BR7606514A - IMPROVEMENT IN THE ULTRASONIC SAFETY SYSTEM - Google Patents

IMPROVEMENT IN THE ULTRASONIC SAFETY SYSTEM

Info

Publication number
BR7606514A
BR7606514A BR7606514A BR7606514A BR7606514A BR 7606514 A BR7606514 A BR 7606514A BR 7606514 A BR7606514 A BR 7606514A BR 7606514 A BR7606514 A BR 7606514A BR 7606514 A BR7606514 A BR 7606514A
Authority
BR
Brazil
Prior art keywords
improvement
safety system
ultrasonic safety
ultrasonic
safety
Prior art date
Application number
BR7606514A
Other languages
Portuguese (pt)
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 BR7606514A publication Critical patent/BR7606514A/en

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)
BR7606514A 1975-09-30 1976-09-29 IMPROVEMENT IN THE ULTRASONIC SAFETY SYSTEM BR7606514A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
BR7606514A true BR7606514A (en) 1977-06-28

Family

ID=4385455

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7606514A BR7606514A (en) 1975-09-30 1976-09-29 IMPROVEMENT IN THE ULTRASONIC SAFETY SYSTEM

Country Status (15)

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

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 (en) * 2009-12-21 2011-06-30 Glasfreunde Gmbh Means for the detection of glass damage during glazing.

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 (en) 1977-03-31
ES451130A1 (en) 1977-08-16
GB1554880A (en) 1979-10-31
FR2326749B1 (en) 1981-09-25
AU1659376A (en) 1978-02-09
AT357066B (en) 1980-06-10
CH595668A5 (en) 1978-02-15
DK437176A (en) 1977-03-31
FI762481A (en) 1977-03-31
JPS5243398A (en) 1977-04-05
FR2326749A1 (en) 1977-04-29
SE7608698L (en) 1977-03-31
ATA694276A (en) 1979-10-15
BE846153A (en) 1976-12-31
DE2641856A1 (en) 1977-04-07
ZA764670B (en) 1977-07-27
NL7609139A (en) 1977-04-01

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