EP1146178A2 - Breitbandig schallabsorbierender Bauteil für Wände, Böden und Decken - Google Patents
Breitbandig schallabsorbierender Bauteil für Wände, Böden und Decken Download PDFInfo
- Publication number
- EP1146178A2 EP1146178A2 EP01106311A EP01106311A EP1146178A2 EP 1146178 A2 EP1146178 A2 EP 1146178A2 EP 01106311 A EP01106311 A EP 01106311A EP 01106311 A EP01106311 A EP 01106311A EP 1146178 A2 EP1146178 A2 EP 1146178A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- component according
- plate
- layer
- component
- openings
- 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.)
- Withdrawn
Links
- 238000001228 spectrum Methods 0.000 title 1
- 239000004033 plastic Substances 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims 1
- 239000002991 molded plastic Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 description 17
- 239000011521 glass Substances 0.000 description 6
- 239000006096 absorbing agent Substances 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- 238000005253 cladding Methods 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Images
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
-
- 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
-
- 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
-
- 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
- E04B2001/8423—Tray or frame type panels or blocks, with or without acoustical filling
- E04B2001/8428—Tray or frame type panels or blocks, with or without acoustical filling containing specially shaped acoustical bodies, e.g. funnels, egg-crates, fanfolds
-
- 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
- E04B2001/8476—Solid slabs or blocks with acoustical cavities, with or without acoustical filling
- E04B2001/848—Solid slabs or blocks with acoustical cavities, with or without acoustical filling the cavities opening onto the face of the element
- E04B2001/849—Groove or slot type openings
-
- 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
- E04B2001/8476—Solid slabs or blocks with acoustical cavities, with or without acoustical filling
- E04B2001/848—Solid slabs or blocks with acoustical cavities, with or without acoustical filling the cavities opening onto the face of the element
- E04B2001/8495—Solid slabs or blocks with acoustical cavities, with or without acoustical filling the cavities opening onto the face of the element the openings going through from one face to the other face of the element
Definitions
- the invention relates to a broadband sound absorbing Component for walls, floors and ceilings in the generic term of claim 1 genus.
- the invention is based, sound-absorbing the task To perfect components so that they are easy to manufacture less of maintaining this distance between clad wall or ceiling on the one hand and perforated depend or perforated component and a broadband absorption spectrum Offer.
- a preferred application of the invention is also that lateral limitation of roadways on which strong Noises occur around the so-called “noise barriers” Sound propagation to areas next to the streets or the like largely to contain.
- the invention is also applicable to To clad walls, floors and ceilings.
- Preferred uses are road surfaces, cladding of noise barriers, which when choosing transparent materials such as glass or Plastic, can also be made transparent, Facade components of buildings and cladding Walls, ceilings and / or floors of acoustic measuring rooms, the should remain as sound-free as possible, or from Rooms that are exposed to aggressive media, moisture, Heat or hygienic requirements only with corrosion-free, resistant and easy to clean materials, like stainless steel, aluminum.
- linings are essentially parallel to the object to be covered, i.e. Floor, ceiling and / or wall of the measuring room.
- they are also rectangular arrangements of the perforated panels and layers on the clad Structural parts or to the roadway possible.
- the panels or layers run in a noise barrier essentially vertical, while in the case of cladding by Measurement room walls also an essentially horizontal arrangement the plates or layers can expect good results.
- Tensioned micro-perforated plastic films are also possible, but also hanging blinds, curtains etc., with which the "acoustics" of a room can be designed variably.
- the layers or plates can also be used as a carrier for a additional porous and especially made of foamed plastic or serve cover layer formed from nonwoven.
- the use of a is recommended perforated layer or plate that deforms three-dimensionally is what, in particular, by deep drawing a flat component made of plastic or by injection molding or injection molding in the desired shape can be made.
- the slot width should be between 0.02 and 0.18 mm amount, while the slot length between 0.02 and 30 mm can be chosen.
- non-cutting shaping is recommended or discard in particular by stretching to Type of production of expanded metal.
- the breakthroughs in the form of fine slits and / or holes in the Layer or plate introduced. Thereby or afterwards these stretched and / or three-dimensionally by rolling without cutting deformed. In many cases it is also advisable to use the openings partially press again when rolling to make the small ones Observe miniature dimensions.
- the plate 1 is provided with an abundance of slot-like openings 2, which have a slot length 1 of 1.6 mm in particular and a width b (at the widest point) of 0.09 to 0.1 mm.
- Figure 2 shows another embodiment of the invention, the more the expanded metals previously used for other purposes corresponds.
- the plate 1 with a layer thickness L of 0.5 mm first slit open with a knife bar and stretched so that the narrow slots are about spread diamond-shaped openings 2, simultaneously a chipless rejection of the originally flat surface of the Plate 1 is done.
- the slot width b is in the finished Component according to Figure 2 about 0.1 mm with a web width c of about 0.03 mm. The representation is not to scale.
- the number of slots is 1000 / m over the length of the component and the number of slots 400 / m across the width or height of the installation part, i.e. parallel for the longitudinal extent LE of the slot-shaped openings 2.
- the plate 1 made of polypropylene has a hole 2 with a substantially circular cross section at a certain point.
- the hole 2 has a diameter D of, for example, 0.5 mm.
- the acoustic waves W A impinging on the perforated plate 1 are largely reflected as reflection waves W R on the surface of the perforated plate 1, while another portion, namely the waves W D passing through, penetrates into the hole 2 and has physical effects in the gas volume located there initiated, which lead to a much larger absorption of the total incident waves than this corresponds to the hole area ratio LV.
- the component with other layers is one multilayer absorber element connected. You can several individual layers 1 by choosing the right one Perforation again compared to a single layer lead to a significant increase in broadband. Especially in low frequency range this allows absorption continue to improve. Spacers 11 hold the individual layers 1 forming air layers or gaps 12 in Distance from each other.
- Figure 6 is the attachment of one of four individual layers existing multilayer absorber element in front of a wall 10 shown schematically in cross section. Here too are spacers 11 used.
- FIG. 7 there is a corresponding multilayer absorber attached to both sides of a noise barrier 10.
- the Spacers can also be called “cassettes”, i.e. on four sides delimited by walls and on the two end faces open box-like structures.
- FIG 8 are in front of the wall 10 and at right angles this the individual plates 1 immediately after this at a distance from each other and at right angles to Wall 10 arranged.
- the component arrangement can be in the manner of a "Shelving system” but also in the manner of a “honeycomb system” in particular rectangular honeycomb structure.
- the elevation is one of the walls 10 bounded Measuring room shown.
- the walls 10 are inside with a multilayer structure of flat component plates according to the invention 1 shown, which are separated from one another by spacers are.
- Figure 10 is a floor or road surface in cross section shown, which in turn consists of several layers 1 of the invention Perforation is built up at a distance from each other are arranged one above the other and especially different Have perforations.
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Architecture (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
- Laminated Bodies (AREA)
Abstract
Description
- Figur 1
- eine schematischen Aufsicht auf einen Teil des Bauteils in wesentlich vergrößerter Darstellung und
- Figur 2
- eine schematische Teilansicht auf einen als Streckmetall ausgebildeten Bauteil gemäß der Erfindung;
- Figur 3
- einen stark vergrößerten Teilausschnitt aus einem erfindungsgemäßen Bauteil im Bereich einer Durchbrechung;
- Figur 4
- eine Draufsicht auf den Bereich des Teils von Figur 3 rings um die Durchbrechung mit kreisförmigem Querschnitt;
- Figuren 5 bis 10
- Beispiele für die Anordnung des erfindungsgemäßen Bauteils
Claims (14)
- Breitbandig schallabsorbierender Bauteil für Wände, Böden und Decken mit mindestens einer gelochten bzw. perforierten Platte und/oder Schicht (1) einer Dicke von weniger als 50 mm, bei der die Durchbrechungen (2) einen mittleren Durchmesser (D) und/oder eine mittlere Breite (b) von weniger als 2 mm und ein Lochflächenverhältnis (LV) (Verhältnis der von den Durchbrechungen eingenommenen Fläche zur Gesamtfläche) von nicht mehr als 20 % aufweisen,
gekennzeichnet durch die Kombination folgender Merkmale:a) Der mittlere Durchmesser (D) bzw. die mittlere Breite (b) der Durchbrechungen (2) beträgt zwischen 0,001 und 2 mm, insbesondere zwischen 0,02 mm und 0,1 mm,b) die Schicht- bzw. Plattendicke (L) beträgt zwischen 0,01 und 50 mm, insbesondere zwischen 0,051 und 1,9 mm mit Ausnahme von 0,1 mm, undc) das Lochflächenverhältnis (LV) beträgt zwischen 0,1% und 20%, inbesondere zwischen 3 und 10%. - Bauteil nach Anspruch 1, ausgebildet als Lärmschutzwandteil neben Fahrbahnwegen, wie Straßen oder Schienenwegen.
- Bauteil nach Anspruch 1, ausgebildet als Boden- insbesondere Fahrbahnbelag.
- Bauteil nach Anspruch 1, ausgebildet als Fassaden-Bauelement von Bauwerken.
- Bauteil nach Anspruch 1, ausgebildet als Bauelement für die Begrenzung von Akustik-Meßräumen.
- Bauteil nach einem der vorhergehenden Ansprüche,
gekennzeichnet durch die Anordnung im wesentlichen parallel zum Boden, zur Decke und/oder zur Meßraumwand. - Bauteil nach einem der Ansprüche 1 bis 5,
gekennzeichnet durch die Anordnung im wesentlichen vertikal und im wesentlichen rechtwinklig zum Fahrbahnweg. - Bauteil nach einem der Ansprüche 1 bis 5,
gekennzeichnet durch die im wesentlichen horizontale Anordnung im wesentlichen rechtwinklig zur Meßraumwand. - Bauteil nach einem der vorhergehenden Ansprüche,
dadurch gekenzeichnet, daß die Durchbrechungen (2) als feine Schlitze in der Schicht oder Platte (1) mit einer Schlitzbreite (b) zwischen 0,02 und 0,18 mm und eine Schlitzlänge (1) zwischen 0,02 und 30 mm ausgebildet und der Bereich um Durchbrechungen (2) spanlos verformt bzw. spanlos verworfen, insbesondere gestreckt ist. - Bauteil nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß die gelochte Schicht bzw. Platte (1) als Träger für eine poröse und insbesondere aus geschäumtem Kunststoff oder Vliesstoff gebildete Abdeckschicht dient. - Bauteil nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß die gelochte Schicht bzw. Platte (1) dreidimensional ge- oder verformt ist. - Bauteil nach Anspruch 11, dadurch gekennzeichnet, daß die gelochte Schicht bzw. Platte (1) als tiefgezogenes oder spritzgegossenes Kunststoffteil ausgebildet ist.
- Bauteil nach Anspruch 12,
dadurch gekennzeichnet, daß der Kunststoffteil transparent bzw. lichtdurchlässig ist. - Bauteil nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß die gelochte Schicht bzw. Platte (1) aus verpreßten, verklebten und/oder verschmolzenen Fasern gebildet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20006946U DE20006946U1 (de) | 2000-04-14 | 2000-04-14 | Breitbandig schallabsorbierender Bauteil für Wände, Böden und Decken |
DE20006946U | 2000-04-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1146178A2 true EP1146178A2 (de) | 2001-10-17 |
EP1146178A3 EP1146178A3 (de) | 2003-10-22 |
Family
ID=7940304
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01106311A Withdrawn EP1146178A3 (de) | 2000-04-14 | 2001-03-15 | Breitbandig schallabsorbierender Bauteil für Wände, Böden und Decken |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1146178A3 (de) |
DE (1) | DE20006946U1 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006101403A1 (en) | 2005-03-23 | 2006-09-28 | Deamp As | Sound absorbent |
EP2256722A1 (de) * | 2009-05-29 | 2010-12-01 | Akusik & Innovation GmbH | Schalldämpfendes bzw. -absorbierendes Material |
EP1873751B1 (de) | 2006-06-29 | 2017-09-27 | United Technologies Corporation | Viskothermaler Liner ohne Echo |
EP3137697A4 (de) * | 2014-04-29 | 2017-12-27 | Deamp AS | Schallabsorbierendes material, verfahren zur herstellung davon und vorrichtung zum schneiden von öffnungen in das schallabsorbierende material |
US11254087B2 (en) * | 2017-04-26 | 2022-02-22 | Corning Incorporated | Micro-perforated glass laminates and methods of making the same |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10147645A1 (de) * | 2001-09-27 | 2003-04-10 | Faist Automotive Gmbh & Co Kg | Schallabschirmelement und Verfahren zur Herstellung |
ITPG20060027A1 (it) * | 2006-04-03 | 2007-10-04 | Vincenzo Tognaccini | Pannello fonoassorbente-fonoisolante-trasparente (p.f.f.t.)per realizzare barriere antirumore stradali o ferroviarie |
DE102022115001A1 (de) | 2022-06-14 | 2023-12-14 | Friedrich Graepel Aktiengesellschaft | Verfahren zur Herstellung eines mikroperforierten Metallbleches, Metallblech und Verwendungen eines Metallblechs |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4315759C1 (de) | 1993-05-11 | 1994-05-05 | Fraunhofer Ges Forschung | Schallabsorbierendes Glas- oder transparentes Kunstglasbauteil |
EP0697051B1 (de) | 1993-04-20 | 1997-01-02 | Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. | Unterdecke |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2517714A1 (fr) * | 1981-12-09 | 1983-06-10 | Harnois Georges | Procede et dispositif pour la realisation d'une aire de circulation ou plate-forme, sensiblement plane |
FR2582847B1 (fr) * | 1985-05-31 | 1988-12-09 | Vibrasonic | Dispositif destine a absorber les ondes sonores |
WO1994024382A1 (de) * | 1993-04-20 | 1994-10-27 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Unterdecke |
DE4316843A1 (de) * | 1993-05-19 | 1994-11-24 | Messer Griesheim Gmbh | Verfahren zum Perforieren von räumlichen oder ebenen Bauteilen |
SE506188C2 (sv) * | 1996-01-25 | 1997-11-17 | Dale Edward Knipstein | Ljudabsorberande element samt förfarande för framställning av detta element samt användning av elementet |
DE19754107C1 (de) * | 1997-12-05 | 1999-02-25 | Fraunhofer Ges Forschung | Schallabsorber |
IT1305514B1 (it) * | 1998-07-03 | 2001-05-09 | Sist Barriere Stradali S R L | Barriera di sicurezza per rilevati stradali |
-
2000
- 2000-04-14 DE DE20006946U patent/DE20006946U1/de not_active Expired - Lifetime
-
2001
- 2001-03-15 EP EP01106311A patent/EP1146178A3/de not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0697051B1 (de) | 1993-04-20 | 1997-01-02 | Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. | Unterdecke |
DE4315759C1 (de) | 1993-05-11 | 1994-05-05 | Fraunhofer Ges Forschung | Schallabsorbierendes Glas- oder transparentes Kunstglasbauteil |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006101403A1 (en) | 2005-03-23 | 2006-09-28 | Deamp As | Sound absorbent |
US7677359B2 (en) | 2005-03-23 | 2010-03-16 | Deamp As | Sound absorbent |
EP1861554A4 (de) * | 2005-03-23 | 2010-05-05 | Deamp As | Schallabsorbierer |
EP1861554B1 (de) | 2005-03-23 | 2016-10-19 | Deamp AS | Schallabsorber |
EP1873751B1 (de) | 2006-06-29 | 2017-09-27 | United Technologies Corporation | Viskothermaler Liner ohne Echo |
EP2256722A1 (de) * | 2009-05-29 | 2010-12-01 | Akusik & Innovation GmbH | Schalldämpfendes bzw. -absorbierendes Material |
EP3137697A4 (de) * | 2014-04-29 | 2017-12-27 | Deamp AS | Schallabsorbierendes material, verfahren zur herstellung davon und vorrichtung zum schneiden von öffnungen in das schallabsorbierende material |
US11254087B2 (en) * | 2017-04-26 | 2022-02-22 | Corning Incorporated | Micro-perforated glass laminates and methods of making the same |
Also Published As
Publication number | Publication date |
---|---|
DE20006946U1 (de) | 2001-08-16 |
EP1146178A3 (de) | 2003-10-22 |
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