FR815793A - Improvements made in the establishment of membranes for loudspeakers - Google Patents

Improvements made in the establishment of membranes for loudspeakers

Info

Publication number
FR815793A
FR815793A FR815793DA FR815793A FR 815793 A FR815793 A FR 815793A FR 815793D A FR815793D A FR 815793DA FR 815793 A FR815793 A FR 815793A
Authority
FR
France
Prior art keywords
loudspeakers
establishment
membranes
improvements made
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
Andre Laffineur
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 FR815793A publication Critical patent/FR815793A/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
    • H04R7/14—Non-planar diaphragms or cones corrugated, pleated or ribbed

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR815793D 1936-12-31 1936-12-31 Improvements made in the establishment of membranes for loudspeakers Expired FR815793A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR815793T 1936-12-31

Publications (1)

Publication Number Publication Date
FR815793A true FR815793A (en) 1937-07-22

Family

ID=9267438

Family Applications (1)

Application Number Title Priority Date Filing Date
FR815793D Expired FR815793A (en) 1936-12-31 1936-12-31 Improvements made in the establishment of membranes for loudspeakers

Country Status (1)

Country Link
FR (1) FR815793A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10058274A1 (en) * 2000-11-23 2002-05-29 Alfa Laval Flow Gmbh Membrane is provided with a surface structure formed by two families of crossing grooves or beads oriented at angles within a specified range to the radii drawn through the respective crossing points

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10058274A1 (en) * 2000-11-23 2002-05-29 Alfa Laval Flow Gmbh Membrane is provided with a surface structure formed by two families of crossing grooves or beads oriented at angles within a specified range to the radii drawn through the respective crossing points

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