IT1047018B - Avvisatore acustico pneumatico con cornetti accoppiati avvolti a chiocciola e complanari - Google Patents

Avvisatore acustico pneumatico con cornetti accoppiati avvolti a chiocciola e complanari

Info

Publication number
IT1047018B
IT1047018B IT4958974A IT4958974A IT1047018B IT 1047018 B IT1047018 B IT 1047018B IT 4958974 A IT4958974 A IT 4958974A IT 4958974 A IT4958974 A IT 4958974A IT 1047018 B IT1047018 B IT 1047018B
Authority
IT
Italy
Prior art keywords
warning device
spiral coils
acoustic warning
pneumatic acoustic
spirals
Prior art date
Application number
IT4958974A
Other languages
English (en)
Italian (it)
Original Assignee
Frigo D
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 Frigo D filed Critical Frigo D
Priority to IT4958974A priority Critical patent/IT1047018B/it
Priority to BR810174A priority patent/BR7408101A/pt
Priority to DE19752501584 priority patent/DE2501584C3/de
Priority to FR7506761A priority patent/FR2273334A2/fr
Application granted granted Critical
Publication of IT1047018B publication Critical patent/IT1047018B/it

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
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/28—Sound-focusing or directing, e.g. scanning using reflection, e.g. parabolic reflectors
    • 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)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Geophysics And Detection Of Objects (AREA)
IT4958974A 1974-03-25 1974-03-25 Avvisatore acustico pneumatico con cornetti accoppiati avvolti a chiocciola e complanari IT1047018B (it)

Priority Applications (4)

Application Number Priority Date Filing Date Title
IT4958974A IT1047018B (it) 1974-03-25 1974-03-25 Avvisatore acustico pneumatico con cornetti accoppiati avvolti a chiocciola e complanari
BR810174A BR7408101A (pt) 1974-03-25 1974-09-30 Avisador acustico pneumatico com cornetas em caracol niveladas
DE19752501584 DE2501584C3 (de) 1974-03-25 1975-01-16 Pneumatisch betriebene akustische Signalvorrichtung
FR7506761A FR2273334A2 (en) 1974-03-25 1975-03-04 Pneumatic double horn for vehicles - has air admitted through valve and collected water expelled through duct

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT4958974A IT1047018B (it) 1974-03-25 1974-03-25 Avvisatore acustico pneumatico con cornetti accoppiati avvolti a chiocciola e complanari

Publications (1)

Publication Number Publication Date
IT1047018B true IT1047018B (it) 1980-09-10

Family

ID=11271103

Family Applications (1)

Application Number Title Priority Date Filing Date
IT4958974A IT1047018B (it) 1974-03-25 1974-03-25 Avvisatore acustico pneumatico con cornetti accoppiati avvolti a chiocciola e complanari

Country Status (4)

Country Link
BR (1) BR7408101A (xx)
DE (1) DE2501584C3 (xx)
FR (1) FR2273334A2 (xx)
IT (1) IT1047018B (xx)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3812096A1 (de) * 1988-04-12 1989-10-26 Hella Kg Hueck & Co Signalhorn, insbesondere fuer kraftfahrzeuge

Also Published As

Publication number Publication date
FR2273334B2 (xx) 1977-12-09
DE2501584A1 (de) 1975-10-02
FR2273334A2 (en) 1975-12-26
DE2501584B2 (de) 1978-06-01
DE2501584C3 (de) 1979-02-01
BR7408101A (pt) 1976-04-27

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