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GB2341742B - Acoustic absorber and emitter - Google Patents

Acoustic absorber and emitter

Info

Publication number
GB2341742B
GB2341742B GB9820561A GB9820561A GB2341742B GB 2341742 B GB2341742 B GB 2341742B GB 9820561 A GB9820561 A GB 9820561A GB 9820561 A GB9820561 A GB 9820561A GB 2341742 B GB2341742 B GB 2341742B
Authority
GB
United Kingdom
Prior art keywords
emitter
acoustic absorber
absorber
acoustic
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 - Fee Related
Application number
GB9820561A
Other versions
GB9820561D0 (en
GB2341742A (en
Inventor
Laurence George Dickie
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.)
Blast Loudspeakers Ltd
Original Assignee
Blast Loudspeakers 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 Blast Loudspeakers Ltd filed Critical Blast Loudspeakers Ltd
Priority to GB9820561A priority Critical patent/GB2341742B/en
Publication of GB9820561D0 publication Critical patent/GB9820561D0/en
Publication of GB2341742A publication Critical patent/GB2341742A/en
Application granted granted Critical
Publication of GB2341742B publication Critical patent/GB2341742B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • 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)
  • Building Environments (AREA)
GB9820561A 1998-09-21 1998-09-21 Acoustic absorber and emitter Expired - Fee Related GB2341742B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9820561A GB2341742B (en) 1998-09-21 1998-09-21 Acoustic absorber and emitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9820561A GB2341742B (en) 1998-09-21 1998-09-21 Acoustic absorber and emitter

Publications (3)

Publication Number Publication Date
GB9820561D0 GB9820561D0 (en) 1998-11-11
GB2341742A GB2341742A (en) 2000-03-22
GB2341742B true GB2341742B (en) 2003-04-23

Family

ID=10839223

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9820561A Expired - Fee Related GB2341742B (en) 1998-09-21 1998-09-21 Acoustic absorber and emitter

Country Status (1)

Country Link
GB (1) GB2341742B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8763927B2 (en) 2006-04-19 2014-07-01 Commonwealth Scientific And Industrial Research Organisation Ultrasonic transducer systems
DE102010021879A1 (en) 2010-05-28 2011-12-01 Frank Held Loudspeaker device with circumferential, funnel-shaped sound outlet opening
GB2605371B (en) * 2021-03-29 2025-02-05 Bae Systems Plc Acoustic absorbing structures

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB744167A (en) * 1952-11-19 1956-02-01 Tannoy Ltd Improvements relating to loudspeakers
GB1470036A (en) * 1975-01-17 1977-04-14 Lockheed Aircraft Corp Dual range sound absorber
US5185504A (en) * 1992-06-30 1993-02-09 Jen Wang H Acoustic board
WO1994011222A1 (en) * 1992-11-07 1994-05-26 Helmut Pelzer Moulded article designed to absorb airborne sound
US5491310A (en) * 1990-08-16 1996-02-13 Jen; Wang H. Acoustic board
GB2300081A (en) * 1995-04-20 1996-10-23 Dornier Gmbh Acoustic absorber

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB744167A (en) * 1952-11-19 1956-02-01 Tannoy Ltd Improvements relating to loudspeakers
GB1470036A (en) * 1975-01-17 1977-04-14 Lockheed Aircraft Corp Dual range sound absorber
US5491310A (en) * 1990-08-16 1996-02-13 Jen; Wang H. Acoustic board
US5185504A (en) * 1992-06-30 1993-02-09 Jen Wang H Acoustic board
WO1994011222A1 (en) * 1992-11-07 1994-05-26 Helmut Pelzer Moulded article designed to absorb airborne sound
GB2300081A (en) * 1995-04-20 1996-10-23 Dornier Gmbh Acoustic absorber

Also Published As

Publication number Publication date
GB9820561D0 (en) 1998-11-11
GB2341742A (en) 2000-03-22

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20040921