NL25012C - - Google Patents

Info

Publication number
NL25012C
NL25012C NL25012DA NL25012C NL 25012 C NL25012 C NL 25012C NL 25012D A NL25012D A NL 25012DA NL 25012 C NL25012 C NL 25012C
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 NL25012C publication Critical patent/NL25012C/xx
Priority claimed from US190423A external-priority patent/US1726105A/en
Priority claimed from US190484A external-priority patent/US1866603A/en

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/002—Damping circuit arrangements for transducers, e.g. motional feedback circuits
    • 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
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • 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
    • H04R7/26—Damping by means acting directly on free portion of diaphragm or cone
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
NL25012D 1927-05-11 NL25012C (enrdf_load_html_response)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US190423A US1726105A (en) 1927-05-11 1927-05-11 Acoustic device
US190484A US1866603A (en) 1927-05-11 1927-05-11 Acoustic device

Publications (1)

Publication Number Publication Date
NL25012C true NL25012C (enrdf_load_html_response)

Family

ID=26886097

Family Applications (1)

Application Number Title Priority Date Filing Date
NL25012D NL25012C (enrdf_load_html_response) 1927-05-11

Country Status (4)

Country Link
BE (1) BE345838A (enrdf_load_html_response)
FR (2) FR644552A (enrdf_load_html_response)
GB (2) GB290235A (enrdf_load_html_response)
NL (1) NL25012C (enrdf_load_html_response)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2474848B (en) * 2009-10-27 2014-05-28 Michael Peter Cooke Loudspeaker

Also Published As

Publication number Publication date
GB290235A (en) 1928-06-14
FR644552A (fr) 1928-10-10
GB290239A (en) 1929-05-13
FR35192E (fr) 1929-12-17
BE345838A (enrdf_load_html_response)

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