FR2371036A1 - Perfectionnement aux avertisseurs acoustiques electromagnetiques - Google Patents

Perfectionnement aux avertisseurs acoustiques electromagnetiques

Info

Publication number
FR2371036A1
FR2371036A1 FR7734524A FR7734524A FR2371036A1 FR 2371036 A1 FR2371036 A1 FR 2371036A1 FR 7734524 A FR7734524 A FR 7734524A FR 7734524 A FR7734524 A FR 7734524A FR 2371036 A1 FR2371036 A1 FR 2371036A1
Authority
FR
France
Prior art keywords
membrane
alarms
core
advanced acoustic
acoustic electromagnetic
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.)
Granted
Application number
FR7734524A
Other languages
English (en)
French (fr)
Other versions
FR2371036B3 (en:Method
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.)
Industrie Magneti Marelli SRL
Marelli Europe SpA
Original Assignee
Fabbrica Italiana Magneti Marelli SpA
Magneti Marelli SpA
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 Fabbrica Italiana Magneti Marelli SpA, Magneti Marelli SpA filed Critical Fabbrica Italiana Magneti Marelli SpA
Publication of FR2371036A1 publication Critical patent/FR2371036A1/fr
Application granted granted Critical
Publication of FR2371036B3 publication Critical patent/FR2371036B3/fr
Granted 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
    • G10K9/18—Details, e.g. bulbs, pumps, pistons, switches or casings
    • G10K9/22—Mountings; Casings

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Steering Controls (AREA)
  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
FR7734524A 1976-11-11 1977-11-10 Perfectionnement aux avertisseurs acoustiques electromagnetiques Granted FR2371036A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI1976U22511U IT7622511U1 (it) 1976-11-11 1976-11-11 Avvisatore acustico elettromagnetico, in cui la membrana e' fissata al corpo mediante bordatura del corp stesso lungo tutta la periferia della membrana

Publications (2)

Publication Number Publication Date
FR2371036A1 true FR2371036A1 (fr) 1978-06-09
FR2371036B3 FR2371036B3 (en:Method) 1980-08-14

Family

ID=11197241

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7734524A Granted FR2371036A1 (fr) 1976-11-11 1977-11-10 Perfectionnement aux avertisseurs acoustiques electromagnetiques

Country Status (3)

Country Link
DE (2) DE2749526A1 (en:Method)
FR (1) FR2371036A1 (en:Method)
IT (1) IT7622511U1 (en:Method)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4540975A (en) * 1982-04-06 1985-09-10 Marukokeihouki Co., Ltd. Electric horns

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4540975A (en) * 1982-04-06 1985-09-10 Marukokeihouki Co., Ltd. Electric horns

Also Published As

Publication number Publication date
FR2371036B3 (en:Method) 1980-08-14
DE7733976U1 (de) 1979-02-15
DE2749526A1 (de) 1978-05-18
IT7622511U1 (it) 1978-05-11

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