DE2254292B2 - Membran fuer elektroakustische wandler und verfahren zu ihrer herstellung - Google Patents

Membran fuer elektroakustische wandler und verfahren zu ihrer herstellung

Info

Publication number
DE2254292B2
DE2254292B2 DE19722254292 DE2254292A DE2254292B2 DE 2254292 B2 DE2254292 B2 DE 2254292B2 DE 19722254292 DE19722254292 DE 19722254292 DE 2254292 A DE2254292 A DE 2254292A DE 2254292 B2 DE2254292 B2 DE 2254292B2
Authority
DE
Germany
Prior art keywords
membrane
membranes
film material
markings
marking
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.)
Granted
Application number
DE19722254292
Other languages
German (de)
English (en)
Other versions
DE2254292C3 (enExample
DE2254292A1 (de
Inventor
Tadashi Tokorozawa Saitama Itagaki (Japan)
Original Assignee
Pioneer Electronic Corp., Tokio; Tokorozawa Electronics Corp., Tokorozawa, Saitama; (Japan)
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 Pioneer Electronic Corp., Tokio; Tokorozawa Electronics Corp., Tokorozawa, Saitama; (Japan) filed Critical Pioneer Electronic Corp., Tokio; Tokorozawa Electronics Corp., Tokorozawa, Saitama; (Japan)
Publication of DE2254292A1 publication Critical patent/DE2254292A1/de
Publication of DE2254292B2 publication Critical patent/DE2254292B2/de
Application granted granted Critical
Publication of DE2254292C3 publication Critical patent/DE2254292C3/de
Granted 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
    • 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
    • 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
    • H04R7/04—Plane diaphragms
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49005—Acoustic transducer

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Manufacturing & Machinery (AREA)
  • Multimedia (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
DE19722254292 1971-11-08 1972-11-06 Membran fuer elektroakustische wandler und verfahren zu ihrer herstellung Granted DE2254292B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10320071 1971-11-08
JP1971103200U JPS5116284Y2 (enExample) 1971-11-08 1971-11-08

Publications (3)

Publication Number Publication Date
DE2254292A1 DE2254292A1 (de) 1973-05-17
DE2254292B2 true DE2254292B2 (de) 1976-04-22
DE2254292C3 DE2254292C3 (enExample) 1976-11-25

Family

ID=14347860

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19722254292 Granted DE2254292B2 (de) 1971-11-08 1972-11-06 Membran fuer elektroakustische wandler und verfahren zu ihrer herstellung

Country Status (3)

Country Link
US (1) US3835265A (enExample)
JP (1) JPS5116284Y2 (enExample)
DE (1) DE2254292B2 (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4467979A (en) * 1982-02-01 1984-08-28 Noma Inc. Cord reel
EP0185833A1 (en) * 1984-12-27 1986-07-02 Audiotecnica Italina srl Membrane in plastic materials for loudspeakers
JP3512087B2 (ja) * 1999-06-15 2004-03-29 日本電気株式会社 パネルスピーカ
US6438249B1 (en) 2000-02-15 2002-08-20 Soundtube Entertainment, Inc Open back acoustic speaker module
US7440581B2 (en) 2000-04-12 2008-10-21 Soundtube Entertainment, Inc. Backpack with integrated speakers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1688730A (en) * 1928-10-23 Best available cop
US1626743A (en) * 1925-02-21 1927-05-03 American Telephone & Telegraph Cone loud-speaker diaphragm
US2030501A (en) * 1934-01-31 1936-02-11 Rca Corp Loudspeaker cone diaphragm and method of producing same
US2044608A (en) * 1935-05-03 1936-06-16 Du Pont Viscoloid Co Diaphragm for electrical reproduction of sound

Also Published As

Publication number Publication date
US3835265A (en) 1974-09-10
JPS4875630U (enExample) 1973-09-19
JPS5116284Y2 (enExample) 1976-04-28
DE2254292A1 (de) 1973-05-17

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977
8339 Ceased/non-payment of the annual fee