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FR1058378A - Perfectionnement aux avertisseurs sonores électromagnétiques - Google Patents

Perfectionnement aux avertisseurs sonores électromagnétiques

Info

Publication number
FR1058378A
FR1058378A FR1058378DA FR1058378A FR 1058378 A FR1058378 A FR 1058378A FR 1058378D A FR1058378D A FR 1058378DA FR 1058378 A FR1058378 A FR 1058378A
Authority
FR
France
Prior art keywords
improvement
electromagnetic horns
horns
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.)
Expired
Application number
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.)
Ducellier et Cie
Original Assignee
Ducellier et Cie
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 Ducellier et Cie filed Critical Ducellier et Cie
Application granted granted Critical
Publication of FR1058378A publication Critical patent/FR1058378A/fr
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
    • G10K9/15—Self-interrupting arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
FR1058378D 1952-06-16 1952-06-16 Perfectionnement aux avertisseurs sonores électromagnétiques Expired FR1058378A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1058378T 1952-06-16

Publications (1)

Publication Number Publication Date
FR1058378A true FR1058378A (fr) 1954-03-16

Family

ID=9598525

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1058378D Expired FR1058378A (fr) 1952-06-16 1952-06-16 Perfectionnement aux avertisseurs sonores électromagnétiques

Country Status (1)

Country Link
FR (1) FR1058378A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2180417A5 (fr) * 1972-04-11 1973-11-23 Lucas Electrical Co Ltd

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2180417A5 (fr) * 1972-04-11 1973-11-23 Lucas Electrical Co Ltd

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