DK437176A - Ultrasonisk sikkerhedsanleg - Google Patents

Ultrasonisk sikkerhedsanleg

Info

Publication number
DK437176A
DK437176A DK437176A DK437176A DK437176A DK 437176 A DK437176 A DK 437176A DK 437176 A DK437176 A DK 437176A DK 437176 A DK437176 A DK 437176A DK 437176 A DK437176 A DK 437176A
Authority
DK
Denmark
Prior art keywords
safety system
ultrasonic safety
ultrasonic
safety
Prior art date
Application number
DK437176A
Other languages
English (en)
Inventor
E Spirig
Original Assignee
Spirig Ernst
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 Spirig Ernst filed Critical Spirig Ernst
Publication of DK437176A publication Critical patent/DK437176A/da

Links

Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00Burglar, theft or intruder alarms
    • G08B13/16Actuation by interference with mechanical vibrations in air or other fluid
    • G08B13/1609Actuation 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)
DK437176A 1975-09-30 1976-09-29 Ultrasonisk sikkerhedsanleg DK437176A (da)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
DK437176A true DK437176A (da) 1977-03-31

Family

ID=4385455

Family Applications (1)

Application Number Title Priority Date Filing Date
DK437176A DK437176A (da) 1975-09-30 1976-09-29 Ultrasonisk sikkerhedsanleg

Country Status (15)

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

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
SE7608698L (sv) 1977-03-31
AU1659376A (en) 1978-02-09
JPS5243398A (en) 1977-04-05
AT357066B (de) 1980-06-10
NO762694L (da) 1977-03-31
NL7609139A (nl) 1977-04-01
ATA694276A (de) 1979-10-15
DE2641856A1 (de) 1977-04-07
FR2326749A1 (fr) 1977-04-29
FI762481A (da) 1977-03-31
BE846153A (fr) 1976-12-31
CH595668A5 (da) 1978-02-15
GB1554880A (en) 1979-10-31
ZA764670B (en) 1977-07-27
ES451130A1 (es) 1977-08-16
FR2326749B1 (da) 1981-09-25
BR7606514A (pt) 1977-06-28

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