DK616488A - ALARM DEVICE, PRIOR TO A WINDOW CONSTRUCTION - Google Patents

ALARM DEVICE, PRIOR TO A WINDOW CONSTRUCTION

Info

Publication number
DK616488A
DK616488A DK616488A DK616488A DK616488A DK 616488 A DK616488 A DK 616488A DK 616488 A DK616488 A DK 616488A DK 616488 A DK616488 A DK 616488A DK 616488 A DK616488 A DK 616488A
Authority
DK
Denmark
Prior art keywords
prior
alarm device
pulses
window construction
pane
Prior art date
Application number
DK616488A
Other languages
Danish (da)
Other versions
DK616488D0 (en
DK168255B1 (en
Inventor
Lars Eriksson
Original Assignee
Lars Eriksson
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
Priority claimed from SE8700952A external-priority patent/SE456951B/en
Application filed by Lars Eriksson filed Critical Lars Eriksson
Publication of DK616488A publication Critical patent/DK616488A/en
Publication of DK616488D0 publication Critical patent/DK616488D0/en
Application granted granted Critical
Publication of DK168255B1 publication Critical patent/DK168255B1/en

Links

Landscapes

  • Burglar Alarm Systems (AREA)
  • Window Of Vehicle (AREA)

Abstract

For a window structure with at least one glass pane 1, the alarm apparatus comprises at least one transmitter 6 of pulses, e.g. ultrasound, mounted on the glass pane 1 so that it can be subjected to the pulses, and at least one receiver 7 for these pulses mounted on the glass pane 1, so that it receives pulses from the transmitter 6 via the glass pane 1. An alarm is connected to the receiver 7 and can be triggered when the signals received from the pane 1 change, e.g. when the pane 1 is broken. <IMAGE>
DK616488A 1987-03-06 1988-11-04 Alarm apparatus, preferably in a window structure DK168255B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE8700952A SE456951B (en) 1987-03-06 1987-03-06 ALARM DEVICE STEPPED BY A WINDOW CONSTRUCTION AND INCLUDING AT LEAST ONE TRANSMITTER OF ULTRA SOUND
SE8700952 1987-03-06
PCT/SE1988/000105 WO1988006774A1 (en) 1987-03-06 1988-03-07 Alarm apparatus, preferably in a window structure
SE8800105 1988-03-07

Publications (3)

Publication Number Publication Date
DK616488A true DK616488A (en) 1988-11-04
DK616488D0 DK616488D0 (en) 1988-11-04
DK168255B1 DK168255B1 (en) 1994-02-28

Family

ID=26659723

Family Applications (1)

Application Number Title Priority Date Filing Date
DK616488A DK168255B1 (en) 1987-03-06 1988-11-04 Alarm apparatus, preferably in a window structure

Country Status (2)

Country Link
DK (1) DK168255B1 (en)
NO (1) NO171337C (en)

Also Published As

Publication number Publication date
NO884912D0 (en) 1988-11-03
DK616488D0 (en) 1988-11-04
NO171337C (en) 1993-02-24
NO884912L (en) 1988-11-03
NO171337B (en) 1992-11-16
DK168255B1 (en) 1994-02-28

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Legal Events

Date Code Title Description
B1 Patent granted (law 1993)
PBP Patent lapsed

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