FR568290A - Perfectionnements apportés aux diaphragmes à ondes sonores - Google Patents

Perfectionnements apportés aux diaphragmes à ondes sonores

Info

Publication number
FR568290A
FR568290A FR568290DA FR568290A FR 568290 A FR568290 A FR 568290A FR 568290D A FR568290D A FR 568290DA FR 568290 A FR568290 A FR 568290A
Authority
FR
France
Prior art keywords
diaphragms
sound wave
sound
wave
wave diaphragms
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)
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.)
RADIOTIVE CORP
Original Assignee
RADIOTIVE CORP
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 RADIOTIVE CORP filed Critical RADIOTIVE CORP
Application granted granted Critical
Publication of FR568290A publication Critical patent/FR568290A/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
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/06—Plane diaphragms comprising a plurality of sections or layers
    • H04R7/10—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
FR568290D 1923-06-20 1923-07-02 Perfectionnements apportés aux diaphragmes à ondes sonores Expired FR568290A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB16046/23A GB222180A (en) 1923-06-20 1923-06-20 Improvements relating to diaphragms

Publications (1)

Publication Number Publication Date
FR568290A true FR568290A (fr) 1924-03-21

Family

ID=10070144

Family Applications (1)

Application Number Title Priority Date Filing Date
FR568290D Expired FR568290A (fr) 1923-06-20 1923-07-02 Perfectionnements apportés aux diaphragmes à ondes sonores

Country Status (5)

Country Link
US (1) US1646261A (fr)
DE (1) DE430435C (fr)
FR (1) FR568290A (fr)
GB (1) GB222180A (fr)
NL (1) NL13657C (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3020971A (en) * 1962-02-13 Cefaly
AT304162B (de) * 1969-12-18 1972-12-27 Ciba Geigy Ag Stabilisierung von pestiziden Phosphorsäureestern
GB2169471A (en) * 1985-01-04 1986-07-09 Anthony Bernard Clarke Acoustic diaphragm

Also Published As

Publication number Publication date
US1646261A (en) 1927-10-18
DE430435C (de) 1926-06-18
NL13657C (fr) 1925-09-15
GB222180A (en) 1924-09-22

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