GB2334849B - The double diaphragm - Google Patents

The double diaphragm

Info

Publication number
GB2334849B
GB2334849B GB9804275A GB9804275A GB2334849B GB 2334849 B GB2334849 B GB 2334849B GB 9804275 A GB9804275 A GB 9804275A GB 9804275 A GB9804275 A GB 9804275A GB 2334849 B GB2334849 B GB 2334849B
Authority
GB
United Kingdom
Prior art keywords
double diaphragm
diaphragm
double
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 - Fee Related
Application number
GB9804275A
Other versions
GB9804275D0 (en
GB2334849A (en
Inventor
Simon James Norfolk
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB9804275A priority Critical patent/GB2334849B/en
Publication of GB9804275D0 publication Critical patent/GB9804275D0/en
Publication of GB2334849A publication Critical patent/GB2334849A/en
Application granted granted Critical
Publication of GB2334849B publication Critical patent/GB2334849B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H04R9/063—Loudspeakers using a plurality of acoustic drivers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
GB9804275A 1998-02-27 1998-02-27 The double diaphragm Expired - Fee Related GB2334849B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9804275A GB2334849B (en) 1998-02-27 1998-02-27 The double diaphragm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9804275A GB2334849B (en) 1998-02-27 1998-02-27 The double diaphragm

Publications (3)

Publication Number Publication Date
GB9804275D0 GB9804275D0 (en) 1998-04-22
GB2334849A GB2334849A (en) 1999-09-01
GB2334849B true GB2334849B (en) 2001-02-28

Family

ID=10827761

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9804275A Expired - Fee Related GB2334849B (en) 1998-02-27 1998-02-27 The double diaphragm

Country Status (1)

Country Link
GB (1) GB2334849B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB445935A (en) * 1934-10-17 1936-04-17 Alfred Sidney Evans An improved sound reproducing device
US4595801A (en) * 1983-10-27 1986-06-17 Ronald Coffin Coupled dual cone velocity driver speaker
EP0804048A2 (en) * 1996-04-26 1997-10-29 NOKIA TECHNOLOGY GmbH Loudspeaker
US5701358A (en) * 1994-07-05 1997-12-23 Larsen; John T. Isobaric loudspeaker

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB445935A (en) * 1934-10-17 1936-04-17 Alfred Sidney Evans An improved sound reproducing device
US4595801A (en) * 1983-10-27 1986-06-17 Ronald Coffin Coupled dual cone velocity driver speaker
US5701358A (en) * 1994-07-05 1997-12-23 Larsen; John T. Isobaric loudspeaker
EP0804048A2 (en) * 1996-04-26 1997-10-29 NOKIA TECHNOLOGY GmbH Loudspeaker

Also Published As

Publication number Publication date
GB9804275D0 (en) 1998-04-22
GB2334849A (en) 1999-09-01

Similar Documents

Publication Publication Date Title
ZA996185B (en) Sulfanylsilanes.
ZA200005136B (en) Dihydropyrimides.
HK1042653A1 (en) External preparation.
ZA991272B (en) Novel thiobenzamides.
ZA992443B (en) Hydroxy-methyl-hexanones.
ZA995325B (en) Methylcyclotetradec-5-en-1-ones.
ZA993123B (en) Trisresorcinyltriazines.
EP1101951A4 (en) Diaphragm actuator
GB9814227D0 (en) The worthybag
GB9801584D0 (en) The maitriser
GB2334849B (en) The double diaphragm
GB9804598D0 (en) The gobbler
GB2334672B (en) The Allenderry chair
TW355371U (en) The sprots spplies
GB9825322D0 (en) The thermo-tub
GB9807853D0 (en) The cardphone
GB9819730D0 (en) The waterhorse
GB9815214D0 (en) The multifan
GB9801785D0 (en) The husher
GB9827803D0 (en) The braid-seal
GB9828011D0 (en) The Leisurest
AUPP258398A0 (en) The centra-mix
AUPP649098A0 (en) The double loop
ZA997658B (en) Battery diaphragm.
GB9828503D0 (en) Transducer

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20020227