EP1488043B1 - Lärmmindernde wand - Google Patents

Lärmmindernde wand Download PDF

Info

Publication number
EP1488043B1
EP1488043B1 EP03738179.5A EP03738179A EP1488043B1 EP 1488043 B1 EP1488043 B1 EP 1488043B1 EP 03738179 A EP03738179 A EP 03738179A EP 1488043 B1 EP1488043 B1 EP 1488043B1
Authority
EP
European Patent Office
Prior art keywords
sound
absorbing device
base
caissons
elements
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
Application number
EP03738179.5A
Other languages
English (en)
French (fr)
Other versions
EP1488043A1 (de
Inventor
Bernard Sapoval
Marcel Filoche
Michel Chappat
Didier Peyrard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Colas SA
Ecole Polytechnique
Original Assignee
Colas SA
Ecole Polytechnique
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Colas SA, Ecole Polytechnique filed Critical Colas SA
Publication of EP1488043A1 publication Critical patent/EP1488043A1/de
Application granted granted Critical
Publication of EP1488043B1 publication Critical patent/EP1488043B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • E04B1/86—Sound-absorbing elements slab-shaped
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0029—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with porous surfaces, e.g. concrete with porous fillers
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0047—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with open cavities, e.g. for covering sunken roads
    • E01F8/0076—Cellular, e.g. as wall facing
    • 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
    • E04B2001/8414—Sound-absorbing elements with non-planar face, e.g. curved, egg-crate shaped
    • E04B2001/8419—Acoustical cones or the like, e.g. for anechoic chambers

Definitions

  • the present invention relates to a sound barrier wall. It aims to limit the effects of noise, including noise from various modes of transport (road, rail, airports).
  • This noise-canceling device can be placed on any type of infrastructure (wall, ceiling, floor, tunnel, building, .
  • the absorbent panels are generally in the form of a box in which is placed an absorbent material such as rock wool, clay moss, etc ... while the masking panels consist of a hard wall such as glass, smooth concrete etc ...
  • the present invention is in the first case, that is to say in the field of absorbent panels.
  • the proposed device not only forms a screen for noise but also allows its absorption and decreases the effect of multiple reflections.
  • the object of the invention is to improve the performance of an absorbent panel noise barrier by proposing a new geometry consisting inter alia in increasing the interaction surface of the acoustic waves with a partially absorbent material.
  • the invention is placed in the context of so-called fractal geometries and "filling space” surfaces ("space filling surfaces”).
  • space filling surfaces space filling surfaces
  • the invention relates to a noise absorption device including road and rail comprising an approximately flat base, raised elements and / or hollow each comprising at least one recess, said device being defined in claim 1.
  • this base reveals with the elements in relief and / or hollow a configuration having a fractality in a range of lengths between 1 cm and 50 cm, fractal dimension greater than 2.5 allowing the localization of certain modes acoustics in the vicinity of said elements.
  • the noise absorption device implements the concept of damping of the fractal acoustic resonators.
  • fractal object an object whose geometry can be described by a non-integer dimension.
  • This approach aims at producing a phonically absorbing object having surfaces of maximum area in a given volume, i.e. an object having a "filling space” (space filling surface). This is taken in the sense that the total area included in a sphere of radius R centered on the object varies more rapidly when R increases than the square of the radius R.
  • Such an object has a very irregular geometry which allows the localization of the modes of waves in the frequency range of sound, in the vicinity of surfaces.
  • the noise absorbing device therefore comprises an approximately flat base, elements 1 in relief and / or hollow each comprising at least one recess or notch 2. According to the invention, this base reveals with the elements in question. relief and / or hollow a configuration having a fractal zone of between 1 cm and 50 cm, fractal dimension greater than 2.5.
  • the device advantageously has variable sizes in the planes parallel to the plane of the base, as a function of their distance from said plane of the base. In a preferred embodiment, these sizes and their variations are at least irregular part. We thus realized a fractal object at the first order of approximation.
  • the surface of the elements 1 in relief and / or recessed is generated by a straight line passing through a vertex and bearing on a closed line contained in a plane not passing through said vertex, said elements 1 being truncated in their upper part 3 by a plane.
  • the closed line may, for example, be a curve or a polygon.
  • - base 4 the area circumscribed by the closed line from which the height of the solid element is counted perpendicularly.
  • this closed line describes the contour of a kouglof mold, ie it comprises a succession of arcs of a circle forming a closed line.
  • the elements 1 in relief are truncated pyramids 1 such as those shown in FIG. figure 1 .
  • the pyramid trunk has a square base 4, of which two sides 5 and 6 are visible in the perspective diagram of the figure 1 and an upper portion 3.
  • the elements 1 in relief are truncated cones.
  • Each of the elements 1 in relief is hollow, so that it comprises a hollow truncated cone 2.
  • the truncated cone 2 are open on the side of the upper part 3 of the truncated pyramids 1.
  • the projected surface of the wall is that generally considered and which can be defined as being the surface seen macroscopically from the sound source. This is the area occupied by the device or wall.
  • the developed surface is the accumulation of all the surfaces, external or internal, of the absorption device in contact with the air, that is to say with the sound waves.
  • this developed surface will be, in the case where the elements 1 in relief are truncated pyramids, the result of the accumulation of the surfaces of the lateral faces of the truncated pyramids 1 and internal surfaces hollow truncated cones 2.
  • the elements 1 in relief are, according to a preferred embodiment, truncated pyramids.
  • the invention can not be limited, however, to such a mode of realization.
  • Another preferred embodiment of the invention being, for example, truncated cones.
  • the truncated pyramids 1 are advantageously combined in boxes 9 may be used, either directly or by association of several of them to form a wall.
  • the axes 7 of these truncated pyramids 1 are advantageously parallel to each other and their associated bases 4, so as to form a base 10 of the box 9 which is flat.
  • the axis 7 of the truncated pyramids 1 can be inclined at an angle between 0 and 5 ° relative to the normal to the plane passing through the base 4 of the solid elements 1.
  • the plane delimiting the upper part 3 of said truncated pyramids 1 is at an angle to the plane passing through the base 10 of the box 9. This angle is advantageously between 2 and 10 °. In a preferred embodiment, this angle is 6 °.
  • this inclined plane allows a variation of the heights of the elements 1 in relief and thus reinforces the irregularities of the device which allows a widening of the frequency range for which is observed the location of the wave modes and thus an overamortization.
  • the sizes of the 4 square bases are between 50 and 140 mm.
  • the heights of the truncated pyramids 1 are between 220 and 350 mm.
  • a set of 5 x 5 25 truncated pyramids 1 each having 4 base a 90 mm square was made.
  • the height of the truncated pyramid 1 is 240 mm.
  • the elements 1 in relief formed on the flat base of the boxes 9, are separated by recesses 2 made in the base 10 which constitute hollow elements.
  • the presence of these recesses improves the absorption capacity of the device by advantageously increasing the developed area of the box 9 relative to its projected surface.
  • These recesses 2 are, for example, open truncated cones on the side of the upper part of the base 10.
  • the box 9 can be furthermore formed by a periodic arrangement of the same elementary mesh 14.
  • Figure 4 shows such an arrangement, in a preferred embodiment, offering both a high absorbency and easy stripping during manufacture.
  • the ratio of the developed surface to the projected surface is of the order of 10.
  • the Figure 5 schematically shows the elementary mesh 14 in top view ( Fig. 5 a) used to obtain the periodic arrangement of box 9 of the figure 4 .
  • This elementary mesh 14 has in the upper plane 15 of the base 10 a square surface which comprises a first square 16 of side length a having the base 17 open of a truncated cone-shaped recess 18 with a circular base 17.
  • elementary mesh 14 also comprises in this upper plane 15, a second square 19 of side length b with b ⁇ a, and the bases 20-21 rectangular two elements 1 in relief, these elements 1 being truncated pyramids.
  • Each of the elements 1 in relief is hollow, so that it comprises a hollow truncated cone 2.
  • the Figure 5 (b) shows a sectional view along the BB axis of this elementary mesh and the figure 5 c) shows this elementary mesh 14 in section along the axis CC.
  • the figure 6 represents an embodiment of a "type 1 wall” 11 using a set of boxes 9 having their bases 10 parallel to the surface of the "wall type 1" 11.
  • type 1 wall a quadrangular rigid flat portion comprising a limited number of boxes, advantageously 35.
  • These "type 1 walls” 11 may be mounted alone to form a noise barrier or to be fixed on a support pre-existing (tunnels, motorway borders, ).
  • the boxes 9 may be randomly arranged relative to each other.
  • the boxes 9 are grouped in pairs, so as to form a succession of inverted pyramids.
  • the figure 7 represents an optimized embodiment of a "type 2 wall" 12 using a set of boxes 9. This wall can be viewed as a fractal object in the second order of approximation.
  • This "type 2 wall” 12 is approximately peipendicular to the pavement 13. It is formed by the association of caissons 9 classified in two categories, the boxes A designated by 9 A whose flat base is perpendicular to the general plane of the wall 12 , ie for example parallel or perpendicular to the roadway 13, and the elements 9 B which are perpendicular to the elements 9A .
  • the extreme elements at the top and at the bottom of the wall are preferably type A elements, the type A and type B elements are advantageously grouped according to the sequence A, B, A, A, B, A.
  • the intermediate AAB pattern being repeated as many times as necessary to cover the entire height of the wall according to the size of the caissons 9.
  • one of the sizes of the base 9 of the boxes 9 B which will be called for example their width, is half the other of their sizes, their length.
  • the boxes 9 of type A are divided into two categories, respectively, A 1 and A 2 perpendicular to each other.
  • a damping factor of five is then obtained with respect to the type 1 wall.
  • the absorption of the device of the invention is improved by producing it in an absorbent material such as, for example, wood-concrete for which it is known that the average sound absorption is of the order of 0.5 to 0, 7.
  • concrete-wood is the material made with wood chips bonded together by a cement matrix.
  • the wood material used is of the Spruce or Douglas fir type advantageously underwent a rotproof treatment.
  • For a cubic meter of wood chips usually about 410 kg of cement is used.
  • the proportion of the number of wood chips per The amount of cement used to make the cement matrix is adapted to modify the average dimensions of the voids created in the concrete and thus increase the absorbency of the absorbent material.
  • porous concrete the concrete comprising expanded clay balls or any other cellular absorbent material may also be used.
  • the wall 12 will be made by association of boxes 9 facing the road on the one hand, to the buildings on the other hand.
  • This noise absorption device can advantageously be implemented to limit noise pollution from various modes of transport (road, rail). It can be arranged on any type of infrastructure (wall, ceiling, floor, tunnel, building, .
  • This noise absorption device is advantageously anti-tag.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Building Environments (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Claims (18)

  1. Vorrichtung zur Minderung von Lärm, insbesondere Straßen- und Eisenbahnlärm, umfassend eine annähernd ebene Basis mit zwei gegenüberliegenden Seiten, reliefartige und/oder hohle Elemente (1), jeweils umfassend mindestens eine Ausnehmung (2), wobei die Ausnehmung ein hohler Kegelstumpf (2) ist, der als Achse (7) die Gerade hat, die die Spitze der reliefartigen Elemente (1) in der Mitte ihrer Basis (4) verbindet, wobei die Kegelstümpfe (2) auf der Seite des oberen Teils der reliefartigen Elemente (1) offen sind, dadurch gekennzeichnet, dass sie keine Verbindung zwischen ihren beiden Seiten über ihre Dicke umfasst, und dass diese Basis mit den reliefartigen und/oder hohlen Elementen (1) eine Konfiguration zeigt, die eine Fraktalität in einem Längenbereich zwischen 1 cm und 50 cm mit einer fraktalen Dimension D über 2,5, die die Lokalisierung von akustischen Modi ermöglicht, in der Nähe der Elemente (1) aufweist, wobei sich die fraktale Dimension D als mittlerer Exponent erstreckt, der das Maß der Gesamtfläche S(R) zwischen der Luft und dem absorbierenden Medium der Vorrichtung, eingeschlossen in einen Radienbereich R, der auf diese Trennfläche zentriert ist, in Abhängigkeit von diesem Radius in der Form S(R) proportional zu R zur Leistung D ausdrückt, nämlich S(R) = k RD, wobei die Vorrichtung aus einem phonisch absorbierenden Material hergestellt ist.
  2. Vorrichtung zur Lärmminderung nach Anspruch 1, dadurch gekennzeichnet, dass die reliefartigen Elemente (1) Kegelstümpfe sind.
  3. Vorrichtung zur Lärmminderung nach Anspruch 1, dadurch gekennzeichnet, dass die reliefartigen Elemente (1) Pyramidenstümpfe sind.
  4. Vorrichtung zur Lärmminderung nach Anspruch 3, dadurch gekennzeichnet, dass die Basis der Pyramidenstümpfe rechteckig ist.
  5. Vorrichtung zur Lärmminderung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Ebene, die den oberen Teil (3) der reliefartigen Elemente (1) begrenzt, einen Winkel mit der Ebene bildet, die durch die Basis (4) der Elemente (1) geht.
  6. Vorrichtung zur Lärmminderung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das phonisch absorbierende Material Beton-Holz ist.
  7. Vorrichtung zur Lärmminderung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die reliefartigen Elemente (1) zu Kassetten (9) zusammengefasst sind, die eine ebene Basis (10) haben, auf der die reliefartigen Elemente (1) ausgebildet sind.
  8. Vorrichtung zur Lärmminderung nach Anspruch 7, dadurch gekennzeichnet, dass die reliefartigen Elemente (1) durch in der Basis (10) ausgebildete Ausnehmungen (2) getrennt sind.
  9. Vorrichtung zur Lärmminderung nach Anspruch 8, dadurch gekennzeichnet, dass die Ausnehmungen (2) Kegelstümpfe (2) sind, die auf der Seite des oberen Teils der Basis (10) offen sind.
  10. Vorrichtung zur Lärmminderung nach Anspruch 8 oder 9, dadurch gekennzeichnet, dass eine Ausnehmung (2) und zwei reliefartige Elemente (1) ein elementares Glied bilden.
  11. Vorrichtung zur Lärmminderung nach Anspruch 10, dadurch gekennzeichnet, dass die Kassette von einer regelmäßigen Anordnung desselben elementaren Glieds gebildet ist.
  12. Vorrichtung zur Lärmminderung nach einem der Ansprüche 7 bis 11, dadurch gekennzeichnet, dass sie von mehreren Kassetten (9) gebildet ist, die eine Mauer (12) bilden, wobei die Kassetten (9) ihre jeweilige Basis (10) parallel zur Oberfläche der Mauer (12) haben.
  13. Vorrichtung zur Lärmminderung nach Anspruch 12, dadurch gekennzeichnet, dass die Kassetten (9) zufällig zueinander angeordnet sind.
  14. Vorrichtung zur Lärmminderung nach Anspruch 13, dadurch gekennzeichnet, dass die reliefartigen Elemente (1) Pyramidenstümpfe sind und die Kassetten (9) paarweise zusammengefasst sind, um eine Aufeinanderfolge von umgekehrten Pyramiden zu bilden.
  15. Vorrichtung zur Lärmminderung nach Anspruch 12, dadurch gekennzeichnet, dass sie von mehreren Kassetten (9) gebildet ist, die eine Mauer (12) bilden, wobei die Kassetten (9) ihre jeweilige Basis (10) entweder parallel oder senkrecht zur Oberfläche der Mauer (12) haben.
  16. Vorrichtung zur Lärmminderung nach Anspruch 15, dadurch gekennzeichnet, dass die Kassetten (9), die jeweils zur den beiden Seiten der Mauer (12) gerichtet sind, verbunden sind.
  17. Vorrichtung zur Lärmminderung nach den Ansprüchen 15 und 16, dadurch gekennzeichnet, dass Kassetten (9) von oben nach unten in der folgenden Reihenfolge verbunden sind, wobei mit A eine Kassette (9A) bezeichnet ist, deren Basis (10) auf die Oberfläche der Mauer (12) senkrecht steht, und mit B eine Kassette (9B), deren Basis (10) parallel zur Oberfläche der Mauer (12) ist:
    ABAABA
  18. Vorrichtung zur Lärmminderung nach Anspruch 17, dadurch gekennzeichnet, dass die Kassetten (9) vom Typ A in zwei Kategorien, A1 bzw. A2 senkrecht zueinander, verteilt sind.
EP03738179.5A 2002-03-19 2003-03-19 Lärmmindernde wand Expired - Lifetime EP1488043B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0203404 2002-03-19
FR0203404A FR2837508B1 (fr) 2002-03-19 2002-03-19 Mur antibruit
PCT/FR2003/000881 WO2003078740A1 (fr) 2002-03-19 2003-03-19 Mur antibruit

Publications (2)

Publication Number Publication Date
EP1488043A1 EP1488043A1 (de) 2004-12-22
EP1488043B1 true EP1488043B1 (de) 2013-11-06

Family

ID=27799073

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03738179.5A Expired - Lifetime EP1488043B1 (de) 2002-03-19 2003-03-19 Lärmmindernde wand

Country Status (5)

Country Link
US (1) US7308965B2 (de)
EP (1) EP1488043B1 (de)
CA (1) CA2478579C (de)
FR (1) FR2837508B1 (de)
WO (1) WO2003078740A1 (de)

Families Citing this family (62)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10328680A1 (de) * 2003-06-26 2005-01-13 Daimlerchrysler Ag Vorrichtung und Verfahren zur Wärme-und/oder Schallisolierung bei Kraftfahrzeugen
US7181891B2 (en) * 2003-09-08 2007-02-27 Quiet Solution, Inc. Acoustical sound proofing material and methods for manufacturing same
JP4144754B2 (ja) * 2004-05-31 2008-09-03 Ｔｄｋ株式会社 電波吸収体
US8495851B2 (en) * 2004-09-10 2013-07-30 Serious Energy, Inc. Acoustical sound proofing material and methods for manufacturing same
US7921965B1 (en) 2004-10-27 2011-04-12 Serious Materials, Inc. Soundproof assembly and methods for manufacturing same
US20060157297A1 (en) * 2005-01-14 2006-07-20 Rpg Diffusor Systems, Inc. Diverse acoustical modules with identical outward appearance
US7798287B1 (en) * 2005-01-20 2010-09-21 Serious Materials, Inc. Acoustical ceiling panels
US20060230699A1 (en) * 2005-03-22 2006-10-19 Keene James R Sound control flooring systems and methods therefor
US7322441B2 (en) * 2005-04-14 2008-01-29 Rpg Diffusor Systems, Inc. Extended bandwidth folded well diffusor
KR100645824B1 (ko) * 2005-06-14 2006-11-14 김영옥 흡음판넬
US7428948B2 (en) * 2005-08-11 2008-09-30 Rpg Diffusor Systems, Inc. Hybrid amplitude-phase grating diffusers
US20070045042A1 (en) * 2005-08-25 2007-03-01 L&L Products, Inc. Sound reduction system with sound reduction chamber
US8029881B2 (en) * 2005-11-04 2011-10-04 Serious Energy, Inc. Radio frequency wave reducing material and methods for manufacturing same
KR101274509B1 (ko) * 2006-04-27 2013-06-13 마사오 스즈키 차음 장치
US20080171179A1 (en) * 2007-01-11 2008-07-17 Quiet Solution, Llc Low embodied energy wallboards and methods of making same
US20080223653A1 (en) * 2007-03-16 2008-09-18 Seoul National University Industry Foundation Poroelastic acoustical foam having enhanced sound-absorbing performance
US7987645B2 (en) * 2007-03-29 2011-08-02 Serious Materials, Inc. Noise isolating underlayment
US9388568B2 (en) * 2007-04-06 2016-07-12 Pacific Coast Building Products, Inc. Acoustical sound proofing material with improved fracture characteristics and methods for manufacturing same
US7883763B2 (en) 2007-04-12 2011-02-08 Serious Materials, Inc. Acoustical sound proofing material with controlled water-vapor permeability and methods for manufacturing same
US8424251B2 (en) * 2007-04-12 2013-04-23 Serious Energy, Inc. Sound Proofing material with improved damping and structural integrity
US8397864B2 (en) * 2007-04-24 2013-03-19 Serious Energy, Inc. Acoustical sound proofing material with improved fire resistance and methods for manufacturing same
US8181738B2 (en) * 2007-04-24 2012-05-22 Serious Energy, Inc. Acoustical sound proofing material with improved damping at select frequencies and methods for manufacturing same
US10174499B1 (en) 2007-05-01 2019-01-08 Pacific Coast Building Products, Inc. Acoustical sound proofing material for architectural retrofit applications and methods for manufacturing same
US20080286609A1 (en) * 2007-05-15 2008-11-20 Surace Kevin J Low embodied energy wallboards and methods of making same
DE102007022616C5 (de) * 2007-05-15 2013-01-17 Airbus Operations Gmbh Mehrschichtplatte mit schräger Schlitzung des Plattenkerns zur Reduzierung der Körperschallabstrahlung und zur Erhöhung der Schalldämmung bei Beibehalten der mechanischen Stabilität
US20100101457A1 (en) * 2007-05-25 2010-04-29 Surace Kevin J Low embodied energy sheathing panels and methods of making same
US7908818B2 (en) * 2008-05-08 2011-03-22 Serious Materials, Inc. Methods of manufacturing acoustical sound proofing materials with optimized fracture characteristics
US9387649B2 (en) * 2007-06-28 2016-07-12 Pacific Coast Building Products, Inc. Methods of manufacturing acoustical sound proofing materials with optimized fracture characteristics
US20090000245A1 (en) * 2007-06-28 2009-01-01 Tinianov Brandon D Methods of manufacturing acoustical sound proofing material
US7914914B2 (en) * 2007-06-30 2011-03-29 Serious Materials, Inc. Low embodied energy sheathing panels with optimal water vapor permeance and methods of making same
US7799410B2 (en) * 2007-06-30 2010-09-21 Serious Materials, Inc. Acoustical sound proofing material with improved damping at select frequencies and methods for manufacturing same
US8337993B2 (en) * 2007-11-16 2012-12-25 Serious Energy, Inc. Low embodied energy wallboards and methods of making same
AU2008354953B2 (en) * 2008-04-17 2013-10-31 Stichting Nationaal Lucht En Ruimtevaart Laboratorium Method for the reduction of sound
BRPI0912585B1 (pt) * 2008-05-05 2019-03-26 3M Innovative Properties Company. Compósito acústico e método para fornecer absorção acústica e perda de transmissão
JP5359167B2 (ja) * 2008-10-07 2013-12-04 ヤマハ株式会社 車体構造体および荷室
DE102008063923A1 (de) * 2008-12-19 2010-06-24 Airbus Deutschland Gmbh Mehrschichtplatte zur Schalldämmung
US8015848B2 (en) * 2009-01-22 2011-09-13 Electrolux Home Products, Inc. Acoustic panel
US8020662B1 (en) * 2010-07-22 2011-09-20 Electrolux Home Products, Inc. Acoustic base tray for a dishwashing appliance, and associated method
US20110232701A1 (en) * 2009-01-27 2011-09-29 Electrolux Home Products, Inc. Mastic-less dishwasher providing increasing energy efficiency and including a recyclable and reclaimable tub
US8146310B2 (en) * 2009-03-11 2012-04-03 Keene Building Products Co., Inc. Noise control flooring system
FR2943000A1 (fr) * 2009-03-12 2010-09-17 Peugeot Citroen Automobiles Sa Buse, groupe moto-ventilateur et vehicule equipe de cette buse.
ES2358143B1 (es) * 2009-10-23 2012-03-26 Universidad Politecnica De Valencia Pantalla acústica.
US8528286B2 (en) * 2009-11-10 2013-09-10 Keene Building Products Co., Inc. Sound control mat
MX2010003431A (es) * 2010-03-26 2011-09-26 Mabe Sa De Cv Estampado de gabinete.
ES2449691T3 (es) * 2010-08-05 2014-03-20 Butech Building Technology S.A. Procedimiento de fabricación de piezas para la formación de recubrimientos desmontables de suelos
US8857564B2 (en) * 2012-11-01 2014-10-14 The Hong Kong University Of Science And Technology Acoustic metamaterial with simultaneously negative effective mass density and bulk modulus
US9103076B2 (en) * 2012-12-31 2015-08-11 Playsafer Surfacing LLC a division of Rubberecycle Unitary safety surface tiles and associated structures
US20140262607A1 (en) * 2013-03-15 2014-09-18 Kent Gray Kit For Assembling Acoustic Treatments To Surfaces
US8960367B1 (en) * 2013-11-08 2015-02-24 Jean Leclerc Acoustic panel
FR3017235B1 (fr) * 2014-02-04 2016-01-29 Onera Office National Detudes Et De Rech Aerospatiales Panneau insonorisant
US9845598B1 (en) * 2014-06-23 2017-12-19 Hanson Hsu Apparatus for improving the acoustics of an interior space, a system incorporating said apparatus and method of using said apparatus
CA2988547C (en) 2016-12-15 2021-01-26 Certainteed Gypsum, Inc. Plaster boards and methods for making them
CN106996204B (zh) * 2017-05-04 2019-09-06 中国航发沈阳发动机研究所 一种用于风扇增压级气动噪声试验的消声室
US11124965B2 (en) 2017-09-26 2021-09-21 Certainteed Gypsum, Inc. Plaster boards having internal layers and methods for making them
EP3688246A4 (de) 2017-09-28 2021-05-19 CertainTeed Gypsum, Inc. Gipsplatten und verfahren zur herstellung davon
CA3078111C (en) 2017-09-30 2023-04-25 Certainteed Gypsum, Inc. Tapered plasterboards and methods for making them
US10978038B2 (en) * 2018-07-02 2021-04-13 Toyota Motor Engineering & Manufacturing North America, Inc. Invisible sound barrier
USD887965S1 (en) * 2018-11-22 2020-06-23 Michael Ross Catania Solar panel
USD887966S1 (en) * 2018-11-22 2020-06-23 Michael Ross Catania Solar panel
USD883193S1 (en) * 2018-11-28 2020-05-05 Michael Ross Catania Solar panel
USD883194S1 (en) * 2018-12-16 2020-05-05 Michael Ross Catania Solar panel
US11555280B2 (en) * 2020-09-29 2023-01-17 Toyota Motor Engineering & Manufacturing North America, Inc. Sound absorbing structure having one or more acoustic scatterers for improved sound transmission loss

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1791232A (en) * 1930-01-06 1931-02-03 Frank J Borkenstein Sound-cushioning means
US2771164A (en) * 1949-01-27 1956-11-20 Western Engineering Associates Wall construction
US2792164A (en) * 1951-08-10 1957-05-14 Cauffiel John Preformed structural units
US2840179A (en) * 1954-06-17 1958-06-24 Miguel C Junger Sound-absorbing panels
DE1168112B (de) * 1963-04-10 1964-04-16 Olympia Werke Ag Schalldaemmittel fuer Maschinenbekleidungen, insbesondere von Bueromaschinen
ES207580Y (es) * 1971-01-11 1976-07-16 Morresi Panel para el acondicionamiento acustico y climatico de am-bientes en general.
US3722619A (en) * 1972-04-26 1973-03-27 Honeywell Inc Acoustic decoupler
CH567636A5 (de) * 1973-06-04 1975-10-15 Schrepfer Rudolf
DE2921050A1 (de) * 1979-05-23 1980-11-27 Fraunhofer Ges Forschung Schallabsorbierendes bauelement aus kunststoff-folie
US4242398A (en) * 1979-01-16 1980-12-30 Teijin Limited Fibrous shaped article having non-level surface
DE3233654C2 (de) * 1982-09-10 1986-01-16 Ewald Dörken AG, 5804 Herdecke Schallabsorbierendes Bauelement
DE3313813A1 (de) * 1983-04-16 1984-10-25 Hans Graf Bauunternehmung GmbH + Co KG, 5047 Wesseling Wandsysteme
DE3530867A1 (de) * 1985-08-29 1987-03-05 Nuedling Franz C Basaltwerk Mauerwerk- oder pflasterstein aus beton oder dergleichen
DE3728103A1 (de) * 1987-08-22 1989-03-02 Nuedling Franz C Basaltwerk Bauelement sowie verfahren zur herstellung desselben
JPH01226906A (ja) * 1988-03-04 1989-09-11 Seiji Osawa 屋外用防音板
CH678201A5 (de) * 1989-03-17 1991-08-15 Lignoform Formsperrholz Ag
US5027920A (en) * 1989-11-06 1991-07-02 Rpg Diffusor Systems, Inc. Cinder block modular diffusor
US5160816A (en) * 1990-10-17 1992-11-03 Systems Development Group Two dimensional sound diffusor
JPH052395A (ja) * 1991-06-25 1993-01-08 Matsushita Electric Works Ltd 吸音複合パネル
US5250763A (en) * 1991-10-07 1993-10-05 Brown William G Acoustical equalization device system
US5193318A (en) * 1991-10-23 1993-03-16 Rpg Diffusor Systems, Inc. Acoustical diffusing and absorbing cinder blocks
JPH05150791A (ja) * 1991-11-29 1993-06-18 Isuzu Motors Ltd 消音装置
CH686667A5 (de) * 1992-09-23 1996-05-31 Rieter Automotive Int Ag Vibrationsdaempfende Dachhimmelkonstruktion.
FR2712902B1 (fr) * 1993-11-26 1996-02-16 Tuyaux Bonna Dispositif d'isolation acoustique et procédé de fabrication d'un tel dispositif.
US5665943A (en) * 1995-06-15 1997-09-09 Rpg Diffusor Systems, Inc. Nestable sound absorbing foam with reduced area of attachment
US5817992A (en) * 1997-03-05 1998-10-06 Rpg Diffusor Systems, Inc. Planar binary amplitude diffusor
DE19861016C2 (de) * 1998-12-17 2001-07-05 Fraunhofer Ges Forschung Strukturierte Formkörper zur Schallabsorption
US20030006092A1 (en) * 2001-06-27 2003-01-09 Rpg Diffusor Systems, Inc. Sound diffuser with low frequency sound absorption
US6772859B2 (en) * 2002-09-26 2004-08-10 Rpg Diffusor Systems, Inc. Embodiments of aperiodic tiling of a single asymmetric diffusive base shape

Also Published As

Publication number Publication date
WO2003078740A1 (fr) 2003-09-25
FR2837508B1 (fr) 2005-06-24
FR2837508A1 (fr) 2003-09-26
CA2478579A1 (fr) 2003-09-25
US20050103568A1 (en) 2005-05-19
EP1488043A1 (de) 2004-12-22
US7308965B2 (en) 2007-12-18
CA2478579C (fr) 2010-07-06

Similar Documents

Publication Publication Date Title
EP1488043B1 (de) Lärmmindernde wand
EP0940248B1 (de) Schalldämpfungsplatte und Herstellungsverfahren
LU80501A1 (fr) Structure d'absorption du son
WO2017093693A1 (fr) Métamatériau acoustique absorbant
FR3010225A1 (fr) Panneau acoustique absorbant
EP3103115A1 (de) Schalldichte platte
EP0618987B1 (de) Schallabschirmwand und deren verwendung
EP1570138B1 (de) Lärmschutzkonstruktion
EP2161238A1 (de) Dreidimensionale Struktur mit sehr hoher Dichte
EP0540624B1 (de) Anlage zur dämpfung von lärm und resonanz auf basis von altreifen
CA2906625A1 (fr) Structure de protection d'ouvrages maritimes et/ou fluviaux et bloc de protection utilise
EP1407091B1 (de) Schalldämmungsvorrichtung für gebäude
FR2669048A1 (fr) Paroi de protection phonique.
BE892899A (fr) Ecran acoustique
FR2712902A1 (fr) Dispositif d'isolation acoustique et procédé de fabrication d'un tel dispositif.
FR2746831A1 (fr) Element modulaire de construction ou de renovation pour la protection phonique
EP0728877A1 (de) Akustisch isolierendes Bauelement und aus solchen Elementen erstellte schalldämmende Wand
FR3111649A1 (fr) Système d’atténuation d’ondes mécaniques se propageant dans le sol
WO2016038270A1 (fr) Installation anti-bruit pour voie de transport guidé et voie de transport guidé equipée d'une telle installation
FR3068715B1 (fr) Monobloc acoustique double face, pour cloture de chantier, a vocation publicitaire
FR2528474A1 (fr) Procede de fabrication de panneaux acoustiques absorbants et panneaux obtenus selon ce procede
BE508118A (de)
EP0346554A1 (de) Konstruktion zur Abschwächung von Wellen
FR2683660A1 (fr) Structure modulaire d'absorption de vibrations, notamment acoustiques dans une enceinte close.
FR2737514A1 (fr) Ecran antibruit

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20041019

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

17Q First examination report despatched

Effective date: 20100129

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 60345228

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: E01F0008000000

Ipc: E04B0001860000

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: E04B 1/86 20060101AFI20130220BHEP

Ipc: E01F 8/00 20060101ALI20130220BHEP

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

INTG Intention to grant announced

Effective date: 20130920

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 639611

Country of ref document: AT

Kind code of ref document: T

Effective date: 20131215

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 60345228

Country of ref document: DE

Effective date: 20140102

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20131106

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 639611

Country of ref document: AT

Kind code of ref document: T

Effective date: 20131106

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131106

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131106

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131106

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131106

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131106

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140306

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131106

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 60345228

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131106

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131106

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131106

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131106

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131106

26N No opposition filed

Effective date: 20140807

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140319

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 60345228

Country of ref document: DE

Effective date: 20140807

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140331

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140319

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131106

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 14

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131106

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131106

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131106

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140207

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20030319

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140331

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131106

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20170203

Year of fee payment: 15

Ref country code: DE

Payment date: 20170207

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20170203

Year of fee payment: 15

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 60345228

Country of ref document: DE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20180319

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181002

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180319

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180331