Horology: time measuring systems or devices – Power supply details
Patent
1986-02-21
1986-12-30
Roskoski, Bernard
Horology: time measuring systems or devices
Power supply details
368204, G04B 100
Patent
active
046325719
ABSTRACT:
The module comprises a first printed circuit (1) on one end portion (51) of a flexible support (50), and a second printed circuit (40) housed in a recess (53) provided in the watch plate (22). The first circuit has four conductive areas (2, 3, 8, 9). The second circuit has one side (40b) a first pair of conductive areas (41, 42) and on its other side (40a) a second pair of conductive areas (47,48). Two of the conductive areas (2, 3) of the first circuit are connected to the electrodes of a cell while its two other conductive areas (8, 9) are connected to the supply terminals of an electronic circuit. The second circuit (40) may be placed in the recess (53) in two different positions, identified by a pair of symbols. Each position corresponds to a different cell polarity. Upon folding down said end portion (51) of the flexible support (50) on the watch plate (22) after having placed the second circuit (40) in the position corresponding to the polarity of the cell, the conductive areas of the two printed circuits engage one another to supply the circuit with a voltage of correct polarity.
REFERENCES:
patent: 4251604 (1981-02-01), Umemoto
patent: 4362396 (1982-12-01), Perrot
patent: 4478524 (1984-10-01), Saitoh et al.
ETA S.A. Fabriques D'Ebauches
Roskoski Bernard
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