FR2191180A1 - - Google Patents

Info

Publication number
FR2191180A1
FR2191180A1 FR7323346A FR7323346A FR2191180A1 FR 2191180 A1 FR2191180 A1 FR 2191180A1 FR 7323346 A FR7323346 A FR 7323346A FR 7323346 A FR7323346 A FR 7323346A FR 2191180 A1 FR2191180 A1 FR 2191180A1
Authority
FR
France
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.)
Granted
Application number
FR7323346A
Other languages
French (fr)
Other versions
FR2191180B1 (en
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2191180A1 publication Critical patent/FR2191180A1/fr
Application granted granted Critical
Publication of FR2191180B1 publication Critical patent/FR2191180B1/fr
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
    • G08B13/16—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
    • G08B13/1681—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems using infrasonic detecting means, e.g. a microphone operating below the audible frequency range

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Burglar Alarm Systems (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
FR7323346A 1972-06-28 1973-06-26 Expired FR2191180B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7208873A NL7208873A (en) 1972-06-28 1972-06-28

Publications (2)

Publication Number Publication Date
FR2191180A1 true FR2191180A1 (en) 1974-02-01
FR2191180B1 FR2191180B1 (en) 1976-09-17

Family

ID=19816393

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7323346A Expired FR2191180B1 (en) 1972-06-28 1973-06-26

Country Status (5)

Country Link
JP (1) JPS4986036A (en)
DE (1) DE2329593A1 (en)
FR (1) FR2191180B1 (en)
IT (1) IT986585B (en)
NL (1) NL7208873A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2560701A1 (en) * 1984-03-05 1985-09-06 Sogesec Sarl DIFFERENTIAL PRESSURE ACCESS DETECTOR

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1267874A (en) * 1960-06-14 1961-07-28 Wattson Sa Method and device for detecting crossing locating
FR1576035A (en) * 1967-08-24 1969-07-25

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1267874A (en) * 1960-06-14 1961-07-28 Wattson Sa Method and device for detecting crossing locating
FR1576035A (en) * 1967-08-24 1969-07-25

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2560701A1 (en) * 1984-03-05 1985-09-06 Sogesec Sarl DIFFERENTIAL PRESSURE ACCESS DETECTOR
EP0159218A1 (en) * 1984-03-05 1985-10-23 Sogesec Differential pressure access detector

Also Published As

Publication number Publication date
DE2329593A1 (en) 1974-01-10
IT986585B (en) 1975-01-30
NL7208873A (en) 1974-01-02
JPS4986036A (en) 1974-08-17
FR2191180B1 (en) 1976-09-17

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Legal Events

Date Code Title Description
ST Notification of lapse