US3070196A - Sheet metal panel and method of making same - Google Patents

Sheet metal panel and method of making same Download PDF

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US3070196A
US3070196A US22214A US2221460A US3070196A US 3070196 A US3070196 A US 3070196A US 22214 A US22214 A US 22214A US 2221460 A US2221460 A US 2221460A US 3070196 A US3070196 A US 3070196A
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sheet
metal
panel
box
construction
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Jr Harold E Switzgable
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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/32—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing
    • E06B3/48—Wings connected at their edges, e.g. foldable wings
    • E06B3/485—Sectional doors
    • 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
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/70—Door leaves
    • E06B3/82—Flush doors, i.e. with completely flat surface
    • E06B3/827—Flush doors, i.e. with completely flat surface of metal without an internal frame, e.g. with exterior panels substantially of metal
    • 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.]
    • Y10T428/2419—Fold at edge
    • Y10T428/24215—Acute or reverse fold of exterior component
    • 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
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249987—With nonvoid component of specified composition
    • Y10T428/24999—Inorganic
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31511—Of epoxy ether
    • Y10T428/31515—As intermediate layer
    • Y10T428/31522—Next to metal

Definitions

  • a construction, and a method of construction wherein two sheets of metal are formed to provide a shallow box-like structure.
  • One of the sheets is formed to provide the top and two opposite sides of the box and to provide flanges extending from the sides towards each other in a plane parallel with the top.
  • the other sheet of metal is similarly termed but is dimensioned to slide into the first one and to thereby con stitute the bottom and two ends of the box-like structure.
  • the interior of the box-like structure may be filled with a thermal insulation material.
  • a foaming plastic liquid is applied to an inner surface of one of the formed metal sheets and is allowed to foam and solidify in place inside the assembled formed sheets toform a bonded rigid panel structure.
  • FIGURE 1 is a perspective view, with portions cut away, of a sheet metal panel constructed in accordance with the teachings of this invention
  • FIGURE 2 is a longitudinal sectional view of the panel shown in FIGURE 1, and taken on the line 2-2 of FIGURE 3;
  • FIGURE 3 is a transverse sectional view of the panel of FIGURE 1 and taken on the line 33 of FEGURE 2;
  • FIGURE 4 is a perspective view of two sheet metal elements which may be substituted for one of the formed sheet metal elements in the embodiment of FIGURES 1 through 3 for the purpose of providing greater rigidity, and providing localized strength for the attachment of hardware or the like.
  • FIG- URES 1 through 3 of the drawings show a sheet metal panel that is particularly useful in the construction of rolling overhead garage doors or the like.
  • the boxlike sheet metal panel is constructed of a first sheet of metal which is formed to provide the top and two sides of the box, and a second sheet of metal 11 which is formed to provide the bottom and two ends of the box.
  • the sheet of metal 10 has a major flat portion 12 con stituting the top of the box, and has two opposite edges formed into a lap-joint-shaped side 14 and a complimentary lap-joint-shaped side 16.
  • the sides 14 and 16 are shown as being lap joint shaped, the sides may be straight, or may be shaped to provide any other kind of joint such as a tongue-and-groove joint or a scarf joint.
  • the metal sheet 10 is also additionally formed to provide flanges 18 and 20 extending from the bottoms of the sides 14 and 16, respectively, toward each other and parallel the surface of the top portion 12. It is thus far apparent that the sheet of metal 10 is formed, as by means of a brake, to provide a unitary element constituting the top 12, and the sides 14 and 16 of a box-like structure, and also to form the flanges 18 and 29.
  • the second sheet of metal 11 used in the construction of the box-like structure is similarly formed to provide a major intermediate portion or bottom 22, and ends 24 and 26 of the box-like structure.
  • the metal sheet 11 is additionally formed to provide flanges 2-8 and 30 extending from the upper edges of the ends 24 and 26, respectively, toward each other and parallel with the bottom portion 22 of the sheet.
  • the metal sheet 11 is formed to provide the bottom 22, the ends 24 and 26, and the flanges 28 and 3%), the various portions of the metal sheet 11 being dimensioned so that the formed sheet 11 can be assembled into the position shown in the drawing by sliding the formed metal sheet 11 into and inside the formed metal sheet 10.
  • a batt of insulating material is dimensioned and positioned in the formed metal sheet 11 prior to sliding the formed metal sheet 11 inside the formed metal sheet It).
  • the oatt of insulating material may comprise any of the pulp or textile or noncombustible fibers, or may comprise a block of solid foamed plastic.
  • the batt of insulating material may be constituted by a honeycomb core having dimensions to fill the interior space.
  • the formed metal sheets 11? and 11 may be fastened in the assembled position shown in the drawing by a suitable means, such as by applying an adhesive to portions of the flanges 18, 2t), 28 and 30, or by employing sheet metal screws or blind rivets connecting the flanges to the contiguous surfaces of the other formed metal sheet, or by employing through bolts such as in connection with the attachment of hardware to the panel.
  • a suitable means such as by applying an adhesive to portions of the flanges 18, 2t), 28 and 30, or by employing sheet metal screws or blind rivets connecting the flanges to the contiguous surfaces of the other formed metal sheet, or by employing through bolts such as in connection with the attachment of hardware to the panel.
  • a foaming plastic liquid is applied to the major surface of one of the formed metal sheets it) or 11. This is preferably done before the bottom formed sheet 11 is slid into the top formed sheet 10, or simultaneously with the step of sliding the formed sheet 11 into the top sheet 10.
  • the foaming plastic liquid is applied by a pumping or spraying apparatus including a mixing valve which mixes the two ingredients necessary to initiate the foaming action.
  • the foaming plastic should be one, such as polyurethane or epoxy, which will adhere to the formed metal sheets 10 and 11.
  • the sheets After the foaming plastic liquid is applied to an interior surface of one of the formed metal sheets, the sheets are maintained in the finally-desired assembled relationship while the plastic liquid foams and fills the interior space. After this occurs, the foam solidifies and bonds to the formed metal sheets and 11 so that they are permanently fixed together as a panel. No other fastening means are required.
  • the formed sheets 10 and 11 are so shaped that they can be disassembled only by a sliding motion. This motion is completely prevented by the bonded plastic foam in the interior of the panel. Therefore, the flanges 18, 20, and 28, 30 need be made to extend from the respective sides and ends a distance just suflicient to provide the desired rigidity and the necessary bearing surfaces for locating the two formed sheets relative to each other.
  • the foamed-in-place plastic also acts as the core of a sandwich construction of which the top and bottom metal surfaces 12 and 22 constitute the exterior skins.
  • This sandwich construction gives great strength against denting of the panel, as well as strength against twisting, bending and other deformation.
  • Still another advantage of the fOamed-inplace plastic core is the thermal insulation provided thereby, which makes the resulting panel especially desirable for incorporation in overhead garage doors.
  • the sheet metal panel may be constructed to include a plurality of formed metal sheets 36 and 38 as shown in FIGURE 4, in place of the single formed metal sheet 11 shown in FIGURES 1 through 3.
  • the flanges 40 and 42 thereon provide additional rigidity for the assembled panel, and provide additional metal as a foundation for the connection of hardware or the like to the panel.
  • a construction panel comprising a hollow, shallow, box-like structure constructed of a first sheet of metal formed to provide the top and two opposite sides of the box and to provide flanges extending from the sides toward each other in a plane parallel with the top, and a second sheet of metal formed to provide the bottom and two opposite ends of the box and to provide flanges extending from the ends toward each other in a plane parallel with the bottom, said second formed sheet being dimensioned to slide into said first formed sheet.
  • a construction panel comprising a hollow, shallow, box-like structure constructed of a first sheet of metal formed to provide the top and two opposite sides of the box and to provide flanges extending from the sides toward each other in a plane parallel with the top, a second sheet of metal formed to provide the bottom and two opposite ends of the box and to provide flanges extending from the ends toward each other in a plane parallel with the bottom, said second formed sheet being dimensioned to slide into said first formed sheet, and means to fasten said two formed sheets together in the assembled position.
  • a construction panel comprising a hollow, shallow, box-like structure constructed of a first sheet of metal formed to provide the top and two opposite sides of the box and to provide flanges extending from the side toward each other in a plane parallel with the top, a second sheet of metal formed to provide the bottom and two opposite ends of the box and to provide flanges extending from the ends toward each other in a plane parallel with the bottom, said second formed sheet being dimensioned to slide into said first formed sheet, and a bad of insulating material dimensioned to fit inside said second formed sheet and to be slid therewith into said first formed sheet.
  • a construction panel comprising a hollow, shallow, box-like structure constructed of a first sheet of metal formed to provide the top and two opposite sides of the box and to provide flanges extending from the sides toward each other in a plane parallel with the top, a second sheet of metal formed to provide the bottom and two opposite ends of the box and to provide flanges extending from the ends toward each other in a plane parallel with the bottom, said second formed sheet being dimensioned to slide into said first formed sheet, and a foamedinplace plastic occupying the interior space of said box-like structure.
  • a construction panel comprising a hollow, shallow, box-like structure constructed of a first sheet of metal formed to provide the top and two opposite sides of the box and to provide flanges extending from the sides toward each other in a plane parallel with the top, said opposite sidesof the box being formed to provide complementary joint-shaped surfaces, and a second sheet of metal formed to provide the bottom and two opposite ends of the box and to provide flanges extending from the ends toward each other in a plane parallel with the bottom, said second formed sheet being dimensioned to slide inside said first formed sheet.

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Panels For Use In Building Construction (AREA)

Description

Dec. 25, 1952 H. E. SWITZGABLE, JR 3,079,196
SHEET METAL PANEL AND METHOD OF MAKING SAME Filed April 14, 1960 J I sauna/v m 22 Agra/44 m FOAM com INVENTOR. HARULD E- SW1 TZ EABLEJB /ZJ/M United States Patent Ofilice 3,070,196 Patented Dec. 25, 1962 3,070,196 SHEET METAL PANEL AND METHOD OF MAKING SAME Harold E. Switzgable, Jr., 21 Adams Drive, Princeton, NJ. Filed Apr. 14, 1960, Ser. No. 22,214 7 Claims. (Cl. 189-34) This invention relates to sheet metal panel constructions, and methods of making same. The invention is particularly useful in the constniction of door panels, such as for sectional steel doors, and also in the construction of buildings, partitions and various other enclosures.
It is an object of the invention to provide a sheet metal panel construction which consists of a minimum number of parts each of which can be conveniently and economically formed.
It is another object of this invention to provide a novel and economical method of constructing an attractive-appearing and rigid sheet metal panel which is also efiective for thermal insulation purposes.
It is a further object of this invention to provide a sheet metal panel so constructed as to have a large measure of rigidity and of resistance to twisting or other deformations.
It is still a further object to provide a sheet metal panel having a finished appearance on all sides.
It is yet another object to provide a sheet metal panel adapted and constructed to be used where thermal insulation is desired.
. The foregoing and other objects of the invention are achieved by a construction, and a method of construction, wherein two sheets of metal are formed to provide a shallow box-like structure. One of the sheets is formed to provide the top and two opposite sides of the box and to provide flanges extending from the sides towards each other in a plane parallel with the top. The other sheet of metal is similarly termed but is dimensioned to slide into the first one and to thereby con stitute the bottom and two ends of the box-like structure. The interior of the box-like structure may be filled with a thermal insulation material. According to a preferred construction and method of construction, a foaming plastic liquid is applied to an inner surface of one of the formed metal sheets and is allowed to foam and solidify in place inside the assembled formed sheets toform a bonded rigid panel structure.
These and other objects and aspects of the invention are described in greater detail in connection with the appended drawings, wherein:
FIGURE 1 is a perspective view, with portions cut away, of a sheet metal panel constructed in accordance with the teachings of this invention;
FIGURE 2 is a longitudinal sectional view of the panel shown in FIGURE 1, and taken on the line 2-2 of FIGURE 3;
FIGURE 3 is a transverse sectional view of the panel of FIGURE 1 and taken on the line 33 of FEGURE 2; and
FIGURE 4 is a perspective view of two sheet metal elements which may be substituted for one of the formed sheet metal elements in the embodiment of FIGURES 1 through 3 for the purpose of providing greater rigidity, and providing localized strength for the attachment of hardware or the like.
Reference will now be made in greater detail to FIG- URES 1 through 3 of the drawings which show a sheet metal panel that is particularly useful in the construction of rolling overhead garage doors or the like. The boxlike sheet metal panel is constructed of a first sheet of metal which is formed to provide the top and two sides of the box, and a second sheet of metal 11 which is formed to provide the bottom and two ends of the box. The sheet of metal 10 has a major flat portion 12 con stituting the top of the box, and has two opposite edges formed into a lap-joint-shaped side 14 and a complimentary lap-joint-shaped side 16. It will he understood that while the sides 14 and 16 are shown as being lap joint shaped, the sides may be straight, or may be shaped to provide any other kind of joint such as a tongue-and-groove joint or a scarf joint. The metal sheet 10 is also additionally formed to provide flanges 18 and 20 extending from the bottoms of the sides 14 and 16, respectively, toward each other and parallel the surface of the top portion 12. It is thus far apparent that the sheet of metal 10 is formed, as by means of a brake, to provide a unitary element constituting the top 12, and the sides 14 and 16 of a box-like structure, and also to form the flanges 18 and 29.
The second sheet of metal 11 used in the construction of the box-like structure is similarly formed to provide a major intermediate portion or bottom 22, and ends 24 and 26 of the box-like structure. The metal sheet 11 is additionally formed to provide flanges 2-8 and 30 extending from the upper edges of the ends 24 and 26, respectively, toward each other and parallel with the bottom portion 22 of the sheet. The metal sheet 11 is formed to provide the bottom 22, the ends 24 and 26, and the flanges 28 and 3%), the various portions of the metal sheet 11 being dimensioned so that the formed sheet 11 can be assembled into the position shown in the drawing by sliding the formed metal sheet 11 into and inside the formed metal sheet 10.
When the sheet metal panel of FIGURES 1 through 3 is to be used in an environment where it is desirable to provide thermal insulation, a batt of insulating material is dimensioned and positioned in the formed metal sheet 11 prior to sliding the formed metal sheet 11 inside the formed metal sheet It). The oatt of insulating material may comprise any of the pulp or textile or noncombustible fibers, or may comprise a block of solid foamed plastic. Alternatively, the batt of insulating material may be constituted by a honeycomb core having dimensions to fill the interior space.
It will be understood that a good measure of thermal insulation is provided by the box-like panel construction even though the interior is not filled with insulating material. This results from the fact that the box-like construction encloses a dead air space. The construction is particularly effective for this purpose when the sides 14 and '16 are straight and not lap joint shaped, or when the openings 32 are closed by any suitable means.
The formed metal sheets 11? and 11 may be fastened in the assembled position shown in the drawing by a suitable means, such as by applying an adhesive to portions of the flanges 18, 2t), 28 and 30, or by employing sheet metal screws or blind rivets connecting the flanges to the contiguous surfaces of the other formed metal sheet, or by employing through bolts such as in connection with the attachment of hardware to the panel.
A preferred construction, and method of construction, will now be described. A foaming plastic liquid is applied to the major surface of one of the formed metal sheets it) or 11. This is preferably done before the bottom formed sheet 11 is slid into the top formed sheet 10, or simultaneously with the step of sliding the formed sheet 11 into the top sheet 10. The foaming plastic liquid is applied by a pumping or spraying apparatus including a mixing valve which mixes the two ingredients necessary to initiate the foaming action. The foaming plastic should be one, such as polyurethane or epoxy, which will adhere to the formed metal sheets 10 and 11.
After the foaming plastic liquid is applied to an interior surface of one of the formed metal sheets, the sheets are maintained in the finally-desired assembled relationship while the plastic liquid foams and fills the interior space. After this occurs, the foam solidifies and bonds to the formed metal sheets and 11 so that they are permanently fixed together as a panel. No other fastening means are required. It will be noted that the formed sheets 10 and 11 are so shaped that they can be disassembled only by a sliding motion. This motion is completely prevented by the bonded plastic foam in the interior of the panel. Therefore, the flanges 18, 20, and 28, 30 need be made to extend from the respective sides and ends a distance just suflicient to provide the desired rigidity and the necessary bearing surfaces for locating the two formed sheets relative to each other.
In addition to bonding the formed metal sheets against sliding disassembly, the foamed-in-place plastic also acts as the core of a sandwich construction of which the top and bottom metal surfaces 12 and 22 constitute the exterior skins. This sandwich construction gives great strength against denting of the panel, as well as strength against twisting, bending and other deformation. Still another advantage of the fOamed-inplace plastic core is the thermal insulation provided thereby, which makes the resulting panel especially desirable for incorporation in overhead garage doors.
When the sheet metal panel has a great length in the direction of the sectional view of FIGURE 2, and considerable rigidity is desired, the sheet metal panel may be constructed to include a plurality of formed metal sheets 36 and 38 as shown in FIGURE 4, in place of the single formed metal sheet 11 shown in FIGURES 1 through 3. When the members shown in FIGURE 4 are employed, the flanges 40 and 42 thereon provide additional rigidity for the assembled panel, and provide additional metal as a foundation for the connection of hardware or the like to the panel.
It is thus apparent that according to the teachings of this invention there is provided a sheet metal panel which is very rigid, is neat in appearance, provides thermal insulation and is simple and economical to fabricate.
What is claimed is:
l. A construction panel comprising a hollow, shallow, box-like structure constructed of a first sheet of metal formed to provide the top and two opposite sides of the box and to provide flanges extending from the sides toward each other in a plane parallel with the top, and a second sheet of metal formed to provide the bottom and two opposite ends of the box and to provide flanges extending from the ends toward each other in a plane parallel with the bottom, said second formed sheet being dimensioned to slide into said first formed sheet.
2. A construction panel comprising a hollow, shallow, box-like structure constructed of a first sheet of metal formed to provide the top and two opposite sides of the box and to provide flanges extending from the sides toward each other in a plane parallel with the top, a second sheet of metal formed to provide the bottom and two opposite ends of the box and to provide flanges extending from the ends toward each other in a plane parallel with the bottom, said second formed sheet being dimensioned to slide into said first formed sheet, and means to fasten said two formed sheets together in the assembled position.
3. A construction panel according to claim 2 wherein said fastening means is located to secure the flanges of at least one of said formed sheets to the contiguous surface of the other of said formed sheets.
4. A construction panel comprising a hollow, shallow, box-like structure constructed of a first sheet of metal formed to provide the top and two opposite sides of the box and to provide flanges extending from the side toward each other in a plane parallel with the top, a second sheet of metal formed to provide the bottom and two opposite ends of the box and to provide flanges extending from the ends toward each other in a plane parallel with the bottom, said second formed sheet being dimensioned to slide into said first formed sheet, and a bad of insulating material dimensioned to fit inside said second formed sheet and to be slid therewith into said first formed sheet.
5. A construction panel comprising a hollow, shallow, box-like structure constructed of a first sheet of metal formed to provide the top and two opposite sides of the box and to provide flanges extending from the sides toward each other in a plane parallel with the top, a second sheet of metal formed to provide the bottom and two opposite ends of the box and to provide flanges extending from the ends toward each other in a plane parallel with the bottom, said second formed sheet being dimensioned to slide into said first formed sheet, and a foamedinplace plastic occupying the interior space of said box-like structure.
6. A construction panel as defined in claim 1 wherein a plurality of said second formed sheets are employed and" V are dimensioned to slide into said one first formed sheet to form a box-like structure having a plurality of chamhers.
7. A construction panel comprising a hollow, shallow, box-like structure constructed of a first sheet of metal formed to provide the top and two opposite sides of the box and to provide flanges extending from the sides toward each other in a plane parallel with the top, said opposite sidesof the box being formed to provide complementary joint-shaped surfaces, and a second sheet of metal formed to provide the bottom and two opposite ends of the box and to provide flanges extending from the ends toward each other in a plane parallel with the bottom, said second formed sheet being dimensioned to slide inside said first formed sheet.
References Cited in the file of this patent UNITED STATES PATENTS 1,797,706 Winslow Mar. 24, 1931 2,730,210 McLaughlin Jan. 10, 1956 2,744,042 Pace May 1, 1956 2,951,781 Toegel Sept. 6, 1960 FOREIGN PATENTS 664,562 Great Britain Jan. 9, 1952
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Cited By (20)

* Cited by examiner, † Cited by third party
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US3195699A (en) * 1962-01-08 1965-07-20 Johnston Charles Richard Insulated wall construction
US3252262A (en) * 1962-01-25 1966-05-24 Ceco Corp Door construction
US3282003A (en) * 1962-01-12 1966-11-01 Prec Engineering Concern Inc Modular controlled atmosphere enclosure
US3401495A (en) * 1965-04-05 1968-09-17 Nat Gypsum Co Composite floor-ceiling element
US3484800A (en) * 1967-11-14 1969-12-16 Metalleichtbaukombinat Forschu Gas purifying plant
US3906067A (en) * 1973-10-29 1975-09-16 Howard E Alspach Bridge icing deterrent
US4161567A (en) * 1977-09-12 1979-07-17 Proctor & Schwartz, Inc. Panels for industrial dryers and other heated enclosures having stainless steel end structural sheet elements
US4284119A (en) * 1979-07-23 1981-08-18 Martin Overhead Door And Electronics Co. Overhead door and overhead door section system and method
US4347653A (en) * 1979-07-23 1982-09-07 Martin Overhead Door And Electronics Company Method of preparing a section for an overhead door
USRE31461E (en) * 1979-07-23 1983-12-13 Martin Overhead Door And Electronics Co. Method of preparing a section for an overhead door
US4653239A (en) * 1984-04-12 1987-03-31 Randa Wallace H Pre-engineered building and method of assembling same
US4928468A (en) * 1988-12-05 1990-05-29 Phillips Edward H Building panel module
US6070382A (en) * 1996-04-10 2000-06-06 Rockwool Lapinus B.V. Insulated metal wall construction
US20050133016A1 (en) * 2000-08-25 2005-06-23 Greg Neal Modular oven, panel assembly and method of assembling the same
US20060010830A1 (en) * 2004-07-01 2006-01-19 Fluoro-Seal, Inc. Interlocking honeycomb-cored panel system for construction of load supporting surfaces
US20060162379A1 (en) * 2002-07-02 2006-07-27 Stefan Wilhelm Cold box sheet metal jacket
US20080029528A1 (en) * 2006-08-01 2008-02-07 Mireault Pierre Storage and dispenser box for small articles
FR2921684A1 (en) * 2007-09-28 2009-04-03 Fermetures Javey Soc Par Actio METHOD FOR MAKING A PANEL DOOR DITE SECTIONAL, IN PARTICULAR GARAGE, AND DOOR OBTAINED
US20100095634A1 (en) * 2007-09-27 2010-04-22 Caterpillar Japan Ltd. Door panel
US8925203B2 (en) 2008-07-14 2015-01-06 Robert Scott Systems and methods for manufacturing a carriage style sectional door

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US1797706A (en) * 1930-09-11 1931-03-24 Mills Company Sheet-metal panel
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US3195699A (en) * 1962-01-08 1965-07-20 Johnston Charles Richard Insulated wall construction
US3282003A (en) * 1962-01-12 1966-11-01 Prec Engineering Concern Inc Modular controlled atmosphere enclosure
US3252262A (en) * 1962-01-25 1966-05-24 Ceco Corp Door construction
US3401495A (en) * 1965-04-05 1968-09-17 Nat Gypsum Co Composite floor-ceiling element
US3484800A (en) * 1967-11-14 1969-12-16 Metalleichtbaukombinat Forschu Gas purifying plant
US3906067A (en) * 1973-10-29 1975-09-16 Howard E Alspach Bridge icing deterrent
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US4284119A (en) * 1979-07-23 1981-08-18 Martin Overhead Door And Electronics Co. Overhead door and overhead door section system and method
US4347653A (en) * 1979-07-23 1982-09-07 Martin Overhead Door And Electronics Company Method of preparing a section for an overhead door
USRE31461E (en) * 1979-07-23 1983-12-13 Martin Overhead Door And Electronics Co. Method of preparing a section for an overhead door
US4653239A (en) * 1984-04-12 1987-03-31 Randa Wallace H Pre-engineered building and method of assembling same
US4928468A (en) * 1988-12-05 1990-05-29 Phillips Edward H Building panel module
US6070382A (en) * 1996-04-10 2000-06-06 Rockwool Lapinus B.V. Insulated metal wall construction
US20050133016A1 (en) * 2000-08-25 2005-06-23 Greg Neal Modular oven, panel assembly and method of assembling the same
US7216464B2 (en) * 2000-08-25 2007-05-15 Raypaul Industries, Inc. Modular oven wall panel assembly
US20060162379A1 (en) * 2002-07-02 2006-07-27 Stefan Wilhelm Cold box sheet metal jacket
US9285164B2 (en) * 2002-07-02 2016-03-15 Linde Aktiengesellschaft Cold box sheet metal jacket
US20060010830A1 (en) * 2004-07-01 2006-01-19 Fluoro-Seal, Inc. Interlocking honeycomb-cored panel system for construction of load supporting surfaces
US20080029528A1 (en) * 2006-08-01 2008-02-07 Mireault Pierre Storage and dispenser box for small articles
US20100095634A1 (en) * 2007-09-27 2010-04-22 Caterpillar Japan Ltd. Door panel
US7934354B2 (en) * 2007-09-27 2011-05-03 Caterpillar S.A.R.L. Door panel
FR2921684A1 (en) * 2007-09-28 2009-04-03 Fermetures Javey Soc Par Actio METHOD FOR MAKING A PANEL DOOR DITE SECTIONAL, IN PARTICULAR GARAGE, AND DOOR OBTAINED
EP2042676A3 (en) * 2007-09-28 2010-01-13 Javey Method of manufacturing a so-called sectional door with panels, in particular for a garage, and door thus obtained
US8925203B2 (en) 2008-07-14 2015-01-06 Robert Scott Systems and methods for manufacturing a carriage style sectional door

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