FR795326A - Improvements to diaphragms for all types of applications - Google Patents

Improvements to diaphragms for all types of applications

Info

Publication number
FR795326A
FR795326A FR795326DA FR795326A FR 795326 A FR795326 A FR 795326A FR 795326D A FR795326D A FR 795326DA FR 795326 A FR795326 A FR 795326A
Authority
FR
France
Prior art keywords
diaphragms
applications
types
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)
Inventor
Georges Mombur
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 filed Critical
Application granted granted Critical
Publication of FR795326A publication Critical patent/FR795326A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR795326D 1934-12-17 1934-12-17 Improvements to diaphragms for all types of applications Expired FR795326A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR795326T 1934-12-17

Publications (1)

Publication Number Publication Date
FR795326A true FR795326A (en) 1936-03-11

Family

ID=9234571

Family Applications (1)

Application Number Title Priority Date Filing Date
FR795326D Expired FR795326A (en) 1934-12-17 1934-12-17 Improvements to diaphragms for all types of applications

Country Status (1)

Country Link
FR (1) FR795326A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2771095A (en) * 1951-01-02 1956-11-20 Melville F Peters Metal bellows formation
US4718836A (en) * 1984-07-23 1988-01-12 Normetex Reciprocating completely sealed fluid-tight vacuum pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2771095A (en) * 1951-01-02 1956-11-20 Melville F Peters Metal bellows formation
US4718836A (en) * 1984-07-23 1988-01-12 Normetex Reciprocating completely sealed fluid-tight vacuum pump

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