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WO2001045460A3 - Structural materials used in the faceskins of sandwich panels - Google Patents

Structural materials used in the faceskins of sandwich panels Download PDF

Info

Publication number
WO2001045460A3
WO2001045460A3 PCT/GB2000/004825 GB0004825W WO0145460A3 WO 2001045460 A3 WO2001045460 A3 WO 2001045460A3 GB 0004825 W GB0004825 W GB 0004825W WO 0145460 A3 WO0145460 A3 WO 0145460A3
Authority
WO
WIPO (PCT)
Prior art keywords
faceskins
materials used
structural materials
sandwich panels
core
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.)
Ceased
Application number
PCT/GB2000/004825
Other languages
French (fr)
Other versions
WO2001045460A2 (en
Inventor
Charles Bream
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.)
NVF Tech Ltd
Original Assignee
New Transducers 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 New Transducers Ltd filed Critical New Transducers Ltd
Priority to AU21988/01A priority Critical patent/AU2198801A/en
Publication of WO2001045460A2 publication Critical patent/WO2001045460A2/en
Publication of WO2001045460A3 publication Critical patent/WO2001045460A3/en
Anticipated expiration legal-status Critical
Ceased 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
    • H04R7/04—Plane diaphragms
    • H04R7/06—Plane diaphragms comprising a plurality of sections or layers
    • 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
    • H04R7/045—Plane diaphragms using the distributed mode principle, i.e. whereby the acoustic radiation is emanated from uniformly distributed free bending wave vibration induced in a stiff panel and not from pistonic motion

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Laminated Bodies (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

A composite panel (22) comprising a core (24) sandwiched between two faceskins (26). Each faceskin (26) is reinforced with a low weight fibrous veil. The faceskins (26) are bonded to the core (24) using layers of adhesive (28).
PCT/GB2000/004825 1999-12-16 2000-12-15 Structural materials used in the faceskins of sandwich panels Ceased WO2001045460A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU21988/01A AU2198801A (en) 1999-12-16 2000-12-15 Structural materials

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9929734.3A GB9929734D0 (en) 1999-12-16 1999-12-16 Structural materials
GB9929734.3 1999-12-16

Publications (2)

Publication Number Publication Date
WO2001045460A2 WO2001045460A2 (en) 2001-06-21
WO2001045460A3 true WO2001045460A3 (en) 2002-03-21

Family

ID=10866433

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2000/004825 Ceased WO2001045460A2 (en) 1999-12-16 2000-12-15 Structural materials used in the faceskins of sandwich panels

Country Status (3)

Country Link
AU (1) AU2198801A (en)
GB (1) GB9929734D0 (en)
WO (1) WO2001045460A2 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2598090A (en) * 1950-01-31 1952-05-27 Rca Corp Moistureproof protective membrane material and method of making same
US4112168A (en) * 1977-03-23 1978-09-05 Motorola, Inc. High stiffness speaker cone
GB2176673A (en) * 1985-06-05 1986-12-31 Reefgrade Limited Electro-mechanical transducer diaphragm
WO1997009842A2 (en) * 1995-09-02 1997-03-13 New Transducers Limited Acoustic device
WO1998042536A1 (en) * 1997-03-22 1998-10-01 New Transducers Limited Passenger vehicles incorporating loudspeakers comprising panel-form acoustic radiating elements
WO1999011490A1 (en) * 1997-09-03 1999-03-11 New Transducers Limited Trim panel comprising an integral acoustic system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2598090A (en) * 1950-01-31 1952-05-27 Rca Corp Moistureproof protective membrane material and method of making same
US4112168A (en) * 1977-03-23 1978-09-05 Motorola, Inc. High stiffness speaker cone
GB2176673A (en) * 1985-06-05 1986-12-31 Reefgrade Limited Electro-mechanical transducer diaphragm
WO1997009842A2 (en) * 1995-09-02 1997-03-13 New Transducers Limited Acoustic device
WO1998042536A1 (en) * 1997-03-22 1998-10-01 New Transducers Limited Passenger vehicles incorporating loudspeakers comprising panel-form acoustic radiating elements
WO1999011490A1 (en) * 1997-09-03 1999-03-11 New Transducers Limited Trim panel comprising an integral acoustic system

Also Published As

Publication number Publication date
GB9929734D0 (en) 2000-02-09
AU2198801A (en) 2001-06-25
WO2001045460A2 (en) 2001-06-21

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