PL130193B1 - Acoustically insulating building unit - Google Patents
Acoustically insulating building unitInfo
- Publication number
- PL130193B1 PL130193B1 PL1979219667A PL21966779A PL130193B1 PL 130193 B1 PL130193 B1 PL 130193B1 PL 1979219667 A PL1979219667 A PL 1979219667A PL 21966779 A PL21966779 A PL 21966779A PL 130193 B1 PL130193 B1 PL 130193B1
- Authority
- PL
- Poland
- Prior art keywords
- plate
- element according
- air
- rigid
- layer
- Prior art date
Links
- 239000011148 porous material Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 238000010276 construction Methods 0.000 claims description 8
- 239000004033 plastic Substances 0.000 claims description 8
- 229920003023 plastic Polymers 0.000 claims description 8
- 230000002745 absorbent Effects 0.000 claims 1
- 239000002250 absorbent Substances 0.000 claims 1
- 239000002557 mineral fiber Substances 0.000 claims 1
- 238000009413 insulation Methods 0.000 description 9
- 239000002184 metal Substances 0.000 description 4
- 239000006260 foam Substances 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 239000002984 plastic foam Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000011111 cardboard Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000011490 mineral wool Substances 0.000 description 2
- 239000007767 bonding agent Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000011094 fiberboard Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 235000012907 honey Nutrition 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000012858 resilient material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
- B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
- E04F15/20—Separately-laid insulating layers; Other additional insulating measures; Floating floors for sound insulation
- E04F15/206—Layered panels for sound insulation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B19/00—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica
- B32B19/04—Layered products comprising a layer of natural mineral fibres or particles, e.g. asbestos, mica next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
- B32B3/18—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by an internal layer formed of separate pieces of material which are juxtaposed side-by-side
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/02—Cellular or porous
- B32B2305/026—Porous
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/10—Properties of the layers or laminate having particular acoustical properties
- B32B2307/102—Insulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
- B32B2307/7242—Non-permeable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2419/00—Buildings or parts thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2607/00—Walls, panels
-
- 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
- E04B2001/742—Use of special materials; Materials having special structures or shape
- E04B2001/748—Honeycomb materials
-
- 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
- E04B2001/8461—Solid slabs or blocks layered
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24058—Structurally defined web or sheet [e.g., overall dimension, etc.] including grain, strips, or filamentary elements in respective layers or components in angular relation
- Y10T428/24124—Fibers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24149—Honeycomb-like
- Y10T428/24165—Hexagonally shaped cavities
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Acoustics & Sound (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Electromagnetism (AREA)
- Building Environments (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7811891A SE420750B (sv) | 1978-11-17 | 1978-11-17 | Ljudisolerande byggnadselement med stor styvhet |
Publications (2)
Publication Number | Publication Date |
---|---|
PL219667A1 PL219667A1 (US06589383-20030708-C00041.png) | 1980-07-14 |
PL130193B1 true PL130193B1 (en) | 1984-07-31 |
Family
ID=20336392
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PL1979219667A PL130193B1 (en) | 1978-11-17 | 1979-11-16 | Acoustically insulating building unit |
Country Status (12)
Families Citing this family (45)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4301890A (en) * | 1979-12-06 | 1981-11-24 | Lord Corporation | Sound-absorbing panel |
DE8213227U1 (de) * | 1982-05-07 | 1982-08-19 | Rheinhold & Mahla Gmbh, 6800 Mannheim | Schallmindernde waermedaemmung |
EP0104357B1 (de) * | 1982-09-25 | 1986-11-20 | Audi Ag | Schalldämmungsauskleidung |
US4487793A (en) * | 1982-12-27 | 1984-12-11 | Armstrong World Industries, Inc. | Vinyl covered sound absorbing structure |
DE3504208A1 (de) * | 1985-02-07 | 1986-08-07 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München | Schalldaempfer-box |
US4611444A (en) * | 1985-02-28 | 1986-09-16 | Simplex Ceiling Corp. | Sanitary acoustical ceiling |
US4899498A (en) * | 1988-10-03 | 1990-02-13 | Grieb Donald L | Foam cement highway sound barrier |
CH678306A5 (US06589383-20030708-C00041.png) * | 1989-12-29 | 1991-08-30 | Matec Holding | |
GB9323829D0 (en) * | 1993-11-19 | 1994-01-05 | Dow Deutschland Inc | Acoustic insulating panels or elements |
US6007890A (en) * | 1993-11-19 | 1999-12-28 | The Dow Chemical Company | Acoustic insulating panels or elements |
CH686423A5 (de) * | 1993-11-25 | 1996-03-29 | Alusuisse Lonza Services Ag | Formsteife Verbundplatte. |
NL9400173A (nl) * | 1994-02-04 | 1995-09-01 | Veldhoen Raalte B V | Geluidsscherm. |
DE19653850C2 (de) * | 1996-12-21 | 1999-01-28 | Daimler Benz Aerospace Airbus | Wandelement |
DE19804718C2 (de) | 1998-02-06 | 2001-09-13 | Eurocopter Deutschland | Schall absorbierende Sandwichwand |
EP0965701A1 (en) * | 1998-06-19 | 1999-12-22 | Dow Deutschland Inc. | Sound insulating panel |
DE19839973A1 (de) * | 1998-09-02 | 2000-03-23 | Fraunhofer Ges Forschung | Plattenförmiges Bauelement |
US6615559B2 (en) | 1998-12-11 | 2003-09-09 | Owens Corning Fiberglas Technology, Inc. | Resilient construction member, especially a unitary construction member |
US6755003B1 (en) * | 1998-12-11 | 2004-06-29 | Owens Corning Fiberglas Technology, Inc. | Resilient construction member |
US6789645B1 (en) | 1999-06-09 | 2004-09-14 | The Dow Chemical Company | Sound-insulating sandwich element |
ATE362024T1 (de) | 1999-06-09 | 2007-06-15 | Dow Deutschland Inc | Sandwich-schallisolierungselement |
DE10155867B4 (de) * | 2001-11-14 | 2006-11-02 | Daimlerchrysler Ag | Pralldämpfer |
DE20118909U1 (de) * | 2001-11-20 | 2003-03-27 | Saint-Gobain Isover G+H AG, 68526 Ladenburg | Trennwandelement für Raumteiler u.dgl. mit einer Füllung mit Wärmedämmstoff, insbesondere Mineralwolle |
DE10231791C1 (de) * | 2002-07-15 | 2003-12-18 | Airbus Gmbh | Mehrschichtplatte zur Verringerung der Schallabstrahlung |
FR2850410B1 (fr) * | 2003-01-24 | 2006-02-03 | Hutchinson | Panneau d'isolation acoustique |
JP4050632B2 (ja) * | 2003-02-24 | 2008-02-20 | 株式会社神戸製鋼所 | 吸音構造体 |
US7267196B2 (en) * | 2004-02-12 | 2007-09-11 | The Boeing Company | Method and apparatus for reducing acoustic noise |
US7419031B2 (en) * | 2005-11-04 | 2008-09-02 | The Boeing Company | Integrally damped composite aircraft floor panels |
US7837147B2 (en) | 2005-03-18 | 2010-11-23 | The Boeing Company | Systems and methods for reducing noise in aircraft fuselages and other structures |
DE102005045844B3 (de) * | 2005-09-26 | 2007-02-01 | Airbus Deutschland Gmbh | Schalldämmelement und Verfahren zur Herstellung eines Schalldämmelements |
US20070193175A1 (en) * | 2006-02-21 | 2007-08-23 | Ta-Chung Hao | Structure of decoration acoustic board |
US9511571B2 (en) * | 2007-01-23 | 2016-12-06 | The Boeing Company | Composite laminate having a damping interlayer and method of making the same |
KR100793074B1 (ko) * | 2007-09-06 | 2008-01-10 | 김부열 | 공기 정화 및 살균 기능을 갖는 건축물용 층간 소음 저감패널 |
DE102008063923A1 (de) * | 2008-12-19 | 2010-06-24 | Airbus Deutschland Gmbh | Mehrschichtplatte zur Schalldämmung |
US8425710B2 (en) * | 2009-03-13 | 2013-04-23 | The Boeing Company | Automated placement of vibration damping materials |
JP2012013912A (ja) * | 2010-06-30 | 2012-01-19 | Three M Innovative Properties Co | 吸音システム及びその作製方法 |
EP2626480B1 (en) * | 2010-10-07 | 2018-12-12 | LG Hausys, Ltd. | Gypsum panel having outstanding sound-absorbing properties and a production method therefor |
US8770340B2 (en) * | 2011-11-16 | 2014-07-08 | Huntair, Inc. | Sound-absorptive panel for an air handling system |
US8640427B2 (en) * | 2012-03-30 | 2014-02-04 | Door Components, Inc. | Sound insulating door |
US8573357B1 (en) | 2012-12-07 | 2013-11-05 | Eggers Industries, Inc. | Acoustical door |
US9493949B2 (en) * | 2014-03-20 | 2016-11-15 | Vanair Design | Panel and panel structure for ventilation and both reactive and dissipative sound dampening |
DE202015004064U1 (de) | 2015-06-10 | 2015-09-18 | Akustikbüro Krämer + Stegmaier GmbH | Vorrichtung zur Reduzierung von Schalldruckpegeln |
WO2018076984A1 (zh) * | 2016-10-31 | 2018-05-03 | 张跃 | 一种夹空心管的金属板及其用途 |
CA3006916A1 (en) * | 2017-06-03 | 2018-12-03 | National Gypsum Properties, Llc | Sound damping wallboard and method of constructing a sound damping wallboard |
CA2982731C (en) * | 2017-10-17 | 2018-07-17 | 9236-3135 Qc Inc. | Vibration absorption device and method for acoustic insulation |
EP3880945A1 (en) | 2018-11-15 | 2021-09-22 | Cummins Power Generation IP, Inc. | Genset enclosures with low acoustic noise |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE714399C (de) * | 1935-12-17 | 1941-11-28 | Dr Georg Hofbauer | Schall- und waermedaemmende Verbindung von im Abstand voneinander angeordneten Bauteilen |
BE482176A (US06589383-20030708-C00041.png) * | 1943-12-09 | |||
BE634145A (US06589383-20030708-C00041.png) * | 1962-07-06 | |||
GB1300409A (en) * | 1969-08-18 | 1972-12-20 | Secr Defence | Improvements in hollow wall structures |
DE2012522C3 (de) * | 1970-03-17 | 1974-03-07 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V., 8000 Muenchen | Dämmstreifen aus Hartschaumplatten zum Befestigen von Verkleidungsplatten an Trennwänden |
FR2088967A6 (en) * | 1970-04-30 | 1972-01-07 | Alsace Laminoirs | Composite sound insulation - designed to specific resonance and stiffness requirements using synthetic wool fibreboard and lead |
DE2408028B2 (de) * | 1974-02-20 | 1978-05-11 | Fa. Carl Freudenberg, 6940 Weinheim | Schallschluckplatte |
US4084366A (en) * | 1975-11-14 | 1978-04-18 | Haworth Mfg., Inc. | Sound absorbing panel |
SE402142B (sv) * | 1976-06-03 | 1978-06-19 | Becker Wilhelm Ab | Laminerad ljudabsorbent |
US4155211A (en) * | 1977-12-23 | 1979-05-22 | Haworth Mfg., Inc. | Sound absorbing panel |
-
1978
- 1978-11-17 SE SE7811891A patent/SE420750B/sv not_active IP Right Cessation
-
1979
- 1979-11-07 FI FI793493A patent/FI64968C/fi not_active IP Right Cessation
- 1979-11-07 NL NL7908145A patent/NL7908145A/nl not_active Application Discontinuation
- 1979-11-09 CA CA000339576A patent/CA1137417A/en not_active Expired
- 1979-11-13 DK DK480079A patent/DK480079A/da not_active Application Discontinuation
- 1979-11-16 FR FR7928367A patent/FR2441692A1/fr active Granted
- 1979-11-16 NO NO793716A patent/NO793716L/no unknown
- 1979-11-16 JP JP54148757A patent/JPS5947785B2/ja not_active Expired
- 1979-11-16 GB GB7939794A patent/GB2035897B/en not_active Expired
- 1979-11-16 PL PL1979219667A patent/PL130193B1/pl unknown
- 1979-11-16 DE DE2946392A patent/DE2946392C2/de not_active Expired
- 1979-11-19 US US06/095,387 patent/US4317503A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
NL7908145A (nl) | 1980-05-20 |
DE2946392C2 (de) | 1987-03-05 |
FI793493A (fi) | 1980-05-18 |
SE420750B (sv) | 1981-10-26 |
GB2035897A (en) | 1980-06-25 |
JPS5572547A (en) | 1980-05-31 |
US4317503A (en) | 1982-03-02 |
FI64968C (fi) | 1984-02-10 |
SE7811891L (sv) | 1980-05-18 |
NO793716L (no) | 1980-05-20 |
FR2441692A1 (fr) | 1980-06-13 |
DE2946392A1 (de) | 1980-06-04 |
GB2035897B (en) | 1982-09-29 |
DK480079A (da) | 1980-05-18 |
CA1137417A (en) | 1982-12-14 |
PL219667A1 (US06589383-20030708-C00041.png) | 1980-07-14 |
JPS5947785B2 (ja) | 1984-11-21 |
FI64968B (fi) | 1983-10-31 |
FR2441692B1 (US06589383-20030708-C00041.png) | 1984-10-19 |
Similar Documents
Publication | Publication Date | Title |
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