DE2928991C2 - - Google Patents

Info

Publication number
DE2928991C2
DE2928991C2 DE19792928991 DE2928991A DE2928991C2 DE 2928991 C2 DE2928991 C2 DE 2928991C2 DE 19792928991 DE19792928991 DE 19792928991 DE 2928991 A DE2928991 A DE 2928991A DE 2928991 C2 DE2928991 C2 DE 2928991C2
Authority
DE
Germany
Prior art keywords
magnetic
magnet system
magnetic rings
carrier plate
rings
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
DE19792928991
Other languages
German (de)
English (en)
Other versions
DE2928991A1 (de
Inventor
Werner 5300 Bonn De Mueller
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.)
WINDHORST BETEILIGUNGSGESELLSCHAFT MBH, 5300 BONN,
Original Assignee
Magnetfabrik Bonn Vorm Gewerkschaft Windhorst 5300 Bonn De GmbH
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 Magnetfabrik Bonn Vorm Gewerkschaft Windhorst 5300 Bonn De GmbH filed Critical Magnetfabrik Bonn Vorm Gewerkschaft Windhorst 5300 Bonn De GmbH
Priority to DE19792928991 priority Critical patent/DE2928991A1/de
Publication of DE2928991A1 publication Critical patent/DE2928991A1/de
Application granted granted Critical
Publication of DE2928991C2 publication Critical patent/DE2928991C2/de
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/046—Construction
    • H04R9/047—Construction in which the windings of the moving coil lay in the same plane

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
DE19792928991 1979-07-18 1979-07-18 Magnetsystem, insbesondere fuer orthodynamische kopfhoerer, lautsprecher, mikrofone o.dgl. Granted DE2928991A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19792928991 DE2928991A1 (de) 1979-07-18 1979-07-18 Magnetsystem, insbesondere fuer orthodynamische kopfhoerer, lautsprecher, mikrofone o.dgl.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792928991 DE2928991A1 (de) 1979-07-18 1979-07-18 Magnetsystem, insbesondere fuer orthodynamische kopfhoerer, lautsprecher, mikrofone o.dgl.

Publications (2)

Publication Number Publication Date
DE2928991A1 DE2928991A1 (de) 1981-02-12
DE2928991C2 true DE2928991C2 (enExample) 1988-10-06

Family

ID=6076021

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792928991 Granted DE2928991A1 (de) 1979-07-18 1979-07-18 Magnetsystem, insbesondere fuer orthodynamische kopfhoerer, lautsprecher, mikrofone o.dgl.

Country Status (1)

Country Link
DE (1) DE2928991A1 (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1367854A4 (en) * 2001-03-09 2008-12-10 Akito Hanada ELCTROACOUSTIC CONVERTER

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE498215C (de) * 1928-12-07 1930-05-19 Siemens & Halske Akt Ges Elektrodynamisches Telephon mit rostfoermigem Magnetsystem
DE1271274B (de) * 1957-06-29 1968-06-27 Deutsche Edelstahlwerke Ag Dauermagnetsystem mit zentralem Eisenkern
US3898598A (en) * 1974-01-24 1975-08-05 Foster Tsushin Kogyo Dynamic electroacoustic transducer

Also Published As

Publication number Publication date
DE2928991A1 (de) 1981-02-12

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8320 Willingness to grant licenses declared (paragraph 23)
8327 Change in the person/name/address of the patent owner

Owner name: WINDHORST BETEILIGUNGSGESELLSCHAFT MBH, 5300 BONN,

8339 Ceased/non-payment of the annual fee