CA1009156A - Carbon fiber strengthened speaker cone - Google Patents

Carbon fiber strengthened speaker cone

Info

Publication number
CA1009156A
CA1009156A CA207,489A CA207489A CA1009156A CA 1009156 A CA1009156 A CA 1009156A CA 207489 A CA207489 A CA 207489A CA 1009156 A CA1009156 A CA 1009156A
Authority
CA
Canada
Prior art keywords
carbon fiber
speaker cone
fiber strengthened
strengthened
speaker
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
CA207,489A
Other languages
English (en)
Other versions
CA207489S (en
Inventor
Samuel M. Boszor
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.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
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 Union Carbide Corp filed Critical Union Carbide Corp
Application granted granted Critical
Publication of CA1009156A publication Critical patent/CA1009156A/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)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
CA207,489A 1973-09-21 1974-08-21 Carbon fiber strengthened speaker cone Expired CA1009156A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US399319A US3930130A (en) 1973-09-21 1973-09-21 Carbon fiber strengthened speaker cone

Publications (1)

Publication Number Publication Date
CA1009156A true CA1009156A (en) 1977-04-26

Family

ID=23579084

Family Applications (1)

Application Number Title Priority Date Filing Date
CA207,489A Expired CA1009156A (en) 1973-09-21 1974-08-21 Carbon fiber strengthened speaker cone

Country Status (4)

Country Link
US (1) US3930130A (enrdf_load_stackoverflow)
JP (1) JPS557755B2 (enrdf_load_stackoverflow)
CA (1) CA1009156A (enrdf_load_stackoverflow)
GB (1) GB1487942A (enrdf_load_stackoverflow)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5427250B2 (enrdf_load_stackoverflow) * 1974-12-17 1979-09-08
JPS528817A (en) * 1975-07-10 1977-01-24 Matsushita Electric Ind Co Ltd Speaker
JPS5289912A (en) * 1976-01-22 1977-07-28 Toho Beslon Co Speaker cone
GB1563511A (en) * 1976-03-19 1980-03-26 Harwood H Diaphragms for electroacoustic transducers
JPS5345230A (en) * 1976-10-04 1978-04-22 Sanyo Electric Co Ltd Vibrating plate for speaker
US4308094A (en) * 1977-02-02 1981-12-29 Sanyo Electric Co., Ltd. Diaphragm for speaker and method of producing same
US4112168A (en) * 1977-03-23 1978-09-05 Motorola, Inc. High stiffness speaker cone
DE2941644C2 (de) * 1978-10-17 1982-11-11 Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka Lautsprechermembran und Verfahren zu ihrer Herstellung
US4460060A (en) * 1980-03-07 1984-07-17 Toray Industries, Inc. Vibratory diaphragm for loudspeaker
US4410768A (en) * 1980-07-23 1983-10-18 Nippon Gakki Seizo Kabushiki Kaisha Electro-acoustic transducer
JPS57199397A (en) * 1981-06-01 1982-12-07 Pioneer Electronic Corp Diaphragm with flame resistance
DE3173308D1 (en) * 1981-08-27 1986-02-06 Toray Industries Vibrating plate for speaker
NL8301653A (nl) * 1983-05-10 1984-12-03 Philips Nv Elektro-akoestische omzetter met een luchtdoorlatend membraan.
JPS6032235U (ja) * 1983-08-06 1985-03-05 トヨタ自動車株式会社 携帯用罐
US4552243A (en) * 1984-05-03 1985-11-12 Pioneer Industrial Components, Inc. Diaphragm material for acoustical transducer
GB2334851B (en) * 1999-02-08 2000-01-12 Joseph Harold Stephens A loudspeaker/microphone
JP2001189990A (ja) * 1999-12-28 2001-07-10 Jsp Corp スピーカー振動板用素材及びスピーカー振動板
EP1509338A1 (en) * 2002-06-06 2005-03-02 Fabbrica Italiana Accumulatori Motocarri Montecchio - F.I.A.M.M. S.p.A. Acoustic-signal emitting device for vehicles
GB2549955A (en) * 2016-05-03 2017-11-08 4A Mfg Gmbh Membrane plate structure for generating sound waves

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2974204A (en) * 1954-07-06 1961-03-07 Kane Corp Du Transducer
US3073916A (en) * 1958-11-24 1963-01-15 Muter Company Blast-proof water-proof loudspeaker
US3367812A (en) * 1962-11-14 1968-02-06 Union Carbide Corp Process of producing carbonized articles
US3539296A (en) * 1969-06-16 1970-11-10 Kimberly Clark Co Method of making carbonized cellulose fibers for incorporation in electrically conductive paper
CA866963A (en) * 1969-12-08 1971-03-23 Dayton Wright Associates Limited Audio system including electrostatic loudspeaker
US3671385A (en) * 1970-07-17 1972-06-20 Atomic Energy Commission Fibrous carbonaceous composites and method for manufacturing same

Also Published As

Publication number Publication date
JPS557755B2 (enrdf_load_stackoverflow) 1980-02-28
JPS5060216A (enrdf_load_stackoverflow) 1975-05-24
DE2444718A1 (de) 1975-04-17
US3930130A (en) 1975-12-30
GB1487942A (en) 1977-10-05
DE2444718B2 (de) 1977-02-10

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