Device for controlling and correcting the display of the day and date for a watch, and a wrist watch fitted with such a device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 16, 1993
Grant Date -
N/A
app pub date -
Apr 2, 1991
filing date -
Apr 4, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
This device is specified for a wrist watch, comprising at least one bi-directional electric motor, at least one mechanism coupled to this motor to drive a day disk (12) and a date disk (10), and at least one electronic circuit designed to transmit control impulses to this motor. This mechanism comprises a drive wheel (11) coupled to the motor and two date fingers (14, 15) pivoting respectively on two axes (16, 17) borne by said drive wheel (11) to increment, and decrement respectively, the date disk (10). The drive wheel (11) also bears a control wheel (22) for a day star (13) designed to increment, or respectively decrement, the day disk (12) by means of said day star (13). The control wheel (22) for the day star is concentric with the drive wheel (11) and integral with the latter when it rotates in one direction or the other.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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