FR2515399B1 - DEVICE FOR MONITORING THE STATE OF A BODY CAPABLE OF PROPAGATING SOUND WAVES - Google Patents

DEVICE FOR MONITORING THE STATE OF A BODY CAPABLE OF PROPAGATING SOUND WAVES

Info

Publication number
FR2515399B1
FR2515399B1 FR8217947A FR8217947A FR2515399B1 FR 2515399 B1 FR2515399 B1 FR 2515399B1 FR 8217947 A FR8217947 A FR 8217947A FR 8217947 A FR8217947 A FR 8217947A FR 2515399 B1 FR2515399 B1 FR 2515399B1
Authority
FR
France
Prior art keywords
monitoring
state
sound waves
body capable
propagating 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
Application number
FR8217947A
Other languages
French (fr)
Other versions
FR2515399A1 (en
Inventor
Roland Marki
Kurt Schluep
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Securiton AG
Original Assignee
Securiton AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Securiton AG filed Critical Securiton AG
Publication of FR2515399A1 publication Critical patent/FR2515399A1/en
Application granted granted Critical
Publication of FR2515399B1 publication Critical patent/FR2515399B1/en
Expired legal-status Critical Current

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
FR8217947A 1981-10-28 1982-10-26 DEVICE FOR MONITORING THE STATE OF A BODY CAPABLE OF PROPAGATING SOUND WAVES Expired FR2515399B1 (en)

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
FR2515399A1 FR2515399A1 (en) 1983-04-29
FR2515399B1 true FR2515399B1 (en) 1986-10-10

Family

ID=6145012

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8217947A Expired FR2515399B1 (en) 1981-10-28 1982-10-26 DEVICE FOR MONITORING THE STATE OF A BODY CAPABLE OF PROPAGATING 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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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
GB2110446B (en) 1985-12-04
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
ST Notification of lapse
ST Notification of lapse