Horology: time measuring systems or devices – Chronological – With mechanical or electromechanical driven display
Patent
1978-05-03
1980-11-11
Weldon, Ulysses
Horology: time measuring systems or devices
Chronological
With mechanical or electromechanical driven display
368 86, 368155, 368185, G04C 300
Patent
active
042336805
ABSTRACT:
An electric clock with a quartz oscillator, a frequency divider connected following the latter and an output stage driven by the latter, in the output of the output stage there being disposed a single phase stepping motor which acts on a clockwork gear train driving the hour indicator and the minute indicator, as well as a storage battery supplying the operating voltage and a charging circuit for the battery. The single phase stepping motor and the clockwork gear train form a self-contained construction assembly. The quartz oscillator, the frequency divider, the output stage and the charging circuit are arranged on a single printed circuit board. The printed circuit board and the construction assembly are connected with one another via two electrically conducting pins secured on the excitation coil. The printed circuit board and the construction assembly are secured in common on a carrier plate, the latter having an opening for the hour tube and the minute tube, respectively.
REFERENCES:
patent: 2607188 (1952-08-01), Bourquin
patent: 3356876 (1967-12-01), Scholten
patent: 3461663 (1969-08-01), Albringer, Jr. et al.
patent: 3898789 (1975-08-01), Arzi et al.
patent: 3922588 (1975-11-01), Kunzel
patent: 3943695 (1976-03-01), Bauer et al.
patent: 3968417 (1976-07-01), Dials
patent: 3981139 (1976-09-01), Jackle
patent: 4040247 (1977-08-01), Haydon
patent: 4086753 (1978-05-01), Tsuchiya et al.
Kupferschmidt Peter
Schwab Jean-Francois
Sudler Roland
Farber Martin A.
VDO Adolf Schindling AG
Weldon Ulysses
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