GB8514189D0 - Electro-mechanical transducer diaphragm - Google Patents

Electro-mechanical transducer diaphragm

Info

Publication number
GB8514189D0
GB8514189D0 GB858514189A GB8514189A GB8514189D0 GB 8514189 D0 GB8514189 D0 GB 8514189D0 GB 858514189 A GB858514189 A GB 858514189A GB 8514189 A GB8514189 A GB 8514189A GB 8514189 D0 GB8514189 D0 GB 8514189D0
Authority
GB
United Kingdom
Prior art keywords
electro
mechanical transducer
transducer diaphragm
diaphragm
mechanical
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.)
Pending
Application number
GB858514189A
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.)
REEFGRADE Ltd
Original Assignee
REEFGRADE 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 REEFGRADE Ltd filed Critical REEFGRADE Ltd
Priority to GB858514189A priority Critical patent/GB8514189D0/en
Publication of GB8514189D0 publication Critical patent/GB8514189D0/en
Priority to GB08613473A priority patent/GB2176673A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/245—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it being a foam layer
    • 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
    • H04R7/06—Plane diaphragms comprising a plurality of sections or layers
    • H04R7/10—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact
    • 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
    • H04R7/122—Non-planar diaphragms or cones comprising a plurality of sections or layers
    • H04R7/125—Non-planar diaphragms or cones comprising a plurality of sections or layers comprising a plurality of superposed layers in contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—Fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0221—Vinyl resin
    • B32B2266/0228—Aromatic vinyl resin, e.g. styrenic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
GB858514189A 1985-06-05 1985-06-05 Electro-mechanical transducer diaphragm Pending GB8514189D0 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB858514189A GB8514189D0 (en) 1985-06-05 1985-06-05 Electro-mechanical transducer diaphragm
GB08613473A GB2176673A (en) 1985-06-05 1986-06-04 Electro-mechanical transducer diaphragm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB858514189A GB8514189D0 (en) 1985-06-05 1985-06-05 Electro-mechanical transducer diaphragm

Publications (1)

Publication Number Publication Date
GB8514189D0 true GB8514189D0 (en) 1985-07-10

Family

ID=10580209

Family Applications (2)

Application Number Title Priority Date Filing Date
GB858514189A Pending GB8514189D0 (en) 1985-06-05 1985-06-05 Electro-mechanical transducer diaphragm
GB08613473A Withdrawn GB2176673A (en) 1985-06-05 1986-06-04 Electro-mechanical transducer diaphragm

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB08613473A Withdrawn GB2176673A (en) 1985-06-05 1986-06-04 Electro-mechanical transducer diaphragm

Country Status (1)

Country Link
GB (2) GB8514189D0 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3831376A1 (en) * 1988-09-15 1990-03-22 Filip Keller Loudspeaker or microphone
FR2731579A3 (en) * 1995-03-10 1996-09-13 Focal Membrane structure for loudspeaker
DE19935596A1 (en) * 1999-08-02 2001-03-15 Moeller Plast Gmbh Acoustic component
DE19946147A1 (en) * 1999-09-27 2001-04-26 Moeller Plast Gmbh Acoustic component e.g. for use in vehicle, is fiber panel that can be stimulated to acoustic oscillation and can output sound waves, and its fibers consist of renewable material and/or synthetic material
GB9929734D0 (en) * 1999-12-16 2000-02-09 New Transducers Ltd Structural materials
FR2853803B1 (en) * 2003-04-09 2005-06-03 Focal Jmlab MEMBRANE FOR SPEAKER LOUDSPEAKER HIGH LOYALITY, MULTILAYER, MULTIMATERIAL
WO2008113815A1 (en) * 2007-03-19 2008-09-25 Anocsys Ag Diaphragm and use of the diaphragm in a loudspeaker and method for the production thereof
DE102007030665A1 (en) * 2007-07-02 2009-01-15 Norman Gerkinsmeyer Diaphragm with multi-part construction
DE102012018765B3 (en) * 2012-09-24 2014-02-20 Florat Seta Method for stiffening the membrane of a sound transducer
GB2534859B (en) * 2015-01-30 2020-06-10 B&W Group Ltd Diaphragm for a loudspeaker drive unit or a microphone
GB2538809B (en) 2015-05-29 2021-08-25 B & W Group Ltd Loudspeaker diaphragm
US10547949B2 (en) 2015-05-29 2020-01-28 EVA Automation, Inc. Loudspeaker diaphragm
US20190394595A1 (en) * 2016-04-11 2019-12-26 4A Manufacturing Gmbh Membrane Plate Structure For Generating Sound Waves
TWI767892B (en) * 2016-11-04 2022-06-21 香港商比特聯創（控股）有限公司 Diaphragm for speaker
CN110024420A (en) * 2016-11-29 2019-07-16 B & W集团有限公司 The diaphragm of loudspeaker

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2225710C3 (en) * 1971-05-28 1975-12-04 Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka Diaphragm for electroacoustic transducers and process for their manufacture
GB1563511A (en) * 1976-03-19 1980-03-26 Harwood H Diaphragms for electroacoustic transducers
GB1593272A (en) * 1977-09-13 1981-07-15 Standard Telephones Cables Ltd Electro-acoustic transducers
JPS57208792A (en) * 1981-06-19 1982-12-21 Hitachi Ltd Diaphragm speaker packed with foamed resin
NL8200690A (en) * 1982-02-22 1983-09-16 Philips Nv SPEAKER MEMBRANE CONTAINING A LAYER OF POLYMETHACRYLIMIDE FOAM.

Also Published As

Publication number Publication date
GB2176673A (en) 1986-12-31
GB8613473D0 (en) 1986-07-09

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