GB292739A - Improvements in or relating to an electrodynamic magnet system for microphones, loud speakers or similar devices - Google Patents

Improvements in or relating to an electrodynamic magnet system for microphones, loud speakers or similar devices

Info

Publication number
GB292739A
GB292739A GB12017/27A GB1201727A GB292739A GB 292739 A GB292739 A GB 292739A GB 12017/27 A GB12017/27 A GB 12017/27A GB 1201727 A GB1201727 A GB 1201727A GB 292739 A GB292739 A GB 292739A
Authority
GB
United Kingdom
Prior art keywords
annular
coil
secured
magnet system
electrodynamic
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
GB12017/27A
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 GB292739A publication Critical patent/GB292739A/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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/045—Mounting

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
GB12017/27A 1927-03-25 1927-05-05 Improvements in or relating to an electrodynamic magnet system for microphones, loud speakers or similar devices Expired GB292739A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL36431A NL27011C (enrdf_load_html_response) 1927-03-25 1927-03-25

Publications (1)

Publication Number Publication Date
GB292739A true GB292739A (en) 1928-06-28

Family

ID=32472173

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12017/27A Expired GB292739A (en) 1927-03-25 1927-05-05 Improvements in or relating to an electrodynamic magnet system for microphones, loud speakers or similar devices

Country Status (5)

Country Link
US (1) US2006847A (enrdf_load_html_response)
BE (1) BE349115A (enrdf_load_html_response)
FR (1) FR649790A (enrdf_load_html_response)
GB (1) GB292739A (enrdf_load_html_response)
NL (1) NL27011C (enrdf_load_html_response)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4235302A (en) * 1977-03-15 1980-11-25 Kenkichi Tsukamoto Loudspeaker
US4239090A (en) * 1979-03-29 1980-12-16 Dahlquist Jon G High accuracy bass reproducer device
EP0778721A3 (en) * 1995-12-06 2006-03-29 Pioneer Electronic Corporation Damping mechanism for loudspeaker membranes

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2492255A (en) * 1944-12-26 1949-12-27 John O Angehrn Sealed-coil type vibratory magnet loudspeaker
IT1395441B1 (it) * 2009-09-09 2012-09-21 Ask Ind Societa Per Azioni Trasduttore magneto-dinamico con sistema centrante

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4235302A (en) * 1977-03-15 1980-11-25 Kenkichi Tsukamoto Loudspeaker
US4239090A (en) * 1979-03-29 1980-12-16 Dahlquist Jon G High accuracy bass reproducer device
EP0778721A3 (en) * 1995-12-06 2006-03-29 Pioneer Electronic Corporation Damping mechanism for loudspeaker membranes

Also Published As

Publication number Publication date
BE349115A (enrdf_load_html_response)
FR649790A (fr) 1928-12-27
US2006847A (en) 1935-07-02
NL27011C (enrdf_load_html_response) 1932-06-15

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