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
Application number
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 filed Critical
Publication of BE687478A publication Critical patent/BE687478A/xx

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)
BE687478D 1965-02-15 1966-09-28 BE687478A (instruction)

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 (instruction) 1967-03-28

Family

ID=23717016

Family Applications (1)

Application Number Title Priority Date Filing Date
BE687478D BE687478A (instruction) 1965-02-15 1966-09-28

Country Status (2)

Country Link
US (1) US3364477A (instruction)
BE (1) BE687478A (instruction)

Cited By (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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

Publication Publication Date Title
JPS4220850Y1 (instruction)
JPS4516724Y1 (instruction)
JPS439046Y1 (instruction)
JPS4840904B1 (instruction)
JPS4413933Y1 (instruction)
JPS4324313Y1 (instruction)
JPS4318714Y1 (instruction)
JPS4221016Y1 (instruction)
BE666825A (instruction)
BE674076A (instruction)
NL6616971A (instruction)
NL6616096A (instruction)
BE691365A (instruction)
BE683290A (instruction)
BE675431A (instruction)
BE675322A (instruction)
BE675298A (instruction)
BE675258A (instruction)
BE675108A (instruction)
BE675049A (instruction)
BE675014A (instruction)
BE675002A (instruction)
BE674955A (instruction)
BE674869A (instruction)
BE674814A (instruction)

Legal Events

Date Code Title Description
RE20 Patent expired

Owner name: AMERICAN DISTRICT TELEGRAPH CY

Effective date: 19860928