GB1248548A - Integral laminated composite structure - Google Patents

Integral laminated composite structure

Info

Publication number
GB1248548A
GB1248548A GB1614570A GB1614570A GB1248548A GB 1248548 A GB1248548 A GB 1248548A GB 1614570 A GB1614570 A GB 1614570A GB 1614570 A GB1614570 A GB 1614570A GB 1248548 A GB1248548 A GB 1248548A
Authority
GB
United Kingdom
Prior art keywords
plastics
backing member
outer layer
metal
laminate
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
GB1614570A
Inventor
Gerald Brent Elder
Armand Francis Lewis
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.)
Wyeth Holdings LLC
Original Assignee
American Cyanamid Co
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 American Cyanamid Co filed Critical American Cyanamid Co
Publication of GB1248548A publication Critical patent/GB1248548A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/172—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Laminated Bodies (AREA)
  • Building Environments (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

1,248,548. Acoustical laminate. AMERICAN CYANAMID CO. 6 April, 1970 [19 May, 1969], No. 16145/70. Heading B5N. A laminate comprises a non-reticulated perforated outer metal or plastics layer having a thickness of from 1 to 250 mils. and a thicker, non-reticulated cavitated backing member which is either a sheet of metal or plastics having cavities at least 10% and not more than 90% through the cross-section thereof or a perforated metal or plastics layer having bonded thereto on the side opposite said outer layer a layer of metal or plastics, said backing member having a thickness of from 5 to 1000 mils. and at least, on the average three cavities per square inch of surface area, and the outer layer being bonded on the cavitated side of said backing member; the laminate having the following further characteristics: (i) the open area of said outer layer and said backing member ranges from 15% to 80%; (ii) the perforations in said outer layer and the cavities in said backing member are substantially devoid of adhesive or plastics material; (iii) the ratio of the shortest diameter (as defined) of a cavity or perforation to the distance between the centre of the cavity or perforation and the centres of adjacent cavities or perforations, respectively, is at least 0À5 but less than 1À0; (iv) at least nine, on the average, of the perforations of said outer layer are positioned over each cavity of said backing member; and (v) there are at least 50 acoustically active holes per square inch of laminate. Many adhesives and plastics and metal layers are specified, aluminium and steel being preferred. The laminates exhibit acoustical properties.
GB1614570A 1969-05-19 1970-04-06 Integral laminated composite structure Expired GB1248548A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US82556569A 1969-05-19 1969-05-19

Publications (1)

Publication Number Publication Date
GB1248548A true GB1248548A (en) 1971-10-06

Family

ID=25244326

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1614570A Expired GB1248548A (en) 1969-05-19 1970-04-06 Integral laminated composite structure

Country Status (4)

Country Link
JP (1) JPS4944493B1 (en)
DE (1) DE2024363A1 (en)
GB (1) GB1248548A (en)
SE (1) SE353755B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3344245A1 (en) * 1982-12-27 1984-06-28 Armstrong World Industries, Inc., Lancaster, Pa. SOUND ABSORBING PANEL MATERIAL
EP0129027A2 (en) * 1983-05-03 1984-12-27 Gerhard Dr.-Ing. Feld Method of perforating foils and sheetings of plastic or rubber
CN114248501A (en) * 2020-09-23 2022-03-29 华为技术有限公司 Casing, vibration subassembly and vehicle

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9300152U1 (en) * 1993-01-08 1993-03-11 Wilhelmi Werke Gmbh & Co Kg, 6335 Lahnau, De
DE29803675U1 (en) * 1998-03-03 1999-07-15 Faist M Gmbh & Co Kg Soundproofing shield

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3344245A1 (en) * 1982-12-27 1984-06-28 Armstrong World Industries, Inc., Lancaster, Pa. SOUND ABSORBING PANEL MATERIAL
FR2538302A1 (en) * 1982-12-27 1984-06-29 Armstrong World Ind Inc STRUCTURE ABSORBING SOUNDS COVERED WITH VINYL
GB2132556A (en) * 1982-12-27 1984-07-11 Armstrong World Ind Inc Sound absorbing board structure
EP0129027A2 (en) * 1983-05-03 1984-12-27 Gerhard Dr.-Ing. Feld Method of perforating foils and sheetings of plastic or rubber
EP0129027A3 (en) * 1983-05-03 1987-07-01 Gerhard Dr.-Ing. Feld Method of perforating foils and sheetings of plastic or rubber
CN114248501A (en) * 2020-09-23 2022-03-29 华为技术有限公司 Casing, vibration subassembly and vehicle

Also Published As

Publication number Publication date
SE353755B (en) 1973-02-12
DE2024363A1 (en) 1970-11-26
JPS4944493B1 (en) 1974-11-28

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