CH948269A4 - - Google Patents
Info
- Publication number
- CH948269A4 CH948269A4 CH948269DD CH948269A4 CH 948269 A4 CH948269 A4 CH 948269A4 CH 948269D D CH948269D D CH 948269DD CH 948269 A4 CH948269 A4 CH 948269A4
- Authority
- CH
- Switzerland
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C21/00—Producing acoustic time signals by electrical means
- G04C21/02—Constructional details
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C21/00—Producing acoustic time signals by electrical means
- G04C21/16—Producing acoustic time signals by electrical means producing the signals at adjustable fixed times
- G04C21/20—Producing acoustic time signals by electrical means producing the signals at adjustable fixed times by closing a contact to ring an electromechanical alarm
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
- G10K9/13—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using electromagnetic driving means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Electromechanical Clocks (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1773812 | 1968-07-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH948269A4 true CH948269A4 (en) | 1971-07-30 |
Family
ID=5701876
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH948269A CH516839A (en) | 1968-07-10 | 1969-06-20 | Tone generator for alarm clocks |
| CH948269D CH948269A4 (en) | 1968-07-10 | 1969-06-20 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH948269A CH516839A (en) | 1968-07-10 | 1969-06-20 | Tone generator for alarm clocks |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3577725A (en) |
| CH (2) | CH516839A (en) |
| FR (1) | FR2012660A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2207690C3 (en) * | 1972-02-18 | 1980-01-31 | Fa. Mueller-Schlenker, 7220 Schwenningen | Battery operated small alarm clock |
| FR2224798B3 (en) * | 1973-04-03 | 1977-01-21 | Kienzle Uhrenfabriken Gmbh | |
| US3950744A (en) * | 1974-06-14 | 1976-04-13 | Projects Unlimited, Inc. | Modular buzzer with diaphragm molded into housing |
| JPS5167761U (en) * | 1974-11-25 | 1976-05-28 | ||
| DE2817762A1 (en) * | 1978-04-22 | 1979-10-31 | Kieninger & Obergfell | CLOCK WITH STRIKING GLASS |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE26817E (en) * | 1967-12-06 | 1970-03-10 | Patrick transistor alarm clock |
-
1969
- 1969-06-20 CH CH948269A patent/CH516839A/en not_active IP Right Cessation
- 1969-06-20 CH CH948269D patent/CH948269A4/xx unknown
- 1969-07-09 FR FR6923380A patent/FR2012660A1/fr not_active Withdrawn
- 1969-07-09 US US840238A patent/US3577725A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CH516839A (en) | 1971-07-30 |
| FR2012660A1 (en) | 1970-03-20 |
| US3577725A (en) | 1971-05-04 |