CH600420B5 - - Google Patents
Info
- Publication number
- CH600420B5 CH600420B5 CH91574A CH91574A CH600420B5 CH 600420 B5 CH600420 B5 CH 600420B5 CH 91574 A CH91574 A CH 91574A CH 91574 A CH91574 A CH 91574A CH 600420 B5 CH600420 B5 CH 600420B5
- Authority
- CH
- Switzerland
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G19/00—Electric power supply circuits specially adapted for use in electronic time-pieces
- G04G19/10—Arrangements for supplying back-up power
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C15/00—Clocks driven by synchronous motors
- G04C15/0054—Clocks driven by synchronous motors with power-reserve
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Electric Clocks (AREA)
- Electromechanical Clocks (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19732309598 DE2309598A1 (de) | 1973-02-26 | 1973-02-26 | Antrieb fuer schaltuhren oder dergleichen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH600420B5 true CH600420B5 (it) | 1978-06-15 |
Family
ID=5873157
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH91574D CH91574A4 (it) | 1973-02-26 | 1974-01-23 | |
| CH91574A CH600420B5 (it) | 1973-02-26 | 1974-01-23 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH91574D CH91574A4 (it) | 1973-02-26 | 1974-01-23 |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US3922588A (it) |
| AT (1) | AT336126B (it) |
| BE (1) | BE811565A (it) |
| CA (1) | CA1018249A (it) |
| CH (2) | CH91574A4 (it) |
| DE (1) | DE2309598A1 (it) |
| FR (1) | FR2219514B1 (it) |
| GB (1) | GB1447906A (it) |
| IT (1) | IT1003564B (it) |
| NL (1) | NL7402513A (it) |
| SE (1) | SE398174B (it) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4099372A (en) * | 1977-04-29 | 1978-07-11 | Rca Corporation | Timekeeping apparatus with power line dropout provisions |
| US4233680A (en) * | 1978-05-03 | 1980-11-11 | Vdo Adolf Schindling Ag | Electric clock |
| GB2130449A (en) * | 1982-11-16 | 1984-05-31 | Schlumberger Electronics | Time switches |
| DE3304386C1 (de) * | 1983-02-09 | 1984-03-29 | Diehl GmbH & Co, 8500 Nürnberg | Netzbetriebene elektronische Uhr,vorzugsweise Schaltuhr mit einer Gangreserve |
| JPS59188347A (ja) * | 1983-04-08 | 1984-10-25 | 株式会社東芝 | 無停電電源装置 |
| DE3850831T2 (de) * | 1987-09-21 | 1994-11-10 | Seiko Epson Corp | Elektronische Analog-Uhr. |
| US4956826A (en) * | 1989-03-17 | 1990-09-11 | Master Free Time, Inc. | Multi-year time clock having automatic daylight saving time compensator |
| DE3910039A1 (de) * | 1989-03-28 | 1990-10-04 | Legrand Gmbh | Schaltungseinrichtung zur ueberbrueckung von ausfaellen einer primaeren energiequelle, z. b. wechselstromnetz, fuer kontinuierlich redundant unterbrechungsfreie speisung von elektronischen regel- und steuerungsgeraeten, insbesondere schaltuhren |
| US5339296A (en) * | 1992-06-03 | 1994-08-16 | General Time Corporation | Electric alarm clock with battery back-up |
| JPH0862356A (ja) * | 1994-08-24 | 1996-03-08 | Asahi Optical Co Ltd | 電子時計 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3293445A (en) * | 1962-10-01 | 1966-12-20 | Rca Corp | Power supply circuit |
| US3302083A (en) * | 1962-10-25 | 1967-01-31 | Matsushita Electric Ind Co Ltd | Variable synchronous motors which rotate at a self-determined rotational speed |
| DE1261242C2 (de) * | 1964-06-05 | 1975-10-02 | Fa. Diehl, 8500 Nürnberg | Zeigerwerksantrieb fuer eine batteriegespeiste, selbstaendige uhr mit einem kommutatorlosen motor |
| US3321688A (en) * | 1965-10-14 | 1967-05-23 | Lau Blower Co | A.c./d.c. fed transistorized induction motors |
| US3756010A (en) * | 1970-08-11 | 1973-09-04 | Matsushita Electric Works Ltd | Magnetic-induction clock |
| US3737746A (en) * | 1972-04-19 | 1973-06-05 | Gen Time Corp | Quartz crystal controlled stepper motor |
-
1973
- 1973-02-26 DE DE19732309598 patent/DE2309598A1/de active Pending
-
1974
- 1974-01-21 AT AT49774A patent/AT336126B/de not_active IP Right Cessation
- 1974-01-23 CH CH91574D patent/CH91574A4/xx unknown
- 1974-01-23 CH CH91574A patent/CH600420B5/xx not_active IP Right Cessation
- 1974-02-13 GB GB652974A patent/GB1447906A/en not_active Expired
- 1974-02-20 IT IT48599/74A patent/IT1003564B/it active
- 1974-02-21 SE SE7402261A patent/SE398174B/xx unknown
- 1974-02-21 US US444687A patent/US3922588A/en not_active Expired - Lifetime
- 1974-02-22 CA CA193,313A patent/CA1018249A/en not_active Expired
- 1974-02-25 NL NL7402513A patent/NL7402513A/xx unknown
- 1974-02-26 FR FR7406437A patent/FR2219514B1/fr not_active Expired
- 1974-02-26 BE BE141378A patent/BE811565A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL7402513A (it) | 1974-08-28 |
| BE811565A (fr) | 1974-06-17 |
| AT336126B (de) | 1977-04-25 |
| DE2309598A1 (de) | 1974-09-05 |
| IT1003564B (it) | 1976-06-10 |
| US3922588A (en) | 1975-11-25 |
| CH91574A4 (it) | 1977-07-29 |
| FR2219514B1 (it) | 1977-09-23 |
| GB1447906A (en) | 1976-09-02 |
| SE398174B (sv) | 1977-12-05 |
| CA1018249A (en) | 1977-09-27 |
| ATA49774A (de) | 1976-08-15 |
| FR2219514A1 (it) | 1974-09-20 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |