SE500334C2 - Curved acoustic element - Google Patents
Curved acoustic elementInfo
- Publication number
- SE500334C2 SE500334C2 SE9000456A SE9000456A SE500334C2 SE 500334 C2 SE500334 C2 SE 500334C2 SE 9000456 A SE9000456 A SE 9000456A SE 9000456 A SE9000456 A SE 9000456A SE 500334 C2 SE500334 C2 SE 500334C2
- Authority
- SE
- Sweden
- Prior art keywords
- layer
- element according
- supporting layer
- walls
- perforated
- Prior art date
Links
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 6
- 239000004033 plastic Substances 0.000 claims abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 230000002787 reinforcement Effects 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 239000002390 adhesive tape Substances 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 239000011093 chipboard Substances 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 239000011120 plywood Substances 0.000 claims description 2
- 239000002985 plastic film Substances 0.000 claims 1
- 239000003365 glass fiber Substances 0.000 abstract description 4
- 239000003292 glue Substances 0.000 abstract description 2
- -1 cross veneer Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 13
- 230000003014 reinforcing effect Effects 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B1/86—Sound-absorbing elements slab-shaped
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/8209—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only sound absorbing devices
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B2001/8263—Mounting of acoustical elements on supporting structure, e.g. framework or wall surface
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B2001/8263—Mounting of acoustical elements on supporting structure, e.g. framework or wall surface
- E04B2001/8281—Flat elements mounted parallel to a supporting surface with an acoustically active air gap between the elements and the mounting surface
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B2001/8263—Mounting of acoustical elements on supporting structure, e.g. framework or wall surface
- E04B2001/829—Flat elements mounted at an angle, e.g. right angle, to the supporting surface
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B2001/8414—Sound-absorbing elements with non-planar face, e.g. curved, egg-crate shaped
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B2001/8423—Tray or frame type panels or blocks, with or without acoustical filling
- E04B2001/8442—Tray type elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B2001/8457—Solid slabs or blocks
- E04B2001/8461—Solid slabs or blocks layered
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Laminated Bodies (AREA)
- Building Environments (AREA)
Abstract
Description
500 554 såväl goda ljusreflekterande som goda ljudabsorberande egenskaper. 500 554 both good light-reflecting and good sound-absorbing properties.
Elementet skall givetvis även kunna användas för andra ändamål, t ex som hörnelement i vägghörn, som fristående eller i par samverkande och fristående ljusreflektions- och ljuddämpningselement i tak och på 5 väggar mm.The element must of course also be able to be used for other purposes, for example as corner elements in wall corners, as free-standing or in pairs of cooperating and free-standing light reflection and sound-absorbing elements in ceilings and on walls etc.
Enligt uppfinningen är konstruktionselementet välvt eller skålformat och består av ett krökt bärande skikt av plåt, plast eller liknande tunt och lätt material, där detta bärande plåtskikt på sin konkava insida, dvs plåtens inåt mot rummet vända sida, har ett 10 poröst skikt, vilket täcker åtminstone den största delen av det bärande plåtskiktets yta, och vilket är fäst mot denna yta genom limning.According to the invention, the construction element is curved or cup-shaped and consists of a curved supporting layer of sheet metal, plastic or similar thin and light material, where this supporting sheet layer on its concave inside, i.e. the side of the plate facing inwards towards the space, has a porous layer, which covers at least most of the surface of the supporting sheet layer, and which is attached to this surface by gluing.
För att förbättra elements akustiska egenskaper, och för att ge elementet låg vikt kan det vara lämpligt att det det bärande l5 plåtskiktet är perforerat. Det är också ur optisk synpunkt fördel- aktigt att det porösa innerskiktet är ljust så att det reflekterar ljuset väl.In order to improve the acoustic properties of the element, and to give the element low weight, it may be appropriate for the supporting sheet metal layer to be perforated. From an optical point of view, it is also advantageous that the porous inner layer is bright so that it reflects light well.
Uppfinningen skall nu beskrivas närmare i anslutning till bifogade ritningar, vilka visar några olika utföringsformer och 20 applikationer av konstruktionselementet enligt uppfinningen.The invention will now be described in more detail in connection with the accompanying drawings, which show some different embodiments and applications of the construction element according to the invention.
I figur 1 visas ett transversellt snitt genom en enkel utföringsform av ett konstruktionselement enligt uppfinningen. Figur 2 visar på motsvarande sätt ett liknande konstruktionselement, vilket längs sina kanter är utformat med förstärkande lådprofiler, och figur 25 3 visar en alternativ utföringsform av ett sådant förstärkt element.Figure 1 shows a transverse section through a simple embodiment of a construction element according to the invention. Figure 2 shows in a corresponding manner a similar construction element, which along its edges is formed with reinforcing drawer profiles, and figure 3 shows an alternative embodiment of such a reinforced element.
Figur 4 visar slutligen en applikation, vid vilken ett element enligt uppfinningen, försett med längsgående förstärkningslådor, är samman- kopplat längs båda lådorna med ytterligare plåtelement.Figure 4 finally shows an application in which an element according to the invention, provided with longitudinal reinforcement boxes, is connected along both boxes with further plate elements.
Det i figurerna visade konstruktionselementet 1 bildar ett välvt 30 eller skålformat element, vilket i första hand är avsett att infogas i vinkeln mellan ett tak 2 och en vägg 3 eller mellan två väggar eller mellan två andra element som är sammanfogade i vinkel mot varandra, och där taket 2 och väggen 3 resp. de båda väggarna bildar cirka 90° vinkel mot varandra. Det är emellertid uppenbart för fackmannen att 35 elementet lätt kan anpassas för infogning mellan byggnadselement som 10 l5 20 25 30 35 590 354 bildar både mindre och större vinkel mot varandra än rät vinkel, och att konstruktioneslementet 1, beroende på hur stort elementet utformas även kan fogas in över en redan befintlig skugglist 4 eller hålkälslist 5. Det är också uppenbart att konstruktionselementet 1 även kan fogas in mot befintliga akustikskivor eller vilka som helst andra vägg- eller takelement.The construction element 1 shown in the figures forms a curved or cup-shaped element, which is primarily intended to be inserted at the angle between a roof 2 and a wall 3 or between two walls or between two other elements which are joined at an angle to each other, and where the ceiling 2 and the wall 3 resp. the two walls form an angle of about 90 ° to each other. However, it is obvious to the person skilled in the art that the element can be easily adapted for insertion between building elements which form both smaller and larger angles to each other than right angles, and that the construction element 1, depending on how large the element is designed can also be is inserted over an already existing shadow strip 4 or hollow skirting strip 5. It is also obvious that the construction element 1 can also be joined against existing acoustic panels or any other wall or ceiling elements.
Konstruktionselementet består allmänt av ett bärande plåtelement 6, vilket på sin konkava sida, dvs den inåt mot rummet vända sidan, har ett skikt 7 som åtminstone i huvudsak täcker plâtelementet 6, och som har till ändamål dels att bilda ett ljuddämpande, men också ett ljusreflekterande skikt på plåtelementet 6.The construction element generally consists of a supporting plate element 6, which on its concave side, i.e. the inwardly facing side of the room, has a layer 7 which at least substantially covers the plate element 6, and which has the purpose partly to form a sound-absorbing but also a light-reflecting layer on the sheet metal element 6.
Med “plåtelement" avses i detta sammanhang ett bärelement av vilket som helst material med tillräcklig böjbarhet och hållfasthet för att kunna formas och infogas på det visade sättet, t ex element av stål- eller metallplåt, plast, kryssfaner, formbakad spånskiva mm.In this context, "sheet metal element" means a support element of any material with sufficient flexibility and strength to be able to be formed and inserted in the manner shown, for example elements of sheet steel or metal, plastic, plywood, molded chipboard etc.
Ett plâtelement av järn- eller metall, t ex galvaniserad järnplât eller aluminium kan ha en tjocklek av 0,3 - 2 mm beroende på stor- leken på elementet. Ett element av plast bör vara något tjockare, och ett element av faner, spån eller annat trämaterial bör vara ännu något tjockare. Ett element av metallplåt utformas lämpligen per- forerat, dels för att förbättra de ljuddämpande egenskaperna, dels också för att göra elementet så lätt som möjligt. Perforeringen kan utformas som hål , t ex cirkulära hål anordnade i triangeldelning, eller som slitsar eller andra genombrytningar, och så att plåt- elementet får en öppen eller genombrutan area av cirka 15-50 %.A sheet metal element made of iron or metal, eg galvanized sheet iron or aluminum, can have a thickness of 0.3 - 2 mm depending on the size of the element. An element of plastic should be slightly thicker, and an element of veneer, shavings or other wood material should be even slightly thicker. A metal sheet element is suitably designed perforated, partly to improve the sound-absorbing properties, and partly also to make the element as light as possible. The perforation can be designed as holes, for example circular holes arranged in triangular division, or as slots or other openings, and so that the sheet metal element has an open or perforated area of about 15-50%.
Det ljuddämpande och ljusreflekterande innerskiktet 7 utgörs lämpligen av ett poröst skikt, t ex ett skikt av glasfiberväv eller glasfibervlies med en ytvikt av 10-300 g/m2 eller företrädesvis mellan 50 och 150 g/m2. Lämpligen utformas innerskiktet 7 med ljus färg, så att det reflekterar ljus väl. Det bör också ha en relativt slät yta, så att damm inte fastnar så lätt, och så att det kan dammas och torkas av vid behov.The sound-absorbing and light-reflecting inner layer 7 suitably consists of a porous layer, for example a layer of glass fiber fabric or glass fiber fleece with a basis weight of 10-300 g / m 2 or preferably between 50 and 150 g / m 2. Suitably, the inner layer 7 is designed with a light color, so that it reflects light well. It should also have a relatively smooth surface, so that dust does not stick so easily, and so that it can be dusted and wiped off if necessary.
Innerskiktet 7 skall företrädesvis täcka en så stor del av bärskiktets 6 inneryta som möjligt, och det kan fästas mot bärskitet med hjälp av lim, dubbelhäftande tejp eller på motsvarande sätt. 500 334 l0 l5 20 25 30 35 Det sammansatta konstruktionselementet kan tillverkas 1 löpande längder och kapas efter behov. Bredden kan varieras, men en lämplig brecc kan vara mellan 100 och 300 mm. Det är böjt 1 tvärleden 1 en båge, så att det bildar ett långsträcket, skålformat element, och det har längs vardera längsgående kanten någon form av förstärkning, som även kan tjänstgöra som fästelement 8 resp. 9, med hjälp av vilka konstruktionselementet 1 kan infogas mellan t ex taket 2 och väggen 3. Förstärknings- eller fästelementen kan 1 sin enklaste form bestå av bakåt (från isolerelementet 7) bockade, dubbelvikta kanter, eller det kan utgöras av en separat U-formad skena 10, såsom visas 1 figur 1, som spikas eller på annat sätt fästs i taket 2 och väggen 3 med de öppna spåren vända mot varandra, och 1 vilkas U-spår det sammansatta elementet 1 genom att böjas 1 båge kan föras in och därefter fjäd- rande spänna in i fästskenorna 10.The inner layer 7 should preferably cover as large a part of the inner surface of the support layer 6 as possible, and it can be attached to the support layer by means of glue, double-sided adhesive tape or in a corresponding manner. 500 334 l0 l5 20 25 30 35 The composite structural element can be manufactured in continuous lengths and cut as required. The width can be varied, but a suitable brecc can be between 100 and 300 mm. It is bent in the transverse joint 1 in an arc, so that it forms an elongate, cup-shaped element, and it has along each longitudinal edge some form of reinforcement, which can also serve as fastening element 8 resp. 9, by means of which the construction element 1 can be inserted between, for example, the roof 2 and the wall 3. The reinforcing or fastening elements 1 can in its simplest form consist of bent (from the insulating element 7) bent, double-folded edges, or it can consist of a separate U- shaped rail 10, as shown in Figure 1, which is nailed or otherwise attached to the ceiling 2 and the wall 3 with the open grooves facing each other, and 1 whose U-groove the composite element 1 can be inserted by bending in an arc and then resilient clamping into the mounting rails 10.
Det bärande, perforerade skiktet 6 och det porösa skiktet 7 utformas lämpligen så, att det sammansatta elementet får ett ström- ningsmotstånd av mellan 250 - 2000 Ns/m2.The supporting, perforated layer 6 and the porous layer 7 are suitably designed so that the composite element has a flow resistance of between 250 - 2000 Ns / m 2.
I figur 2 visas hur konstruktionselementet 1' längs sina lång- kanter utformats med lådformade förstärknings- och infästningselement 8'och 9', vilka kan limmas, spikas, skruvas mm i taket resp. väggarna. De lådformade förstärkningarna 8' och 9' kan vara "liggande" såsom visas i figur 2, eller så kan de utformas "stående" såsom visas i figur 3, varvid bärplåten 6 bockats 1 cirka 900 vinkel utåt från det porösa skiktet 7.Figure 2 shows how the construction element 1 'along its long edges is designed with box-shaped reinforcing and fastening elements 8' and 9 ', which can be glued, nailed, screwed etc. into the ceiling resp. the walls. The box-shaped reinforcements 8 'and 9' may be "horizontal" as shown in Figure 2, or they may be formed "vertical" as shown in Figure 3, the support plate 6 being bent at about 900 angles outwards from the porous layer 7.
Figur 4 visar hur ett konstruktionselement 1" enligt uppfin- ningen kan användas t ex som vertikalt hörnelemet mellan två väggstycken 11 och 12. För att konstruktionen skall få så små skarvar som möjligt har bärskiktet 6" utmed sina långkanter utformats med en S-liknande bockning 13, vilken med sin undre böj 14 täcker t ex halva bredden på den förstärkningslådan 8" resp 9", och där väggelementen 11, 12 utformats med liknande S-böjar 15 (elementet 11) eller spiral- böjar 16 (elementet 12), medelst vilka väggelementen 11 och 12 sammanfogats med hörnelementet 1" på sådant sätt att elementen nära kontaktar vararndra med sina S-formade böjar, och så att de synliga skarvarna blir så små som möjligt.Figure 4 shows how a construction element 1 "according to the invention can be used, for example, as the vertical corner member between two wall pieces 11 and 12. In order for the construction to have as small joints as possible, the support layer 6" along its long edges has been designed with an S-like bend. 13, which with its lower bend 14 covers, for example, half the width of the reinforcing box 8 "and 9", respectively, and where the wall elements 11, 12 are formed with similar S-bends 15 (element 11) or spiral bends 16 (element 12), by means of which the wall elements 11 and 12 are joined to the corner element 1 "in such a way that the elements closely contact each other with their S-shaped bends, and so that the visible joints become as small as possible.
Hänvisníngssiffror Obwmcnàwmv-I 8. 9 9| 10 11 12 13 14 15 konstruktíonselement tak vägg skugg1ist hâïkäïsïist bärpïât pøröst skikt förstärkníngsïist ïådformad förstärkning (8") förstärkningsïist, (8“) låformad förstärkning fästskena Vä99 Vä99 S-krök undre böj (1 13) undre böj spíraïböj U1 CD CD OJ OJ .EnReference Figures Obwmcnàwmv-I 8. 9 9 | 10 11 12 13 14 15 construction element roof wall shadow1ist hâïkäïsïist bearing pørost layer reinforcement ïad-shaped reinforcement (8 ") reinforcementïist, (8") lock-shaped reinforcement fastening rail Vä99 Vä99 S-bend lower bend (11) CD OreJJ. One
Claims (9)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9000456A SE500334C2 (en) | 1990-02-08 | 1990-02-08 | Curved acoustic element |
EP19910850019 EP0441759A1 (en) | 1990-02-08 | 1991-02-01 | Vaulted acoustic element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9000456A SE500334C2 (en) | 1990-02-08 | 1990-02-08 | Curved acoustic element |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9000456D0 SE9000456D0 (en) | 1990-02-08 |
SE9000456L SE9000456L (en) | 1991-08-09 |
SE500334C2 true SE500334C2 (en) | 1994-06-06 |
Family
ID=20378495
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9000456A SE500334C2 (en) | 1990-02-08 | 1990-02-08 | Curved acoustic element |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0441759A1 (en) |
SE (1) | SE500334C2 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6617002B2 (en) | 1998-07-24 | 2003-09-09 | Minnesota Mining And Manufacturing Company | Microperforated polymeric film for sound absorption and sound absorber using same |
US6977109B1 (en) | 1998-07-24 | 2005-12-20 | 3M Innovative Properties Company | Microperforated polymeric film for sound absorption and sound absorber using same |
US6598701B1 (en) | 2000-06-30 | 2003-07-29 | 3M Innovative Properties Company | Shaped microperforated polymeric film sound absorbers and methods of manufacturing the same |
SE0602831L (en) * | 2006-12-28 | 2008-06-29 | B & L Lund Ab | Ways of absorbing sound waves |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE829055C (en) * | 1949-12-28 | 1952-01-21 | Gyproc Products Ltd | Gipsformstueck and method for producing the same |
SE427364B (en) * | 1980-04-09 | 1983-03-28 | A & K Byggnadsfysik Ab | DIAGONALLY MOUNTED SOUND ABSORBENT |
DE3242940A1 (en) * | 1982-11-20 | 1984-05-24 | Hans Julius 6303 Hungen Schmitt | ACOUSTICALLY EFFECTIVE COMPONENT |
GB8529541D0 (en) * | 1985-12-05 | 1986-01-08 | Enbee Products Ltd | Coving |
GB2191518A (en) * | 1986-07-10 | 1987-12-16 | Tanya May Eccleshall | Cornice system with covered joints |
-
1990
- 1990-02-08 SE SE9000456A patent/SE500334C2/en unknown
-
1991
- 1991-02-01 EP EP19910850019 patent/EP0441759A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
SE9000456D0 (en) | 1990-02-08 |
EP0441759A1 (en) | 1991-08-14 |
SE9000456L (en) | 1991-08-09 |
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