CA2479258A1 - Acoustic construction element - Google Patents
Acoustic construction element Download PDFInfo
- Publication number
- CA2479258A1 CA2479258A1 CA002479258A CA2479258A CA2479258A1 CA 2479258 A1 CA2479258 A1 CA 2479258A1 CA 002479258 A CA002479258 A CA 002479258A CA 2479258 A CA2479258 A CA 2479258A CA 2479258 A1 CA2479258 A1 CA 2479258A1
- Authority
- CA
- Canada
- Prior art keywords
- cavities
- construction element
- acoustic
- acoustic construction
- sound
- 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.)
- Abandoned
Links
- 238000010276 construction Methods 0.000 title claims abstract description 29
- 239000011810 insulating material Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000004927 clay Substances 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 2
- 239000011707 mineral Substances 0.000 claims description 2
- 229910001562 pearlite Inorganic materials 0.000 claims 1
- 239000011449 brick Substances 0.000 description 17
- 239000000919 ceramic Substances 0.000 description 9
- 229910010293 ceramic material Inorganic materials 0.000 description 5
- 101000800807 Homo sapiens Tumor necrosis factor alpha-induced protein 8 Proteins 0.000 description 3
- 102100033649 Tumor necrosis factor alpha-induced protein 8 Human genes 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 239000011358 absorbing material Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000370685 Arge Species 0.000 description 1
- 241000283690 Bos taurus Species 0.000 description 1
- 241001050985 Disco Species 0.000 description 1
- 241000287828 Gallus gallus Species 0.000 description 1
- 241000234435 Lilium Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 235000008429 bread Nutrition 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 239000011469 building brick Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002592 echocardiography Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008774 maternal effect Effects 0.000 description 1
- PSGAAPLEWMOORI-PEINSRQWSA-N medroxyprogesterone acetate Chemical compound C([C@@]12C)CC(=O)C=C1[C@@H](C)C[C@@H]1[C@@H]2CC[C@]2(C)[C@@](OC(C)=O)(C(C)=O)CC[C@H]21 PSGAAPLEWMOORI-PEINSRQWSA-N 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 229920006327 polystyrene foam Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Classifications
-
- 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
- E01F8/0082—Cellular, e.g. as wall facing with damping material
-
- 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
- E04B1/8404—Sound-absorbing elements block-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
- E04B2001/8457—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
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Electromagnetism (AREA)
- Building Environments (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
Acoustic construction element comprising sound insulating cavities having a constant shape along an axis parallel to the exposed surface of the construction element, at least part of said cavities comprising a first portion, situated closest to the external surface of the element, having a smaller width than the maximum width of a second, internal portion of the cavity, of which: - at least part of said cavities have different depths; - at least part of said cavities have different internal volumes and/or different internal shapes; - at least part of said cavities have a substantially constant width over their entire depth; - and at least part of said cavities are completely or partially filled with sound insulating material.
Description
''""~~ lUU4 lh:U4 N. Y. K, U, ~. ~. A. U56/llbUl4 NK. lily f 02 2p0~;,~ " " OZO 13 _ 02 . 2 EP020~0~:5 . I : ~ ~. . . ., CA 02479258 2004-09-13 .,.,.~ ,...... ~ 1 ~".:
3~?'nry~:k~ f ,A,mended descri~ti,or~. ~.za response the wr~.tten ~a~ir~ion of 15.10.,2003 AGOUS"~IG Ct7~tSTRZICTION EIWNT
The present invent~.on, rele.tes to an acou$tic construction elemezzt comprising st~un,d insulating cavities .
l.~TUmerav.s variants of this type of acoustic construction 14 elemerJ.ts have 3aeen proposed in the art in order to provide a .more or less satisfactorar balance of the acoustic properties and the cost o~ praduction_ Many of these attempts are disclosed in the patent literature.
~5 ' In European patent a~plicatic~n n° Ep ~ 0 580 096, for examplC~, there ~.s described a sound-insul~ti~rr~, elemex~t having ~ wall exhibiting' perforations, and having a ca~rity which receives , a sound-absorba.zzg packing, whach 20 covers the mouths of the perforations.
The acoustic bricks usually' consist of ceramic material.
In French patent application n~ FR 2~1~226,, there is reveal~:d an acot~r>ti.c Zinir~g element., made of ~ bur~,t clay, 25 ceramic materials, cement, wood, plaster or the like.
This acoustic lining element comprises a plax~e rectangular face intended. to be attached to a wall_ The opposite face to this one comprises a networ3~ of ribs fc~rtning corrugations parallel to one of the sides.
,.~, :,.L
'AMENDED~.:SHEET
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,. . . osl i3.o2.2 ,.:.~~~_ Japanese patent application n~. JP 0932833 des crib s a sound-absorbing blQCk, obtained l~~r baking fire c~.ay, into which a pore imparting material is mixed, and fire-resisting ch~a'~to'tte. Ire the ceramic block, there ire boxed hol~a of different deptk~, drilled a7.Z over at right angles to the thickness direatiQn, The ceramic lalock is reported to have sound absorbing perforz~ance in a frequency band ha~rin.g broad width.
la Ire German patent application DE l98 23 139, there is described an acoustic ~:lement comprising sound .ir~e~.~.7.atiny cavities having a. eonsta~.t shape along an axis parallel to the expoeed. ur~'ace of the construction ele~tent, at 7,east part of said cavities are f~.r,st cavities comprising 1S a first pQrt.~.on, situated closest to the: external surface of the element, hatring a smaller width than, the maximum width. of a second, zx~ternal portion of the cavity.
~'u.xthermore, iri on.e or more df the embc~d.iments, for instance as shown in figure 2~ c~f 1~~ x.98 23 139, at least 2o pa.xt of said cavities are second cavities t~rhieh have a substantial7.y constant ~.,ridt~Z over their entire depth, and art partially filled with, damping str~.ps out c~f guy or a syr~,thetic material..
25 However, all first cavities have the same depth, and also all secor~.d cavities have the sazrte depth_ Only ixi all bf the second cavities, the same datttping strip is provzded.
zn this way, onllr a limited area of sQ~.n.~7, frec~,er~.c.ies cax~
be absorbed by such an acoustic cor~str~u.ata,oz~ element .
~a AfVfEN:DED~'SHEET' ~' ,", ' ~ ~ . 1UU4 15: U9 N. V, K. U. ~. 5. R. U54/Z16U14 IV K. 'Jill ~ 3 :02~ 200~.y ~ , ~....w....._~. ,.". , a.~ .., 012 13 _ 02 . 2~EP'0203045 CA 02479258 2004-09-13 ....,... ...w.o.~f ., German patent application DE ~3 2.2 1f9, l~xenc.~h pa,t~nt pu'b~.ication FR 2 746 $3x and US pai~ent applicatior~ US
2,281,121 describe Gonstruetion elements comprising catrities with different shapes and sizes.
DE 197 41 282 discloses acoustic construction elements showing several subsecjuent layers of cones of different structure and/or nature:, whereas part of said zones consist of ceramic foam.
~. 0 In TES 2,28.,121, a load bearing acoustic building block zs described which is formed of plastic material having a11, of the propert~.es of the vitrified building bJ.ock as to strength, appearance and density, an~3. provided with 25 sound absc~x~b~.ng properties, whereby the block may be used.
to construct tka.e- interior of walls and parti.tians of auc~itoxz~ums by being laid in mortar or cement in the usual mannEr, arid when so laid till absorb and diffuse audible sound waves strikir~g sand wall or partition to 20 prevez~t reflection of the same to st~.~h an extent that undesirable echoes may be eliminated within the room c~f building farmed of said blocl~s without the appli.Gation of iza,dependent sound absorbing material: In one of th.e embodiments c~f auck~ an acoustic building block, the 25 cavities are f~.lled with a c~uaxxtity of particles of mater~,az, such as sav,rdust or expara,ded mica flakes, to form sound absorbing filter, Each of the individual solutions thus proposed in the art 30 tc~ improve the properties of acoustic construction '.!~MENDED'~H~ETF_ ' ' . 1UU4 ,15: U5 N. V, K. U. ~. ~. A. Uhb/11 bUl4 NK. Wt~
~ 13f .02~200~; ~ . , , r, < < i ,r,t, : k a,. , , , 013 13 . 0 2 . 2 E P0203045 ' ~ ~ CA 02479258 2004-09=13 °°~~'w-v '°'"°
3~?'nry~:k~ f ,A,mended descri~ti,or~. ~.za response the wr~.tten ~a~ir~ion of 15.10.,2003 AGOUS"~IG Ct7~tSTRZICTION EIWNT
The present invent~.on, rele.tes to an acou$tic construction elemezzt comprising st~un,d insulating cavities .
l.~TUmerav.s variants of this type of acoustic construction 14 elemerJ.ts have 3aeen proposed in the art in order to provide a .more or less satisfactorar balance of the acoustic properties and the cost o~ praduction_ Many of these attempts are disclosed in the patent literature.
~5 ' In European patent a~plicatic~n n° Ep ~ 0 580 096, for examplC~, there ~.s described a sound-insul~ti~rr~, elemex~t having ~ wall exhibiting' perforations, and having a ca~rity which receives , a sound-absorba.zzg packing, whach 20 covers the mouths of the perforations.
The acoustic bricks usually' consist of ceramic material.
In French patent application n~ FR 2~1~226,, there is reveal~:d an acot~r>ti.c Zinir~g element., made of ~ bur~,t clay, 25 ceramic materials, cement, wood, plaster or the like.
This acoustic lining element comprises a plax~e rectangular face intended. to be attached to a wall_ The opposite face to this one comprises a networ3~ of ribs fc~rtning corrugations parallel to one of the sides.
,.~, :,.L
'AMENDED~.:SHEET
" .:: ...~ ... .. . .. . .. ... .: ., ° ~"~ ~~, ZUU4 l~: U5 N, V. K. U. ~, S. R. U56/116U14 NH 'm~~
,. . . osl i3.o2.2 ,.:.~~~_ Japanese patent application n~. JP 0932833 des crib s a sound-absorbing blQCk, obtained l~~r baking fire c~.ay, into which a pore imparting material is mixed, and fire-resisting ch~a'~to'tte. Ire the ceramic block, there ire boxed hol~a of different deptk~, drilled a7.Z over at right angles to the thickness direatiQn, The ceramic lalock is reported to have sound absorbing perforz~ance in a frequency band ha~rin.g broad width.
la Ire German patent application DE l98 23 139, there is described an acoustic ~:lement comprising sound .ir~e~.~.7.atiny cavities having a. eonsta~.t shape along an axis parallel to the expoeed. ur~'ace of the construction ele~tent, at 7,east part of said cavities are f~.r,st cavities comprising 1S a first pQrt.~.on, situated closest to the: external surface of the element, hatring a smaller width than, the maximum width. of a second, zx~ternal portion of the cavity.
~'u.xthermore, iri on.e or more df the embc~d.iments, for instance as shown in figure 2~ c~f 1~~ x.98 23 139, at least 2o pa.xt of said cavities are second cavities t~rhieh have a substantial7.y constant ~.,ridt~Z over their entire depth, and art partially filled with, damping str~.ps out c~f guy or a syr~,thetic material..
25 However, all first cavities have the same depth, and also all secor~.d cavities have the sazrte depth_ Only ixi all bf the second cavities, the same datttping strip is provzded.
zn this way, onllr a limited area of sQ~.n.~7, frec~,er~.c.ies cax~
be absorbed by such an acoustic cor~str~u.ata,oz~ element .
~a AfVfEN:DED~'SHEET' ~' ,", ' ~ ~ . 1UU4 15: U9 N. V, K. U. ~. 5. R. U54/Z16U14 IV K. 'Jill ~ 3 :02~ 200~.y ~ , ~....w....._~. ,.". , a.~ .., 012 13 _ 02 . 2~EP'0203045 CA 02479258 2004-09-13 ....,... ...w.o.~f ., German patent application DE ~3 2.2 1f9, l~xenc.~h pa,t~nt pu'b~.ication FR 2 746 $3x and US pai~ent applicatior~ US
2,281,121 describe Gonstruetion elements comprising catrities with different shapes and sizes.
DE 197 41 282 discloses acoustic construction elements showing several subsecjuent layers of cones of different structure and/or nature:, whereas part of said zones consist of ceramic foam.
~. 0 In TES 2,28.,121, a load bearing acoustic building block zs described which is formed of plastic material having a11, of the propert~.es of the vitrified building bJ.ock as to strength, appearance and density, an~3. provided with 25 sound absc~x~b~.ng properties, whereby the block may be used.
to construct tka.e- interior of walls and parti.tians of auc~itoxz~ums by being laid in mortar or cement in the usual mannEr, arid when so laid till absorb and diffuse audible sound waves strikir~g sand wall or partition to 20 prevez~t reflection of the same to st~.~h an extent that undesirable echoes may be eliminated within the room c~f building farmed of said blocl~s without the appli.Gation of iza,dependent sound absorbing material: In one of th.e embodiments c~f auck~ an acoustic building block, the 25 cavities are f~.lled with a c~uaxxtity of particles of mater~,az, such as sav,rdust or expara,ded mica flakes, to form sound absorbing filter, Each of the individual solutions thus proposed in the art 30 tc~ improve the properties of acoustic construction '.!~MENDED'~H~ETF_ ' ' . 1UU4 ,15: U5 N. V, K. U. ~. ~. A. Uhb/11 bUl4 NK. Wt~
~ 13f .02~200~; ~ . , , r, < < i ,r,t, : k a,. , , , 013 13 . 0 2 . 2 E P0203045 ' ~ ~ CA 02479258 2004-09=13 °°~~'w-v '°'"°
elements hav-~: shown to tae sat~,sfaatory to a ver~i Iimitecl extend.
Combining those various soJ.utic~r~s wauJ.d of course appear as a further way' forward but it h~,s shown that several of the proposed solutions are mutua~.ly e~cludiz~g ox give rise to praGtiGal teck~,micax problems .
The purpose of this invention is to combine, ~,n, a .~,.e~.
specific way, some of the px~aposed features with other added features so as to provide an acoustio construction ~.0 elemant having optimal properties.
'the ir~ventian thus provides' a sound insulating.
conatructxon element that aar~ absorb a bread raxxge of souz~.d frequencies and that caz~. be manutaotured depenr~.~,r~,g Qn the type or the frequency of noise pressure.
For znstan~e, the frequency of the disturbizzg noise that results from a trunk that drives on a highway dzffere Pram the noise that has to be absoxbed t~rhen one records a sox~.g in a music studio.
This object of the invention is aohieved by providing an I acaust.ic cc~~zstruc~Gian element comprising' sound insulating cavit~.es ha~~r~,ng a Constant shape along an axis parallel to the exposer,~. surface of the cozzstrv.otion e7.ement, at 2s least part of said cavities being fixst cavities aQm risin a first P 9 poxtion, situated closest to the ' external, surface of the element, having a smaller w~.dth than the maximum width of a second, internal portion of~ .
the cavit~r, and at .least part of said cavities (3 ) being 30 second cavities h~.ving a substa~,tially oonstant wzdth aver their entire depth, wherein .AMENDED ''S~iE'ET
3'13' ~ 2 2004: ~~ 1UU4 15: U6 N, Y. K. U. ~. S. A. U~b/11bU14 p~q N~i3i402..2;EP02~~3045 ~- a..l. ~r .s.. < a s..i ~ ~ CA 02479258 2004-09-13 ~,..... ~ ....a ...,, at least part of said first cavities and at least part of said secQn,d cavities have different depths;
- at least part of laid first cavities have different internal volumes and/or different internal shapes;
- at least part of said first and/or second cavities axe completely or.partiall~r filled with sound ir~.sulating maternal.
According t.o a first preferred feature of the 3nvent~.on, at ~ least part of the f~.rst cav~,ties have arx angular shape.
The intentivzx of this is to prQVide a vv7.ume ae ~.arge as possible after the entry.
Adcording 'to a furthex preferxed feature of the invention, at least paxt of the first cavities have a.
pseudo-rectangular shape. So, there ~.s more reflection of the sound inside the cavity.
~~Pseudo-rectangular means that the cavities hare at least one acute angle_ Tn a first embodiment, at Ieast 90 % of said first and/or second cavities are completely filled, with sound . insulating material, In a second embodiment accs~rd~.ng to the inventipza., at least ~p % of said first and/or second ca~rities are partially filled with sound insulating material.
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CA 02479258 2004-09-13 ~'- ~ ° '-Tn a preferred embodime~,t of the invention, said first and/or ~econcl cavities are completely or partia~,~.y filled with foamed mineral product.
Depending vn the circumstances when the cavities of an acoustic element are completely or part,.ially filled with such material, the absorption of the sound ~ is much better.
In another preferred embodiment accordira.~ to the invention, said f~,xst andjor second cavities are completely or partially fzlled with foamed clay, glass and pearlite_ ~.~ ~n a. first method for manufacturing acoustic constrv.cfi,iox~
elements according to the invention, the ezemox~, s are manufactured zz~ one step process.
Such method is used where the sound isQZatin~ material 2D has a bake curve correspondir~.~ to the material from which the acoustic cor~etruction~. elements are made.
A second method for manufact.uxing acoustic construction elements is to manufacture the elements in a tyro process 25 step.
In a two process step. the sound isalating~ rnateri,al, for e.~s.mple _ polystyrene foam ~su.ck~ as i~Qmo? . gl~,s~ wool,...
zs introduced in the cavities in a second process step.
This method zs o~ ct~uxse also applicable for materis.l ~AMEN:DED'SHEET", w ~ ~> , ~~~Y3 0~ 2k004~~. lUU4 1h: U6 N, V,' K. U. U. S, A. Uhb/116U14 NK. 'l~il?
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' ~ CA 02479258 2004-09-13 ~ ' n' °::~ w.':''' which has a bake curve corresponding to the material from which the acoustic canstx-uctiorz elements are made, Preferably, sa~.d construction element ie made o~ ceramic material. In this way, ceramic can$truction elements can be used as regulax building bricks. The construction element accor~.~ng to the invention can also be used as a traffic load carrxing canstrrtz..ctl4ri element.
Za The method for ma.nufactuxing acoustic construction, elements is preferably by way of extrusion of thca~ceramic materials.
Fu.x~ther distsr~,ctiwe features and characteristics vri~,l be clarified in the following description of a specific embodiment of the i~,ve~ttic~n as represented in the attached drawings, It should be noted that this embodiment is cal Y' given bar way of example and ~.m~lies na restriction in the general scope of the invention as that appears from the ~.bove description and from the claims at the end of this text.
~n the attached drawings:
i - figure 1 is a cross section of an acoustic const:x-uctian element; , figure 2 as a cross section of an acQU.stic construction ~:lamerlt of v~hich tl~e cavita.es have an angular sh.apeo - figure 3 is a. cxoss section of an acoustic cQZZStrt~ction element of which tJ~e cavities have an angtxlax or 3 0 pseu~I~-rectanguzar shape .
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' . CA 02479258 2004-09-13 As chown ira, figure 1, the acoustic construct,~.an element is an acoustic brick (I)' with a ~.er~gth of 3~4 cm. , a height of ~ cm. and a width of 10 em. Tb.e~ brick is manufactured by e:~trusidn of ~ ceramic material, more specific red-taxing clay. The acoustic larick has a smooth surface. By using ath,er clays or by addition of aggregates to the base material, the brick cap. obtain a different aa~.our or even a sandy strudture. The s~.x~face can also be xough. In function of the compositic~za., 1o characteristics as the abss~rption of water, the zr~tenszty of tl~e press~.xe, etc can differ.
As shown in figures 1, 2 and 3, the acoustic brick (1) compr~.ses at a.rregulax distazzces, separate entries (2) of cavities (3 ) , the cavities in, gen.a.xal are desigr~ated by refex~er~,ce numerals 3 , etc. , which:
have different depths, this difference ~.s shown in figure 1, where one notices that eavi.ty ~0 _ (3.lZ.a) is deeper than~cavity (3.10. a);
,~ _ have different interzial vo7.umes ..and~or different ' shapes, there are cavities which, have an angular shape (3.z.a, 3.a.a, ~.3.a, 3.4.a, 3.7.a) and cavities with an. pseuda~rectan,guZar shape. (3.5.b, 2$ 3.6.b, 3.8.b, 3.9.b).
The purpose behind this is to obtain a volume as large as pacsibZe after the entry c~f the ca.vzty (5) - have a suJastantial,~.y constant width over their ~C~ Entire depth;
~~AMENDEp°SH~ET~"
~. 1UU4 lb:Ul - N. V. K. U. ~. 5, p, U5b/Z1bU14 0l8 N~i3j,o2.2~EPa203045A
. ~~ ~ CA 02479258 2004-09-13 "'°~' ~''~t ~' -k - are completely or partially filled with sound ir~sulat~.z~g me,teriaX, according to the f~.gur~s 1, 2 s.nd 3, all the cavities in fig~uxe 1 ark completely filled, zn figure 2 and 3, axe 3.1a, 3 .2a, 3 . 3a 3 . 5~b, 3 . 5b, 3 . ~a arid 3 . 8b partiall~r filled. The o~ber cavities 3 . ~a a.nd 3 . 51a are ac~mpletely filled.
.A posszble sound insulating material is ceramic foam. Ceramic foam is a very pQxov.s material with, 1Q a very row coefficient of ~Zeat Conduction.
The brick has thus a two.-fold function: for one, the ceramic mass takes care for the absorpticsn of th~~ s~,~d -the ceramic mass is the combination of the brick and the sound absorbing material -, "find for s,n.other, the cavities, part~,a,lly or aompletexy fi7.led with noun-ci insulating material, are dimensioned ire. such a way that throv,gh the ~re.y of internal reflection, the sound d.pesn't I
get the chance to.be reflected into free space.
.
2b In th~,s way, the depth, tl~e shape and. the ir~te~'na~, volume of the cavit~.es (3 ) and wtheir positic~z~, on the stone can be adapted in funct~.on of certazn types of treq,,~,enczes and/or the level of the sound that has to be adsorbed.
I
An other object oW the invention is the method of manufacturing an acoustic construction, element comprising so'~u~,d ira.sulating cavities .
~i f ixst met~ZOd i s to manuf act'are a brick in one proces s 3 Q step , I3ereby, the brick zs extruded. of ceramic ~materiaz e.nd is provided w~.th a cavity {3) .
~/AMENDED~ SHE~ET~=
..- .: ~. .-::
,~ s "~. ZUU4 lh:Ul N, Y. K, U, ~. 5, A. U56/llbUl4 NK
;~;ir3 0~~~004° . , ~, ". ~ °_ 019 13.02.2 EF~0~0304;5 ~' r W ~, m.~...~; ~Nn ,....,..~~ ;;=:v CA 02479258 2004-09-13 ~. ,.t,: ,.,: , ~
, : .,.,..
After the dxying of the foamed, stox~,e, the sound insulting material is introduced tk~rough the entry (~) of the cavit~r (3) . fhi,s cor~bznatic~n (brick+sor~~.d ix~~ulatii~.g material) is brought into a hating c~evic~e where during 5 one process step baking s.s well as expansion of the sound insulating material happened..
'use of this method is only possible if Whe sound .insulating material has a bake auxve coxrespQ~ding to the material from which tie acoustic oonstruction elements are made.
Another method for mariufacturin.g a constx~uctir~n, element aecsording to the inve~.~ioz~, is ~o fabricate a brick a.n a two process step.' 15 Hereby, the sound insulating materials, far example glass wool, fos.mec'~ plastic (such as isomo) ,... are introduced in.
a second process step, after the drying and ba7~ing of the brick. .
~0 The acoustic constructa.on element accordixxg to the ,. irwwntiar~, can be used in, every place wlz.ere noise or 'noise pollution is an item, fs~r iz~stanae in:
- laboratory - hc~sgitals S - industry I -as an inside Qr outside wall of factories, offices,...
around oc~mpressors, motors, machines and, computer rooms - concert halls, theatres, disco s, exposition hal~.s, cinema zooms, hotel aad catering zzzdustry,", ,ANIE,NDED,':SHEET
r : ,.:.. ,.:..:... ,._.f ,...-'"13~'02'200~,'_~. ZUU4 IS:UI N Nt.V,(V K, U. ~, 5. A, U56/ZlbUl4 020 N~13ii02.2 ~. ".M , .. .
w'°' 'rE ~' ' "'"F= CA 02479258 2004-09-13 EPQ203045 ~.1 .along motorways, highways, train sections, stations, airports,...
as a partitiQZ~ wall. in apartment bt~ild.~.ngs arid office buiZdin~s: around ele~rator shafts, engine rooms,...
-S municipal buildings: libraxies, sport halls, cultv.ral centres, school azad universities - agricu~.ture ar.d cattle breeding: p~.g Farms, chicken crops, ...
In. certain applicatior~$r the cavities can also serge as a carrier of technical pipes for, for instaz~.ce, electricity, computers, telephone, sanitary, heating, ...
The bricks or the panels oan be maunt.ec'~ either harizonta7.ly-, either ~cnerticall~r, or ire a combination of the twc~, can be glued together or laid in bricks, or can function as s, carrying or non-carrying part. Far example, ' the bricks can be used as road blocks on which traffic c.an circu7.ate. The disturbing Frequencies that arise when car types roll cover tk~e road surface can be absorbed by lt,sin~ the acøuetic bricks as horizontal carrying driviz~g surfaces. The cavities that are present in the bricks could also function for drainix~,g the s~~ess of water when it's rainincg.
~AMfENDED SHEET-'.
Combining those various soJ.utic~r~s wauJ.d of course appear as a further way' forward but it h~,s shown that several of the proposed solutions are mutua~.ly e~cludiz~g ox give rise to praGtiGal teck~,micax problems .
The purpose of this invention is to combine, ~,n, a .~,.e~.
specific way, some of the px~aposed features with other added features so as to provide an acoustio construction ~.0 elemant having optimal properties.
'the ir~ventian thus provides' a sound insulating.
conatructxon element that aar~ absorb a bread raxxge of souz~.d frequencies and that caz~. be manutaotured depenr~.~,r~,g Qn the type or the frequency of noise pressure.
For znstan~e, the frequency of the disturbizzg noise that results from a trunk that drives on a highway dzffere Pram the noise that has to be absoxbed t~rhen one records a sox~.g in a music studio.
This object of the invention is aohieved by providing an I acaust.ic cc~~zstruc~Gian element comprising' sound insulating cavit~.es ha~~r~,ng a Constant shape along an axis parallel to the exposer,~. surface of the cozzstrv.otion e7.ement, at 2s least part of said cavities being fixst cavities aQm risin a first P 9 poxtion, situated closest to the ' external, surface of the element, having a smaller w~.dth than the maximum width of a second, internal portion of~ .
the cavit~r, and at .least part of said cavities (3 ) being 30 second cavities h~.ving a substa~,tially oonstant wzdth aver their entire depth, wherein .AMENDED ''S~iE'ET
3'13' ~ 2 2004: ~~ 1UU4 15: U6 N, Y. K. U. ~. S. A. U~b/11bU14 p~q N~i3i402..2;EP02~~3045 ~- a..l. ~r .s.. < a s..i ~ ~ CA 02479258 2004-09-13 ~,..... ~ ....a ...,, at least part of said first cavities and at least part of said secQn,d cavities have different depths;
- at least part of laid first cavities have different internal volumes and/or different internal shapes;
- at least part of said first and/or second cavities axe completely or.partiall~r filled with sound ir~.sulating maternal.
According t.o a first preferred feature of the 3nvent~.on, at ~ least part of the f~.rst cav~,ties have arx angular shape.
The intentivzx of this is to prQVide a vv7.ume ae ~.arge as possible after the entry.
Adcording 'to a furthex preferxed feature of the invention, at least paxt of the first cavities have a.
pseudo-rectangular shape. So, there ~.s more reflection of the sound inside the cavity.
~~Pseudo-rectangular means that the cavities hare at least one acute angle_ Tn a first embodiment, at Ieast 90 % of said first and/or second cavities are completely filled, with sound . insulating material, In a second embodiment accs~rd~.ng to the inventipza., at least ~p % of said first and/or second ca~rities are partially filled with sound insulating material.
s;'~4 :A~~NDED'~SHEET
s °, ~'1f 3 ',02 2004 E~ b ~ l U U 4 1 ~ : U b N. V. K. U. ~. S. R, U 5 b/ l .l b U
14 N K. W i a 015 13 . 02 . 2 EP0203~4.5 , ',. _ a.~. .~t~ . t _. ~ , .
CA 02479258 2004-09-13 ~'- ~ ° '-Tn a preferred embodime~,t of the invention, said first and/or ~econcl cavities are completely or partia~,~.y filled with foamed mineral product.
Depending vn the circumstances when the cavities of an acoustic element are completely or part,.ially filled with such material, the absorption of the sound ~ is much better.
In another preferred embodiment accordira.~ to the invention, said f~,xst andjor second cavities are completely or partially fzlled with foamed clay, glass and pearlite_ ~.~ ~n a. first method for manufacturing acoustic constrv.cfi,iox~
elements according to the invention, the ezemox~, s are manufactured zz~ one step process.
Such method is used where the sound isQZatin~ material 2D has a bake curve correspondir~.~ to the material from which the acoustic cor~etruction~. elements are made.
A second method for manufact.uxing acoustic construction elements is to manufacture the elements in a tyro process 25 step.
In a two process step. the sound isalating~ rnateri,al, for e.~s.mple _ polystyrene foam ~su.ck~ as i~Qmo? . gl~,s~ wool,...
zs introduced in the cavities in a second process step.
This method zs o~ ct~uxse also applicable for materis.l ~AMEN:DED'SHEET", w ~ ~> , ~~~Y3 0~ 2k004~~. lUU4 1h: U6 N, V,' K. U. U. S, A. Uhb/116U14 NK. 'l~il?
,. '.~.r.~;: ., . ..,. .~..xa,. ~ . ~ 016 13 . 02 2 E1~0203Q45 E
' ~ CA 02479258 2004-09-13 ~ ' n' °::~ w.':''' which has a bake curve corresponding to the material from which the acoustic canstx-uctiorz elements are made, Preferably, sa~.d construction element ie made o~ ceramic material. In this way, ceramic can$truction elements can be used as regulax building bricks. The construction element accor~.~ng to the invention can also be used as a traffic load carrxing canstrrtz..ctl4ri element.
Za The method for ma.nufactuxing acoustic construction, elements is preferably by way of extrusion of thca~ceramic materials.
Fu.x~ther distsr~,ctiwe features and characteristics vri~,l be clarified in the following description of a specific embodiment of the i~,ve~ttic~n as represented in the attached drawings, It should be noted that this embodiment is cal Y' given bar way of example and ~.m~lies na restriction in the general scope of the invention as that appears from the ~.bove description and from the claims at the end of this text.
~n the attached drawings:
i - figure 1 is a cross section of an acoustic const:x-uctian element; , figure 2 as a cross section of an acQU.stic construction ~:lamerlt of v~hich tl~e cavita.es have an angular sh.apeo - figure 3 is a. cxoss section of an acoustic cQZZStrt~ction element of which tJ~e cavities have an angtxlax or 3 0 pseu~I~-rectanguzar shape .
,. ,;
''/~IVI~NDED;:'SHEE'T
'° ~' ' ~ ~ ''~ ZUU4 lh:Ub N. V, K, U. B. 5. A. Uhb/21bU14 ~K 'm«
02'200' ' ' 017 13.02.2 a::::F~.,~:ra;::a;.~;-J~:~,:~;s~;~.:v.Y~ ~ a ~
' . CA 02479258 2004-09-13 As chown ira, figure 1, the acoustic construct,~.an element is an acoustic brick (I)' with a ~.er~gth of 3~4 cm. , a height of ~ cm. and a width of 10 em. Tb.e~ brick is manufactured by e:~trusidn of ~ ceramic material, more specific red-taxing clay. The acoustic larick has a smooth surface. By using ath,er clays or by addition of aggregates to the base material, the brick cap. obtain a different aa~.our or even a sandy strudture. The s~.x~face can also be xough. In function of the compositic~za., 1o characteristics as the abss~rption of water, the zr~tenszty of tl~e press~.xe, etc can differ.
As shown in figures 1, 2 and 3, the acoustic brick (1) compr~.ses at a.rregulax distazzces, separate entries (2) of cavities (3 ) , the cavities in, gen.a.xal are desigr~ated by refex~er~,ce numerals 3 , etc. , which:
have different depths, this difference ~.s shown in figure 1, where one notices that eavi.ty ~0 _ (3.lZ.a) is deeper than~cavity (3.10. a);
,~ _ have different interzial vo7.umes ..and~or different ' shapes, there are cavities which, have an angular shape (3.z.a, 3.a.a, ~.3.a, 3.4.a, 3.7.a) and cavities with an. pseuda~rectan,guZar shape. (3.5.b, 2$ 3.6.b, 3.8.b, 3.9.b).
The purpose behind this is to obtain a volume as large as pacsibZe after the entry c~f the ca.vzty (5) - have a suJastantial,~.y constant width over their ~C~ Entire depth;
~~AMENDEp°SH~ET~"
~. 1UU4 lb:Ul - N. V. K. U. ~. 5, p, U5b/Z1bU14 0l8 N~i3j,o2.2~EPa203045A
. ~~ ~ CA 02479258 2004-09-13 "'°~' ~''~t ~' -k - are completely or partially filled with sound ir~sulat~.z~g me,teriaX, according to the f~.gur~s 1, 2 s.nd 3, all the cavities in fig~uxe 1 ark completely filled, zn figure 2 and 3, axe 3.1a, 3 .2a, 3 . 3a 3 . 5~b, 3 . 5b, 3 . ~a arid 3 . 8b partiall~r filled. The o~ber cavities 3 . ~a a.nd 3 . 51a are ac~mpletely filled.
.A posszble sound insulating material is ceramic foam. Ceramic foam is a very pQxov.s material with, 1Q a very row coefficient of ~Zeat Conduction.
The brick has thus a two.-fold function: for one, the ceramic mass takes care for the absorpticsn of th~~ s~,~d -the ceramic mass is the combination of the brick and the sound absorbing material -, "find for s,n.other, the cavities, part~,a,lly or aompletexy fi7.led with noun-ci insulating material, are dimensioned ire. such a way that throv,gh the ~re.y of internal reflection, the sound d.pesn't I
get the chance to.be reflected into free space.
.
2b In th~,s way, the depth, tl~e shape and. the ir~te~'na~, volume of the cavit~.es (3 ) and wtheir positic~z~, on the stone can be adapted in funct~.on of certazn types of treq,,~,enczes and/or the level of the sound that has to be adsorbed.
I
An other object oW the invention is the method of manufacturing an acoustic construction, element comprising so'~u~,d ira.sulating cavities .
~i f ixst met~ZOd i s to manuf act'are a brick in one proces s 3 Q step , I3ereby, the brick zs extruded. of ceramic ~materiaz e.nd is provided w~.th a cavity {3) .
~/AMENDED~ SHE~ET~=
..- .: ~. .-::
,~ s "~. ZUU4 lh:Ul N, Y. K, U, ~. 5, A. U56/llbUl4 NK
;~;ir3 0~~~004° . , ~, ". ~ °_ 019 13.02.2 EF~0~0304;5 ~' r W ~, m.~...~; ~Nn ,....,..~~ ;;=:v CA 02479258 2004-09-13 ~. ,.t,: ,.,: , ~
, : .,.,..
After the dxying of the foamed, stox~,e, the sound insulting material is introduced tk~rough the entry (~) of the cavit~r (3) . fhi,s cor~bznatic~n (brick+sor~~.d ix~~ulatii~.g material) is brought into a hating c~evic~e where during 5 one process step baking s.s well as expansion of the sound insulating material happened..
'use of this method is only possible if Whe sound .insulating material has a bake auxve coxrespQ~ding to the material from which tie acoustic oonstruction elements are made.
Another method for mariufacturin.g a constx~uctir~n, element aecsording to the inve~.~ioz~, is ~o fabricate a brick a.n a two process step.' 15 Hereby, the sound insulating materials, far example glass wool, fos.mec'~ plastic (such as isomo) ,... are introduced in.
a second process step, after the drying and ba7~ing of the brick. .
~0 The acoustic constructa.on element accordixxg to the ,. irwwntiar~, can be used in, every place wlz.ere noise or 'noise pollution is an item, fs~r iz~stanae in:
- laboratory - hc~sgitals S - industry I -as an inside Qr outside wall of factories, offices,...
around oc~mpressors, motors, machines and, computer rooms - concert halls, theatres, disco s, exposition hal~.s, cinema zooms, hotel aad catering zzzdustry,", ,ANIE,NDED,':SHEET
r : ,.:.. ,.:..:... ,._.f ,...-'"13~'02'200~,'_~. ZUU4 IS:UI N Nt.V,(V K, U. ~, 5. A, U56/ZlbUl4 020 N~13ii02.2 ~. ".M , .. .
w'°' 'rE ~' ' "'"F= CA 02479258 2004-09-13 EPQ203045 ~.1 .along motorways, highways, train sections, stations, airports,...
as a partitiQZ~ wall. in apartment bt~ild.~.ngs arid office buiZdin~s: around ele~rator shafts, engine rooms,...
-S municipal buildings: libraxies, sport halls, cultv.ral centres, school azad universities - agricu~.ture ar.d cattle breeding: p~.g Farms, chicken crops, ...
In. certain applicatior~$r the cavities can also serge as a carrier of technical pipes for, for instaz~.ce, electricity, computers, telephone, sanitary, heating, ...
The bricks or the panels oan be maunt.ec'~ either harizonta7.ly-, either ~cnerticall~r, or ire a combination of the twc~, can be glued together or laid in bricks, or can function as s, carrying or non-carrying part. Far example, ' the bricks can be used as road blocks on which traffic c.an circu7.ate. The disturbing Frequencies that arise when car types roll cover tk~e road surface can be absorbed by lt,sin~ the acøuetic bricks as horizontal carrying driviz~g surfaces. The cavities that are present in the bricks could also function for drainix~,g the s~~ess of water when it's rainincg.
~AMfENDED SHEET-'.
Claims (10)
1. Acoustic construction element comprising sound insulating cavities (3) having a constant shape along are axis parallel to the exposed surface of the construction element (1), at least part of said cavities (3) being first cavities (3.1.a-3.9.a) comprising a first portion, situated closest to the external surface of the element (1), having a smaller width than the maximum width of a second, internal portion of the cavity (3.1.a-3.9.a), and at least part of said cavities (3) being second cavities having a substantially constant width over their entire depth, characterised in that at least part of said first cavities (3.1.a-3.9.a) and at least part of said second cavities have different depths;
at least part of said first cavities (3.1.a-3.9.a) have different internal volumes and/or different internal shapes;
at least part of said first (3.1.a-3.9.a) and/or second cavities are completely or partially filled with sound insulating material.
at least part of said first cavities (3.1.a-3.9.a) have different internal volumes and/or different internal shapes;
at least part of said first (3.1.a-3.9.a) and/or second cavities are completely or partially filled with sound insulating material.
2. Acoustic construction element according to claim 1, characterised in that at least part of the first cavities (3.1.a-3.9.a) have an angular shape.
3. Acoustic construction element according to claim 1, characterised in that at least part of the first cavities (3.1.a-3.9.a) have a pseudo-angular shape.
4. Acoustic construction element according to any one of claims 1 to 3, characterised in that at least 90%
of said first (3.1.a-3.9.a) and/or second cavities are completely filled with sound insulating material.
of said first (3.1.a-3.9.a) and/or second cavities are completely filled with sound insulating material.
5. Acoustic construction element according to any one of claims 1 to 3, characterised in that at least 90%
of said first (3.1.a-3.9.a.) and/or second cavities are partially filled with sound insulating material.
of said first (3.1.a-3.9.a.) and/or second cavities are partially filled with sound insulating material.
6. Acoustic construction element according to any one of claims 1 to 5, characterised in that said said first (3.1.a-3.9.a.) and/or second cavities are completely of partially filled with a foamed mineral product.
7. Acoustic construction element according to any one of claims 1 to 5, characterised in that said said first (3.1.a-3.9.a.) and/or second cavities are completely or partially filled with foamed clay, glass or pearlite.
8. Method for manufacturing acoustic construction elements according to any one of claims 1 to 7, characterised in that said elements (1) are manufactured in one step process, whereas the sound isolating material has a bake curve corresponding to the material from which the acoustic construction elements are made.
9. Method for manufacturing acoustic construction elements according to any one of claims 1 to 7, characterised in that said elements (1) are manufactured in a two step process, whereas the sound isolating material is introduced in the cavities in a second process step.
10. Use of an acoustic construction element according to any one of claims 1 to 8, characterised in that said construction element (1) is used as a traffic load carrying construction element.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2002/003045 WO2003076736A1 (en) | 2002-03-14 | 2002-03-14 | Acoustic construction element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2479258A1 true CA2479258A1 (en) | 2003-09-18 |
Family
ID=27798760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002479258A Abandoned CA2479258A1 (en) | 2002-03-14 | 2002-03-14 | Acoustic construction element |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20050167193A1 (en) |
| EP (1) | EP1483457A1 (en) |
| AU (1) | AU2002257683A1 (en) |
| CA (1) | CA2479258A1 (en) |
| WO (1) | WO2003076736A1 (en) |
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| CN101151417B (en) * | 2005-03-30 | 2011-05-04 | 松下电器产业株式会社 | Sound absorption structure body |
| US7322441B2 (en) * | 2005-04-14 | 2008-01-29 | Rpg Diffusor Systems, Inc. | Extended bandwidth folded well diffusor |
| US7428948B2 (en) * | 2005-08-11 | 2008-09-30 | Rpg Diffusor Systems, Inc. | Hybrid amplitude-phase grating diffusers |
| ITRE20080088A1 (en) * | 2008-09-29 | 2010-03-30 | Ceramiche Sadon S P A | '' CERAMIC SHEET FOR COATING, PLANT AND PRODUCTION METHOD " |
| ITPI20090156A1 (en) * | 2009-12-11 | 2011-06-12 | Urbantech S R L | PORENBETON PANELS WITH HOLES TO INCREASE THE SOUND ABSORPTION CAPACITY FOR THEIR USE AS ANTI-NOISE BARRIER. |
| US20120247867A1 (en) * | 2010-01-08 | 2012-10-04 | Jun Yang | Composite sound-absorbing device with built in resonant cavity |
| US8410660B2 (en) * | 2010-01-13 | 2013-04-02 | The Aerospace Corporation | Acoustic devices embedded in photostructurable ceramics |
| JP5771973B2 (en) * | 2010-05-17 | 2015-09-02 | ヤマハ株式会社 | Acoustic structure |
| ES2397596B1 (en) * | 2011-02-07 | 2014-01-16 | Asociación Española De Fabricantes De Azulejos Y Pavimentos Cerámicos (Ascer) | CERAMIC PIECE FOR ACOUSTIC CONDITIONING. |
| EP2524788A1 (en) * | 2011-05-16 | 2012-11-21 | Sealed Air Corporation (US) | Method of perforating a foam structure and an acoustic foam structure |
| JP2013250501A (en) * | 2012-06-04 | 2013-12-12 | Three M Innovative Properties Co | Sound absorbing board |
| JP5761136B2 (en) * | 2012-07-31 | 2015-08-12 | ヤマハ株式会社 | Acoustic structure |
| US9058799B2 (en) * | 2013-05-16 | 2015-06-16 | University Of Dammam | Sound diffuser inspired by cymatics phenomenon |
| DK3049587T3 (en) * | 2013-09-24 | 2022-02-14 | Preston Wilson | Underwater noise attenuation panel and resonator structure |
| DK3084093T3 (en) | 2013-12-17 | 2019-02-25 | Adbm Corp | Underwater noise cancellation systems using an open-ended resonator arrangement and apparatus for use in the exploitation |
| US9290274B2 (en) * | 2014-06-02 | 2016-03-22 | Mra Systems, Inc. | Acoustically attenuating sandwich panel constructions |
| GB201410856D0 (en) * | 2014-06-18 | 2014-07-30 | Carbon Air Ltd | Vibration propagation |
| TWI625446B (en) * | 2015-06-18 | 2018-06-01 | 德克薩斯大學體系董事會 | Resonator, resonator array for damping acoustic energy from source in liquid and noise abatement system |
| EP3340236B1 (en) * | 2015-08-20 | 2020-04-08 | FUJIFILM Corporation | Soundproof structure, louver, and soundproof wall |
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| DE3228126A1 (en) * | 1982-07-28 | 1984-02-09 | Basf Ag, 6700 Ludwigshafen | Process for the manufacture of porous ceramic products with poreless top layers |
| DE3322189A1 (en) | 1983-06-21 | 1985-01-10 | Sf-Vollverbundstein-Kooperation Gmbh, 2820 Bremen | Sound-absorbing shaped block and sound-insulation wall made of shaped blocks |
| FR2612225A1 (en) | 1987-03-11 | 1988-09-16 | Gilson Pierre | Acoustic lining element, particularly for noise-reducing walls |
| JP2933322B2 (en) * | 1989-06-30 | 1999-08-09 | 日東紡績株式会社 | Sound absorber |
| US4964486A (en) * | 1989-11-06 | 1990-10-23 | Rpg Diffusor Systems, Inc. | Cinder block modular diffusor |
| DE9209991U1 (en) | 1992-07-24 | 1992-09-24 | Erlus Baustoffwerke Ag, 8301 Neufahrn | Soundproofing element |
| DE4433103A1 (en) * | 1994-09-16 | 1996-03-21 | Fraunhofer Ges Forschung | Sound absorbing porous body |
| DE29623096U1 (en) * | 1996-03-19 | 1997-10-16 | Erge, Kurt, 06120 Halle | Device for producing lightweight composite bricks and composite lightweight bricks made therewith |
| FR2746831B1 (en) | 1996-03-29 | 1998-07-10 | Joseph Perasso Et Ses Fils | MODULAR CONSTRUCTION OR RENOVATION ELEMENT FOR PHONIC PROTECTION |
| JPH09328833A (en) | 1996-06-07 | 1997-12-22 | Isolite Kogyo Kk | Ceramic sound absorbing material |
| DE19741282A1 (en) | 1997-09-19 | 1999-04-08 | Diha Schneider Gmbh | Building brick |
| DE19823139C2 (en) | 1998-04-01 | 2000-09-07 | Jerzy Lech | Soundproofing interior or exterior wall cladding |
| AU2000274196A1 (en) * | 2000-09-13 | 2002-03-26 | Wienerberger Bricks N.V. | Acoustic construction element for sound insulation in a broad range of frequencies |
| US6772859B2 (en) * | 2002-09-26 | 2004-08-10 | Rpg Diffusor Systems, Inc. | Embodiments of aperiodic tiling of a single asymmetric diffusive base shape |
-
2002
- 2002-03-14 US US10/507,123 patent/US20050167193A1/en not_active Abandoned
- 2002-03-14 EP EP02727439A patent/EP1483457A1/en not_active Withdrawn
- 2002-03-14 CA CA002479258A patent/CA2479258A1/en not_active Abandoned
- 2002-03-14 WO PCT/EP2002/003045 patent/WO2003076736A1/en not_active Application Discontinuation
- 2002-03-14 AU AU2002257683A patent/AU2002257683A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| AU2002257683A1 (en) | 2003-09-22 |
| EP1483457A1 (en) | 2004-12-08 |
| WO2003076736A1 (en) | 2003-09-18 |
| US20050167193A1 (en) | 2005-08-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |