NO802797L - Alarmsystem til beskyttelse av glassflater, saerlig av ruter i utstillingsvinduer - Google Patents

Alarmsystem til beskyttelse av glassflater, saerlig av ruter i utstillingsvinduer

Info

Publication number
NO802797L
NO802797L NO802797A NO802797A NO802797L NO 802797 L NO802797 L NO 802797L NO 802797 A NO802797 A NO 802797A NO 802797 A NO802797 A NO 802797A NO 802797 L NO802797 L NO 802797L
Authority
NO
Norway
Prior art keywords
signal
alarm system
route
alarm
ultrasound
Prior art date
Application number
NO802797A
Other languages
English (en)
Norwegian (no)
Inventor
Hartmut Engel
Original Assignee
Siemens 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 Siemens Ag filed Critical Siemens Ag
Publication of NO802797L publication Critical patent/NO802797L/no

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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Glass Compositions (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
NO802797A 1979-09-26 1980-09-22 Alarmsystem til beskyttelse av glassflater, saerlig av ruter i utstillingsvinduer NO802797L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792938968 DE2938968A1 (de) 1979-09-26 1979-09-26 Alarmsystem fuer den schutz von glasflaechen, insbesondere schaufensterscheiben

Publications (1)

Publication Number Publication Date
NO802797L true NO802797L (no) 1981-03-27

Family

ID=6081903

Family Applications (1)

Application Number Title Priority Date Filing Date
NO802797A NO802797L (no) 1979-09-26 1980-09-22 Alarmsystem til beskyttelse av glassflater, saerlig av ruter i utstillingsvinduer

Country Status (5)

Country Link
EP (1) EP0026383A1 (fi)
DE (1) DE2938968A1 (fi)
DK (1) DK405480A (fi)
FI (1) FI803019A (fi)
NO (1) NO802797L (fi)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2143976A (en) * 1983-07-14 1985-02-20 Shorrock Security Systems Ltd Window glass breakage detector apparatus
DE3475126D1 (en) * 1984-04-30 1988-12-15 Fuss Fritz Gmbh & Co Glass breakage detector
DE3434737A1 (de) * 1984-09-21 1986-04-03 Siemens AG, 1000 Berlin und 8000 München Ueberwachungseinrichtung fuer staebe eines zaunes bzw. grobrechens
NL8700110A (nl) * 1987-01-19 1988-08-16 Philips Nv Bewakingsinrichting voorzien van middelen voor het koderen van faseverschuivingen in een door het te bewaken medium getransporteerd meetsignaal.
SE456951B (sv) * 1987-03-06 1988-11-14 Lars Eriksson Larmanordning foeretraedesvis vid en foensterkonstruktion och innefattande minst en saendare av ultraljud
EP1002922A3 (en) * 1998-11-18 2002-03-06 Delphi Technologies, Inc. Device to protect against jamming limbs in power windows in motor vehicles
US6388406B1 (en) * 1999-07-30 2002-05-14 Maritor Light Vehicle Systems, Inc. Method and system for detecting an object in the path of a vehicle power window system using acoustic signals

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2312827A1 (fr) * 1975-05-29 1976-12-24 Matsushita Electric Ind Co Ltd Detecteur de bris de vitre
DE2541764A1 (de) * 1975-09-19 1977-03-24 Philips Patentverwaltung Ueberwachungsanordnung fuer beschaedigungen an groesseren scheiben mit einer ultraschallvorrichtung

Also Published As

Publication number Publication date
DK405480A (da) 1981-03-27
FI803019A (fi) 1981-03-27
EP0026383A1 (de) 1981-04-08
DE2938968A1 (de) 1981-07-02

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