NL37811C - - Google Patents

Info

Publication number
NL37811C
NL37811C NL37811DA NL37811C NL 37811 C NL37811 C NL 37811C NL 37811D A NL37811D A NL 37811DA NL 37811 C NL37811 C NL 37811C
Authority
NL
Netherlands
Application number
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.)
Publication of NL37811C publication Critical patent/NL37811C/xx

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
    • 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
    • H04R7/122—Non-planar diaphragms or cones comprising a plurality of sections or layers

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
NL37811D 1931-07-18 NL37811C (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1961149X 1931-07-18

Publications (1)

Publication Number Publication Date
NL37811C true NL37811C (xx)

Family

ID=7789178

Family Applications (1)

Application Number Title Priority Date Filing Date
NL37811D NL37811C (xx) 1931-07-18

Country Status (3)

Country Link
US (1) US1961149A (xx)
FR (1) FR739997A (xx)
NL (1) NL37811C (xx)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3033944A (en) * 1957-12-31 1962-05-08 Automatic Elect Lab Magnetostrictive transducer
FR2854021B1 (fr) * 2003-04-16 2006-03-31 Focal Jmlab Transducteur acoustiques en beryllium pur a radiation directe, a membrane de forme concave, pour applications audio notamment pour enceintes acoustiques

Also Published As

Publication number Publication date
US1961149A (en) 1934-06-05
FR739997A (fr) 1933-01-19

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