuring systems or devices
Mechanical time base
Mainspring
C368S206000, C368S214000
Reexamination Certificate
active
11261918
ABSTRACT:
The present invention concerns a mechanical watch (1), preferably of the pocket watch type, wound by a key. More specifically, the present invention concerns a protective device for the aperture (6) allowing access to the winding mechanism of such a watch, particular to the winding stem (7). For this purpose, a moving element (8) is implemented, mounted around the stem (7) and able to move between two end positions, first of all to at least partially block the aperture (6) in normal use and, secondly, to release access to the winding stem (7) in order to wind the watch.
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patent: 672728 (1901-04-01), Bannatyne
patent: 1144827 (1915-06-01), Eberhard
patent: 2575437 (1951-11-01), Ziebart
patent: 2687002 (1954-08-01), Nallinger
patent: 3747328 (1973-07-01), Winkler
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patent: 446859 (2001-07-01), None
patent: WO 1999/047984 (1999-09-01), None
Manufacture Favre & Perret SA
Miska Vit W.
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