FR2099714B1 - - Google Patents
Info
- Publication number
- FR2099714B1 FR2099714B1 FR7127982A FR7127982A FR2099714B1 FR 2099714 B1 FR2099714 B1 FR 2099714B1 FR 7127982 A FR7127982 A FR 7127982A FR 7127982 A FR7127982 A FR 7127982A FR 2099714 B1 FR2099714 B1 FR 2099714B1
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
- G04C3/04—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance
- G04C3/06—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using electromagnetic coupling between electric power source and balance
- G04C3/065—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using electromagnetic coupling between electric power source and balance the balance controlling gear-train by means of static switches, e.g. transistor circuits
- G04C3/069—Driving circuits using a single coil for detection and driving purposes
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
- G04C3/08—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically
- G04C3/10—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
- G04C3/08—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically
- G04C3/10—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means
- G04C3/108—Driving circuits
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electric Clocks (AREA)
- Electromechanical Clocks (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6651370A JPS4943347B1 (fr) | 1970-07-31 | 1970-07-31 | |
JP7773270 | 1970-09-07 | ||
JP8497470 | 1970-09-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2099714A1 FR2099714A1 (fr) | 1972-03-17 |
FR2099714B1 true FR2099714B1 (fr) | 1975-02-07 |
Family
ID=27299156
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7127982A Expired FR2099714B1 (fr) | 1970-07-31 | 1971-07-30 |
Country Status (2)
Country | Link |
---|---|
US (1) | US3744233A (fr) |
FR (1) | FR2099714B1 (fr) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1523934A1 (de) * | 1965-06-08 | 1970-03-26 | Junghans Gmbh Geb | Auf elektromagnetischem Wege in Schwingung gehaltene Stimmgabel |
CH491426A (de) * | 1968-02-06 | 1970-02-13 | Reich Robert W | Elektronisch-magnetische Antriebsvorrichtung für Uhren |
-
1971
- 1971-07-30 FR FR7127982A patent/FR2099714B1/fr not_active Expired
- 1971-08-02 US US00168251A patent/US3744233A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US3744233A (en) | 1973-07-10 |
DE2138568A1 (de) | 1972-02-03 |
DE2138568B2 (de) | 1976-04-29 |
FR2099714A1 (fr) | 1972-03-17 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |