FR722233A - Improvements to sound horns and similar acoustic warning devices - Google Patents

Improvements to sound horns and similar acoustic warning devices

Info

Publication number
FR722233A
FR722233A FR722233DA FR722233A FR 722233 A FR722233 A FR 722233A FR 722233D A FR722233D A FR 722233DA FR 722233 A FR722233 A FR 722233A
Authority
FR
France
Prior art keywords
warning devices
acoustic warning
similar acoustic
sound horns
horns
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
French (fr)
Inventor
Francois Zaionczkowski
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 filed Critical
Application granted granted Critical
Publication of FR722233A publication Critical patent/FR722233A/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
    • G10K9/18—Details, e.g. bulbs, pumps, pistons, switches or casings
    • G10K9/20—Sounding members

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
FR722233D 1931-08-31 1931-08-31 Improvements to sound horns and similar acoustic warning devices Expired FR722233A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR722233T 1931-08-31

Publications (1)

Publication Number Publication Date
FR722233A true FR722233A (en) 1932-03-14

Family

ID=9100543

Family Applications (1)

Application Number Title Priority Date Filing Date
FR722233D Expired FR722233A (en) 1931-08-31 1931-08-31 Improvements to sound horns and similar acoustic warning devices

Country Status (1)

Country Link
FR (1) FR722233A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3230923A (en) * 1962-11-21 1966-01-25 Sonic Dev Corp Sonic pressure wave generator
US3230924A (en) * 1962-12-26 1966-01-25 Sonic Dev Corp Sonic pressure wave generator
US3232267A (en) * 1963-02-25 1966-02-01 Sonic Dev Corp Sonic pressure wave generator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3230923A (en) * 1962-11-21 1966-01-25 Sonic Dev Corp Sonic pressure wave generator
US3230924A (en) * 1962-12-26 1966-01-25 Sonic Dev Corp Sonic pressure wave generator
US3232267A (en) * 1963-02-25 1966-02-01 Sonic Dev Corp Sonic pressure wave generator

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