ES451130A1 - Perfeccionamientos introducidos en un sistema de seguridad ultrasonico. - Google Patents

Perfeccionamientos introducidos en un sistema de seguridad ultrasonico.

Info

Publication number
ES451130A1
ES451130A1 ES451130A ES451130A ES451130A1 ES 451130 A1 ES451130 A1 ES 451130A1 ES 451130 A ES451130 A ES 451130A ES 451130 A ES451130 A ES 451130A ES 451130 A1 ES451130 A1 ES 451130A1
Authority
ES
Spain
Prior art keywords
ultrasonic
transmitters
integrity
space
receivers
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
ES451130A
Other languages
English (en)
Spanish (es)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of ES451130A1 publication Critical patent/ES451130A1/es
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
    • G08B13/1609—Actuation by interference with mechanical vibrations in air or other fluid using active vibration detection systems

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
  • Emergency Alarm Devices (AREA)
ES451130A 1975-09-30 1976-09-01 Perfeccionamientos introducidos en un sistema de seguridad ultrasonico. Expired ES451130A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1268675A CH595668A5 (fr) 1975-09-30 1975-09-30

Publications (1)

Publication Number Publication Date
ES451130A1 true ES451130A1 (es) 1977-08-16

Family

ID=4385455

Family Applications (1)

Application Number Title Priority Date Filing Date
ES451130A Expired ES451130A1 (es) 1975-09-30 1976-09-01 Perfeccionamientos introducidos en un sistema de seguridad ultrasonico.

Country Status (15)

Country Link
JP (1) JPS5243398A (fr)
AT (1) AT357066B (fr)
BE (1) BE846153A (fr)
BR (1) BR7606514A (fr)
CH (1) CH595668A5 (fr)
DE (1) DE2641856A1 (fr)
DK (1) DK437176A (fr)
ES (1) ES451130A1 (fr)
FI (1) FI762481A (fr)
FR (1) FR2326749A1 (fr)
GB (1) GB1554880A (fr)
NL (1) NL7609139A (fr)
NO (1) NO762694L (fr)
SE (1) SE7608698L (fr)
ZA (1) ZA764670B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4608674A (en) * 1982-08-06 1986-08-26 American District Telegraph Company Constant range ultrasonic motion detector
CH702416A2 (de) * 2009-12-21 2011-06-30 Glasfreunde Gmbh Einrichtung zur Detektion von Glasbeschädigung bei Isolierverglasung.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3721972A (en) * 1972-02-22 1973-03-20 Seabord Electric Ultrasonic burglar alarm system

Also Published As

Publication number Publication date
NO762694L (fr) 1977-03-31
BR7606514A (pt) 1977-06-28
BE846153A (fr) 1976-12-31
ATA694276A (de) 1979-10-15
ZA764670B (en) 1977-07-27
DE2641856A1 (de) 1977-04-07
GB1554880A (en) 1979-10-31
AT357066B (de) 1980-06-10
NL7609139A (nl) 1977-04-01
SE7608698L (sv) 1977-03-31
AU1659376A (en) 1978-02-09
DK437176A (da) 1977-03-31
FI762481A (fr) 1977-03-31
FR2326749B1 (fr) 1981-09-25
JPS5243398A (en) 1977-04-05
FR2326749A1 (fr) 1977-04-29
CH595668A5 (fr) 1978-02-15

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