FR2360955A1 - Avertisseur sonore alimente en courant alternatif a frequence variable - Google Patents

Avertisseur sonore alimente en courant alternatif a frequence variable

Info

Publication number
FR2360955A1
FR2360955A1 FR7535123A FR7535123A FR2360955A1 FR 2360955 A1 FR2360955 A1 FR 2360955A1 FR 7535123 A FR7535123 A FR 7535123A FR 7535123 A FR7535123 A FR 7535123A FR 2360955 A1 FR2360955 A1 FR 2360955A1
Authority
FR
France
Prior art keywords
electromagnet
horn
supplied
spring
variable frequency
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
FR7535123A
Other languages
English (en)
French (fr)
Other versions
FR2360955B1 (enExample
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.)
TRANSVAL SA
Original Assignee
TRANSVAL SA
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 TRANSVAL SA filed Critical TRANSVAL SA
Priority to FR7535123A priority Critical patent/FR2360955A1/fr
Publication of FR2360955A1 publication Critical patent/FR2360955A1/fr
Application granted granted Critical
Publication of FR2360955B1 publication Critical patent/FR2360955B1/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
    • G10K1/00—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs
    • G10K1/06—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube
    • G10K1/062—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube electrically operated

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
FR7535123A 1975-11-18 1975-11-18 Avertisseur sonore alimente en courant alternatif a frequence variable Granted FR2360955A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7535123A FR2360955A1 (fr) 1975-11-18 1975-11-18 Avertisseur sonore alimente en courant alternatif a frequence variable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7535123A FR2360955A1 (fr) 1975-11-18 1975-11-18 Avertisseur sonore alimente en courant alternatif a frequence variable

Publications (2)

Publication Number Publication Date
FR2360955A1 true FR2360955A1 (fr) 1978-03-03
FR2360955B1 FR2360955B1 (enExample) 1978-12-29

Family

ID=9162542

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7535123A Granted FR2360955A1 (fr) 1975-11-18 1975-11-18 Avertisseur sonore alimente en courant alternatif a frequence variable

Country Status (1)

Country Link
FR (1) FR2360955A1 (enExample)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2278406A (en) * 1939-06-13 1942-03-31 Connecticut Telephone & Elec Striker-actuating mechanism for audible signals

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2278406A (en) * 1939-06-13 1942-03-31 Connecticut Telephone & Elec Striker-actuating mechanism for audible signals

Also Published As

Publication number Publication date
FR2360955B1 (enExample) 1978-12-29

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Legal Events

Date Code Title Description
ST Notification of lapse