EP0816583B1 - Vorrichtung zur Verminderung von Schallpegeln in Gebäuden - Google Patents
Vorrichtung zur Verminderung von Schallpegeln in Gebäuden Download PDFInfo
- Publication number
- EP0816583B1 EP0816583B1 EP97111079A EP97111079A EP0816583B1 EP 0816583 B1 EP0816583 B1 EP 0816583B1 EP 97111079 A EP97111079 A EP 97111079A EP 97111079 A EP97111079 A EP 97111079A EP 0816583 B1 EP0816583 B1 EP 0816583B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sheets
- carrier
- sound
- micro
- buildings
- 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 - Lifetime
Links
- 239000000463 material Substances 0.000 claims abstract description 11
- 238000004804 winding Methods 0.000 claims description 4
- 239000000969 carrier Substances 0.000 claims 1
- 238000005452 bending Methods 0.000 abstract 1
- 239000011888 foil Substances 0.000 description 26
- 238000010521 absorption reaction Methods 0.000 description 17
- 230000000694 effects Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 238000007096 Glaser coupling reaction Methods 0.000 description 1
- -1 Polyethylene Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 229920006289 polycarbonate film Polymers 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
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
- E04B1/8409—Sound-absorbing elements sheet-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
- 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
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/34—Grid-like or open-work ceilings, e.g. lattice type box-like modules, acoustic baffles
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/34—Grid-like or open-work ceilings, e.g. lattice type box-like modules, acoustic baffles
- E04B9/36—Grid-like or open-work ceilings, e.g. lattice type box-like modules, acoustic baffles consisting of parallel slats
- E04B9/366—Grid-like or open-work ceilings, e.g. lattice type box-like modules, acoustic baffles consisting of parallel slats the principal plane of the slats being vertical
-
- 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
- E04B2001/8423—Tray or frame type panels or blocks, with or without acoustical filling
- E04B2001/8433—Tray or frame type panels or blocks, with or without acoustical filling with holes in their face
-
- 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
- E04B2001/8452—Tray or frame type panels or blocks, with or without acoustical filling with peripheral frame members
Definitions
- the invention relates to a device for Reduction of noise levels in buildings after The preamble of claim 1 or 7.
- Such a device is by SCHNEIDER et al .: "Resoflex (new), a sound and heat insulating Filling material for double walls ", Glasers Annalen, Vol. 93, No. 9, September 1969, pages 290 and 291 become. Resoflex is a registered trademark.
- This device consists of several layers of alternately arranged airtight films and corrugated, perforated foils. The device is overall impermeable to air and due to the aforementioned construction stiff.
- DE 44 37 196 C1 is a sound absorbing Artificial glass component described, which consists of at least two perforated plastic plates, between which to Example paper strips or foils from another Material are arranged as spacers, and their Perforations are not mutually overlapping.
- the Effect of such devices for sound absorption is based according to the explanations in the text of this document, that in a variety of formed by the perforations Cavities an absorption of sound waves in front of a reverberant boundary wall in the audible frequency range takes place.
- DE 42 20 434 A1 is a Soundproofing device for buildings disclosed which a sound absorbing film, which is attached to their Side edges of sealing lips of a profile frame is bordered, which is close to the sound insulation a window or door opening of a building becomes.
- the invention has for its object a inexpensive to manufacture and versatile Device for sound insulation in rooms of a building too design that changing as easily as possible Needs can be adjusted and a broadband Sound absorption guaranteed.
- micro-perforated Foils spaced apart and parallel to each other in an upper beam made of a rigid Material and a lower one, also from one rigid material existing carrier tensioned, so that the slides by the weight of the lower, support are burdened.
- perforated foils are included a distance from each other in packets between the common upper carrier and the common lower Carrier arranged.
- Soundproofing devices with the Invention features are either individually or too several in a row like aprons in the overhead area hanging in a room or attached to fixtures.
- the training features of claim 7 provide that the attachment of the microperforated foils in the upper carrier each on a rotatable roller takes place so that the films partially or entirely on this Roll can be wound up to make one hand the setting of optimal sound absorbing effects achieve and on the other hand adaptations allow usage-related free spaces in the room.
- the device for reducing sound levels in Buildings or the like consists of or several arranged in proximity to each other Soundproofing elements 1.
- Each soundproofing element 1 is made of packets 2 arranged with a foil Microperforation built up, with two or more microperforated foils 2 parallel to each other and with a distance from one another between an upper carrier 3 made of a rigid material, for example metal, Plastic or wood, and a lower support 4, which is also made of a rigid material exists, are excited.
- the slides 2 one Sound damping element 1 thus have a common one upper carrier 3 and a common lower carrier 4th on.
- the distance of the foils 2 from each other in a horizontal Direction can be by intermediate layers of the carrier 3 and 4th be achieved as shown in the drawing.
- the lower carrier 4 is with the upper carrier 3 of each sound absorbing element 1 by a tensile securing member 5, for example by means of wire ropes arranged at intervals connected.
- FIG. 1 shows the hanging Attachment of several soundproofing elements 1 in immediate neighborhood to each other and in apron-like arrangement.
- the top beam 3 each Soundproofing element 1 is U-shaped Support bracket 6 on hanging ropes 7, chains or brackets attached.
- Figure 2 illustrates the rigid Attachment of a soundproofing element 1 to a Wall, a ledge or other fixed Component within a building room, for example by means of angled fastening clamps 8, which with the building wall 9 or the like are screwed.
- FIG. 4 schematically illustrates the arrangement of Winding rolls 10 within the upper carrier 3, wherein each micro-perforated film 2 with its upper end such a winding roll 10 runs so that the depending and thus effective film length changed can be, as previously explained. If necessary, the tensile securing member 5 combined with a corresponding rewinder his.
- the foils 2 have one in all exemplary embodiments Thickness up to (less than or equal to) 1 mm.
- the Microperforation is through holes with a diameter formed from 0.1 to 0.4 mm.
- the free cross section so the sum of all hole cross sections is 0.7 to 1.5%. It applies that with increasing film thickness also Hole diameter may increase. So the smaller the Film thickness, the smaller it should be Hole diameters can be chosen to be good To achieve absorption results.
- the above The upper limit for the hole diameter of 0.4 mm applies therefore for foils with a thickness of almost 1 mm.
- the free cross section can be independent of the film thickness to get voted.
- Fig. 5 shows a specific application.
- Two layers of microperforated foils 2.1 and 2.2 are in front of one hard wall 9 or a window arranged.
- the Distance of the first film layer 2.1 to the wall 9 or the Window is 100 mm.
- the distance between the two Foil layers 2.1 and 2.2 to each other is 30 mm.
- the absorption curve shown in FIG. 6 is based on a test with the arrangement shown in Fig. 5.
- the Foils 2.1, 2.2 had a thickness of 0.105 mm.
- the hole diameter for the Microperforation was 0.21 mm with a hole spacing of 0.2 mm, corresponding to a free cross section of 1%.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Description
- Fig. 1
- eine Vorrichtung zur Verminderung von Schallpegeln in Gebäuden, bestehend aus mehreren hintereinander angeordneten Schallschutzelementen in perspektivischer Darstellung,
- Fig. 2
- ein einzelnes Schallschutzelement mit starrer Befestigung,
- Fig. 3
- einen vertikalen Querschnitt durch das Schallschutzelement in Figur 2 und
- Fig. 4
- ein Teilschema einer aufwickelbaren Schallschutzvorrichtung.
- Fig. 5
- eine abwickelbare Schallschutzvorrichtung mit zwei Lagen von Folien,
- Fig. 6
- eine Schallabsoptionskurve zur Schallschutzvorrichtung gem. Fig. 5
- 1
- Schalldämpfungselement
- 2
- Kunststoffolie mit Mikroperforation
- 3
- Träger
- 4
- Träger
- 5
- Sicherungsglied
- 6
- Befestigungsbügel
- 7
- Hängeseil
- 8
- Befestigungsschelle
- 9
- Gebäudewand
- 10
- Wickelrolle
Claims (8)
- Vorrichtung zur Verminderung von Schallpegeln in Gebäuden mit Schalldämpfungselementen (1) aus mehreren mit einem Abstand voneinander und parallel zueinander paketweise angeordneten Folien (2), die eine Microperforation aufweisen, dadurch gekennzeichnet, daß die perforierten Folien (2) mit einem Abstand voneinander paketweise zwischen einem gemeinsamen oberen Träger (3) und einem gemeinsamen unteren Träger (4) angeordnet sind.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Folien (2) eine Microperforation mit einem Lochdurchmesser von 0,1 mm bis 0,4 mm, insbesondere 0,2 mm und einem freien Querschnitt von 0,7 % bis 1,5 %, insbesondere 1 % aufweisen.
- Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der obere Träger (3) sowie der untere Träger (4) aus einem biegesteifen Werkstoff bestehen und daß die microperforierten Folien (2) zwischen den Trägern (3,4) gespannt sowie durch das Gewicht des unteren Trägers (4) belastet sind.
- Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Folien (2) lose bzw. flexibel hängen.
- Vorrichtung nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß der obere Träger (3) und der untere Träger (4) durch zugfeste Sicherungsglieder (5) miteinander verbunden sind.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß mehrere Schalldämpfungselemente (1) schürzenartig hintereinander im Überkopfbereich, vorzugsweise an einer Raumdecke, befestigt sind.
- Vorrichtung zur Verminderung von Schallpegeln in Gebäuden mit einem Schalldämpfungselement (1) aus mehreren mit einem Abstand voneinander und parallel zueinander paketweise angeordneten Folien (2), die eine Microperforation aufweisen, gekennzeichnet durch in einem Träger gelagerte Wickelrollen (10), auf die die microperforierten Folien (2) horizontal, vertikal oder in einem Winkel zur Vertikalen aufwickelbar sind.
- Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß die Folien (2) eine Microperforation mit einem Lochdurchmesser von 0,1 mm bis 0,4 mm, insbesondere 0,2 mm und einem freien Querschnitt von 0,7 % bis 1,5 %, insbesondere 1 % aufweisen.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19626676A DE19626676A1 (de) | 1996-07-03 | 1996-07-03 | Vorrichtung zur Verminderung von Schallpegeln in Gebäuden |
DE19626676 | 1996-07-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0816583A1 EP0816583A1 (de) | 1998-01-07 |
EP0816583B1 true EP0816583B1 (de) | 2001-04-04 |
Family
ID=7798755
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97111079A Expired - Lifetime EP0816583B1 (de) | 1996-07-03 | 1997-07-02 | Vorrichtung zur Verminderung von Schallpegeln in Gebäuden |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0816583B1 (de) |
AT (1) | ATE200330T1 (de) |
DE (2) | DE19626676A1 (de) |
ES (1) | ES2157033T3 (de) |
GR (1) | GR3035886T3 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11608291B2 (en) | 2016-11-04 | 2023-03-21 | Corning Incorporated | Micro-perforated panel systems, applications, and methods of making micro-perforated panel systems |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19754107C1 (de) * | 1997-12-05 | 1999-02-25 | Fraunhofer Ges Forschung | Schallabsorber |
DE19810597A1 (de) * | 1998-03-11 | 1999-10-14 | Trenomat Gmbh & Co Kg | Trennvorhang, insbesondere hochraffbarer Trennvorhang für Sporthallen, Veranstaltungs- und Messehallen, Industriehallen, Säle o. dgl. |
DE19833031C1 (de) * | 1998-07-23 | 2000-02-10 | Kaefer Isoliertechnik | Rollo |
US6977109B1 (en) | 1998-07-24 | 2005-12-20 | 3M Innovative Properties Company | Microperforated polymeric film for sound absorption and sound absorber using same |
US6617002B2 (en) * | 1998-07-24 | 2003-09-09 | Minnesota Mining And Manufacturing Company | Microperforated polymeric film for sound absorption and sound absorber using same |
DE19901607C2 (de) * | 1998-08-07 | 2001-03-08 | Kaefer Isoliertechnik | Schalldämpfungsmittel |
EP0978600A3 (de) | 1998-08-07 | 2001-01-17 | KAEFER Isoliertechnik GmbH & Co. KG | Schalldämpfungsmittel |
DE19837164A1 (de) | 1998-08-17 | 2000-02-24 | Deutsche Verpackungsmittel | Vorrichtung zur Verminderung des Schallpegels an Verkehrswegen |
US6244378B1 (en) | 1998-12-11 | 2001-06-12 | Owens Corning Fiberglas Technology, Inc. | Dual sonic character acoustic panel and systems for use thereof |
DE10001578A1 (de) | 2000-01-15 | 2001-07-19 | Winfried Kneussle | Schallschutzwand für Verkehrswege |
AU3300900A (en) | 2000-03-20 | 2001-10-03 | Newmat, S.A. | Flexible sheet fabrics for tensile structures, method for making same, tensile false ceilings comprising 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 |
DE10041458C2 (de) * | 2000-08-23 | 2003-01-30 | Kaefer Isoliertechnik | Einrichtung zum Vermindern von Schallpegeln sowie Verkleidung in Flugzeugen, Fahrzeugen oder Schiffen |
ATE333134T1 (de) * | 2001-04-27 | 2006-08-15 | Fraunhofer Ges Forschung | Schalldämpfer |
FR2881765B1 (fr) * | 2005-02-08 | 2007-04-13 | Brevetix Sarl | Ensemble acoustiquement absorbant |
DK2054562T3 (da) * | 2006-08-10 | 2013-05-27 | Brevetix | Lydabsorberende indretning |
KR20110004418A (ko) | 2008-04-14 | 2011-01-13 | 쓰리엠 이노베이티브 프로퍼티즈 컴파니 | 다층 흡음 시트 |
JP2011519433A (ja) | 2008-04-22 | 2011-07-07 | スリーエム イノベイティブ プロパティズ カンパニー | 複合吸音シート |
EP2283480A4 (de) | 2008-05-22 | 2016-11-09 | 3M Innovative Properties Co | Mehrschichtige schallabsorbierende struktur mit einer maschenschicht |
US10508453B2 (en) | 2014-12-05 | 2019-12-17 | Eleda S.R.L. | Sound-absorbing element and system |
DE102015201320A1 (de) | 2015-01-27 | 2016-07-28 | Ford Global Technologies, Llc | Laderaumabdeckung mit schallabsorbierenden Eigenschaften |
US10900222B2 (en) * | 2018-02-17 | 2021-01-26 | Kyler Smith | Special lightweight, durable mounting system for sound foam panel and quick installation process |
USD895158S1 (en) | 2018-04-13 | 2020-09-01 | Caimi Brevetti S.P.A. | Sound absorbing panel |
USD895159S1 (en) | 2018-04-13 | 2020-09-01 | Caimi Brevetti S.P.A. | Sound absorbing panel |
USD894429S1 (en) | 2018-04-13 | 2020-08-25 | Caimi Brevetti S.P.A. | Sound absorbing panel |
EP3877605A4 (de) | 2018-11-05 | 2022-03-30 | Rockwool International A/S | Akustisches leitblechaufhängungssystem |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE752801A (fr) * | 1970-07-01 | 1970-12-16 | Metallurgie Hoboken | Panneau d'insonorisation et d'isolation thermique, |
IT1062727B (it) * | 1976-06-25 | 1984-11-10 | Fonderia Elettrica Alluminio | Struttura a lamelle sospese verticali per soffitti fonoassorbenti e fotodiffusori |
DE7726856U1 (de) * | 1977-08-30 | 1978-01-05 | Gesellschaft Fuer Akustik Und Laermbekaempfung Mbh, 8000 Muenchen | Halterung fuer akustikdecken |
DE4220434A1 (de) * | 1992-06-24 | 1994-01-05 | Peter Hoetger | Schallschutzvorrichtung für Gebäude |
DE4312885A1 (de) * | 1993-04-20 | 1994-10-27 | Fraunhofer Ges Forschung | Unterdecke |
DE4315759C1 (de) * | 1993-05-11 | 1994-05-05 | Fraunhofer Ges Forschung | Schallabsorbierendes Glas- oder transparentes Kunstglasbauteil |
DE4408782A1 (de) * | 1994-03-15 | 1995-09-21 | Fraunhofer Ges Forschung | Folien-Schallabsorber |
-
1996
- 1996-07-03 DE DE19626676A patent/DE19626676A1/de not_active Withdrawn
-
1997
- 1997-07-02 AT AT97111079T patent/ATE200330T1/de not_active IP Right Cessation
- 1997-07-02 ES ES97111079T patent/ES2157033T3/es not_active Expired - Lifetime
- 1997-07-02 EP EP97111079A patent/EP0816583B1/de not_active Expired - Lifetime
- 1997-07-02 DE DE59703273T patent/DE59703273D1/de not_active Expired - Lifetime
-
2001
- 2001-05-16 GR GR20010400742T patent/GR3035886T3/el not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11608291B2 (en) | 2016-11-04 | 2023-03-21 | Corning Incorporated | Micro-perforated panel systems, applications, and methods of making micro-perforated panel systems |
Also Published As
Publication number | Publication date |
---|---|
ES2157033T3 (es) | 2001-08-01 |
DE59703273D1 (de) | 2001-05-10 |
EP0816583A1 (de) | 1998-01-07 |
ATE200330T1 (de) | 2001-04-15 |
DE19626676A1 (de) | 1998-01-08 |
GR3035886T3 (en) | 2001-08-31 |
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