DK138148C - - Google Patents

Info

Publication number
DK138148C
DK138148C DK2872A DK2872A DK138148C DK 138148 C DK138148 C DK 138148C DK 2872 A DK2872 A DK 2872A DK 2872 A DK2872 A DK 2872A DK 138148 C DK138148 C DK 138148C
Authority
DK
Denmark
Application number
DK2872A
Other languages
Danish (da)
Other versions
DK138148B (en
Inventor
L R Ward
Original Assignee
Rola Celestion 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 Rola Celestion Ltd filed Critical Rola Celestion Ltd
Publication of DK138148B publication Critical patent/DK138148B/en
Application granted granted Critical
Publication of DK138148C publication Critical patent/DK138148C/da

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
    • H04R7/127—Non-planar diaphragms or cones dome-shaped
    • 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
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • H04R7/22—Clamping rim of diaphragm or cone against seating

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
DK2872AA 1971-01-04 1972-01-04 Membrane device for an electroacoustic transducer. DK138148B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB33171*[A GB1380914A (en) 1971-01-04 1971-01-04 Diaphragm assemblies for electro-acoustic transducers

Publications (2)

Publication Number Publication Date
DK138148B DK138148B (en) 1978-07-17
DK138148C true DK138148C (en) 1979-01-08

Family

ID=9702509

Family Applications (1)

Application Number Title Priority Date Filing Date
DK2872AA DK138148B (en) 1971-01-04 1972-01-04 Membrane device for an electroacoustic transducer.

Country Status (15)

Country Link
US (1) US3780232A (en)
AT (1) AT326744B (en)
BE (1) BE777617A (en)
CH (1) CH545053A (en)
DE (2) DE2165572C3 (en)
DK (1) DK138148B (en)
ES (1) ES398583A1 (en)
FI (1) FI57507C (en)
FR (1) FR2121536B1 (en)
GB (1) GB1380914A (en)
IE (1) IE35948B1 (en)
IT (1) IT945663B (en)
NL (1) NL7200036A (en)
NO (1) NO130255B (en)
SE (1) SE379474C (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1531791A (en) * 1976-03-17 1978-11-08 Rank Organisation Ltd Transducers
JPS5414726A (en) * 1977-07-06 1979-02-03 Hitachi Ltd Dome type speaker
DE2941644C2 (en) * 1978-10-17 1982-11-11 Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka Loudspeaker cone and process for their manufacture
DE2905566A1 (en) * 1979-02-14 1980-08-28 Standard Elektrik Lorenz Ag UNIVERSAL CALOTE SPEAKER COMPONENT
CH639707A5 (en) * 1979-08-16 1983-11-30 Staeubli Ag ROTATION MACHINE.
JPS6042558Y2 (en) * 1980-04-17 1985-12-27 ソニー株式会社 speaker
US4433214A (en) * 1981-12-24 1984-02-21 Motorola, Inc. Acoustical transducer with a slotted piston suspension
DE3722832A1 (en) * 1987-07-03 1989-01-12 Electronic Werke Deutschland Diaphragm for a loudspeaker
US5357587A (en) * 1992-12-23 1994-10-18 Grodinsky Robert M Distortion reduction in loudspeakers
JP3140895B2 (en) * 1993-10-08 2001-03-05 パイオニア株式会社 Speaker device
AT414069B (en) * 1999-04-22 2006-08-15 Akg Acoustics Gmbh ELECTRIC ACOUSTIC CONVERTER FOR EXTREME PRESSURE LOADS
US6724910B1 (en) 1999-10-04 2004-04-20 Harman International Industries, Incorporated Diaphragm stable through hygroscopic cycling
US6351544B1 (en) 1999-12-10 2002-02-26 Harman International Industries Incorporated Regressively hinged spider
JP2002152885A (en) * 2000-11-14 2002-05-24 Sony Corp Speaker system
EP1515582B1 (en) * 2003-09-11 2006-01-11 AKG Acoustics GmbH Dynamic electroacoustic converter, in particular small speaker
EP1694094A1 (en) * 2005-02-18 2006-08-23 AKG Acoustics GmbH Membrane for a dynamic converter
WO2007109828A1 (en) * 2006-03-28 2007-10-04 Immersion Technology Property Limited Loudspeaker system with acoustic equalisation
CN102047690B (en) * 2008-05-21 2013-10-16 佳奈斯新音响有限公司 Speaker
CN103085338B (en) * 2013-01-21 2014-12-10 宁海县雁苍山电力建设有限公司 Manufacturing method of mold pressing combined paper winding drum
GB2525429A (en) 2014-04-24 2015-10-28 Funktion One Res Loudspeaker
CN204929237U (en) * 2015-07-31 2015-12-30 常州美欧电子有限公司 Portable terminal

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US685429A (en) * 1901-02-05 1901-10-29 George Osten Diaphragm for acoustical apparatus.
GB385286A (en) * 1930-03-17 1932-12-22 Walter Greppert Improvements in and relating to diaphragms, more particularly for sound boxes of talking machines
US2442791A (en) * 1945-09-07 1948-06-08 Bell Telephone Labor Inc Acoustic device
GB763974A (en) * 1953-10-14 1956-12-19 Koepenick Funkwerk Veb Electro-acoustic transducer of the moving coil type
US2974204A (en) * 1954-07-06 1961-03-07 Kane Corp Du Transducer
AT193449B (en) * 1955-09-30 1957-11-25 Siemens Ag Metal membrane
DE1107712B (en) * 1958-12-31 1961-05-31 Sennheiser Electronic Method of making a membrane
US3033945A (en) * 1959-05-01 1962-05-08 Ar Inc Voice coil and diaphragm support for high frequency loud-speaker
US3328537A (en) * 1964-01-09 1967-06-27 Hecht William High frequency sound translating device
AT274080B (en) * 1967-07-05 1969-09-10 Philips Nv Sound transducer with a foam membrane

Also Published As

Publication number Publication date
IE35948B1 (en) 1976-07-07
AT326744B (en) 1975-12-29
FR2121536A1 (en) 1972-08-25
IT945663B (en) 1973-05-10
DK138148B (en) 1978-07-17
GB1380914A (en) 1975-01-15
SE379474C (en) 1981-05-04
US3780232A (en) 1973-12-18
FI57507B (en) 1980-04-30
DE2165572C3 (en) 1981-06-19
DE2165572A1 (en) 1972-07-20
CH545053A (en) 1973-11-30
SE379474B (en) 1975-10-06
ES398583A1 (en) 1974-09-16
NO130255B (en) 1974-07-29
BE777617A (en) 1972-04-17
FI57507C (en) 1980-08-11
NL7200036A (en) 1972-07-06
FR2121536B1 (en) 1979-08-03
IE35948L (en) 1972-07-04
DE2165572B2 (en) 1975-11-06
DE2166848A1 (en) 1976-03-11

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Legal Events

Date Code Title Description
PBP Patent lapsed