GB2187608A - Loudspeaker for an alarm system - Google Patents

Loudspeaker for an alarm system Download PDF

Info

Publication number
GB2187608A
GB2187608A GB08702673A GB8702673A GB2187608A GB 2187608 A GB2187608 A GB 2187608A GB 08702673 A GB08702673 A GB 08702673A GB 8702673 A GB8702673 A GB 8702673A GB 2187608 A GB2187608 A GB 2187608A
Authority
GB
United Kingdom
Prior art keywords
membrane
diaphragm
domed
conical
frustro
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.)
Withdrawn
Application number
GB08702673A
Other languages
English (en)
Other versions
GB8702673D0 (en
Inventor
Pedro Altimira Vinallonga
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.)
Plastmetal SA
Original Assignee
Plastmetal SA
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 Plastmetal SA filed Critical Plastmetal SA
Publication of GB8702673D0 publication Critical patent/GB8702673D0/en
Publication of GB2187608A publication Critical patent/GB2187608A/en
Withdrawn legal-status Critical Current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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
GB08702673A 1986-03-05 1987-02-06 Loudspeaker for an alarm system Withdrawn GB2187608A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES1986292736U ES292736Y (es) 1986-03-05 1986-03-05 Altavoz dinamico para alarmas perfeccionado

Publications (2)

Publication Number Publication Date
GB8702673D0 GB8702673D0 (en) 1987-03-11
GB2187608A true GB2187608A (en) 1987-09-09

Family

ID=8440109

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08702673A Withdrawn GB2187608A (en) 1986-03-05 1987-02-06 Loudspeaker for an alarm system

Country Status (4)

Country Link
ES (1) ES292736Y (es)
FR (1) FR2595497B1 (es)
GB (1) GB2187608A (es)
PT (1) PT84374B (es)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB384485A (en) * 1932-02-20 1932-12-08 Leonard Walter Murkham Improvements in or relating to sound reproducing devices of the electro-dynamic or mo
GB494729A (en) * 1937-04-29 1938-10-31 Ernest Frank Sewell Apparatus for simultaneous and independent front and rear wheel steering for vehicles
GB2070390A (en) * 1980-02-21 1981-09-03 Rank Organisation Ltd Loudspeaker diaphragm

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR724999A (fr) * 1931-01-12 1932-05-06 Aeg Perfectionnements aux appareils d'enregistrement ou de reproduction du son, entraînés de préférence de façon électrodynamique
US2469773A (en) * 1934-06-04 1949-05-10 Jensen Mfg Company Loud-speaker diaphragm support member
GB465795A (en) * 1935-11-08 1937-05-10 Cinaudagraph Corp Improvements in electro-acoustical reproducers
GB494726A (en) * 1937-04-28 1938-10-28 British Thomson Houston Co Ltd Acoustic diaphragm
BE479149A (es) * 1943-01-07
JPS5634297A (en) * 1979-08-29 1981-04-06 Kenzo Inoue Speaker unit
US4336425A (en) * 1980-05-06 1982-06-22 Renkus-Heinz, Inc. High frequency compression driver and method of manufacture thereof
GB8603645D0 (en) * 1986-02-14 1986-03-19 Celestion Int Ltd Loudspeakers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB384485A (en) * 1932-02-20 1932-12-08 Leonard Walter Murkham Improvements in or relating to sound reproducing devices of the electro-dynamic or mo
GB494729A (en) * 1937-04-29 1938-10-31 Ernest Frank Sewell Apparatus for simultaneous and independent front and rear wheel steering for vehicles
GB2070390A (en) * 1980-02-21 1981-09-03 Rank Organisation Ltd Loudspeaker diaphragm

Also Published As

Publication number Publication date
PT84374A (fr) 1987-03-01
ES292736U (es) 1986-06-16
GB8702673D0 (en) 1987-03-11
PT84374B (pt) 1989-10-04
FR2595497B1 (fr) 1992-09-04
ES292736Y (es) 1987-03-01
FR2595497A1 (fr) 1987-09-11

Similar Documents

Publication Publication Date Title
KR100896738B1 (ko) 동심 동일 평면상의 다중 대역 전기 음향 변환기
US4559584A (en) Combination lighting device and loudspeaker
US4796009A (en) Electronic warning apparatus
EP0755617B1 (en) A modular tweeter
US4152552A (en) Horn speaker and method for producing low distortion sound
US4885773A (en) Apparatus for mounting a unidirectional microphone in a hands-free telephone subset
JP3334842B2 (ja) スピーカユニット及びその製造方法
EA199800252A1 (ru) Дисплейное средство, включающее громкоговоритель
WO2008008034A1 (en) High frequency diaphragm and voice coil assembly
US4330878A (en) Sound producing device for watches
US6556684B1 (en) Spa audio system
GB2187608A (en) Loudspeaker for an alarm system
EP1755357B1 (en) Coaxial two-way drive unit for horn speakers
US4293741A (en) Magnet assembly
US4116302A (en) Horn loudspeaker
US20050105753A1 (en) Equaliser, or phase plug, for electro-acoustic transducers
GB375538A (en) Loud speaker
US3454729A (en) Outdoor paging loudspeaker
CA1046158A (en) Snap-on housing adapted for panel mounting of transducer
US3024323A (en) Inverted loud speaker
SE8207483L (sv) Kupol-drivorgan med rorlig spole for hogtalare samt membran for sadant drivorgan
JP2000287288A (ja) 小型マイクロホン
US1974914A (en) Diaphragm centering means
ES292737U (es) Transductor electroacustico, perfeccionado, para alarma
KR101727460B1 (ko) 스피커가 구비된 마이크 장치

Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)