ZA733882B - Horns - Google Patents

Horns

Info

Publication number
ZA733882B
ZA733882B ZA733882A ZA733882A ZA733882B ZA 733882 B ZA733882 B ZA 733882B ZA 733882 A ZA733882 A ZA 733882A ZA 733882 A ZA733882 A ZA 733882A ZA 733882 B ZA733882 B ZA 733882B
Authority
ZA
South Africa
Prior art keywords
horns
Prior art date
Application number
ZA733882A
Other languages
English (en)
Inventor
E Hibell
Original Assignee
Lucas Electrical Co Ltd
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 Lucas Electrical Co Ltd filed Critical Lucas Electrical Co Ltd
Publication of ZA733882B publication Critical patent/ZA733882B/xx

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
    • G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
    • G10K11/025—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators horns for impedance matching

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Multiple-Way Valves (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
ZA733882A 1972-06-10 1973-06-08 Horns ZA733882B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2723072A GB1432363A (en) 1972-06-10 1972-06-10 Horns

Publications (1)

Publication Number Publication Date
ZA733882B true ZA733882B (en) 1974-05-29

Family

ID=10256237

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA733882A ZA733882B (en) 1972-06-10 1973-06-08 Horns

Country Status (9)

Country Link
JP (1) JPS4951895A (xx)
AU (1) AU5669473A (xx)
BR (1) BR7304315D0 (xx)
DE (1) DE2329849A1 (xx)
ES (1) ES192261Y (xx)
FR (1) FR2188901A5 (xx)
GB (1) GB1432363A (xx)
IT (1) IT986146B (xx)
ZA (1) ZA733882B (xx)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5437496A (en) * 1977-08-27 1979-03-19 Lucas Industries Ltd Whistle flare
US4359961A (en) * 1979-10-22 1982-11-23 Seron Manufacturing Company Plastic whistle
US4664055A (en) * 1984-02-21 1987-05-12 Kobishi Electric Co., Ltd. Alarm horn
JP6353521B2 (ja) * 2014-03-03 2018-07-04 Toa株式会社 ホーンスピーカー及びホーンアレイスピーカー

Also Published As

Publication number Publication date
ES192261Y (es) 1974-12-16
BR7304315D0 (pt) 1974-07-25
IT986146B (it) 1975-01-20
FR2188901A5 (xx) 1974-01-18
AU5669473A (en) 1974-12-12
GB1432363A (en) 1976-04-14
DE2329849A1 (de) 1973-12-20
JPS4951895A (xx) 1974-05-20
ES192261U (es) 1974-08-16

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