GB252685A - Cone type loud speaker - Google Patents

Cone type loud speaker

Info

Publication number
GB252685A
GB252685A GB9728/26A GB972826A GB252685A GB 252685 A GB252685 A GB 252685A GB 9728/26 A GB9728/26 A GB 9728/26A GB 972826 A GB972826 A GB 972826A GB 252685 A GB252685 A GB 252685A
Authority
GB
United Kingdom
Prior art keywords
edge
diaphragm
hopkins
loud
limb
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
GB9728/26A
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.)
HOPKINS CORP
Original Assignee
HOPKINS CORP
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 by HOPKINS CORP filed Critical HOPKINS CORP
Publication of GB252685A publication Critical patent/GB252685A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
GB9728/26A 1925-06-01 1926-04-13 Cone type loud speaker Expired GB252685A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US34255A US1630008A (en) 1925-06-01 1925-06-01 Cone-type loud speaker

Publications (1)

Publication Number Publication Date
GB252685A true GB252685A (en) 1927-06-02

Family

ID=21875256

Family Applications (2)

Application Number Title Priority Date Filing Date
GB28790/26A Expired GB261426A (en) 1925-06-01 1926-04-13 Cone type loud speaker
GB9728/26A Expired GB252685A (en) 1925-06-01 1926-04-13 Cone type loud speaker

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB28790/26A Expired GB261426A (en) 1925-06-01 1926-04-13 Cone type loud speaker

Country Status (6)

Country Link
US (1) US1630008A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE334366A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE551526C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR616148A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (2) GB261426A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL21057C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2810447A (en) * 1955-05-31 1957-10-22 Ford Motor Co Rear seat speaker
US5418337A (en) * 1993-05-28 1995-05-23 Bose Corporation Loudspeaker driver surrounding

Also Published As

Publication number Publication date
BE334366A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL21057C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR616148A (fr) 1927-01-24
DE551526C (de) 1932-06-02
US1630008A (en) 1927-05-24
GB261426A (en) 1927-04-21

Similar Documents

Publication Publication Date Title
GB469286A (en) Improvements in or relating to loud speakers
US3609253A (en) Loudspeaker with improved voice coil suspension
GB369030A (en) Loud speaker
GB252685A (en) Cone type loud speaker
GB252002A (en) Improvements in electro-dynamic devices adapted for use as microphones or loud-speaking apparatus
GB312756A (en) Improvements in and relating to electrically operated loud speakers
GB216946A (en) Improvements in acoustic reproducing devices
GB451754A (en) Improvements in and relating to loud speakers
GB284343A (en) Improvements in or connected with souud reproducing devices
GB455208A (en) Improvements in electro-dynamic loud speakers, microphones and the like sound reproducing and recording apparatus
GB310997A (en) Improvements in or relating to wireless loud speakers, microphones and the like
GB709656A (en) Improvements in electrodynamic sound receiving and transmitting apparatus
GB298751A (en) Improvements relating to telephone instruments and particularly to loud speakers
US1613775A (en) Electromagnetic sound reproducer
GB257271A (en) Telephone with free vibrating diaphragm surface
GB266271A (en) Improvements in or relating to telephone loud speakers
GB359092A (en) Improvements in loud speakers
GB306839A (en) Improvements in loud speakers
US1672493A (en) Loud speaker
US1753979A (en) Acoustic diaphragm and loud-speaker combination
GB280772A (en) Hornless loud speaker
GB248122A (en) Improvements in and relating to electromagnetic and electrodynamic sound-emitting and converting apparatus
GB396925A (en) Improvements in loud speakers
GB253487A (en) Electrical sound reproducing instrument
GB257317A (en) Improvements in or relating to devices for emitting or receiving sound