NL25055C - - Google Patents

Info

Publication number
NL25055C
NL25055C NL25055DA NL25055C NL 25055 C NL25055 C NL 25055C NL 25055D A NL25055D A NL 25055DA NL 25055 C NL25055 C NL 25055C
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 NL25055C publication Critical patent/NL25055C/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
NL25055D 1927-08-06 NL25055C (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US211065A US1699786A (en) 1927-08-06 1927-08-06 Pressure-distributing device

Publications (1)

Publication Number Publication Date
NL25055C true NL25055C (enrdf_load_stackoverflow)

Family

ID=22785461

Family Applications (1)

Application Number Title Priority Date Filing Date
NL25055D NL25055C (enrdf_load_stackoverflow) 1927-08-06

Country Status (2)

Country Link
US (1) US1699786A (enrdf_load_stackoverflow)
NL (1) NL25055C (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4655316A (en) * 1985-03-13 1987-04-07 Jbl Incorporated Acoustic diaphragm
US4761817A (en) * 1986-01-27 1988-08-02 Harman International Industries, Incorporated Diaphragm structure for a transducer
US4881617A (en) * 1988-12-30 1989-11-21 Alexander Faraone Radially arcuated speaker cone
DE69233156T2 (de) * 1991-01-17 2004-07-08 Adelman, Roger A. Verbessertes hörgerät
US6026929A (en) * 1997-11-10 2000-02-22 Single Source Technology And Development, Inc. High frequency radially arcuated center speaker cone with variable thickness
EP1654908B1 (en) * 2003-08-08 2007-03-21 Koninklijke Philips Electronics N.V. Loudspeaker with undulated membrane

Also Published As

Publication number Publication date
US1699786A (en) 1929-01-22

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