[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

GB8603645D0 - Loudspeakers - Google Patents

Loudspeakers

Info

Publication number
GB8603645D0
GB8603645D0 GB868603645A GB8603645A GB8603645D0 GB 8603645 D0 GB8603645 D0 GB 8603645D0 GB 868603645 A GB868603645 A GB 868603645A GB 8603645 A GB8603645 A GB 8603645A GB 8603645 D0 GB8603645 D0 GB 8603645D0
Authority
GB
United Kingdom
Prior art keywords
dome
stiff
central
cone
fibre
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.)
Pending
Application number
GB868603645A
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.)
CELESTION INT Ltd
Original Assignee
CELESTION INT 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 CELESTION INT Ltd filed Critical CELESTION INT Ltd
Priority to GB868603645A priority Critical patent/GB8603645D0/en
Publication of GB8603645D0 publication Critical patent/GB8603645D0/en
Priority to CA000529745A priority patent/CA1292307C/en
Priority to DE3788293T priority patent/DE3788293T2/en
Priority to ES87301271T priority patent/ES2048733T3/en
Priority to EP87301271A priority patent/EP0235991B1/en
Priority to GB8703315A priority patent/GB2186761B/en
Priority to AT87301271T priority patent/ATE98081T1/en
Priority to JP62030710A priority patent/JPS62248398A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

In a cone loudspeaker having a central dome (14), an annular cone (10) around the dome, and a voice coil (18), the central dome (14) is made mechanically strong and axially stiff and is an acoustic radiator in its own right. The dome (14) is preferably also radially stiff and its radial stiffness may be enhanced by a circumferential reinforcing ring. The dome is preferably hemispherical and may be made of aluminium, titanium or fibre-reinforced plastics materials.
GB868603645A 1986-02-14 1986-02-14 Loudspeakers Pending GB8603645D0 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB868603645A GB8603645D0 (en) 1986-02-14 1986-02-14 Loudspeakers
CA000529745A CA1292307C (en) 1986-02-14 1987-02-13 Cone loudspeakers
DE3788293T DE3788293T2 (en) 1986-02-14 1987-02-13 Cone speaker.
ES87301271T ES2048733T3 (en) 1986-02-14 1987-02-13 CONE SPEAKERS.
EP87301271A EP0235991B1 (en) 1986-02-14 1987-02-13 Cone loudspeakers
GB8703315A GB2186761B (en) 1986-02-14 1987-02-13 Cone loudspeakers
AT87301271T ATE98081T1 (en) 1986-02-14 1987-02-13 CONE SPEAKERS.
JP62030710A JPS62248398A (en) 1986-02-14 1987-02-14 Cone loudspeaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB868603645A GB8603645D0 (en) 1986-02-14 1986-02-14 Loudspeakers

Publications (1)

Publication Number Publication Date
GB8603645D0 true GB8603645D0 (en) 1986-03-19

Family

ID=10593050

Family Applications (2)

Application Number Title Priority Date Filing Date
GB868603645A Pending GB8603645D0 (en) 1986-02-14 1986-02-14 Loudspeakers
GB8703315A Expired GB2186761B (en) 1986-02-14 1987-02-13 Cone loudspeakers

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB8703315A Expired GB2186761B (en) 1986-02-14 1987-02-13 Cone loudspeakers

Country Status (7)

Country Link
EP (1) EP0235991B1 (en)
JP (1) JPS62248398A (en)
AT (1) ATE98081T1 (en)
CA (1) CA1292307C (en)
DE (1) DE3788293T2 (en)
ES (1) ES2048733T3 (en)
GB (2) GB8603645D0 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES292736Y (en) * 1986-03-05 1987-03-01 Plastmetal, S.A. DYNAMIC ALARM SPEAKER PERFECTED
EP0644706B1 (en) * 1993-09-22 2002-08-14 Sony Corporation Horn speaker system
DE4419249A1 (en) * 1994-06-01 1995-12-07 Nokia Deutschland Gmbh speaker
JP3555505B2 (en) * 1999-06-16 2004-08-18 株式会社村田製作所 Speaker
GB2359213B (en) 1999-10-29 2004-05-19 Kef Audio High frequency transducer
CN1839658B (en) * 2003-08-22 2012-08-08 Pss比利时股份有限公司 Loudspeaker having a composite diaphragm structure
CN1879447B (en) * 2003-11-13 2010-10-13 松下电器产业株式会社 Tweeter
JP2005168001A (en) * 2003-11-13 2005-06-23 Matsushita Electric Ind Co Ltd Tweeter
WO2007135746A1 (en) * 2006-05-24 2007-11-29 Pioneer Corporation Speaker unit

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5039925A (en) * 1973-08-15 1975-04-12
JPS51120711A (en) * 1975-04-15 1976-10-22 Hokuto Onkyo Kk Speaker
GB1563511A (en) * 1976-03-19 1980-03-26 Harwood H Diaphragms for electroacoustic transducers
JPS5921881Y2 (en) * 1979-07-13 1984-06-29 日立金属株式会社 magnetic sorter
JPS5634297A (en) * 1979-08-29 1981-04-06 Kenzo Inoue Speaker unit
EP0034503B1 (en) * 1980-02-21 1984-05-16 Wharfedale Limited Improvements in moving coil loudspeakers
GB2099660A (en) * 1981-05-26 1982-12-08 Celestion Int Ltd Radiating domes for loudspeakers
NL8204839A (en) * 1982-01-04 1983-08-01 Jensen Int Inc ELECTRO-DYNAMIC ACTUATOR FOR A SPEAKER AND ACCOMPANYING MEMBRANE.
US4531608A (en) * 1982-10-29 1985-07-30 Heinz Harro K High frequency compression driver
GB8325298D0 (en) * 1983-09-21 1983-10-26 Tannoy Ltd Direct radiator loudspeaker
GB2160741B (en) * 1984-04-24 1988-04-27 Wharfedale Loudspeaker Moving-coil loudspeaker drive unit

Also Published As

Publication number Publication date
EP0235991A3 (en) 1989-05-24
ATE98081T1 (en) 1993-12-15
DE3788293T2 (en) 1994-06-23
ES2048733T3 (en) 1994-04-01
GB8703315D0 (en) 1987-03-18
JPS62248398A (en) 1987-10-29
GB2186761B (en) 1989-11-08
EP0235991A2 (en) 1987-09-09
CA1292307C (en) 1991-11-19
GB2186761A (en) 1987-08-19
DE3788293D1 (en) 1994-01-13
EP0235991B1 (en) 1993-12-01

Similar Documents

Publication Publication Date Title
IL117756A (en) Can end wall
GB2186761B (en) Cone loudspeakers
CA2392994A1 (en) Can lid closure and method of joining a can lid closure to a can body
CA2427611A1 (en) Can lid closure and method of joining a can lid closure to a can body
TW271486B (en) Diaphragm assembly and method of manufacturing same
GB1515677A (en) Diaphragm for electroacoustic converter systems
CA2195372A1 (en) A method of preparing the enantiomers of o-demethyltramadol
MY123082A (en) Closure membrane
EP0273770A3 (en) Smoker's pipe
ATA75597A (en) ELECTROACOUSTIC CONVERTER
DK0685980T3 (en) Speaker
SE8207483L (en) DUPLE DRIVER ORGANIZING WITH SPEAKER COOL FOR SPEAKERS AND MEMBRANE FOR SADANT DRIVER ORGAN
CA2246058A1 (en) Process for the manufacture of a torsion vibration damper
FR2428952A3 (en) Hi=Fi loudspeaker having convex diaphragm - rigidly secured to loudspeaker coil former and flexibly secured to outer annular pole piece
IE840163L (en) Electroacoustic transducers
GR3003808T3 (en)
JPS5680997A (en) Diaphragm of sound generator
JPH0313927U (en)
JPS57135596A (en) Manufacturing apparatus for diaphragm sheet for speaker
CA2006624A1 (en) Sound insulated interchangeable lens
ES486914A1 (en) A method of manufacturing membranes for high-fidelity loud speakers
RU97110328A (en) CRUSHER
JPH02113495U (en)
Blumenthal The limits of humanity; George Bell, the Church of England, and German refugees 1933-1939.
CA2256711A1 (en) Closure membrane