BE687478A - - Google Patents
Info
- Publication number
- BE687478A BE687478A BE687478DA BE687478A BE 687478 A BE687478 A BE 687478A BE 687478D A BE687478D A BE 687478DA BE 687478 A BE687478 A BE 687478A
- Authority
- BE
- Belgium
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/16—Actuation by interference with mechanical vibrations in air or other fluid
- G08B13/1654—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/16—Actuation by interference with mechanical vibrations in air or other fluid
- G08B13/1654—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems
- G08B13/1672—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems using sonic detecting means, e.g. a microphone operating in the audio frequency range
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Burglar Alarm Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US432646A US3364477A (en) | 1965-02-15 | 1965-02-15 | Vault alarm system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE687478A true BE687478A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1967-03-28 |
Family
ID=23717016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE687478D BE687478A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1965-02-15 | 1966-09-28 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3364477A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
| BE (1) | BE687478A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2352351A1 (fr) * | 1976-05-17 | 1977-12-16 | Matsushita Electric Works Ltd | Dispositif de detection pour detecter des vibrations de nature destructrice dans des structures |
| FR2523339A1 (fr) * | 1982-03-12 | 1983-09-16 | Guglielmetti Vg Electro | Dispositif de detection a capteur volumetrique a infra-sons et procede de detection par infra-sons |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1246264A (en) * | 1967-11-30 | 1971-09-15 | Elliott Brothers London Ltd | Alarm system |
| US3579220A (en) * | 1969-03-28 | 1971-05-18 | Automatic Sprinkler Corp | Alarm system |
| US3713127A (en) * | 1970-10-16 | 1973-01-23 | Trodyne Corp | Acoustic emission crack monitor |
| DE3221997A1 (de) * | 1982-06-11 | 1983-12-15 | Securiton AG, 3052 Zollikofen, Bern | Vorrichtung zum ueberwachen von gepanzerten raeumen, insbesondere von tresoren und kassenschraenken, und zum erzeugen eines alarmsignales, wenn ein einbruchversuch unternommen wird |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2806082A (en) * | 1952-10-31 | 1957-09-10 | Woods Edward Farrington | Means for detecting and indicating the activities of bees and conditions in beehives |
| US2799015A (en) * | 1954-12-27 | 1957-07-09 | Cons Electrodynamics Corp | Vibration indicator |
| US3016457A (en) * | 1957-09-30 | 1962-01-09 | Gen Railway Signal Co | Detection means for improperly lubricated journals |
| US3069672A (en) * | 1958-06-10 | 1962-12-18 | Westinghouse Electric Corp | Motor starting noise measuring cirucit |
| US3134970A (en) * | 1961-05-31 | 1964-05-26 | American District Telegraph Co | Alarm system |
| US3147467A (en) * | 1961-09-07 | 1964-09-01 | American District Telegraph Co | Vibration detection vault alarm system |
-
1965
- 1965-02-15 US US432646A patent/US3364477A/en not_active Expired - Lifetime
-
1966
- 1966-09-28 BE BE687478D patent/BE687478A/xx not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2352351A1 (fr) * | 1976-05-17 | 1977-12-16 | Matsushita Electric Works Ltd | Dispositif de detection pour detecter des vibrations de nature destructrice dans des structures |
| FR2523339A1 (fr) * | 1982-03-12 | 1983-09-16 | Guglielmetti Vg Electro | Dispositif de detection a capteur volumetrique a infra-sons et procede de detection par infra-sons |
| US4586031A (en) * | 1982-03-12 | 1986-04-29 | Electronique Guglielmetti V.G. Electronique | Infra-sonic detector, and alarms including same |
Also Published As
| Publication number | Publication date |
|---|---|
| US3364477A (en) | 1968-01-16 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RE20 | Patent expired |
Owner name: AMERICAN DISTRICT TELEGRAPH CY Effective date: 19860928 |