FR2152746B1 - - Google Patents

Info

Publication number
FR2152746B1
FR2152746B1 FR7231813A FR7231813A FR2152746B1 FR 2152746 B1 FR2152746 B1 FR 2152746B1 FR 7231813 A FR7231813 A FR 7231813A FR 7231813 A FR7231813 A FR 7231813A FR 2152746 B1 FR2152746 B1 FR 2152746B1
Authority
FR
France
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
FR7231813A
Other languages
French (fr)
Other versions
FR2152746A1 (enrdf_load_stackoverflow
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.)
Individual
Original Assignee
Individual
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
Priority claimed from JP6912271A external-priority patent/JPS5245216B2/ja
Priority claimed from JP8112471U external-priority patent/JPS512601Y2/ja
Application filed by Individual filed Critical Individual
Publication of FR2152746A1 publication Critical patent/FR2152746A1/fr
Application granted granted Critical
Publication of FR2152746B1 publication Critical patent/FR2152746B1/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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/041—Centering
    • H04R9/042—Centering by pressurised air
    • 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)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
FR7231813A 1971-09-07 1972-09-07 Expired FR2152746B1 (enrdf_load_stackoverflow)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP6912271A JPS5245216B2 (enrdf_load_stackoverflow) 1971-09-07 1971-09-07
JP8112471U JPS512601Y2 (enrdf_load_stackoverflow) 1971-09-07 1971-09-07

Publications (2)

Publication Number Publication Date
FR2152746A1 FR2152746A1 (enrdf_load_stackoverflow) 1973-04-27
FR2152746B1 true FR2152746B1 (enrdf_load_stackoverflow) 1978-07-07

Family

ID=26410307

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7231813A Expired FR2152746B1 (enrdf_load_stackoverflow) 1971-09-07 1972-09-07

Country Status (4)

Country Link
US (1) US3804994A (enrdf_load_stackoverflow)
DE (1) DE2243745A1 (enrdf_load_stackoverflow)
FR (1) FR2152746B1 (enrdf_load_stackoverflow)
GB (1) GB1402180A (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS559039Y2 (enrdf_load_stackoverflow) * 1974-05-14 1980-02-27
TW464150U (en) * 2000-06-28 2001-11-11 Deccon Company Ltd Drum paper having composite-layered edge
RU2582158C2 (ru) * 2013-10-16 2016-04-20 Александр Васильевич Дегтярев Громкоговоритель.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1613609A (en) * 1923-06-05 1927-01-11 Western Electric Co Acoustic device
GB320647A (en) * 1928-07-18 1929-10-18 Frederick William Lanchester Improvements in moving coil loud speakers

Also Published As

Publication number Publication date
US3804994A (en) 1974-04-16
FR2152746A1 (enrdf_load_stackoverflow) 1973-04-27
DE2243745A1 (de) 1973-03-15
GB1402180A (en) 1975-08-06

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Legal Events

Date Code Title Description
ST Notification of lapse