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US3771213A - Method of forming an embossed foil-covered ceiling panel - Google Patents

Method of forming an embossed foil-covered ceiling panel Download PDF

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Publication number
US3771213A
US3771213A US00886533A US3771213DA US3771213A US 3771213 A US3771213 A US 3771213A US 00886533 A US00886533 A US 00886533A US 3771213D A US3771213D A US 3771213DA US 3771213 A US3771213 A US 3771213A
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United States
Prior art keywords
foil
ceiling panel
panel
face
metal
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
US00886533A
Inventor
J Peraro
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Armstrong World Industries Inc
Original Assignee
Armstrong Cork Co
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Filing date
Publication date
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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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/14—Layered products comprising a layer of metal next to a fibrous or filamentary layer
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/04—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like
    • E04B9/045—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like being laminated
    • 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
    • B32B3/30—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 a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/06—Embossing
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/04—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like
    • E04B9/0478—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like of the tray type
    • E04B9/0485—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation comprising slabs, panels, sheets or the like of the tray type containing a filling element
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
    • E04C2/292—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and sheet metal
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/06—Vegetal fibres
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • 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
    • B32B2607/00—Walls, panels
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S29/00—Metal working
    • Y10S29/042—Tension applied during working
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1039—Surface deformation only of sandwich or lamina [e.g., embossed panels]
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49906—Metal deforming with nonmetallic bonding

Definitions

  • the invention relates generally to an improved acoustical panel and, more particularly, to an acoustical panel covered with a protective covering.
  • U. S. Pat. No. 2,802,764 discloses a ceiling panel which has been covered with a plastic film. The film is drawn tight across the face of the panel by being exposed to heat which causes the plastic to shrink and draw itself tight across the face of the panel.
  • U. S. Pat. No. 1,837,451 and U. S. Pat. No. 3,074,505 both disclose techniques wherein a metallic sheet is placed over a ceiling panel. The metallic sheet is fastened to the panel by being punched and having the edges of the punched openings in the metal grasp the ceiling panel to hold the metal covering to the face of the ceiling panel. It is also possible with a rigid enough piece of material to merely place the metal on the face of the ceiling panel and have the edges of the metal crimped into the edges of the panel to hold the metal relative to the panel.
  • the invention herein is directed to a technique that will permit the manufacture of a metal-faced ceiling panel.
  • the technique permits the use of an extremely thim metal, or foil, and thus provides a saving in material cost.
  • the foil is shrunk to the ceiling panel by mechanical embossing which provides the technique by which the foil is placed tightly adjacent the ceiling panel and yields a decorative aesthetic effect.
  • the invention is directed to a ceiling panel formed of a basic conventional ceiling board to which there has been adhered a metal foil.
  • the foil is secured, normally adhesively, to the edge of the panel and extends across the front face of the panel.
  • the foil is drawn tight relative to the surface of the panel by being lightly mechanically embossed. This shrinks the foil and draws it tight and thereby provides a tight rigid metal surface extending across the front face of the ceiling panel.
  • the foil is unpunched and the acoustical properties are obtained when the foil transmits sound to the prepunched board by vibration.
  • FIG. 1 is a perspective view of a metal foil ceiling panel
  • FIG. 2 is a cross-sectional view, enlarged, showing the ceiling panel and embossed metal covering.
  • the metal foil ceiling panel 2 is composed of a vegetable fiber or asbestos fiber ceiling panel 4 which is conventional in the art. Normally this type of panel would be provided with a white paint coating and used with the paint coating facing downward.
  • the invention involves the placing of a metal foil 6 over the front face of the ceiling panel.
  • a good material to use would be an aluminum foil of 0.0025inch thickness.
  • the metal foil extends across the front face and is adhered at the edges 8 by glue or other appropriate adhering means. Consequently, the metal foil is adhered around its perimeter to the perimeter of the ceiling panel, and the foil extends across the front face of the ceiling panel.
  • the foil 6 extending across a portion of the ceiling panel 4.
  • the foil extends around the corner of the ceiling panel and is fastened to edge 8 by an adhesive 10.
  • the foil 6, which extends across the face 12 of the panel 4 is not adhered to the face 12 by any mechanical means.
  • a shallow embossed area 14 is shown. It can be readily seen that when the foil is embossed, a forming of the impressions in the foil will tend to absorb any excess material that may exist between two opposite edges of the ceiling panel. Furthermore, these impressions place the foil under a tension which extends longitudinally through the foil. This is in effect a shrinking of the foil over the surface of the board.
  • the ceiling panel may be provided with punched holes, such as hole 16, for acoustical purposes. Sound waves striking against the foil will cause the foil to vibrate and the sound will be transmitted to the punched board by the vibration and absorbed within the holes within the board.
  • the ceiling panel will be relatively easy to clean and maintain plus it has a metallic coating which will not be stained or affected by grease or dirt.
  • the panel is capable of having some acoustical properties, and the front surface of the panel is relatively durable as compared to conventional fiber panels.
  • the method of manufacturing a metal foil ceiling panel comprising the steps of placing a metal foil across the face ofa ceiling panel, adhering the metal foil to the ceiling panel only at the peripheral edge of the ceiling panel, embossing the portion of the metal foil which extends across the face of the ceiling panel to mechanically shrink the foil over the surface of the ceiling panel.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Laminated Bodies (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

Abstract

A conventional ceiling panel covered with a metal foil which is adhered to the edges of the panel. The foil is drawn tight across the face of the panel by lightly embossing the foil face to mechanically shrink the foil over the face of the panel.

Description

United States Patent [191 Peraro METHOD OF FORMING AN EMBOSSED FOIL-COVERED CEILING PANEL James S. Peraro, Lancaster, Pa.
Inventor:
Armstrong Cork Company, Lancaster, Pa.
Dec. 19, 1969 Assignee:
Filed:
Appl. No.:
U.S. Cl 29/480, 29/DIG. 42, 52/144, 52/599, 52/746, 156/219 Int. Cl. B23k 31/02 Field of Search 52/144, 599, 746; 156/71, 219-220, 216, 295; 161/119-120,
147; 29/480, DIG. 42
[56] References Cited UNITED STATES PATENTS 4/1928 Robinson 161/119 2/1936 Miller 52/144 6/1936 Pond 52/144 [111 3,771,213 [451 Nov. 13, 1973 Caprio et al. 156/219 Primary ExaminerFrank L. Abbott Assistant ExaminerLeslie A. Braun Attorney-Clifford B. Price [57] ABSTRACT A conventional ceiling panel covered with a metal foil which is adhered to the edges of the panel. The foil is drawn tight across the face of the panel by lightly embossing the foil face to mechanically shrink the foil over the face of the panel.
1 Claim, 2 Drawing Figures PATENTEDHUVIIB I975 3,771,213
INVENTOR JAMES S. PERARO ATTORNEY METHOD OF FORMING AN EMBOSSED FOIL-COVERED CEILING PANEL BACKGROUND OF THE INVENTION 1. Fieldof the Invention The invention relates generally to an improved acoustical panel and, more particularly, to an acoustical panel covered with a protective covering.
2. Description of the Prior Art U. S. Pat. No. 2,802,764 discloses a ceiling panel which has been covered with a plastic film. The film is drawn tight across the face of the panel by being exposed to heat which causes the plastic to shrink and draw itself tight across the face of the panel. U. S. Pat. No. 1,837,451 and U. S. Pat. No. 3,074,505 both disclose techniques wherein a metallic sheet is placed over a ceiling panel. The metallic sheet is fastened to the panel by being punched and having the edges of the punched openings in the metal grasp the ceiling panel to hold the metal covering to the face of the ceiling panel. It is also possible with a rigid enough piece of material to merely place the metal on the face of the ceiling panel and have the edges of the metal crimped into the edges of the panel to hold the metal relative to the panel.
The invention herein is directed to a technique that will permit the manufacture of a metal-faced ceiling panel. The technique permits the use of an extremely thim metal, or foil, and thus provides a saving in material cost. The foil is shrunk to the ceiling panel by mechanical embossing which provides the technique by which the foil is placed tightly adjacent the ceiling panel and yields a decorative aesthetic effect.
SUMMARY OF THE INVENTION The invention is directed to a ceiling panel formed of a basic conventional ceiling board to which there has been adhered a metal foil. The foil is secured, normally adhesively, to the edge of the panel and extends across the front face of the panel. The foil is drawn tight relative to the surface of the panel by being lightly mechanically embossed. This shrinks the foil and draws it tight and thereby provides a tight rigid metal surface extending across the front face of the ceiling panel. The foil is unpunched and the acoustical properties are obtained when the foil transmits sound to the prepunched board by vibration.
BRIEF DESCRIPTION OF THE DRAWING FIG. 1 is a perspective view of a metal foil ceiling panel, and
FIG. 2 is a cross-sectional view, enlarged, showing the ceiling panel and embossed metal covering.
DESCRIPTION OF THE PREFERRED EMBODIMENT Referring to FIG. 1, the metal foil ceiling panel 2 is composed of a vegetable fiber or asbestos fiber ceiling panel 4 which is conventional in the art. Normally this type of panel would be provided with a white paint coating and used with the paint coating facing downward. The invention involves the placing of a metal foil 6 over the front face of the ceiling panel. A good material to use would be an aluminum foil of 0.0025inch thickness. The metal foil extends across the front face and is adhered at the edges 8 by glue or other appropriate adhering means. Consequently, the metal foil is adhered around its perimeter to the perimeter of the ceiling panel, and the foil extends across the front face of the ceiling panel. There will be a slight tendency of the metal foil to sag relative to the center portion of the front face. Any tendency to sag would be eliminated by shrinking or drawing the metal foil tight across the face of the ceiling panel. This shrinking of the foil is accomplished by a low relief embossing roll providing a mechanical embossing to the metal foil on the front face of the ceiling panel. The mechanical embossing does not penetrate through the metal foil, but only distorts the foil to draw it tight between the edges which are fastened to the edge of the ceiling panel.
Referring to FIG. 2, there is shown the foil 6 extending across a portion of the ceiling panel 4. The foil extends around the corner of the ceiling panel and is fastened to edge 8 by an adhesive 10. The foil 6, which extends across the face 12 of the panel 4, is not adhered to the face 12 by any mechanical means. A shallow embossed area 14 is shown. It can be readily seen that when the foil is embossed, a forming of the impressions in the foil will tend to absorb any excess material that may exist between two opposite edges of the ceiling panel. Furthermore, these impressions place the foil under a tension which extends longitudinally through the foil. This is in effect a shrinking of the foil over the surface of the board. It may be more properly called a tensioning of the foil so that it tends to lay in a plane parallel and adjacent the face of the ceiling panel and not sag in a dish-shaped plane and hang away from the front face of the ceiling panel when it is mounted in position in a ceiling. The ceiling panel may be provided with punched holes, such as hole 16, for acoustical purposes. Sound waves striking against the foil will cause the foil to vibrate and the sound will be transmitted to the punched board by the vibration and absorbed within the holes within the board.
There is now provided a very decorative ceiling panel which will have an embossed effect. The ceiling panel will be relatively easy to clean and maintain plus it has a metallic coating which will not be stained or affected by grease or dirt. The panel is capable of having some acoustical properties, and the front surface of the panel is relatively durable as compared to conventional fiber panels.
What is claimed is:
1. The method of manufacturing a metal foil ceiling panel comprising the steps of placing a metal foil across the face ofa ceiling panel, adhering the metal foil to the ceiling panel only at the peripheral edge of the ceiling panel, embossing the portion of the metal foil which extends across the face of the ceiling panel to mechanically shrink the foil over the surface of the ceiling panel.

Claims (1)

1. The method of manufacturing a metal foil ceiling panel comprising the steps of placing a metal foil across the face of a ceiling panel, adhering the metal foil to the ceiling panel only at the peripheral edge of the ceiling panel, embossing the portion of the metal foil which extends across the face of the ceiling panel to mechanically shrink the foil over the surface of the ceiling panel.
US00886533A 1969-12-19 1969-12-19 Method of forming an embossed foil-covered ceiling panel Expired - Lifetime US3771213A (en)

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US88653369A 1969-12-19 1969-12-19

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4248647A (en) * 1979-08-07 1981-02-03 Armstrong Cork Company Method for producing acoustical ceiling tile faced with a smooth distortion free decorative thin plastic film
US4325177A (en) * 1979-01-19 1982-04-20 Depoorter Lieven L Modular art wall systems
US4498390A (en) * 1980-05-09 1985-02-12 Philip Morris Incorporated Method and apparatus for embossing foil
US4642951A (en) * 1984-12-04 1987-02-17 Fam Tile Restoration Services, Ltd. Suspended ceiling tile system
EP0368529A1 (en) * 1988-11-08 1990-05-16 Micropore International Limited Panels of thermal insulating material
US6299727B1 (en) * 1999-06-15 2001-10-09 Nitto Boseki Co., Ltd. Incombustible sound-absorbing electric radiation-absorbing ceiling panel
US20120021242A1 (en) * 2009-03-31 2012-01-26 Andrey Vilenovich Lyubomirskiy Wall facing panel
US20120028071A1 (en) * 2009-03-31 2012-02-02 Andrey Vilenovich Lyubomirskiy Wall facing panel

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD65652A (en) *
US1665222A (en) * 1923-07-19 1928-04-10 Anaconda Sales Co Roofing element and process of making same
US2031900A (en) * 1933-04-07 1936-02-25 Edward J Miller Acoustical wall surfacing
US2045099A (en) * 1932-07-23 1936-06-23 Johns Manville Cellular material and method of making same
US2205466A (en) * 1937-09-18 1940-06-25 Celluloid Corp Process for making decorative material
US2802764A (en) * 1952-10-08 1957-08-13 Owens Corning Fiberglass Corp Acoustical material
US2990027A (en) * 1957-07-11 1961-06-27 Celotex Corp Composite sound absorber
US3013626A (en) * 1957-06-18 1961-12-19 Armstrong Cork Co Acoustical material
US3380206A (en) * 1965-09-29 1968-04-30 Soundlock Corp Lay-in acoustical ceiling panel with flexible diaphragms
US3510388A (en) * 1965-11-01 1970-05-05 Consolidated Aluminum Corp Embossable sheet material

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD65652A (en) *
US1665222A (en) * 1923-07-19 1928-04-10 Anaconda Sales Co Roofing element and process of making same
US2045099A (en) * 1932-07-23 1936-06-23 Johns Manville Cellular material and method of making same
US2031900A (en) * 1933-04-07 1936-02-25 Edward J Miller Acoustical wall surfacing
US2205466A (en) * 1937-09-18 1940-06-25 Celluloid Corp Process for making decorative material
US2802764A (en) * 1952-10-08 1957-08-13 Owens Corning Fiberglass Corp Acoustical material
US3013626A (en) * 1957-06-18 1961-12-19 Armstrong Cork Co Acoustical material
US2990027A (en) * 1957-07-11 1961-06-27 Celotex Corp Composite sound absorber
US3380206A (en) * 1965-09-29 1968-04-30 Soundlock Corp Lay-in acoustical ceiling panel with flexible diaphragms
US3510388A (en) * 1965-11-01 1970-05-05 Consolidated Aluminum Corp Embossable sheet material

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4325177A (en) * 1979-01-19 1982-04-20 Depoorter Lieven L Modular art wall systems
US4248647A (en) * 1979-08-07 1981-02-03 Armstrong Cork Company Method for producing acoustical ceiling tile faced with a smooth distortion free decorative thin plastic film
US4498390A (en) * 1980-05-09 1985-02-12 Philip Morris Incorporated Method and apparatus for embossing foil
US4642951A (en) * 1984-12-04 1987-02-17 Fam Tile Restoration Services, Ltd. Suspended ceiling tile system
EP0368529A1 (en) * 1988-11-08 1990-05-16 Micropore International Limited Panels of thermal insulating material
US6299727B1 (en) * 1999-06-15 2001-10-09 Nitto Boseki Co., Ltd. Incombustible sound-absorbing electric radiation-absorbing ceiling panel
US20120021242A1 (en) * 2009-03-31 2012-01-26 Andrey Vilenovich Lyubomirskiy Wall facing panel
US20120028071A1 (en) * 2009-03-31 2012-02-02 Andrey Vilenovich Lyubomirskiy Wall facing panel

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