FR834563A - Improvements in the construction of membranes for electro-acoustic devices, using a fibrous paste - Google Patents

Improvements in the construction of membranes for electro-acoustic devices, using a fibrous paste

Info

Publication number
FR834563A
FR834563A FR834563DA FR834563A FR 834563 A FR834563 A FR 834563A FR 834563D A FR834563D A FR 834563DA FR 834563 A FR834563 A FR 834563A
Authority
FR
France
Prior art keywords
membranes
electro
construction
acoustic devices
fibrous paste
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)
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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
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 Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Application granted granted Critical
Publication of FR834563A publication Critical patent/FR834563A/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
    • H04R7/125—Non-planar diaphragms or cones comprising a plurality of sections or layers comprising a plurality of superposed layers in contact

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR834563D 1937-03-02 1938-03-02 Improvements in the construction of membranes for electro-acoustic devices, using a fibrous paste Expired FR834563A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE834563X 1937-03-02

Publications (1)

Publication Number Publication Date
FR834563A true FR834563A (en) 1938-11-24

Family

ID=6760684

Family Applications (1)

Application Number Title Priority Date Filing Date
FR834563D Expired FR834563A (en) 1937-03-02 1938-03-02 Improvements in the construction of membranes for electro-acoustic devices, using a fibrous paste

Country Status (1)

Country Link
FR (1) FR834563A (en)

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