GB382514A - Improvements in or relating to magnet systems for electroacoustic devices, such as loudspeakers or the like, comprising a permanent magnet - Google Patents

Improvements in or relating to magnet systems for electroacoustic devices, such as loudspeakers or the like, comprising a permanent magnet

Info

Publication number
GB382514A
GB382514A GB6215/32A GB621532A GB382514A GB 382514 A GB382514 A GB 382514A GB 6215/32 A GB6215/32 A GB 6215/32A GB 621532 A GB621532 A GB 621532A GB 382514 A GB382514 A GB 382514A
Authority
GB
United Kingdom
Prior art keywords
magnet
volume
permanent magnet
magnets
smaller
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
Application number
GB6215/32A
Other languages
English (en)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB382514A publication Critical patent/GB382514A/en
Expired 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
    • H04R11/00—Transducers of moving-armature or moving-core type

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
GB6215/32A 1931-06-10 1932-03-01 Improvements in or relating to magnet systems for electroacoustic devices, such as loudspeakers or the like, comprising a permanent magnet Expired GB382514A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL382514X 1931-06-10

Publications (1)

Publication Number Publication Date
GB382514A true GB382514A (en) 1932-10-27

Family

ID=19785666

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6215/32A Expired GB382514A (en) 1931-06-10 1932-03-01 Improvements in or relating to magnet systems for electroacoustic devices, such as loudspeakers or the like, comprising a permanent magnet

Country Status (3)

Country Link
BE (1) BE386663A (enExample)
FR (1) FR731818A (enExample)
GB (1) GB382514A (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2427571A (en) * 1947-09-16 Magnetic structure for electrical
EP1386073B1 (de) * 2001-04-24 2005-11-23 Robert Bosch Gmbh Kraftstoffeinspritzventil für eine brennkraftmaschine, mit einem magnetanker aus kobalt und eisen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2427571A (en) * 1947-09-16 Magnetic structure for electrical
EP1386073B1 (de) * 2001-04-24 2005-11-23 Robert Bosch Gmbh Kraftstoffeinspritzventil für eine brennkraftmaschine, mit einem magnetanker aus kobalt und eisen

Also Published As

Publication number Publication date
FR731818A (fr) 1932-09-08
BE386663A (enExample)

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