US2280631A - Facing sheet for sound absorbing material - Google Patents

Facing sheet for sound absorbing material Download PDF

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Publication number
US2280631A
US2280631A US273649A US27364939A US2280631A US 2280631 A US2280631 A US 2280631A US 273649 A US273649 A US 273649A US 27364939 A US27364939 A US 27364939A US 2280631 A US2280631 A US 2280631A
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US
United States
Prior art keywords
tile
plaster
perforations
sound absorbing
absorbing material
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
US273649A
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English (en)
Inventor
Cyril L Coffey
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.)
Burgess Battery Co
Original Assignee
Burgess Battery Co
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 Burgess Battery Co filed Critical Burgess Battery Co
Application granted granted Critical
Publication of US2280631A publication Critical patent/US2280631A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B1/8409—Sound-absorbing elements sheet-shaped
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B15/00—Elements, tools, or details of ploughs
    • A01B15/02—Plough blades; Fixing the blades
    • 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
    • E04B2001/8423—Tray or frame type panels or blocks, with or without acoustical filling
    • E04B2001/8433—Tray or frame type panels or blocks, with or without acoustical filling with holes in their face
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8423—Tray or frame type panels or blocks, with or without acoustical filling
    • E04B2001/8442—Tray type elements

Definitions

  • This invention relates to sound absorbing constructions in the acoustical treatment of the ceilings, walls or the like of rooms and more particularly to the facings or coverings employed for the sound absorbing material.
  • the facing sheets for use in conjunction with the sound absorbing material consist of rigid perforated metal sheets or perforated fibre-cement sheets backed with sound absorbing material. Neither perforated metal sheets nor perforated fibre-cement sheets are however satisfactory foundation for interior decoration.
  • Moulded fibre-plaster or plaster sheets would be highly satisfactory for interior decoration but in order to obtain the requisite strength the sheets must be made about 1A" or 3A," in thickness whereas perforated fibre-cement sheets need only be 1/8" in thickness and metal sheets, such as iron, zinc, aluminum, etc., need only be of 26 gauge. Owing to the thickness which would be necessary if the sheets were made of fibre-plaster or plaster the pins used in forming the perforations would be liable to tear away portions of plaster when they are being withdrawn. Also the sharp edges of the holes might be broken away subsequently. Again the greatly increased depth of the holes would tend to reduce the sound absorption, particularly at high frequencies.
  • An object of the invention is to provide a facing tile or panel of plaster, preferably a gypsum plaster, or fibre-plaster in which the liability of defacement of the tile around the edges of the hole is minimized. Another object is to improve the efficiency and appearance of the tile or panel and to provide tiles or panels which when set Il.
  • a still furtherobject is to provide a facing tile or panel in which, due to the form of the holes, the sound deadening qualities of the panel or tile are enhanced.
  • the perforated facing tiles or panels are formed of plaster or fibre-plaster, and are provided with rearwardly extending flanges to form a pocket or seating to receive the sound absorbing material, and are recessed in the neighbourhood of each perforation on one or both faces. Recesses and portions of perforations are provided along an edge or edges of the tiles according to the position of the perforations on the tile or panel in such manner that when the tiles are assembled in abutting relation the recessed portions and portions of perforations form mating halves so that an assembly of tiles will present the appearance of a continuous perforated surface.
  • the perforations are formed with a double conical taper.
  • Such a tile it is preferably moulded between male and female dies which reduce the thickness of the plaster surrounding each hole by forming recesses in each face of the plaster.
  • These recesses may be conical or dome-shaped or may be grooves.
  • a very suitable construction is to provide conical or dome-shaped recesses on the inner face, which will be adjacent to the sound-absorbing material, and to provide a series of intersecting grooves on the outer face arranged with the perforations at the intersections of the grooves.
  • the grooves may be more or less V-shaped or U-shaped or of other similar shape.
  • each side of the tile may be formed a half-V or half-U or like groove so that when two tiles are placed together there is a V-shaped or U-shaped or like groove at their junction.
  • Fig. 1 is a plan view of a portion of one form of the improved tile and Fig. 2 a transverse section on the line 2-2 of Fig. 1.
  • Figs. 3 to 6 illustrate another form of tile, Fig. 3, being a plan view of a portion of the tile, Fig. 4 an inverted plan view, Fig. 5 a. section onv the line 5-5 of Fig. 3 and Fig. 6 a section on the line 6-6 of Fig. 3.
  • Fig. 7 is a detail showing an alternative form of perforation, While Figs. 8 and 9 illustrate a modied form of the tile shown in Figs. 3 to 6, Fig. 8 being an inverted plan view and Fig. 9 a section on the line 9 9 of Fig. 8.
  • II denotes the body of the tile
  • I2 its front or normally exposed face
  • I3 its rear face
  • I4 denotes the rearwardly extending flange of the tile forming in the rear of the tile
  • a seating or pocket I5 to receive sound absorbing material (not shown).
  • I6 indicates the perforations and I'I the recesses.
  • each perforation I6 ls surrounded on the front face by a hemispherical recess I'I which serves to reduce the eilective length of the cylindrical part of the hole and facilitates the withdrawal of the pins used in moulding the tile.
  • half holes I8 extending substantially a depth equal to the normal thickness of a tile and (zo-operating half recessed portions I9 which mate with similar portions oi holes and. recesses on an adjacent tile so that when the tiles are assembled they present a continuous series of perforations.
  • the recesses in the face of the tile are constituted by grooves il of v-shape intersecting at right angles.
  • the perforations Iii are formed at the intersections of the grooves and are therefore of less depth than the thickness of the panel so that the pins which form the perforations may be easily withdrawn.
  • the rear end portions of the holes may be suitably ilared for the same purpose.
  • Figs. 3 and 5 the side edges of the front face of the panels are bevelled and formed with half perforations so that when the panels are assembled in abutting relation they present the appearance of a continuous panel with regularly spaced perforations and grooves.
  • the perforations IE are iiared from both sides of the body of the panel so that a throat is formed in each hole.
  • Figs. 8 and 9 differs from that shown in Figs. 3 and 6 only in the feature that the perforations I6 are in this instance of uniform diameter throughout their depth.
  • a corner construction 22 is illustrated which is of value if the tile is to be nailed or screwed to the supporting structure.
  • the corner is iilleted as shown with plaster suitably reenforcedas hereinafter described and the nails may be driven through this portion through the face I2.
  • a libre-plaster panel or tile in the i'oregoing description, is meant a panel or tile of plaster of Paris or like material containing ilbre such as sisal, hemp, open Hessian or other open woven fabric or like material as a reenforcement within the tile.
  • an open woven fabric is used as illustrated in Figs. 3, 5 and 6 by strands 20.
  • 'Ihis reenforcing is completely encased by the plaster. It is inserted during the pouring operationI the reenforcing being inserted after part of the plaster is poured. It usually is desirable to reenforce the flanges of the tile by means of strips or ribbons of wood 2I as shown in Figs. 4, 5 and 6.
  • the fabric ends are advantageously wrapped around the reenforcing strip as shown in Fig. 6.
  • a tile so reenforced is capable of being handled in a normal manner during shipment and installation without breakage.
  • a plaster facing tile or panel for the walls or ceiling of an enclosure having a plurality of apertures extending therethrough from the exposed'surface thereof, said tile having a plurality of shallow recesses in said exposed surface coinciding with said apertures, the walls oi said recesses divering outwardly at a substantial angle to the walls of said apertures to form :daring enlargements of said apertures at said exposed surface.
  • a cast pan-like plaster tile or panel for the reception of sound-absorbing materials comprising a facing-wall of substantial thickness and rearwardly extending flanges at the edges thereof, said facing-wall having a plurality of apertures extending therethrough and having a plurality of shallow recesses in the exposed surface thereof, said recesses coinciding with said apertures, the walls of said recesses diverging outwardly at a substantial angle to the walls of said apertures to form iiaring enlargements of said apertures at said exposed surface.

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  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Finishing Walls (AREA)
  • Building Environments (AREA)
US273649A 1938-06-16 1939-05-15 Facing sheet for sound absorbing material Expired - Lifetime US2280631A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU530029X 1938-06-16

Publications (1)

Publication Number Publication Date
US2280631A true US2280631A (en) 1942-04-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
US273649A Expired - Lifetime US2280631A (en) 1938-06-16 1939-05-15 Facing sheet for sound absorbing material

Country Status (3)

Country Link
US (1) US2280631A (fr)
FR (1) FR858754A (fr)
GB (1) GB530029A (fr)

Cited By (67)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2755882A (en) * 1952-04-22 1956-07-24 Maccaferri Mario Acoustic tiles
US2796946A (en) * 1954-07-15 1957-06-25 Ind Res Lab Inc Sound absorbing and correcting material and method of making same
US2923372A (en) * 1952-04-22 1960-02-02 Maccaferri Mario Acoustic tile
US2996138A (en) * 1959-07-10 1961-08-15 Robert A D Schwartz Perforated panel construction
US3819007A (en) * 1973-04-27 1974-06-25 Lockheed Aircraft Corp Controllable laminar sound absorptive structure
US3887031A (en) * 1973-06-11 1975-06-03 Lockheed Aircraft Corp Dual-range sound absorber
US4122915A (en) * 1975-06-12 1978-10-31 Kazunori Taguchi Sound absorbing and diffusing unit, an acoustic screen and/or a partition
US4207964A (en) * 1975-06-12 1980-06-17 Kazunori Taguchi Sound absorbing and diffusing unit, an acoustic screen and a decorative sound absorbing panel
USD255744S (en) 1978-01-09 1980-07-08 Dekko Chester E Mat section
USD278468S (en) 1982-01-04 1985-04-16 Trotman Deceased Helen H Plastic sheet material or the like
USD281752S (en) 1983-03-14 1985-12-17 Teknor Apex Company Floor mat
WO1993000262A1 (fr) * 1991-06-27 1993-01-07 Harco Steel, Inc. Panneau mural absorbant le son pour utilisation le long des autoroutes
ES2046931A2 (es) * 1991-07-01 1994-02-01 Arroyo Ordonez Fernando Panel fonoabsorbente de conglomerado de cemento y procedimiento para la fabricacion del mismo.
US5362931A (en) * 1991-03-20 1994-11-08 Arthur Fries Panel shaped element, specifically for sound absorbing structures and a sound absorbing installation
DE9406574U1 (de) * 1994-04-20 1995-01-26 Deutsche Pittsburgh Corning GmbH, 68219 Mannheim Bauelement zur Schalldämpfung
USD378054S (en) * 1995-12-12 1997-02-18 Minnesota Mining And Manufacturing Company Protective bumper
USD382353S (en) * 1995-12-12 1997-08-12 Minnesota Mining And Manufacturing Company Sheet member with a plurality of protective bumpers
USD382354S (en) * 1995-12-12 1997-08-12 Minnesota Mining And Manufacturing Company Sheet member with a plurality of protective bumpers
USD382352S (en) * 1995-12-12 1997-08-12 Minnesota Mining And Manufacturing Company Sheet member with a plurality of protective bumpers
USD383311S (en) * 1995-12-12 1997-09-09 Minnesota Mining And Manufacturing Company Sheet member with a plurality of protective bumpers
US5771654A (en) * 1994-11-14 1998-06-30 Modern Technologies Corp. Method of construction using molded polymer blocks
USD407303S (en) 1996-01-19 1999-03-30 Minnesota Mining And Manufacturing Company Hex-shaped protective bumpers
USD416476S (en) 1996-04-10 1999-11-16 3M Innovative Properties Company Sheet comprising a plurality of hex-shaped protective bumpers
USD418745S (en) * 1998-08-20 2000-01-11 3M Innovative Properties Company Protective bumper and sheet member with a plurality of protective bumpers
USD419862S (en) 1998-08-20 2000-02-01 3M Innovative Properties Company Protective bumper and sheet member with a plurality of protective bumpers
WO2003018274A1 (fr) 2001-08-31 2003-03-06 Rem Koolhaas Panneau de conception architecturale
US6591560B2 (en) * 2001-03-09 2003-07-15 Milliken & Company Electrostatic dissipating flooring article
US20070193175A1 (en) * 2006-02-21 2007-08-23 Ta-Chung Hao Structure of decoration acoustic board
US20070220824A1 (en) * 2004-04-28 2007-09-27 Tomoya Hasegawa Board Building Material, Board Building Material Producing Method, Board Building Material Installation Method
US20080289901A1 (en) * 2007-03-27 2008-11-27 Coury Charles C Acoustic panel
US20090038883A1 (en) * 2005-06-14 2009-02-12 Kim Young-Ok Sound-absorbing panel
DE102007040034A1 (de) * 2007-08-24 2009-02-26 Vogl, Erich R. Gipskartonlochplatte zur Schallabsorption
US20100180916A1 (en) * 2009-01-22 2010-07-22 Electrolux Home Products, Inc. Acoustic panel
WO2010137934A1 (fr) * 2009-05-25 2010-12-02 Garcia Miramontes Fortino Module thermique, anti-acoustique et conducteur de services domestiques en général
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
US20110234073A1 (en) * 2010-03-26 2011-09-29 Mabe, S.A. De C.V. Cabinet Pressing
US20130270035A1 (en) * 2010-12-21 2013-10-17 Yoshiharu Kitamura Soundproofing plate which does not obstruct airflow
US8713870B1 (en) * 2011-10-17 2014-05-06 Peter D. Poulsen Thermal management for a flight deck or other aviation surface
US8714304B2 (en) * 2012-09-21 2014-05-06 Yoshiharu Kitamura Soundproofing plate and soundproofing device permitting air flow
US8920850B2 (en) 2010-06-02 2014-12-30 Eco Product Group LLC Antimicrobial colloidal silver products and method of making same
USD745475S1 (en) * 2014-01-28 2015-12-15 Formosa Epitaxy Incorporation Light emitting diode chip
USD745474S1 (en) * 2014-01-28 2015-12-15 Formosa Epitaxy Incorporation Light emitting diode chip
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USD745473S1 (en) * 2014-01-28 2015-12-15 Formosa Epitaxy Incorporation Light emitting diode chip
USD754619S1 (en) * 2014-01-28 2016-04-26 Formosa Epitaxy Incorporation Light emitting diode chip
USD755135S1 (en) * 2014-01-28 2016-05-03 Formosa Epitaxy Incorporation Light emitting diode chip
USD757663S1 (en) * 2014-01-28 2016-05-31 Formosa Epitaxy Incorporation Light emitting diode chip
USD760178S1 (en) * 2014-01-28 2016-06-28 Formosa Epitaxy Incorporation Light emitting diode chip
USD774665S1 (en) * 2015-07-03 2016-12-20 Genstone Enterprises, Llc Back panel of a faux FAADE
USD784564S1 (en) * 2015-07-17 2017-04-18 Arktura Llc Architectural panel
USD784563S1 (en) * 2015-07-17 2017-04-18 Arktura Llc Architectural panel
US9624674B2 (en) * 2014-06-16 2017-04-18 Phillip Lee Installable graffiti and tagging inhibiting panels
USD794222S1 (en) * 2015-07-17 2017-08-08 Arktura Llc Architectural panel
US20180030896A1 (en) * 2015-02-18 2018-02-01 Mra Systems, Inc. Acoustic liners and method of shaping an inlet of an acoustic liner
USD810324S1 (en) * 2015-10-07 2018-02-13 Groupe Isolofoam Inc. Insulation panel
USD830584S1 (en) * 2015-11-04 2018-10-09 Joe Comitale Flooring membrane
CN109025126A (zh) * 2018-08-02 2018-12-18 四川杰邦科技有限公司 一种增亮降噪复合瓷砖及其制备方法
US20200002938A1 (en) * 2018-06-28 2020-01-02 Usg Interiors, Llc Monolithic acoustical system
USD894608S1 (en) * 2018-06-05 2020-09-01 FTI Group (Holding) Company Limited Panel for a suitcase
USD948485S1 (en) * 2021-05-19 2022-04-12 Shenzhen Xunweijia Technology Development Co., Ltd. Shock mount for microphone
US20230203805A1 (en) * 2021-12-27 2023-06-29 Calum W. Smeaton Apparatus with Interchangeable Panels for Varying Acoustic and Esthetic Treatments or Effects
AT526400A1 (de) * 2022-07-29 2024-02-15 Admonter Holzindustrie Ag Bauplatte
USD1083441S1 (en) * 2023-08-16 2025-07-15 Unclutr, LLC Organizational mat
USD1099577S1 (en) * 2023-03-28 2025-10-28 Beijing Youyi Union Building Materials Co., Ltd. Assembled non-slip floor mat
US12459702B2 (en) 2023-08-16 2025-11-04 Unclutr, LLC Organizational kit and method of use
US12473131B2 (en) 2023-08-16 2025-11-18 Unclutr, LLC Method and apparatus for storing materials

Families Citing this family (8)

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US2378618A (en) * 1941-12-19 1945-06-19 Celotex Corp Apparatus for perforating material
US2556884A (en) * 1947-01-14 1951-06-12 Muller Barringer Sound-absorbing surface covering material
IT1048504B (it) * 1974-06-27 1980-12-20 Tanzilli Umberto Elemento a.z in plastica per composizione bancali,pedane,pavimentazioni e sottopavimenti ad isolamento termico,acustico ed elettrico
DE3565568D1 (en) * 1984-02-29 1988-11-17 Fokker Aircraft Sound attenuating structure
FR2611776A1 (fr) * 1987-02-24 1988-09-09 Brunel Christian Procede et panneau d'absorption acoustique
CH678201A5 (fr) * 1989-03-17 1991-08-15 Lignoform Formsperrholz Ag
BE1013919A5 (nl) * 2001-01-16 2002-12-03 Deceuninck N V Geluidsabsorberend wandelement.
US10661473B2 (en) 2016-03-18 2020-05-26 Centroplexus Innovations Inc. Integral composite shuttering panel and monolithic wall building system

Cited By (77)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2755882A (en) * 1952-04-22 1956-07-24 Maccaferri Mario Acoustic tiles
US2923372A (en) * 1952-04-22 1960-02-02 Maccaferri Mario Acoustic tile
US2796946A (en) * 1954-07-15 1957-06-25 Ind Res Lab Inc Sound absorbing and correcting material and method of making same
US2996138A (en) * 1959-07-10 1961-08-15 Robert A D Schwartz Perforated panel construction
US3819007A (en) * 1973-04-27 1974-06-25 Lockheed Aircraft Corp Controllable laminar sound absorptive structure
US3887031A (en) * 1973-06-11 1975-06-03 Lockheed Aircraft Corp Dual-range sound absorber
US4122915A (en) * 1975-06-12 1978-10-31 Kazunori Taguchi Sound absorbing and diffusing unit, an acoustic screen and/or a partition
US4207964A (en) * 1975-06-12 1980-06-17 Kazunori Taguchi Sound absorbing and diffusing unit, an acoustic screen and a decorative sound absorbing panel
USD255744S (en) 1978-01-09 1980-07-08 Dekko Chester E Mat section
USD278468S (en) 1982-01-04 1985-04-16 Trotman Deceased Helen H Plastic sheet material or the like
USD281752S (en) 1983-03-14 1985-12-17 Teknor Apex Company Floor mat
US5362931A (en) * 1991-03-20 1994-11-08 Arthur Fries Panel shaped element, specifically for sound absorbing structures and a sound absorbing installation
WO1993000262A1 (fr) * 1991-06-27 1993-01-07 Harco Steel, Inc. Panneau mural absorbant le son pour utilisation le long des autoroutes
ES2046931A2 (es) * 1991-07-01 1994-02-01 Arroyo Ordonez Fernando Panel fonoabsorbente de conglomerado de cemento y procedimiento para la fabricacion del mismo.
DE9406574U1 (de) * 1994-04-20 1995-01-26 Deutsche Pittsburgh Corning GmbH, 68219 Mannheim Bauelement zur Schalldämpfung
US5771654A (en) * 1994-11-14 1998-06-30 Modern Technologies Corp. Method of construction using molded polymer blocks
USD382352S (en) * 1995-12-12 1997-08-12 Minnesota Mining And Manufacturing Company Sheet member with a plurality of protective bumpers
USD382354S (en) * 1995-12-12 1997-08-12 Minnesota Mining And Manufacturing Company Sheet member with a plurality of protective bumpers
USD378054S (en) * 1995-12-12 1997-02-18 Minnesota Mining And Manufacturing Company Protective bumper
USD383311S (en) * 1995-12-12 1997-09-09 Minnesota Mining And Manufacturing Company Sheet member with a plurality of protective bumpers
USD382353S (en) * 1995-12-12 1997-08-12 Minnesota Mining And Manufacturing Company Sheet member with a plurality of protective bumpers
USD407303S (en) 1996-01-19 1999-03-30 Minnesota Mining And Manufacturing Company Hex-shaped protective bumpers
USD416476S (en) 1996-04-10 1999-11-16 3M Innovative Properties Company Sheet comprising a plurality of hex-shaped protective bumpers
USD418745S (en) * 1998-08-20 2000-01-11 3M Innovative Properties Company Protective bumper and sheet member with a plurality of protective bumpers
USD419862S (en) 1998-08-20 2000-02-01 3M Innovative Properties Company Protective bumper and sheet member with a plurality of protective bumpers
US6591560B2 (en) * 2001-03-09 2003-07-15 Milliken & Company Electrostatic dissipating flooring article
WO2003018274A1 (fr) 2001-08-31 2003-03-06 Rem Koolhaas Panneau de conception architecturale
US20030072934A1 (en) * 2001-08-31 2003-04-17 Rem Koolhaas Panel for architectural design
US7661511B2 (en) * 2004-04-28 2010-02-16 Yoshino Gypsum Co., Ltd. Board building material, board building material producing method, board building material installation method
US20070220824A1 (en) * 2004-04-28 2007-09-27 Tomoya Hasegawa Board Building Material, Board Building Material Producing Method, Board Building Material Installation Method
US20090038883A1 (en) * 2005-06-14 2009-02-12 Kim Young-Ok Sound-absorbing panel
US20070193175A1 (en) * 2006-02-21 2007-08-23 Ta-Chung Hao Structure of decoration acoustic board
US7721847B2 (en) 2007-03-27 2010-05-25 9 Wood, Inc. Acoustic panel
US20080289901A1 (en) * 2007-03-27 2008-11-27 Coury Charles C Acoustic panel
DE102007040034B4 (de) * 2007-08-24 2010-02-11 Vogl, Erich R. Gipskartonlochplatte zur Schallabsorption
DE102007040034A1 (de) * 2007-08-24 2009-02-26 Vogl, Erich R. Gipskartonlochplatte zur Schallabsorption
US20100180916A1 (en) * 2009-01-22 2010-07-22 Electrolux Home Products, Inc. Acoustic panel
US8015848B2 (en) * 2009-01-22 2011-09-13 Electrolux Home Products, Inc. Acoustic panel
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FR858754A (fr) 1940-12-04
GB530029A (en) 1940-12-03

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