Horology: time measuring systems or devices – Cases – With protection means
Patent
1995-08-31
1997-09-02
Miska, Vit W.
Horology: time measuring systems or devices
Cases
With protection means
368319, G04B 2900, G04B 3700
Patent
active
056639341
ABSTRACT:
The watertight push button device is intended for example to equip a timepiece, in particular for controlling said timepiece. It comprises a body (2) inside which a cavity (4) of generally oblong shape is arranged, and a push button stem (6) arranged inside the cavity (4) and capable of moving, inside the latter, by a sliding movement when its head (8) is pushed.
In order to prevent a shock at the end of the travel and/or an accidental activation of the push button, the device comprises pneumatic means intended to dampen the sliding movement of the stem (6) inside the body (2). These pneumatic means comprise an annular chamber defined around the stem (6) by a fixed gasket (28) and one of the sealing gaskets (20,22) mounted on the stem. Leakage means are preferably provided between the fixed gasket and the stem or the body.
REFERENCES:
patent: 3362153 (1968-01-01), Wenger
patent: 3453819 (1969-07-01), Simon
patent: 3944030 (1976-03-01), Yokoyama
patent: 3949303 (1976-04-01), Nishimura
patent: 3961147 (1976-06-01), Alonas
patent: 3977178 (1976-08-01), Wenger
patent: 5257247 (1993-10-01), Miche et al.
patent: 5299179 (1994-03-01), Miche et al.
Eray Joseph
Wenger Sylvain
Miska Vit W.
Werthanor S.A.
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