GB290235A - Improvements in and relating to diaphragms for reproducing sound - Google Patents

Improvements in and relating to diaphragms for reproducing sound

Info

Publication number
GB290235A
GB290235A GB2722827A GB2722827A GB290235A GB 290235 A GB290235 A GB 290235A GB 2722827 A GB2722827 A GB 2722827A GB 2722827 A GB2722827 A GB 2722827A GB 290235 A GB290235 A GB 290235A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
unit
focus
driving
circular
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
GB2722827A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Electrical Research Products Inc
Original Assignee
Electrical Research Products Inc
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
Priority claimed from US190484A external-priority patent/US1866603A/en
Priority claimed from US190423A external-priority patent/US1726105A/en
Application filed by Electrical Research Products Inc filed Critical Electrical Research Products Inc
Publication of GB290235A publication Critical patent/GB290235A/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
    • H04R7/04—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)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
GB2722827A 1927-05-11 1927-10-13 Improvements in and relating to diaphragms for reproducing sound Expired GB290235A (en)

Applications Claiming Priority (2)

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

Publications (1)

Publication Number Publication Date
GB290235A true GB290235A (en) 1928-06-14

Family

ID=26886097

Family Applications (2)

Application Number Title Priority Date Filing Date
GB2722827A Expired GB290235A (en) 1927-05-11 1927-10-13 Improvements in and relating to diaphragms for reproducing sound
GB436628A Expired GB290239A (en) 1927-05-11 1928-02-11 Improvements in or relating to acoustic devices such as loud speakers

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB436628A Expired GB290239A (en) 1927-05-11 1928-02-11 Improvements in or relating to acoustic devices such as loud speakers

Country Status (4)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2474848A (en) * 2009-10-27 2011-05-04 Michael Peter Cooke Planar loudspeaker

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2474848A (en) * 2009-10-27 2011-05-04 Michael Peter Cooke Planar loudspeaker
GB2474848B (en) * 2009-10-27 2014-05-28 Michael Peter Cooke Loudspeaker

Also Published As

Publication number Publication date
GB290239A (en) 1929-05-13
BE345838A (enrdf_load_stackoverflow)
FR35192E (fr) 1929-12-17
FR644552A (fr) 1928-10-10
NL25012C (enrdf_load_stackoverflow)

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