FR739832A - Diaphragm or acoustic membrane for sound recording or reproducing apparatus - Google Patents

Diaphragm or acoustic membrane for sound recording or reproducing apparatus

Info

Publication number
FR739832A
FR739832A FR739832DA FR739832A FR 739832 A FR739832 A FR 739832A FR 739832D A FR739832D A FR 739832DA FR 739832 A FR739832 A FR 739832A
Authority
FR
France
Prior art keywords
diaphragm
reproducing apparatus
sound recording
acoustic membrane
acoustic
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.)
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
Application granted granted Critical
Publication of FR739832A publication Critical patent/FR739832A/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
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
FR739832D 1931-07-14 1932-07-08 Diaphragm or acoustic membrane for sound recording or reproducing apparatus Expired FR739832A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL383921X 1931-07-14

Publications (1)

Publication Number Publication Date
FR739832A true FR739832A (en) 1933-01-17

Family

ID=19785677

Family Applications (1)

Application Number Title Priority Date Filing Date
FR739832D Expired FR739832A (en) 1931-07-14 1932-07-08 Diaphragm or acoustic membrane for sound recording or reproducing apparatus

Country Status (3)

Country Link
BE (1) BE389706A (en)
FR (1) FR739832A (en)
GB (1) GB383921A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2439666A (en) * 1944-01-31 1948-04-13 Rca Corp Loudspeaker diaphragm support

Also Published As

Publication number Publication date
BE389706A (en)
GB383921A (en) 1932-11-24

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