FR2277395A1 - Unite acoustique pneumatique - Google Patents

Unite acoustique pneumatique

Info

Publication number
FR2277395A1
FR2277395A1 FR7520649A FR7520649A FR2277395A1 FR 2277395 A1 FR2277395 A1 FR 2277395A1 FR 7520649 A FR7520649 A FR 7520649A FR 7520649 A FR7520649 A FR 7520649A FR 2277395 A1 FR2277395 A1 FR 2277395A1
Authority
FR
France
Prior art keywords
base
base element
pref
membrane
fixed
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
FR7520649A
Other languages
English (en)
French (fr)
Other versions
FR2277395B3 (https=
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.)
STEBEL Sas BELTRAME CO
Original Assignee
STEBEL Sas BELTRAME CO
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 STEBEL Sas BELTRAME CO filed Critical STEBEL Sas BELTRAME CO
Publication of FR2277395A1 publication Critical patent/FR2277395A1/fr
Application granted granted Critical
Publication of FR2277395B3 publication Critical patent/FR2277395B3/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
    • G10K9/02—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)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
FR7520649A 1974-07-01 1975-07-01 Unite acoustique pneumatique Granted FR2277395A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI1974U21475U IT7421475U1 (it) 1974-07-01 1974-07-01 Unità acustica pneumatica con configurazione perfezionata di assiemaggio delle parti

Publications (2)

Publication Number Publication Date
FR2277395A1 true FR2277395A1 (fr) 1976-01-30
FR2277395B3 FR2277395B3 (https=) 1979-02-23

Family

ID=11182365

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7520649A Granted FR2277395A1 (fr) 1974-07-01 1975-07-01 Unite acoustique pneumatique

Country Status (2)

Country Link
FR (1) FR2277395A1 (https=)
IT (1) IT7421475U1 (https=)

Also Published As

Publication number Publication date
FR2277395B3 (https=) 1979-02-23
IT7421475U1 (it) 1976-01-01

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Legal Events

Date Code Title Description
ST Notification of lapse