FR589832A - Appareil avertisseur sonore à membrane - Google Patents

Appareil avertisseur sonore à membrane

Info

Publication number
FR589832A
FR589832A FR589832DA FR589832A FR 589832 A FR589832 A FR 589832A FR 589832D A FR589832D A FR 589832DA FR 589832 A FR589832 A FR 589832A
Authority
FR
France
Prior art keywords
diaphragm
warning device
audible warning
audible
warning
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)
French (fr)
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.)
Fried Krupp Germaniawerft AG
Original Assignee
Fried Krupp Germaniawerft AG
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
Priority claimed from DEK87778D external-priority patent/DE414236C/de
Application filed by Fried Krupp Germaniawerft AG filed Critical Fried Krupp Germaniawerft AG
Application granted granted Critical
Publication of FR589832A publication Critical patent/FR589832A/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
    • G10K9/02—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers driven by gas; e.g. suction operated
    • G10K9/04—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers driven by gas; e.g. suction operated by compressed gases, e.g. compressed air

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Details Of Valves (AREA)
  • Reciprocating Pumps (AREA)
FR589832D 1923-12-01 1924-11-28 Appareil avertisseur sonore à membrane Expired FR589832A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEK87778D DE414236C (de) 1923-12-01 1923-12-01 Membranschallapparat, der durch ein Druckmittel betrieben wird, dessen Temperatur von der Aussenluft wesentlich abweicht
DEK91247D DE418307C (de) 1923-12-01 1924-10-10 Membran-Schallapparat

Publications (1)

Publication Number Publication Date
FR589832A true FR589832A (fr) 1925-06-05

Family

ID=27664428

Family Applications (1)

Application Number Title Priority Date Filing Date
FR589832D Expired FR589832A (fr) 1923-12-01 1924-11-28 Appareil avertisseur sonore à membrane

Country Status (4)

Country Link
AT (1) AT102808B (da)
DE (1) DE418307C (da)
DK (1) DK35191C (da)
FR (1) FR589832A (da)

Also Published As

Publication number Publication date
DK35191C (da) 1925-10-26
DE418307C (de) 1925-09-02
AT102808B (de) 1926-03-25

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