GB1182210A - Improvements in and relating to Acoustic Warning Devices. - Google Patents

Improvements in and relating to Acoustic Warning Devices.

Info

Publication number
GB1182210A
GB1182210A GB1105768A GB1105768A GB1182210A GB 1182210 A GB1182210 A GB 1182210A GB 1105768 A GB1105768 A GB 1105768A GB 1105768 A GB1105768 A GB 1105768A GB 1182210 A GB1182210 A GB 1182210A
Authority
GB
United Kingdom
Prior art keywords
housing
diaphragm
acoustic warning
shaped
cover
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.)
Expired
Application number
GB1105768A
Other languages
English (en)
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.)
NOVI PB
Original Assignee
NOVI PB
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 NOVI PB filed Critical NOVI PB
Publication of GB1182210A publication Critical patent/GB1182210A/en
Expired 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
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
    • G10K9/13—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using electromagnetic driving means

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electromechanical Clocks (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
GB1105768A 1967-04-04 1968-03-07 Improvements in and relating to Acoustic Warning Devices. Expired GB1182210A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR101394A FR1526109A (fr) 1967-04-04 1967-04-04 Avertisseur sonore

Publications (1)

Publication Number Publication Date
GB1182210A true GB1182210A (en) 1970-02-25

Family

ID=8628113

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1105768A Expired GB1182210A (en) 1967-04-04 1968-03-07 Improvements in and relating to Acoustic Warning Devices.

Country Status (6)

Country Link
BE (1) BE710559A (ja)
DE (1) DE1766054B1 (ja)
ES (1) ES352073A1 (ja)
FR (1) FR1526109A (ja)
GB (1) GB1182210A (ja)
NL (1) NL6802838A (ja)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE492932C (de) * 1930-02-27 Westfaelische Metall Ind A G Akustisches Signalinstrument
DE410846C (de) * 1922-10-18 1925-03-06 Jakob Kertel Elektrische Hupe mit einer einen Luftraum einschliessenden, von einem Elektromagneten beeinflussten Doppelmembran
DE541535C (de) * 1929-05-11 1932-01-13 Weber Kranz & Co G M B H Verfahren zur Herstellung einer hydraulisch erhaertenden UEberzugsmasse aus Zement und bitumenhaltigem Schiefer
FR1226231A (fr) * 1958-07-16 1960-07-08 Magneti Marelli Spa Avertisseur électro-acoustique, en particulier pour véhicules automobiles

Also Published As

Publication number Publication date
ES352073A1 (es) 1969-06-16
BE710559A (ja) 1968-06-17
DE1766054B1 (de) 1971-07-01
FR1526109A (fr) 1968-05-24
NL6802838A (ja) 1968-10-07

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee