GB2110446B - Device for monitoring the state of a body capable of conducting sound waves - Google Patents
Device for monitoring the state of a body capable of conducting sound wavesInfo
- Publication number
- GB2110446B GB2110446B GB08230402A GB8230402A GB2110446B GB 2110446 B GB2110446 B GB 2110446B GB 08230402 A GB08230402 A GB 08230402A GB 8230402 A GB8230402 A GB 8230402A GB 2110446 B GB2110446 B GB 2110446B
- Authority
- GB
- United Kingdom
- Prior art keywords
- monitoring
- state
- sound waves
- body capable
- conducting sound
- Prior art date
- 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
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/02—Mechanical actuation
- G08B13/04—Mechanical actuation by breaking of glass
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3142705A DE3142705C2 (en) | 1981-10-28 | 1981-10-28 | Device for monitoring the condition of a body suitable for the transmission of sound waves |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2110446A GB2110446A (en) | 1983-06-15 |
GB2110446B true GB2110446B (en) | 1985-12-04 |
Family
ID=6145012
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08230402A Expired GB2110446B (en) | 1981-10-28 | 1982-10-25 | Device for monitoring the state of a body capable of conducting sound waves |
Country Status (5)
Country | Link |
---|---|
CH (1) | CH659335A5 (en) |
DE (1) | DE3142705C2 (en) |
FR (1) | FR2515399B1 (en) |
GB (1) | GB2110446B (en) |
IT (1) | IT1192514B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19537632C1 (en) * | 1995-10-10 | 1997-04-03 | Dornier Gmbh | Device for monitoring objects |
DE29722430U1 (en) * | 1997-12-18 | 1998-02-26 | Siemens Ag | Room monitoring device |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3134970A (en) * | 1961-05-31 | 1964-05-26 | American District Telegraph Co | Alarm system |
US3569923A (en) * | 1967-10-30 | 1971-03-09 | Us Navy | Adaptive acoustic detector apparatus |
GB1402530A (en) * | 1971-12-10 | 1975-08-13 | Microwave & Electronic Syst | Detecting damage to glass |
FR2313723A1 (en) * | 1975-06-02 | 1976-12-31 | Commissariat Energie Atomique | ABNORMAL PHENOMENON DETECTOR |
JPS52116274A (en) * | 1976-03-25 | 1977-09-29 | Matsushita Electric Ind Co Ltd | Glass plate breakage inspecting apparatus |
DE2721880C3 (en) * | 1976-05-17 | 1981-09-17 | Matsushita Electric Works Ltd., Kadoma, Osaka | Device for the detection of vibrations caused by attempts to damage buildings |
DE2715749C2 (en) * | 1977-04-07 | 1981-12-24 | German Ing.(Grad.) 8060 Dachau Grimm | Method for operating power plants which essentially continuously generate sound vibrations, in particular boiler plants for electrical power plants and a device for carrying out the method |
CH614795A5 (en) * | 1977-05-17 | 1979-12-14 | Securiton Ag | Device for monitoring armoured rooms, in particular strongrooms, and for producing an alarm signal if a break-in attempt is made |
US4139109A (en) * | 1977-07-29 | 1979-02-13 | Murphy Robert P | Load lift assembly for trucks |
GB1577941A (en) * | 1977-08-19 | 1980-10-29 | Rca Corp | Glass break defectors |
DE3002528A1 (en) * | 1980-01-24 | 1981-07-30 | Fritz Fuss Kg, 7470 Albstadt | Window breakage detector for intruder alarm - has piezoelectric element and evaluation circuit combined in flat housing |
GB2080592B (en) * | 1980-07-03 | 1984-05-31 | Rca Security Systems Ltd | Vibration and/or impact detection system |
-
1981
- 1981-10-28 DE DE3142705A patent/DE3142705C2/en not_active Expired
-
1982
- 1982-10-25 GB GB08230402A patent/GB2110446B/en not_active Expired
- 1982-10-25 CH CH6209/82A patent/CH659335A5/en not_active IP Right Cessation
- 1982-10-26 FR FR8217947A patent/FR2515399B1/en not_active Expired
- 1982-10-26 IT IT09522/82A patent/IT1192514B/en active
Also Published As
Publication number | Publication date |
---|---|
GB2110446A (en) | 1983-06-15 |
FR2515399A1 (en) | 1983-04-29 |
CH659335A5 (en) | 1987-01-15 |
IT1192514B (en) | 1988-04-20 |
FR2515399B1 (en) | 1986-10-10 |
DE3142705A1 (en) | 1983-05-11 |
DE3142705C2 (en) | 1986-06-12 |
IT8209522A0 (en) | 1982-10-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19971025 |