EP0965122B1 - Verfahren zur herstellung von schalldämmenden bauplatten oder oberflächen für innenräume - Google Patents

Verfahren zur herstellung von schalldämmenden bauplatten oder oberflächen für innenräume Download PDF

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Publication number
EP0965122B1
EP0965122B1 EP98903220A EP98903220A EP0965122B1 EP 0965122 B1 EP0965122 B1 EP 0965122B1 EP 98903220 A EP98903220 A EP 98903220A EP 98903220 A EP98903220 A EP 98903220A EP 0965122 B1 EP0965122 B1 EP 0965122B1
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EP
European Patent Office
Prior art keywords
panel
strips
lengthwise
concavities
holes
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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
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EP98903220A
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English (en)
French (fr)
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EP0965122A1 (de
Inventor
Oscar Avian
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Individual
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Individual
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Publication date
Priority claimed from IT97UD000045 external-priority patent/IT1290731B1/it
Priority claimed from IT97UD000135 external-priority patent/IT1295726B1/it
Application filed by Individual filed Critical Individual
Publication of EP0965122A1 publication Critical patent/EP0965122A1/de
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    • 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
    • G10K11/162—Selection of materials
    • 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
    • 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
    • E04B2001/8485—Solid slabs or blocks with acoustical cavities, with or without acoustical filling the cavities opening onto the face of the element the opening being restricted, e.g. forming Helmoltz resonators
    • 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

Definitions

  • This invention concerns a method to produce sound-proofing panels or surfaces for interiors as set forth in the main claim.
  • the sound-proofing panels or surfaces obtained by means of the invention are applied as a lining to walls or ceilings in rooms or premises where it is necessary to ensure a high level of acoustic insulation and/or sound-proofing, or as dividing or separating elements between rooms.
  • the panels or surfaces obtained by means of the invention are applied particularly, but not exclusively, in meeting rooms, conference rooms, concert halls, gymnasiums, study rooms, noisy work rooms, cinemas, theatres, hotels, television studios, recording rooms, etc.
  • the state of the art covers the use of sound-proofing elements used as an inner lining for walls and/or ceilings to reduce the noise effect in the room or premises where the elements are applied, or at least to regulate the acoustics of the room.
  • sound-proofing panels made of plaster, full section or with holes, which can be associated inside with filling and insulating material, such as glass wool, and/or lined with covering layers, for example made of plywood or other similar material.
  • One particular solution known to the state of the art and particularly appreciated by users provides to make sound-proofing panels including an inner core of composite material with a wood base, such as for example hardboard or MDF, lined at least on the visible face by a layer of covering and/or enhancing material.
  • a wood base such as for example hardboard or MDF
  • the inner core of panels has a plurality of lengthwise holes of a substantially circular section, advantageously separated at an equal distance, which extend for the entire length or height of the panel.
  • These through holes which define cavities of the appropriate volume inside the panel, communicate with the face of the panel which faces towards the room where the noise is generated by means of a plurality of slits which extend for a substantial part of the length of the panel.
  • the frequency of resonance depends on the volume of the cavity and the area of section of the slits which connect the cavity inside the space wherein the noise is generated.
  • the frequency of the slits or number per unit of width of the panel, which may coincide with the frequency of the inner through holes or be an submultiple thereof, determines the level of sound-proofing of the panel.
  • the sound-proofing capacity of this type of panel derives intrinsically from its structural configuration.
  • the sound waves generated in the room are conveyed by these lengthwise slits towards the inner holes and remain trapped there, thus preventing the noise from propagating towards the outside and generating a sound-proofing effect through the successive reverberations of the sound waves inside the holes.
  • the lengthwise slits are made during a subsequent step, with a variable frequency so as to achieve panels which are sub-divided into categories, each of which is characterised by a standardised value of sound-proofing.
  • the final panel thus obtained has to be associated, in a subsequent step, to coverings and/or linings in such a way as to make it fire-proof and/or water-proof, which involves a further increase both in production times and also in the final cost.
  • the extrusion method itself causes an arrangement of the fibres of the core in a vertical direction which is not suitable to intercept the propagation of the sound waves efficiently.
  • Another disadvantage which limits the sound-proofing capacity of the panel thus formed is that the density of the inner core of the panel is substantially uniform for the whole transverse extension of the panel and therefore there are no variations in density to accentuate the sound-proofing capacity of the panel.
  • a further disadvantage is that it is impossible for these panels to achieve an efficient sound-proofing for the whole range of frequencies to be abated because of the substantially standardised form of the lengthwise holes and the fixed length of the slits which connect them to the room wherein the noise is generated.
  • GB-A-2.027.255 describes a sound-proofing panel equipped with cavities of different volume, each of which is predetermined to absorb prevalently a specific sound frequency.
  • This solution is very complex in construction, since it requires a complex molding procedure and the introduction into the mold of insertions, of variable size, suitable to form the cavities of different volume.
  • this solution is not very efficient as far as noise absorption is concerned either, inasmuch as it causes the formation of areas of different levels of absorption which are distributed in a non-uniform manner over the space wherein the noise is generated.
  • WO 85/06240 describes a sound-proofing panel consisting of two wall elements, an inner and an outer element, between which there is a means able to allow the sound waves to propagate, such as air, for example.
  • acoustic resonators substantially spherical in shape, each of which is tuned to a specific and characteristic frequency.
  • the resonators can be an integral part of one of the wall elements, or they can be suspended between the wall elements and buried in insulating material.
  • the resonators are connected to relative throats which can be glued or welded in situ.
  • This sound-proofing panel is very complex and expensive to make, and therefore it is applied only in very specific cases where a particular standard of performance is required; it cannot be used to cover extensive surfaces such as walls and ceilings of rooms.
  • this panel requires extremely complex assembly operations which lead to even greater costs.
  • the panel requires expensive finishing operations in order to be applied in the room to which it is intended.
  • the present applicant has designed, tested and embodied this invention in order to overcome the shortcomings of the state of the art which have prevented a wider use of these panels because of their high final cost and their lack of versatility and adaptability to specific requirements of the users, and also to achieve further advantages.
  • the purpose of the invention is to obtain a method to produce sound-proofing panels, surfaces or elements for interiors in general which will make it possible to obtain a higher level of sound-proofing at a much more limited cost than that obtainable with methods known to the state of the art.
  • a further purpose of the invention is to obtain a method which will considerably reduce production times and obtain finished elements with the desired and variable characteristics, both in terms of sound-proofing and in terms of size, fire-proofing, water-proofing, insulation, and with every other type of personalisation which will meet the users' specific requirements.
  • the sound-proofing panel or surface has the structure described above, that is to say, with inner lengthwise through holes along the whole length, or height, and with lengthwise slits of the desired frequency opening onto the front surface and connecting the holes with the room wherein the noise is generated.
  • the inner lengthwise holes are obtained by matching two semi-holes or semi-concavities.
  • the panel is obtained by coupling two panels together at the front, each one of which having a plurality of open concavities on the front of its face which are substantially semi-circular and separated transversely.
  • the sound-proofing panel or surface is obtained by lateral coupling of substantially vertical sections or strips which have the semi-circular concavities on their opposite side faces.
  • the sound-proofing panel according to the invention is thus achieved during the assembly step in situ, which considerably facilitates the installation operations for the workers, and thus reduces the overall costs.
  • the method makes it possible to obtain either a finished panel or a series of elements which are assembled on site to make the finished element.
  • the semi-circular concavities are obtained by means of a mechanical process to remove material, for example, by milling.
  • the concavities are obtained by moulding, either hot or cold.
  • the concavities are obtained by means of rolling.
  • the concavities are obtained by bending.
  • the half panels, or the sections or strips are glued together.
  • the coupling is achieved by arranging the elements which are to be coupled in an adjacent position during the assembly step, and associated by clamping means, for example, by a vice.
  • the elements to be coupled are constrained together by means such as screws, nails or similar.
  • the invention makes it possible to adapt the sound-proofing panel to the specific and contingent requirements of the user, whether they be functional or aesthetic.
  • the resulting single face of the panel which is visible can be enhanced, lacquered or covered in some other manner in such a way as to meet any specific requirement of the users.
  • the covering obtained is of a high quality finishing, inasmuch as the visible edges of the slits are also covered, which is not possible with panels made in a single piece at the end of an extrusion or molding process.
  • the base elements in themselves may also have fire-proof, water-proof, insulating or other characteristics, and therefore the panel requires no other subsequent processing or finishing, but is already in its finished state when it leaves the structural processing.
  • the sound-proofing characteristics can be set and personalised according to specific requirements, and also according to the frequency of the lengthwise slits as happens in the state of the art, also by acting on the size and/or conformation of the through holes which need not even be circular, or by varying the material and/or the density of the base elements.
  • One peculiarity of the embodiment wherein the vertical strips or sections are laterally coupled is that it is possible to modify at will the size and/or shape of at least one of the two concavities which form the lengthwise hole in order to obtain a desired and specific sound-proofing effect.
  • Another advantage of the invention is that the fibres of the inner core are arranged horizontally to the panel; this causes a further sound-proofing effect of the noise generated in the room.
  • a further advantage is that the base elements, obtained by means of moulding, have a greater fibre density near the outer surfaces and a lesser density inside.
  • the sound-proofing panel or surface in their finished state has a greater density on the transverse section in the proximity of the outer surfaces and the coupling zone, and a lesser density in correspondence with the bottom of the inner through holes. This alternation of density further accentuates the overall sound-proofing effect of the final panel obtained.
  • the outer face of the panel is associated with a covering layer made of insulating material, possibly maintaining an air gap between the covering layer and the said outer face.
  • lengthwise slits of a variable frequency are made on the outer face of the panel, in correspondence with the lengthwise through holes.
  • the finished sound-proofing panel 10 shown in Fig. 1c is made, in the first embodiment, from two half panels 110, themselves finished and identical, one of which is shown in Fig. 1a.
  • each of the half panels 110 On the outer face 110a of each of the half panels 110, a plurality of lengthwise through concavities 111 are made, for example by means of the mechanical removal of material; the concavities 111 are transversely separated and, in this case, semi-circular in shape.
  • the concavities 11 may be semi-oval, semi-rhomboid or any other desired shape.
  • the two panels 110 are then coupled, making the respective concavities 111 coincide, so as to obtain a half-worked panel 210 (Fig. 1b) which has through holes 11, in this case circular in section, which extend along the whole length of the half-worked panel 210.
  • the next step provides for lengthwise slits 12 to be made on the face 10a of the panel 10 facing towards the room 15 (Fig. 5) wherein the noise is generated; the slits 12 are made in correspondence with the holes 11.
  • the frequency of the slits 12 coincides with the frequency of the holes 11, that is to say there is a slit 12 for every hole 11.
  • the slits 12 are located offset with respect to the centre of the circular hole 11, which further accentuates the sound-proofing capacity of the panel 10.
  • Fig. 2 shows a variant wherein the frequency of the slits 12 is half the frequency of the holes 11.
  • the frequency of the slits 12 can be equal to a desired submultiple of the frequency of the holes 11 so as to obtain a different sound-proofing effect which can be standardised.
  • the outer face 10b of the panel 10 is associated with a panel 13 made of insulating material, there also being included an air gap 14 between the outer face 10b and the insulating layer 13.
  • slits 112 are also made on the outer face 10b of the panel 10 which connect the outer face 10b with the lengthwise through holes 11.
  • the frequency of the slits 112, in this case, is less than that of the slits 12.
  • the panel 10 is obtained by coupling a plurality of sections or strips 310 at the sides, each of which has semi-circular concavities 211 on the side faces.
  • the semi-circular concavities 211 have a different shape so that, at the moment of lateral coupling, the lengthwise hole 11 is obtained with a substantially circular shape (Fig. 7).
  • Each section or strip 310 has its side faces appropriately shaped so as to achieve a male-female connection with the side faces of the contiguous sections/strips 310, and also so as to define the slit 12 directly, should it be required, without needing any further processing.
  • an upper extension 310a cooperates with a limited upper segment 310b of a contiguous section/strip 310, while the lengthened lower extension 310c cooperates with a flattened lower segment 310d of a contiguous section/strip 310 so as to achieve the slit 12.
  • the sections/strips 310 include, in opposite positions, respective attachment elements, male 16 and female 17, which during the assembly step are coupled respectively with the mating attachment elements, female 17 and male 16, of the adjacent sections/strips 310 (Fig. 11).
  • This solution facilitates and accelerates assembly operations, and also achieves the automatic coupling of the respective concavities 211 so as to define the substantially circular holes 11.
  • the mating conformation of the sections/strips 310 makes it possible to achieve sound-proofing panels or surfaces of a desired extension quickly and with easy assembly operations, starting from elements which are already finished in themselves, and which can even be assembled on site so as to form the necessary wall.
  • This kind of coupling also makes it possible to easily obtain concavities 211 of a variable size and shape so as to obtain efficient sound-proofing effects for a wide spectrum of frequencies.
  • the embodiment shown in Fig. 9 achieves concavities 211a of a variable size and shape on the length of the relative section/strip 310, achieving in this case a sinusoidal development in such a way as to obtain a high sound-proofing effect for a wide range of frequencies, for example for the whole spectrum of the human voice.
  • the finished panel 10 since it is formed by the coupling of half panels 110 or sections/strips 310 which in themselves are already finished, intrinsically includes the desired characteristics, for example, fire-proofing, water-proofing, insulation or other, which the base elements already have.
  • the material which constitutes the half panels 110 or the sections/strips 310 which are the base elements apart from composite, wood-based material, also plastic, light metal, expanded or synthetic material, etc., can be used.
  • a further characteristic of the finished panel 10 (Fig. 4), if wood-based composite material is used, is that the fibres are arranged horizontally to the extension of the panel; moreover, the fibres have a density which is greater in proximity to the inner 10a and outer 10b faces and the coupling zone 10c, and lesser in the intermediate zones.

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  • 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)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Claims (14)

  1. Verfahren zur Herstellung von schallschluckenden Platten oder Oberflächen für Innenräume, die für die Verkleidung von Wänden oder Zimmerdecken oder als Trennelemente für Innenräume wie Studiezimmer, Versammlungssäle, Arbeitszimmer und dgl. benutzt werden, wobei diese Platten oder Oberflächen eine nach dem Raum (15), in dem der Lärm gemacht ist, gewandte Innenseite (10a) und eine dieser Innenseite (10a) entgegengesetzte Außenseite (10b) aufweisen, wobei diese Platten oder Oberflächen (10) innere durchgehende Längslöcher (11) aufweisen, die sich auf die ganze Länge dieser Platte erstrecken, wobei diese Längslöcher (11) parallel und voneinander entfernt sind und mindestens einige dieser durchgehenden Längslöcher (11) mit dieser Innenseite (10a) dieser Platte durch mindestens sich auf einen wesentlichen Teil der Länge dieser Platte erstreckenden Längsschlitze (12) verbunden sind, dadurch gekennzeichnet, daß diese Platten oder Oberflächen (10) durch die Verbindung einer Vielzahl von an sich schon fertigen Grundleisten (310) erhalten werden, wobei jede dieser Grundleisten (310) eine Vorderfläche, eine Hinterfläche und zwei Seitenflächen aufweist, wobei diese Seitenflächen jeder dieser Grundleisten (310) eine jeweilige Konkavität (211) aufweisen, die einen wesentlich halbkreisförmigen Schnitt hat, nach außen offen ist und sich auf die ganze Länge der entsprechenden Grundleiste (310) erstreckt, wobei die jeweiligen Seitenflächen von zwei angrenzenden Grundleisten (310) miteinander verbunden sind und diese jeweiligen Konkavitäten (211) so zusammenfallen lassen, daß auf diese Weise diese inneren durchgehenden Längslöcher (11) bestimmt werden, wobei diese Seitenflächen der Grundleisten (310) mindestens eine Erweiterung (310c) aufweisen, die geeignet ist, zusammen mit einem konjugierten Abschnitt (310d) der Seitenflächen der angrenzenden Grundleiste (310) diesen entsprechenden Längsschlitz (12) zu bestimmen, um dafür zu sorgen, daß diese durchgehenden Längslöcher (11) mit dieser Innenseite (10a) der Platte (10) verbunden sind.
  2. Verfahren nach Anspruch 1, in dem auf jeder Grundleiste (310) jeweilige Abschnitte (310a, 310b) zur Verbindung mit der angrenzenden Grundleiste (310) ausgeführt sind.
  3. Verfahren nach Anspruch 1 oder 2, in dem auf diesen Seitenflächen jeder Grundleiste (310) konjugierte Nut und Feder-Elemente (16, 17) zum gegenseitigen Spunden der Leisten (310) durch eine Nut und Feder-Verbindung ausgeführt sind.
  4. Verfahren nach dem einen oder dem anderen der vorhergehenden Ansprüche, in dem diese Konkavitäten (211) auf der Seite der entsprechenden Grundleiste (310) mit wechselnder Gestaltung und Abmessung ausgeführt sind, um eine schallschluckende Wirkung zu erzielen, die ein breites Frequenzspektrum deckt.
  5. Verfahren nach Anspruch 4, in dem diese Konkavitäten (211) einen sinusförmigen Verlauf an der Längserstreckung der Seitenfläche der entsprechenden Grundleiste (310) aufweisen.
  6. Verfahren nach dem einen oder dem anderen der vorhergehenden Ansprüche, in dem diese Konkavitäten (211) der Grundleisten (310) durch maschinelle Stoffabtragung, zum Beispiel durch Fräsen, ausgeführt sind.
  7. Verfahren nach dem einen oder dem anderen der Ansprüche 1 bis 5 inbegriffen, in dem diese Konkavitäten (211) der Grundleisten (310) durch Pressen ausgeführt sind.
  8. Verfahren nach dem einen oder dem anderen der Ansprüche 1 bis 5 inbegriffen, in dem diese Konkavitäten (211) der Grundleisten (310) durch Walzen ausgeführt sind.
  9. Verfahren nach dem einen oder dem anderen der vorhergehenden Ansprüche, welches die Anwendung von Grundleisten (310) vorsieht, die an sich feuerhemmende und/oder wasserabstoßende und/oder isolierende Eigenschaften aufweisen.
  10. Verfahren nach dem einen oder dem anderen der vorhergehenden Ansprüche, welches die Anwendung von aus Verbundholzwerkstoff wie verkleideten und/oder veredelten Holzspan- oder MDF-Platten bestehenden Grundleisten (310) mindestens auf dieser nach dem Raum (15) gewandten Seite (10a) der Platte (10) vorsieht.
  11. Verfahren nach dem einen oder dem anderen der vorhergehenden Ansprüche 1 bis 10 inbegriffen, welches die Anwendung von aus Kunstpreßstoff oder Leichtmetall bestehenden Grundleisten (310) vorsieht.
  12. Verfahren nach dem einen oder dem anderen der vorhergehenden Ansprüche 1 bis 10 inbegriffen, welches die Anwendung von aus Schaum- oder Kunststoff bestehenden Grundleisten (310) vorsieht.
  13. Verfahren nach dem einen oder dem anderen der vorhergehenden Ansprüche, welches die Anordnung von mindestens einer Isolierplatte (13) gegenüber dieser Außenseite (10b) der fertigen Platte (10) vorsieht, wobei ein Luftspalt zwischen dieser Außenseite (10b) und dieser Isolierplatte (13) vorhanden ist.
  14. Verfahren nach Anspruch 13, welches die Ausführung von Verbindungsschlitzen (112) zwischen dieser Außenseite (10b) dieser fertigen Platte (10) und diesen durchgehenden Längslöchern (11) vorsieht.
EP98903220A 1997-03-07 1998-02-26 Verfahren zur herstellung von schalldämmenden bauplatten oder oberflächen für innenräume Expired - Lifetime EP0965122B1 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
IT97UD000045 IT1290731B1 (it) 1997-03-07 1997-03-07 Procedimento di produzione di pannelli fonoassorbenti per ambienti
ITUD970045 1997-03-07
IT97UD000135 IT1295726B1 (it) 1997-07-30 1997-07-30 Procedimento di produzione di pannelli o superfici fonoassorbenti per ambienti
ITUD970135 1997-07-30
PCT/IB1998/000233 WO1998039767A1 (en) 1997-03-07 1998-02-26 Method to produce sound-proofing panels or surfaces for interiors

Publications (2)

Publication Number Publication Date
EP0965122A1 EP0965122A1 (de) 1999-12-22
EP0965122B1 true EP0965122B1 (de) 2002-11-27

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EP98903220A Expired - Lifetime EP0965122B1 (de) 1997-03-07 1998-02-26 Verfahren zur herstellung von schalldämmenden bauplatten oder oberflächen für innenräume

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Country Link
EP (1) EP0965122B1 (de)
AT (1) ATE228702T1 (de)
AU (1) AU6003298A (de)
DE (1) DE69809715D1 (de)
WO (1) WO1998039767A1 (de)

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US20210372060A1 (en) * 2020-05-27 2021-12-02 Mute Wall Systems, Inc. Sound Dampening Barrier Wall

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US9607600B2 (en) 2009-02-06 2017-03-28 Sonobex Limited Attenuators, arrangements of attenuators, acoustic barriers and methods for constructing acoustic barriers
GB0901982D0 (en) 2009-02-06 2009-03-11 Univ Loughborough Attenuators, arrangements of attenuators, acoustic barriers and methods for constructing acoustic barriers

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JP2731700B2 (ja) * 1993-06-04 1998-03-25 株式会社ノザワ レゾネータ型防音パネルの製造方法
US5854453A (en) * 1994-10-11 1998-12-29 Nitto Boseki Co., Ltd. Sound absorbing body, sound absorbing plate, and sound absorbing unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210372060A1 (en) * 2020-05-27 2021-12-02 Mute Wall Systems, Inc. Sound Dampening Barrier Wall
US12006643B2 (en) * 2020-05-27 2024-06-11 Mute Wall Systems, Inc. Sound dampening barrier wall

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ATE228702T1 (de) 2002-12-15
AU6003298A (en) 1998-09-22
EP0965122A1 (de) 1999-12-22
WO1998039767A1 (en) 1998-09-11
DE69809715D1 (de) 2003-01-09

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