DE2552744A1 - Akustische warneinrichtung - Google Patents

Akustische warneinrichtung

Info

Publication number
DE2552744A1
DE2552744A1 DE19752552744 DE2552744A DE2552744A1 DE 2552744 A1 DE2552744 A1 DE 2552744A1 DE 19752552744 DE19752552744 DE 19752552744 DE 2552744 A DE2552744 A DE 2552744A DE 2552744 A1 DE2552744 A1 DE 2552744A1
Authority
DE
Germany
Prior art keywords
warning device
switch
siren
microswitch
acoustic signals
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.)
Withdrawn
Application number
DE19752552744
Other languages
German (de)
English (en)
Inventor
Carlo Bertini
Guiseppe Carena
Pietro Augusto Iaci
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.)
TDK Micronas GmbH
Original Assignee
Deutsche ITT Industries GmbH
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 Deutsche ITT Industries GmbH filed Critical Deutsche ITT Industries GmbH
Publication of DE2552744A1 publication Critical patent/DE2552744A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K7/00—Sirens
    • G10K7/02—Sirens in which the sound-producing member is rotated manually or by a motor
    • G10K7/04—Sirens in which the sound-producing member is rotated manually or by a motor by an electric motor

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Emergency Alarm Devices (AREA)
  • Alarm Systems (AREA)
DE19752552744 1974-12-11 1975-11-25 Akustische warneinrichtung Withdrawn DE2552744A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT7059974A IT1030082B (it) 1974-12-11 1974-12-11 Apparecchio a strena portalle segnalatore d allarme

Publications (1)

Publication Number Publication Date
DE2552744A1 true DE2552744A1 (de) 1976-06-16

Family

ID=11314121

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19752552744 Withdrawn DE2552744A1 (de) 1974-12-11 1975-11-25 Akustische warneinrichtung

Country Status (8)

Country Link
BE (1) BE836516A (it)
CH (1) CH607176A5 (it)
DE (1) DE2552744A1 (it)
ES (1) ES443363A1 (it)
FR (1) FR2294494A1 (it)
GB (1) GB1480689A (it)
IT (1) IT1030082B (it)
NL (1) NL7514250A (it)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3103370A1 (de) * 1981-01-29 1982-11-11 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Tragbarer hausnotrufsender
US7063040B2 (en) * 2004-04-20 2006-06-20 David Terry Woods Portable air horn apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3103370A1 (de) * 1981-01-29 1982-11-11 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Tragbarer hausnotrufsender
US7063040B2 (en) * 2004-04-20 2006-06-20 David Terry Woods Portable air horn apparatus

Also Published As

Publication number Publication date
GB1480689A (en) 1977-07-20
FR2294494B3 (it) 1979-09-21
IT1030082B (it) 1979-03-30
FR2294494A1 (fr) 1976-07-09
NL7514250A (nl) 1976-06-15
CH607176A5 (it) 1978-11-30
ES443363A1 (es) 1977-04-16
BE836516A (nl) 1976-06-11

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Legal Events

Date Code Title Description
OGA New person/name/address of the applicant
OGA New person/name/address of the applicant
8139 Disposal/non-payment of the annual fee