GB1381376A - Method of manufacturing a diaphragm for a transducer - Google Patents

Method of manufacturing a diaphragm for a transducer

Info

Publication number
GB1381376A
GB1381376A GB3999572A GB3999572A GB1381376A GB 1381376 A GB1381376 A GB 1381376A GB 3999572 A GB3999572 A GB 3999572A GB 3999572 A GB3999572 A GB 3999572A GB 1381376 A GB1381376 A GB 1381376A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
foil
conductive strips
moulding
transducer
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
GB3999572A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1381376A publication Critical patent/GB1381376A/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
    • H04R7/127—Non-planar diaphragms or cones dome-shaped
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • H04R31/003—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor for diaphragms or their outer suspension
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/01—Manufacture or treatment
    • H10N30/09—Forming piezoelectric or electrostrictive materials
    • H10N30/098—Forming organic materials

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Manufacturing & Machinery (AREA)
  • Multimedia (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
GB3999572A 1971-09-01 1972-08-29 Method of manufacturing a diaphragm for a transducer Expired GB1381376A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7112001A NL7112001A (enrdf_load_stackoverflow) 1971-09-01 1971-09-01

Publications (1)

Publication Number Publication Date
GB1381376A true GB1381376A (en) 1975-01-22

Family

ID=19813920

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3999572A Expired GB1381376A (en) 1971-09-01 1972-08-29 Method of manufacturing a diaphragm for a transducer

Country Status (12)

Country Link
JP (1) JPS5410854B2 (enrdf_load_stackoverflow)
AT (1) AT318034B (enrdf_load_stackoverflow)
AU (1) AU471029B2 (enrdf_load_stackoverflow)
CA (1) CA990037A (enrdf_load_stackoverflow)
CH (1) CH540768A (enrdf_load_stackoverflow)
DE (1) DE2239743C3 (enrdf_load_stackoverflow)
ES (1) ES406184A1 (enrdf_load_stackoverflow)
FR (1) FR2151047B1 (enrdf_load_stackoverflow)
GB (1) GB1381376A (enrdf_load_stackoverflow)
IT (1) IT964359B (enrdf_load_stackoverflow)
NL (1) NL7112001A (enrdf_load_stackoverflow)
SE (1) SE379914B (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6281183B1 (en) 1999-03-17 2001-08-28 Unilever Home & Personal Care, Division Of Conopco, Inc. Process for producing a water soluble package
US6363693B1 (en) 1999-03-17 2002-04-02 Unilever Home & Personal Care, Usa Process for producing a water soluble package
US6378274B1 (en) 1999-03-17 2002-04-30 Unilever Home & Personal Care Usa Division Of Conopco, Inc. Process for producing a water soluble package

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2941644C2 (de) * 1978-10-17 1982-11-11 Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka Lautsprechermembran und Verfahren zu ihrer Herstellung
JPS5572391U (enrdf_load_stackoverflow) * 1978-11-11 1980-05-19
DE2929432C2 (de) * 1979-07-20 1981-08-13 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Verfahren zur Herstellung eines elektrodynamischen Wandlers
FR2477823A1 (fr) * 1980-03-04 1981-09-11 Thomson Csf Procede de fabrication de transducteurs electromecaniques utilisant au moins un film en polymere et dispositif destine a la mise en oeuvre de ce procede
FR2522241A1 (fr) * 1982-02-22 1983-08-26 Thomson Csf Procede de fabrication de transducteurs polymeres piezoelectriques par forgeage
DE3339101A1 (de) * 1983-10-28 1984-08-23 Martin 6600 Saarbrücken Hauck Membrane fuer einen lautsprecher
US5388976A (en) * 1992-02-27 1995-02-14 Friedrich Theyson Gmbh Wall thickness measuring device with calibration device
JP2882969B2 (ja) * 1993-04-09 1999-04-19 株式会社ケンウッド フィルム成型方法及び成型装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6281183B1 (en) 1999-03-17 2001-08-28 Unilever Home & Personal Care, Division Of Conopco, Inc. Process for producing a water soluble package
US6363693B1 (en) 1999-03-17 2002-04-02 Unilever Home & Personal Care, Usa Process for producing a water soluble package
US6378274B1 (en) 1999-03-17 2002-04-30 Unilever Home & Personal Care Usa Division Of Conopco, Inc. Process for producing a water soluble package

Also Published As

Publication number Publication date
FR2151047A1 (enrdf_load_stackoverflow) 1973-04-13
AT318034B (de) 1974-09-25
NL7112001A (enrdf_load_stackoverflow) 1973-03-05
JPS4833816A (enrdf_load_stackoverflow) 1973-05-14
ES406184A1 (es) 1976-01-16
AU4607172A (en) 1974-03-07
SE379914B (enrdf_load_stackoverflow) 1975-10-20
AU471029B2 (en) 1976-04-08
CA990037A (en) 1976-06-01
FR2151047B1 (enrdf_load_stackoverflow) 1978-12-29
IT964359B (it) 1974-01-21
CH540768A (de) 1973-08-31
DE2239743C3 (de) 1980-01-24
DE2239743B2 (de) 1979-05-17
JPS5410854B2 (enrdf_load_stackoverflow) 1979-05-10
DE2239743A1 (de) 1973-03-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee