FR670068A - Perfectionnements aux appareils acoustiques à membranes sonores - Google Patents

Perfectionnements aux appareils acoustiques à membranes sonores

Info

Publication number
FR670068A
FR670068A FR670068DA FR670068A FR 670068 A FR670068 A FR 670068A FR 670068D A FR670068D A FR 670068DA FR 670068 A FR670068 A FR 670068A
Authority
FR
France
Prior art keywords
acoustic devices
membranes
sound
sound membranes
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
English (en)
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.)
Societe Francaise Radio Electrique
Original Assignee
Societe Francaise Radio Electrique
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 Societe Francaise Radio Electrique filed Critical Societe Francaise Radio Electrique
Application granted granted Critical
Publication of FR670068A publication Critical patent/FR670068A/fr
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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
FR670068D 1928-11-15 1928-06-14 Perfectionnements aux appareils acoustiques à membranes sonores Expired FR670068A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR36441T 1928-11-15

Publications (1)

Publication Number Publication Date
FR670068A true FR670068A (fr) 1929-11-25

Family

ID=8673199

Family Applications (2)

Application Number Title Priority Date Filing Date
FR670068D Expired FR670068A (fr) 1928-11-15 1928-06-14 Perfectionnements aux appareils acoustiques à membranes sonores
FR36441D Expired FR36441E (fr) 1928-11-15 1928-11-15 Perfectionnements aux appareils acoustiques à membranes sonores

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR36441D Expired FR36441E (fr) 1928-11-15 1928-11-15 Perfectionnements aux appareils acoustiques à membranes sonores

Country Status (3)

Country Link
US (1) US1824590A (enrdf_load_stackoverflow)
BE (1) BE360948A (enrdf_load_stackoverflow)
FR (2) FR670068A (enrdf_load_stackoverflow)

Families Citing this family (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
GB2359440A (en) * 2000-02-17 2001-08-22 Goodmans Loudspeakers Ltd Stiffening flange for a conical loudspeaker diaphragm

Also Published As

Publication number Publication date
BE360948A (enrdf_load_stackoverflow)
FR36441E (fr) 1930-06-07
US1824590A (en) 1931-09-22

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