FR659604A - Membrane for loudspeaker or similar device - Google Patents

Membrane for loudspeaker or similar device

Info

Publication number
FR659604A
FR659604A FR659604DA FR659604A FR 659604 A FR659604 A FR 659604A FR 659604D A FR659604D A FR 659604DA FR 659604 A FR659604 A FR 659604A
Authority
FR
France
Prior art keywords
loudspeaker
membrane
similar device
similar
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
Other languages
French (fr)
Inventor
Walter Vollmann
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 filed Critical
Application granted granted Critical
Publication of FR659604A publication Critical patent/FR659604A/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
    • 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
    • H04R7/122—Non-planar diaphragms or cones comprising a plurality of sections or layers

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
FR659604D 1928-05-05 1928-08-28 Membrane for loudspeaker or similar device Expired FR659604A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW79281D DE557366C (en) 1928-05-05 1928-05-05 speaker

Publications (1)

Publication Number Publication Date
FR659604A true FR659604A (en) 1929-07-03

Family

ID=10155069

Family Applications (1)

Application Number Title Priority Date Filing Date
FR659604D Expired FR659604A (en) 1928-05-05 1928-08-28 Membrane for loudspeaker or similar device

Country Status (5)

Country Link
BE (1) BE358783A (en)
DE (1) DE557366C (en)
FR (1) FR659604A (en)
GB (1) GB314691A (en)
NL (1) NL27769C (en)

Also Published As

Publication number Publication date
NL27769C (en)
DE557366C (en) 1932-08-22
BE358783A (en)
GB314691A (en) 1929-07-04

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