GB1575549A - Speaker diaphragm - Google Patents

Speaker diaphragm Download PDF

Info

Publication number
GB1575549A
GB1575549A GB40218/77A GB4021877A GB1575549A GB 1575549 A GB1575549 A GB 1575549A GB 40218/77 A GB40218/77 A GB 40218/77A GB 4021877 A GB4021877 A GB 4021877A GB 1575549 A GB1575549 A GB 1575549A
Authority
GB
United Kingdom
Prior art keywords
film
diaphragm
speaker
speaker diaphragm
diaphragms
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
GB40218/77A
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of GB1575549A publication Critical patent/GB1575549A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
GB40218/77A 1976-09-30 1977-09-27 Speaker diaphragm Expired GB1575549A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11811076A JPS5343515A (en) 1976-09-30 1976-09-30 Diaphragm for speaker

Publications (1)

Publication Number Publication Date
GB1575549A true GB1575549A (en) 1980-09-24

Family

ID=14728260

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40218/77A Expired GB1575549A (en) 1976-09-30 1977-09-27 Speaker diaphragm

Country Status (5)

Country Link
US (1) US4173701A (enExample)
JP (1) JPS5343515A (enExample)
CA (1) CA1092746A (enExample)
DE (1) DE2743640C3 (enExample)
GB (1) GB1575549A (enExample)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4330662A (en) * 1980-10-27 1982-05-18 The Dow Chemical Company Ordered copolyestercarbonate resins
JPS57199397A (en) * 1981-06-01 1982-12-07 Pioneer Electronic Corp Diaphragm with flame resistance
JPS5871798A (ja) * 1981-10-26 1983-04-28 Sony Corp ダイナミツク型ヘツドホン
JPS5897999A (ja) * 1981-12-07 1983-06-10 Matsushita Electric Ind Co Ltd スピ−カ用振動板
US4487877A (en) * 1981-12-07 1984-12-11 Matsushita Electric Industrial Co., Ltd. Diaphragm for loudspeaker
DE3507726A1 (de) * 1985-03-05 1986-09-11 Standard Elektrik Lorenz Ag, 7000 Stuttgart Membran fuer planarlautsprecher
US4903308A (en) * 1988-02-10 1990-02-20 Linaeum Corporation Audio transducer with controlled flexibility diaphragm
US5198624A (en) * 1988-02-10 1993-03-30 Linaeum Corporation Audio transducer with controlled flexibility diaphragm
DE3831706A1 (de) * 1988-09-17 1990-03-22 Bayer Ag Membran fuer lautsprecher
AU2003250864A1 (en) * 2002-06-28 2004-01-19 Lofo High Tech Film Gmbh Membranes made of cast polyarylate film

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1446866A (en) * 1972-10-18 1976-08-18 Turner Machinery Ltd Arena-measruing machines

Also Published As

Publication number Publication date
CA1092746A (en) 1980-12-30
DE2743640A1 (de) 1978-04-06
JPS5343515A (en) 1978-04-19
DE2743640C3 (de) 1980-03-13
DE2743640B2 (de) 1979-07-05
US4173701A (en) 1979-11-06
JPS5546113B2 (enExample) 1980-11-21

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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

Effective date: 19960927