Electronic watch with a device for controlling and driving the day of the month
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 16, 1982
Grant Date -
N/A
app pub date -
Jun 28, 1979
filing date -
Jul 10, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electronic watch comprising a device for controlling and driving the day of the month disc, wherein the wheel train supplies the energy necessary for moving the day of the month disc, but does not determine the instant of the jump, which may be initiated at any moment by an electrical signal, independently of the position of the wheel train. The device comprises a mechanism driven by the wheel train and arranged so as to disengage when the moving bodies of the wheel train, controlling the display, turn continuously in clockwise direction and to re-engage when said moving bodies turn in anti-clockwise direction. A control circuit determines, in a portion of the driving cycle in an anti-clockwise direction of rotation with a rapid rate, the jump of the display disc of the day of the month mechanism.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully