BE794025A - MAGNET SET - Google Patents

MAGNET SET

Info

Publication number
BE794025A
BE794025A BE794025DA BE794025A BE 794025 A BE794025 A BE 794025A BE 794025D A BE794025D A BE 794025DA BE 794025 A BE794025 A BE 794025A
Authority
BE
Belgium
Prior art keywords
magnet set
magnet
Prior art date
Application number
Other languages
French (fr)
Inventor
R J Parker
Original Assignee
Gen Electric
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.)
Publication date
Publication of BE794025A publication Critical patent/BE794025A/en

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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
    • H04R2209/022—Aspects regarding the stray flux internal or external to the magnetic circuit, e.g. shielding, shape of magnetic circuit, flux compensation coils

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
BE794025D 1972-01-21 MAGNET SET BE794025A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21971872A 1972-01-21 1972-01-21

Publications (1)

Publication Number Publication Date
BE794025A true BE794025A (en) 1973-05-02

Family

ID=22820492

Family Applications (1)

Application Number Title Priority Date Filing Date
BE794025D BE794025A (en) 1972-01-21 MAGNET SET

Country Status (9)

Country Link
US (1) US3763334A (en)
JP (1) JPS4883817A (en)
BE (1) BE794025A (en)
DE (1) DE2302385A1 (en)
ES (1) ES410589A1 (en)
FR (1) FR2168575B1 (en)
GB (1) GB1409789A (en)
IT (1) IT978181B (en)
NL (1) NL7217774A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4645960A (en) * 1979-07-30 1987-02-24 Litton Systems, Inc. Ferro-fluid bearing
US4451811A (en) * 1979-07-30 1984-05-29 Litton Systems, Inc. Magnet structure
US4878560A (en) * 1989-03-16 1989-11-07 Scott Robert T Earmold
NO167699C (en) * 1989-05-16 1991-11-27 Infrawave Tech As ELECTROMECHANICAL TRANSDUCES FOR LOW-FREQUENCY VIBRATIONS.
WO1992016772A2 (en) * 1991-03-13 1992-10-01 Alfred Teves Gmbh Twin-tube shock absorber
DE69430776T2 (en) * 1993-04-28 2003-03-27 Matsushita Electric Ind Co Ltd Speaker apparatus
DE29512102U1 (en) * 1995-07-27 1995-10-05 Nokia Deutschland Gmbh Magnet system
DE19616794B4 (en) * 1996-04-26 2005-09-29 Harman Audio Electronic Systems Gmbh speaker
DE10215364B4 (en) * 2002-04-08 2004-05-27 Harman/Becker Automotive Systems Gmbh (Straubing Division) Drive arrangement for a loudspeaker
DE10232643A1 (en) * 2002-07-18 2004-02-12 Harman/Becker Automotive Systems Gmbh (Straubing Division) Actuating structure for a loudspeaker has an arrangement of magnets with an actuating magnet, a pole core and a pole shank as well as an air gap
FR2960738B1 (en) * 2010-05-28 2015-09-25 Focal Jmlab ACOUSTIC SPEAKER

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2293078A (en) * 1939-12-05 1942-08-18 B A Proctor Company Inc Microphone
US2860721A (en) * 1954-03-24 1958-11-18 Fauthal A Hassan Sound reproducing device
DE971442C (en) * 1954-08-29 1959-01-29 Standard Elek K Lorenz Ag Dynamic speaker
USRE26030E (en) * 1956-02-28 1966-05-24 Dynamic transducer
US3046362A (en) * 1956-11-06 1962-07-24 Stanley F White Speaker
US2923783A (en) * 1957-06-17 1960-02-02 Stanley F White Electro-acoustical transducer
US3413579A (en) * 1966-03-14 1968-11-26 Westinghouse Electric Corp Magnetic field assembly for electro-mechanical transducers

Also Published As

Publication number Publication date
ES410589A1 (en) 1975-12-16
DE2302385A1 (en) 1973-07-26
GB1409789A (en) 1975-10-15
NL7217774A (en) 1973-07-24
FR2168575B1 (en) 1977-02-04
JPS4883817A (en) 1973-11-08
IT978181B (en) 1974-09-20
US3763334A (en) 1973-10-02
FR2168575A1 (en) 1973-08-31

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