US2779066A - Insulated refrigerator wall - Google Patents
Insulated refrigerator wall Download PDFInfo
- Publication number
- US2779066A US2779066A US289482A US28948252A US2779066A US 2779066 A US2779066 A US 2779066A US 289482 A US289482 A US 289482A US 28948252 A US28948252 A US 28948252A US 2779066 A US2779066 A US 2779066A
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- United States
- Prior art keywords
- insulation
- bag
- walls
- wall
- air
- Prior art date
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- Expired - Lifetime
Links
- 238000009413 insulation Methods 0.000 description 46
- 239000000463 material Substances 0.000 description 28
- 239000007789 gas Substances 0.000 description 25
- 238000003475 lamination Methods 0.000 description 15
- 239000000945 filler Substances 0.000 description 11
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 9
- 230000008602 contraction Effects 0.000 description 7
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 6
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 4
- 239000003365 glass fiber Substances 0.000 description 4
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 229920002799 BoPET Polymers 0.000 description 2
- 239000005041 Mylar™ Substances 0.000 description 2
- PXBRQCKWGAHEHS-UHFFFAOYSA-N dichlorodifluoromethane Chemical compound FC(F)(Cl)Cl PXBRQCKWGAHEHS-UHFFFAOYSA-N 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 239000002648 laminated material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000005022 packaging material Substances 0.000 description 2
- 229920008712 Copo Polymers 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 241000272534 Struthio camelus Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 235000019404 dichlorodifluoromethane Nutrition 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/06—Walls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2201/00—Insulation
- F25D2201/10—Insulation with respect to heat
-
- 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
- Y10S62/00—Refrigeration
- Y10S62/13—Insulation
-
- 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
- Y10T428/23—Sheet including cover or casing
- Y10T428/231—Filled with gas other than air; or under vacuum
-
- 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
- Y10T428/23—Sheet including cover or casing
- Y10T428/237—Noninterengaged fibered material encased [e.g., mat, batt, etc.]
-
- 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
- Y10T428/23—Sheet including cover or casing
- Y10T428/239—Complete cover or casing
-
- 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.]
- Y10T428/249962—Void-containing component has a continuous matrix of fibers only [e.g., porous paper, etc.]
- Y10T428/249964—Fibers of defined composition
-
- 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]
- Y10T428/31786—Of polyester [e.g., alkyd, etc.]
- Y10T428/31797—Next to addition polymer from unsaturated monomers
Definitions
- I INVEN TOR Ri ch ard S. Gaugler.
- This invention relates to refrigerating apparatus and more particularly to an improved arrangement for insulating the walls of refrigerators and the like.
- Another object of this invention is to provide a material for packaging insulation which will hold up over a long period of years over relatively wide temperature ranges and which will prevent the passing of the insulating gas from the package to the exterior of the package and which will also prevent the passage of air into the package.
- Another object of this invention is to provide a packaging material which has the necessary ability to prevent the transfer of moisture into the package as a build-up of moisture in the insulation tends to materially reduce the insulating property thereof.
- Still another object of this invention is to provide a laminated packaging material whereby any pin holes in each of the laminations are sealed by an adjacent lamination.
- Another object of this invention is to utilize a laminated material wherein the desirable properties of each of the laminae compensate for the undesirable properties of the other laminae and wherein at least one of the laminae may be heat sealed.
- a further object of this invention is to provide a refrigerator with bag type insulation having means for compensating for differences in atmospheric pressure. More particularly it is an object of this invention to provide insulation which allows for limited expansion and contraction of the bagged insulation without causing bulging of the walls of the refrigerator.
- Figure 1 is a pictorial view, with parts broken away, showing a conventional household refrigerator provided with insulation constructed in accordance with the invention
- Figure 2 is a fragmentary sectional view showing a wall section on an enlarged scale
- Figure 3 is a fragmentary plan view of 'the material used for enclosing the insulation
- Figure 4 is a fragmentary sectional view on a greatly enlarged scale showing the manner in which the pin holes in one sheet are sealed by the adjacent sheet and showing the manner in which the adhesive used in laminating the sheets further seals the pin holes;
- Figure 5 is a plan view of a chart showing the thermal 2,779,066 Patented Jan. 29, 1957 ice conductivity of various gases and vapors at various Fahrenheit temperatures.
- reference numeral 10 designates the outer shell or housing of a conventional household refrigerator.
- Reference numeral 12 designates the liner or inner wall of the refrigerator. The space between the inner wall and the outer wall is filled with hermetically sealed bags of insulation 14 and slabs 16 of unbagged insulation.
- the bags 14, as best shown in Figure 2 of the drawbags, are made up of laminations 18 and 20 which are heat sealed at 24 and which are filled with glass fiber insulation 26 and a gas having a low coefficient of conductivity such as difluorodichloromethane, commonly called Freon or F-12. It has been found that by replacing the air with Freon in each bag of insulation it is possible to materially reduce the rate of heat transfer through the insulation. As shown in the chart in Figure 5 of the drawings, the K factor, which is the factor designating the thermal conductivity of gases and vapors in terms of B. t. u. per hour, per square foot, per degree Fahrenheit, per inch thickness, is much less for Freon than for air, with the result that it is possible to approximately double the insulating ability of bagged insulation when Freon is substituted for the air in the bag. 7
- the big problem in utilizing the insulating properties of Freon or other similar gases is that of providing a bag which will prevent the loss of Freon from the bag during the life of the refrigerator and which will also prevent the ingress of air into the bag.
- Some materials have been found to be good barriers for Freon but to be relatively poor barriers for air and if one should use such a material the Freon would remain in the bag but air would enter the bag and, consequently, in accordance with the law of partial pressures, the bag would eventually burst or excessively bulge and the insulating value of the bag would be reduced substantially whereas if one were to select a material which would prevent the ingress of air but would not satisfactorily prevent the loss of Freon, the bags would not only lose their insulating value because of the loss of Freon charge, but would also tend to col lapse and compress the solid insulation fibers so as to materially reduce the insulating property of the assembly.
- Metal foil would meet the above requirements but its thermal conductivity is too high to be useful in making the bags.
- the density of the fiber glass insulation 16 is preferably about 1.25 pounds per cubic foot whereas the density of the fiber glass insulation 26 in the bags is preferably about 3.75 pounds per cubic foot.
- the outer layer of the bags is preferably made of Mylar which is a polyester of ethylene glycol and terephth-alic acid and which is about eight times better than Saran as a barrier to the passage of Freon under some conditions. At higher temperatures encountered, Saran tends to become plastic whereas Mylar does not and, therefore, the combination of the two is very ideal.
- polystyrene As this is a very good barrier for Freon but not for air and therefore must be used in conjunction with a material such as Saran which will prevent the passage of air.
- the sheets used for making the laminations should preferably be .001 inch or more thick. The thicker the laminations the less is the leakage but for cost purposes the thickness should be kept down within reason.
- laminated films it is not only intended to include a film product made by bonding two separate sheets of material together but also to include products made by other processes such as spraying a layer or coating of one material upon a sheet or film of the same or a different material.
- the method of preparing multiple layers may be varied insofar as certain aspects of the invention are concerned.
- a refrigerator an outer wall, an inner wall spaced from said outer wall, insulation between said walls, said insulation comprising outer bag means, filler material Within said bag means having voids therein, and a gas filling said voids, said gas having a coefiicient of thermal conductivity less than that of air, said bag means having a thickness less than the distance between said walls, and compressible insulation in the space between said bag means and said walls whereby expansion and contraction of said bag means is permitted without distortion of said Walls.
- a refrigerator an outer wall, an inner wall spaced from said outer wall, insulation between said walls, said insulation comprising outer bag means, filler material within said bag means having voids therein, and a gas filling said voids, said gas having 'a coefiicient of thermal conductivity less than that of air, said bag means having a thickness less than the distance between said walls, and compressible insulation in the space between said bag means and said Walls whereby expansion and contraction of said bag means is permitted without distortion of said walls, said filler material having a density in excess of the density of said compressible insulation.
- an outer wall an inner wall spaced from said outer wall, insulation between said walls, said insulation comprising outer bag means, filler material Within said bag means having voids therein, and a gas filling said voids, said gas having a coefficient of thermal conductivity less than that of air, said bag means having a thickness less than the distance between said walls whereby expansion and contraction of said bag means is permitted without distortion of said walls, and compressible insulation filling the space between the bag means and said walls, said bag means having laminated walls with adjacent laminations thereof bonded together whereby any holes which may exist in the one lamination are sealed by the adjacent lamination.
- an outer wall an inner wall spaced from said outer wall, insulation between said walls, said insulation comprising outer bag means, filler material within said bag means having voids therein, and a gas filling said voids, said gas having a coefficient of thermal conductivity less than that of air, said bag means having a thickness less than the distance between said walls whereby expansion and contraction of said bag means is permitted without distortion of said walls, and compressible insulation filling the space between the bag means and said walls, said bag means having laminated walls with adjacent laminations thereof bonded together whereby any holes which may exist in the one lamination are sealed by the adjacent lamination, said filler material and said compressible insulation comprising glass fibers.
- an insulated receptacle an outer wall, an inner wall spaced from said outer wall and insulation between said walls, said insulation comprising a laminated bag in which one lamination comprises a copolymer of vinyl chloride and vinylidene chloride and another lamination comprises a polyester of ethylene glycol and terephthalic acid, filler material within said bag having voids therein, and a gas filling said voids, said gas having a coefficient of thermal conductivity less than that of air.
- an insulated receptacle an outer wall, an inner wall spaced from said outer Wall and insulation between said walls, said insulation comprising a laminated bag having one layer substantially impervious to the passage of air and having a second layer substantially impervious to the passage of a given gas, filler material within said bag having voids therein and a quantity of said given gas in said voids, said gas having a coeflicient of thermal conductivity less than that of air.
- a heat insulating material having voids therein, a bag enclosing said material, a gas having a coefiicient of thermal conductivity less than that of air filling said voids, said bag comprising a laminated film having a first layer substantially impervious to the passage of air and having a second layer substantially impervious to the passage of said gas, one of said layers comprising a copolymer of vinyl chloride and vinylidene chloride and another of said layers comprising a polyester of ethylene glycol and terephthalic acid, and bonding material between said layers and sealing any pinholes in either of said layers.
Description
Jan. 29, 1957 R. s. GAUGLER ETAL 2,779,066
INSULATED REFRIGERATOR WALL Filed May 25, 1952 2 Sheets-Sheet 1 Fig. I Fig. 2
INVENTOR.
Richard S. Gayg/er,
3 ByWZZLJIHd F1 SchweHyeL;
1957 R. s. GAUGLER ET AL 2,779,066
INSULATED REFRIGERATOR WALL Filed May 23, 1952 2 Sheets-Sheet 2 THERMAL CONDUCTIVITY OF GASES a VAPORS TEMP.
.050 .l00 .ISO
.200 K FACTOR F lg. 5
I INVEN TOR. Ri ch ard S. Gaugler.
E imund F. Szhwel/er, By W] r% United States Patent INSULATED REFRIGERATOR WALL Application May 23, 1952, Serial No. 289,482
8 Claims. (Cl. 20-4) This invention relates to refrigerating apparatus and more particularly to an improved arrangement for insulating the walls of refrigerators and the like.
It is an object of this invention to provide an improved and practical insulation in which gas having a low coefficient of thermal conductivity is used in combination with glass fibers or the like.
It is another object of this invention to provide such an insulation which is relatively unaffected in its insulating properties over long periods of years.
Another object of this invention is to provide a material for packaging insulation which will hold up over a long period of years over relatively wide temperature ranges and which will prevent the passing of the insulating gas from the package to the exterior of the package and which will also prevent the passage of air into the package.
Another object of this invention is to provide a packaging material which has the necessary ability to prevent the transfer of moisture into the package as a build-up of moisture in the insulation tends to materially reduce the insulating property thereof.
Still another object of this invention is to provide a laminated packaging material whereby any pin holes in each of the laminations are sealed by an adjacent lamination.
Another object of this invention is to utilize a laminated material wherein the desirable properties of each of the laminae compensate for the undesirable properties of the other laminae and wherein at least one of the laminae may be heat sealed.
A further object of this invention is to provide a refrigerator with bag type insulation having means for compensating for differences in atmospheric pressure. More particularly it is an object of this invention to provide insulation which allows for limited expansion and contraction of the bagged insulation without causing bulging of the walls of the refrigerator.
Further objects and advantages of the present invention will be apparent from the following description, reference being had to the accompanying drawings, wherein a preferred form of the present invention is clearly shown.
In the drawings:
Figure 1 is a pictorial view, with parts broken away, showing a conventional household refrigerator provided with insulation constructed in accordance with the invention;
Figure 2 is a fragmentary sectional view showing a wall section on an enlarged scale;
Figure 3 is a fragmentary plan view of 'the material used for enclosing the insulation;
Figure 4 is a fragmentary sectional view on a greatly enlarged scale showing the manner in which the pin holes in one sheet are sealed by the adjacent sheet and showing the manner in which the adhesive used in laminating the sheets further seals the pin holes; and
Figure 5 is a plan view of a chart showing the thermal 2,779,066 Patented Jan. 29, 1957 ice conductivity of various gases and vapors at various Fahrenheit temperatures.
For purposes of illustrating the invention there is shown in the drawings a household refrigerator whereas certain aspects of the invention are equally applicable to the other types of products wherein it is desired to provide heat insulation for preventing the rapid transfer of heat through a wall section or the like.
Referring now to the drawings wherein a preferred embodiment of the invention is disclosed, reference numeral 10 designates the outer shell or housing of a conventional household refrigerator. Reference numeral 12 designates the liner or inner wall of the refrigerator. The space between the inner wall and the outer wall is filled with hermetically sealed bags of insulation 14 and slabs 16 of unbagged insulation.
The bags 14, as best shown in Figure 2 of the drawbags, are made up of laminations 18 and 20 which are heat sealed at 24 and which are filled with glass fiber insulation 26 and a gas having a low coefficient of conductivity such as difluorodichloromethane, commonly called Freon or F-12. It has been found that by replacing the air with Freon in each bag of insulation it is possible to materially reduce the rate of heat transfer through the insulation. As shown in the chart in Figure 5 of the drawings, the K factor, which is the factor designating the thermal conductivity of gases and vapors in terms of B. t. u. per hour, per square foot, per degree Fahrenheit, per inch thickness, is much less for Freon than for air, with the result that it is possible to approximately double the insulating ability of bagged insulation when Freon is substituted for the air in the bag. 7
The big problem in utilizing the insulating properties of Freon or other similar gases is that of providing a bag which will prevent the loss of Freon from the bag during the life of the refrigerator and which will also prevent the ingress of air into the bag. Some materials have been found to be good barriers for Freon but to be relatively poor barriers for air and if one should use such a material the Freon would remain in the bag but air would enter the bag and, consequently, in accordance with the law of partial pressures, the bag would eventually burst or excessively bulge and the insulating value of the bag would be reduced substantially whereas if one were to select a material which would prevent the ingress of air but would not satisfactorily prevent the loss of Freon, the bags would not only lose their insulating value because of the loss of Freon charge, but would also tend to col lapse and compress the solid insulation fibers so as to materially reduce the insulating property of the assembly. Metal foil would meet the above requirements but its thermal conductivity is too high to be useful in making the bags.
It has been found that it is not only necessary to provide a material which will prevent changes in pressure resulting from leakage through the walls of the bag but is also necessary to provide an insulation which is not adversely affected by changes in atmospheric pressures. Since some refrigerators are used at or near sea level, whereas other refrigerators are used or are transported over routes Where the elevation may exceed ten or more thousand feet, it is apparent a bag filled with Freon at atmospheric pressure at sea level would tend to burst or materially bulge in high altitudes. This problem has been solved by providing extra space between the walls of the refrigerator so as to permit limited expansion of the bags.
As indicated in Figures 1 and 2 of the drawings, this extra space is filled with compressible or loose insulation which is not placed in bags and this then allows the necessary expansion and contraction of the bagged insulation without exerting excessive pressures against the walls of the refrigerator. Thus,.if the bags would expand,
the loose insulation 16 would merely compress Without bulging the Walls of the refrigerator. The density of the fiber glass insulation 16 is preferably about 1.25 pounds per cubic foot whereas the density of the fiber glass insulation 26 in the bags is preferably about 3.75 pounds per cubic foot.
It has been found that by making the bags of laminated material the passage of air and/or Freon through the walls of the bag is materially reduced. There are several reasons for this; in the first place, the laminations are secured to one another by means of adhesive material such as vinyl chloride or a rubber base type of adhesive which would tend to seal the pin holes as shown in Figure 4 of the drawings. Furthermore, when one secures one sheet of material having pin holes to another sheet having pin holes the likelihood of two pin holes becoming aligned with one another is extremely remote with the result that each sheet or layer serves to seal the pinhole openings in the adjacent sheet. Figures 3 and 4 are intended to illustrate this point and in these figures the reference numeral 30 has been used to designate the pin holes in the adiacent sheets and the reference numeral 32 has been used to designate the adhesive which bonds the sheets together and seals the pin holes.
it has been found that a copolymer of vinyl chloride and vinylidene chloride such as the product known as Saran has certain properties which make it ideal for the one layer. Thus, one of the advantages of using such a copolymer for the one layer is that it may be heat sealed whereas most other types of plastic or other sheet material cannot be heat sealed. Furthermore Saran seems to be an ideal barrier to the passage of 'both moisture and air and a fairly good barrier to Freon. Still another ad vantage of the use of copo'lymers of this type is that they stand up well at the low temperatures encountered in refrigeration work. The outer layer of the bags is preferably made of Mylar which is a polyester of ethylene glycol and terephth-alic acid and which is about eight times better than Saran as a barrier to the passage of Freon under some conditions. At higher temperatures encountered, Saran tends to become plastic whereas Mylar does not and, therefore, the combination of the two is very ideal.
Another plastic material which may be used as one of the laminations is polystyrene as this is a very good barrier for Freon but not for air and therefore must be used in conjunction with a material such as Saran which will prevent the passage of air.
The sheets used for making the laminations should preferably be .001 inch or more thick. The thicker the laminations the less is the leakage but for cost purposes the thickness should be kept down within reason.
In referring to laminated films it is not only intended to include a film product made by bonding two separate sheets of material together but also to include products made by other processes such as spraying a layer or coating of one material upon a sheet or film of the same or a different material. In other words the method of preparing multiple layers may be varied insofar as certain aspects of the invention are concerned.
By virtue of the particular combination of materials in the laminated sheets and the insulating gas used, a vastly superior type of insulation has been produced which is capable of retaining its insulating properties over long periods of time without being damaged by temperature or pressure fluctuations or other factors such as moisture, oil, etc.
While the form of embodiment of the invention as herein disclosed constitutes a preferred form, it is to be understood that other forms might be adopted, as may come within the scope of the claims which follow.
What is claimed is as follows:
1. In a refrigerator, an outer wall, an inner wall spaced from said outer wall, insulation between said walls, said insulation comprising outer bag means, filler material Within said bag means having voids therein, and a gas filling said voids, said gas having a coefiicient of thermal conductivity less than that of air, said bag means having a thickness less than the distance between said walls, and compressible insulation in the space between said bag means and said walls whereby expansion and contraction of said bag means is permitted without distortion of said Walls.
2. In a refrigerator, an outer wall, an inner wall spaced from said outer wall, insulation between said walls, said insulation comprising outer bag means, filler material within said bag means having voids therein, and a gas filling said voids, said gas having 'a coefiicient of thermal conductivity less than that of air, said bag means having a thickness less than the distance between said walls, and compressible insulation in the space between said bag means and said Walls whereby expansion and contraction of said bag means is permitted without distortion of said walls, said filler material having a density in excess of the density of said compressible insulation.
3. In a. refrigerator, an outer wall, an inner wall spaced from said outer Wall, insulation between said walls, said insulation comprising outer bag means, filler material within said bag means having voids therein, and a gas filling said voids, said gas having a coeflicient of thermal conductivity less than that of air, said bag means having a thickness less than the distance between said walls, and compressible insulation in the space between said bag means and said walls whereby expansion and contraction of said bag means is permitted without distortion of said walls, said filler material having a density in excess of the density of said compressible insulation, said filler material comprising glass fibers.
4. In a refrigerator, an outer wall, an inner wall spaced from said outer wall, insulation between said walls, said insulation comprising outer bag means, filler material Within said bag means having voids therein, and a gas filling said voids, said gas having a coefficient of thermal conductivity less than that of air, said bag means having a thickness less than the distance between said walls whereby expansion and contraction of said bag means is permitted without distortion of said walls, and compressible insulation filling the space between the bag means and said walls, said bag means having laminated walls with adjacent laminations thereof bonded together whereby any holes which may exist in the one lamination are sealed by the adjacent lamination.
5. In a refrigerator, an outer wall, an inner wall spaced from said outer wall, insulation between said walls, said insulation comprising outer bag means, filler material within said bag means having voids therein, and a gas filling said voids, said gas having a coefficient of thermal conductivity less than that of air, said bag means having a thickness less than the distance between said walls whereby expansion and contraction of said bag means is permitted without distortion of said walls, and compressible insulation filling the space between the bag means and said walls, said bag means having laminated walls with adjacent laminations thereof bonded together whereby any holes which may exist in the one lamination are sealed by the adjacent lamination, said filler material and said compressible insulation comprising glass fibers.
6. In an insulated receptacle, an outer wall, an inner wall spaced from said outer wall and insulation between said walls, said insulation comprising a laminated bag in which one lamination comprises a copolymer of vinyl chloride and vinylidene chloride and another lamination comprises a polyester of ethylene glycol and terephthalic acid, filler material within said bag having voids therein, and a gas filling said voids, said gas having a coefficient of thermal conductivity less than that of air.
7. In an insulated receptacle, an outer wall, an inner wall spaced from said outer Wall and insulation between said walls, said insulation comprising a laminated bag having one layer substantially impervious to the passage of air and having a second layer substantially impervious to the passage of a given gas, filler material within said bag having voids therein and a quantity of said given gas in said voids, said gas having a coeflicient of thermal conductivity less than that of air.
8. In combination, a heat insulating material having voids therein, a bag enclosing said material, a gas having a coefiicient of thermal conductivity less than that of air filling said voids, said bag comprising a laminated film having a first layer substantially impervious to the passage of air and having a second layer substantially impervious to the passage of said gas, one of said layers comprising a copolymer of vinyl chloride and vinylidene chloride and another of said layers comprising a polyester of ethylene glycol and terephthalic acid, and bonding material between said layers and sealing any pinholes in either of said layers.
References Cited in the file of this patent UNITED STATES PATENTS 1,615,801 Elmendorf Ian. 25, 1927 6 Finck July 24, Powell May 7, Munters Jan. 5, Dickson Feb. 23, Roberts Aug. 31, Gould Feb. 1, Leslie Feb. 15, Roberts Apr. 19, Bonsall May 17, Kuenzli Dec. 31., Strauss May 5, Ray Feb. 27, Van Etten Nov. 2, Kleist Jan. 31, Schilling July 4, Bradley July 4, De Sylva Aug. 7, Yung et al May 27, Slatterbeck July 22, Irvine Sept. 16, Pietsch Dec. 16, Sterling Feb. 24,
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US289482A US2779066A (en) | 1952-05-23 | 1952-05-23 | Insulated refrigerator wall |
DEG7264U DE1717302U (en) | 1952-05-23 | 1953-05-21 | THERMAL INSULATION, IN PARTICULAR FOR REFRIGERATORS. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US289482A US2779066A (en) | 1952-05-23 | 1952-05-23 | Insulated refrigerator wall |
Publications (1)
Publication Number | Publication Date |
---|---|
US2779066A true US2779066A (en) | 1957-01-29 |
Family
ID=23111731
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US289482A Expired - Lifetime US2779066A (en) | 1952-05-23 | 1952-05-23 | Insulated refrigerator wall |
Country Status (2)
Country | Link |
---|---|
US (1) | US2779066A (en) |
DE (1) | DE1717302U (en) |
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US2817123A (en) * | 1955-03-24 | 1957-12-24 | Gen Motors Corp | Refrigerating apparatus |
US2834970A (en) * | 1957-08-07 | 1958-05-20 | Nappe Moritz | Sealed pad |
US2863179A (en) * | 1955-06-23 | 1958-12-09 | Gen Motors Corp | Refrigerating apparatus |
US2889078A (en) * | 1955-12-16 | 1959-06-02 | Colgate Palmolive Co | Dispensing container for pressurepropelled products |
US2927626A (en) * | 1958-02-03 | 1960-03-08 | Robert G Corwin | Insulating blanket for concrete |
US2939811A (en) * | 1957-03-25 | 1960-06-07 | Gen Electric | Heat-insulating units for refrigerator cabinets |
US2961030A (en) * | 1957-03-15 | 1960-11-22 | Pan American Petroleum Corp | Vapor barrier for cold surfaces |
US2961342A (en) * | 1957-08-15 | 1960-11-22 | Gen Electric | Methods of making gas impervious sheet material |
US2966229A (en) * | 1955-02-15 | 1960-12-27 | Grant E Frezieres | Ladder construction |
US3020183A (en) * | 1959-05-13 | 1962-02-06 | Calvaresi Archie | Protective insulating mat |
US3032772A (en) * | 1960-08-02 | 1962-05-08 | Raymond L Fonash | Protective garment for astronauts employing sublimating salts |
US3039849A (en) * | 1957-06-05 | 1962-06-19 | Du Pont | Aluminum oxide production |
US3040539A (en) * | 1960-04-27 | 1962-06-26 | Gen Motors Corp | Refrigerating apparatus |
US3092530A (en) * | 1959-09-21 | 1963-06-04 | Walter A Plummer | Heat protective sheathing |
US3103042A (en) * | 1959-09-28 | 1963-09-10 | Maquinas Fabricacion Sa De | Structural building element |
US3106307A (en) * | 1960-08-03 | 1963-10-08 | Liquefreeze Company Inc | Insulated container |
US3162566A (en) * | 1962-09-04 | 1964-12-22 | Isadore H Katz | Thermal insulating blanket for concrete curing |
US3240029A (en) * | 1964-05-04 | 1966-03-15 | Gen Motors Corp | Refrigerator cabinets and insulation thereof |
US3357585A (en) * | 1963-01-24 | 1967-12-12 | Union Stock Yard & Transit Co Chicago | Foamed plastic insulation |
US3392864A (en) * | 1965-02-03 | 1968-07-16 | Nasa Usa | Insulation system |
US3695483A (en) * | 1970-11-27 | 1972-10-03 | Louis A Pogorski | Thermal insulation and thermally insulated device |
US3722971A (en) * | 1969-11-06 | 1973-03-27 | Hefendehl H | Plastic box furniture |
US3804481A (en) * | 1972-12-27 | 1974-04-16 | Whirlpool Co | Refrigerator cabinet structure |
US3910658A (en) * | 1974-01-14 | 1975-10-07 | Whirlpool Co | Refrigeration apparatus enclosure structure |
US3913996A (en) * | 1974-01-14 | 1975-10-21 | Whirlpool Co | Refrigeration apparatus enclosure structure |
US3933398A (en) * | 1974-01-14 | 1976-01-20 | Whirlpool Corporation | Refrigeration apparatus enclosure structure |
US3960631A (en) * | 1974-08-30 | 1976-06-01 | Whirlpool Corporation | Method of making a liner construction |
US3989329A (en) * | 1974-01-14 | 1976-11-02 | Whirlpool Corporation | Refrigeration apparatus enclosure structure |
US4050145A (en) * | 1975-08-04 | 1977-09-27 | Whirlpool Corporation | Method of making refrigeration apparatus enclosure structure |
US4139024A (en) * | 1971-07-29 | 1979-02-13 | General Electric Company | Thermal insulation structure |
US4172915A (en) * | 1978-07-31 | 1979-10-30 | American Can Company | Thermal insulation |
US4194329A (en) * | 1976-01-20 | 1980-03-25 | Wendt Alan C | Sound absorbing panels |
US4340630A (en) * | 1980-04-04 | 1982-07-20 | Doty Francis D | Low conductivity gas sealed building insulation |
US4399645A (en) * | 1980-12-15 | 1983-08-23 | Lou Weitz | Bladder insulation |
US4636415A (en) * | 1985-02-08 | 1987-01-13 | General Electric Company | Precipitated silica insulation |
US4675225A (en) * | 1985-04-05 | 1987-06-23 | J.M.J. Technologies Inc. | Thermal insulating blanket |
US4681788A (en) * | 1986-07-31 | 1987-07-21 | General Electric Company | Insulation formed of precipitated silica and fly ash |
US4726974A (en) * | 1986-10-08 | 1988-02-23 | Union Carbide Corporation | Vacuum insulation panel |
US4974382A (en) * | 1989-01-06 | 1990-12-04 | Constructonika, Inc. | Infiltration and energy barrier |
US5018328A (en) * | 1989-12-18 | 1991-05-28 | Whirlpool Corporation | Multi-compartment vacuum insulation panels |
US5044705A (en) * | 1986-11-17 | 1991-09-03 | Soltech, Inc. | Insulation structure for appliances |
US5056279A (en) * | 1987-09-29 | 1991-10-15 | Veldhoen George G | Flat panel and method for fabricating it |
US5082335A (en) * | 1989-12-18 | 1992-01-21 | Whirlpool Corporation | Vacuum insulation system for insulating refrigeration cabinets |
US5091233A (en) * | 1989-12-18 | 1992-02-25 | Whirlpool Corporation | Getter structure for vacuum insulation panels |
US5330816A (en) * | 1992-12-23 | 1994-07-19 | Owens-Corning Fiberglas Technology Inc. | High R super insulation panel |
US5379568A (en) * | 1992-04-13 | 1995-01-10 | Murray; Earl W. | Method and apparatus for providing cellulose-filled insulation batts |
US5408832A (en) * | 1992-06-08 | 1995-04-25 | Saes Getters, S.P.A. | Thermally insulating jacket and related process |
US5505046A (en) * | 1994-01-12 | 1996-04-09 | Marlow Industrie, Inc. | Control system for thermoelectric refrigerator |
US5522216A (en) * | 1994-01-12 | 1996-06-04 | Marlow Industries, Inc. | Thermoelectric refrigerator |
US5605047A (en) * | 1994-01-12 | 1997-02-25 | Owens-Corning Fiberglas Corp. | Enclosure for thermoelectric refrigerator and method |
US6109712A (en) * | 1998-07-16 | 2000-08-29 | Maytag Corporation | Integrated vacuum panel insulation for thermal cabinet structures |
US6128914A (en) * | 1997-04-25 | 2000-10-10 | Sanyo Electric Co., Ltd. | Low temperature storage cabinet |
US6224179B1 (en) * | 1995-05-31 | 2001-05-01 | Bsh Bosch Und Siemens Hausgeraete Gmbh | Heat-insulating housing as well as a household oven and a household refrigerator having the housing |
US6260377B1 (en) | 1999-03-05 | 2001-07-17 | Sanyo Electric Co., Ltd. | Refrigerating apparatus |
US20020074916A1 (en) * | 1999-04-01 | 2002-06-20 | Udo Wenning | Thermally insulating wall |
US20030157284A1 (en) * | 2000-04-21 | 2003-08-21 | Yasuaki Tanimoto | Vacuum insulating material and device using the same |
US20050235682A1 (en) * | 2002-03-13 | 2005-10-27 | Chie Hirai | Refrigerator |
US20060163395A1 (en) * | 2002-08-06 | 2006-07-27 | Akiko Yuasa | Method for recycling thermal insulation material, recycled article and refrigerator |
US20080000258A1 (en) * | 2004-07-29 | 2008-01-03 | Bsh Bosch Und Siemens Hausgerate Gmbh | Multi-Part Refrigerator Body and Method for the Production Thereof |
US20080174147A1 (en) * | 2007-01-24 | 2008-07-24 | Martin Marietta Materials, Inc. | Insulated Composite Body Panel Structure for a Refrigerated Truck Body |
US20110115355A1 (en) * | 2009-11-13 | 2011-05-19 | James Arthur Heckler | Appliance door |
US20110315693A1 (en) * | 2009-05-15 | 2011-12-29 | Whirlpool Corporation | Insulation panels applied to or as a feature module |
US20140329042A1 (en) * | 2011-12-05 | 2014-11-06 | Dow Corning Corporation | Wall Insulation Panel |
US20170096284A1 (en) * | 2014-06-03 | 2017-04-06 | Panasonic Intellectual Property Management Co., Ltd. | Vacuum heat insulating body, and heat insulating container and heat insulating wall employing same |
WO2018208090A1 (en) * | 2017-05-12 | 2018-11-15 | Samsung Electronics Co., Ltd. | Heat insulating material and refrigerator having the same |
US20190257077A1 (en) * | 2011-10-17 | 2019-08-22 | Mark A. Aspenson | Building insulation system |
US10501931B2 (en) | 2015-12-17 | 2019-12-10 | Rockwool International A/S | Method of producing an insulation product and a product obtained by said method |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2966229A (en) * | 1955-02-15 | 1960-12-27 | Grant E Frezieres | Ladder construction |
US2817123A (en) * | 1955-03-24 | 1957-12-24 | Gen Motors Corp | Refrigerating apparatus |
US2863179A (en) * | 1955-06-23 | 1958-12-09 | Gen Motors Corp | Refrigerating apparatus |
US2889078A (en) * | 1955-12-16 | 1959-06-02 | Colgate Palmolive Co | Dispensing container for pressurepropelled products |
US2961030A (en) * | 1957-03-15 | 1960-11-22 | Pan American Petroleum Corp | Vapor barrier for cold surfaces |
US2939811A (en) * | 1957-03-25 | 1960-06-07 | Gen Electric | Heat-insulating units for refrigerator cabinets |
US3039849A (en) * | 1957-06-05 | 1962-06-19 | Du Pont | Aluminum oxide production |
US2834970A (en) * | 1957-08-07 | 1958-05-20 | Nappe Moritz | Sealed pad |
US2961342A (en) * | 1957-08-15 | 1960-11-22 | Gen Electric | Methods of making gas impervious sheet material |
US2927626A (en) * | 1958-02-03 | 1960-03-08 | Robert G Corwin | Insulating blanket for concrete |
US3020183A (en) * | 1959-05-13 | 1962-02-06 | Calvaresi Archie | Protective insulating mat |
US3092530A (en) * | 1959-09-21 | 1963-06-04 | Walter A Plummer | Heat protective sheathing |
US3103042A (en) * | 1959-09-28 | 1963-09-10 | Maquinas Fabricacion Sa De | Structural building element |
US3040539A (en) * | 1960-04-27 | 1962-06-26 | Gen Motors Corp | Refrigerating apparatus |
US3032772A (en) * | 1960-08-02 | 1962-05-08 | Raymond L Fonash | Protective garment for astronauts employing sublimating salts |
US3106307A (en) * | 1960-08-03 | 1963-10-08 | Liquefreeze Company Inc | Insulated container |
US3162566A (en) * | 1962-09-04 | 1964-12-22 | Isadore H Katz | Thermal insulating blanket for concrete curing |
US3357585A (en) * | 1963-01-24 | 1967-12-12 | Union Stock Yard & Transit Co Chicago | Foamed plastic insulation |
US3240029A (en) * | 1964-05-04 | 1966-03-15 | Gen Motors Corp | Refrigerator cabinets and insulation thereof |
US3392864A (en) * | 1965-02-03 | 1968-07-16 | Nasa Usa | Insulation system |
US3722971A (en) * | 1969-11-06 | 1973-03-27 | Hefendehl H | Plastic box furniture |
US3695483A (en) * | 1970-11-27 | 1972-10-03 | Louis A Pogorski | Thermal insulation and thermally insulated device |
US4139024A (en) * | 1971-07-29 | 1979-02-13 | General Electric Company | Thermal insulation structure |
US3804481A (en) * | 1972-12-27 | 1974-04-16 | Whirlpool Co | Refrigerator cabinet structure |
US3910658A (en) * | 1974-01-14 | 1975-10-07 | Whirlpool Co | Refrigeration apparatus enclosure structure |
US3913996A (en) * | 1974-01-14 | 1975-10-21 | Whirlpool Co | Refrigeration apparatus enclosure structure |
US3933398A (en) * | 1974-01-14 | 1976-01-20 | Whirlpool Corporation | Refrigeration apparatus enclosure structure |
US3989329A (en) * | 1974-01-14 | 1976-11-02 | Whirlpool Corporation | Refrigeration apparatus enclosure structure |
US3960631A (en) * | 1974-08-30 | 1976-06-01 | Whirlpool Corporation | Method of making a liner construction |
US4050145A (en) * | 1975-08-04 | 1977-09-27 | Whirlpool Corporation | Method of making refrigeration apparatus enclosure structure |
US4194329A (en) * | 1976-01-20 | 1980-03-25 | Wendt Alan C | Sound absorbing panels |
US4172915A (en) * | 1978-07-31 | 1979-10-30 | American Can Company | Thermal insulation |
US4340630A (en) * | 1980-04-04 | 1982-07-20 | Doty Francis D | Low conductivity gas sealed building insulation |
US4399645A (en) * | 1980-12-15 | 1983-08-23 | Lou Weitz | Bladder insulation |
US4636415A (en) * | 1985-02-08 | 1987-01-13 | General Electric Company | Precipitated silica insulation |
US4675225A (en) * | 1985-04-05 | 1987-06-23 | J.M.J. Technologies Inc. | Thermal insulating blanket |
US4681788A (en) * | 1986-07-31 | 1987-07-21 | General Electric Company | Insulation formed of precipitated silica and fly ash |
EP0263511A2 (en) * | 1986-10-08 | 1988-04-13 | Union Carbide Corporation | Vacuum insulation panel |
US4726974A (en) * | 1986-10-08 | 1988-02-23 | Union Carbide Corporation | Vacuum insulation panel |
EP0263511A3 (en) * | 1986-10-08 | 1988-08-24 | Union Carbide Corporation | Vacuum insulation panel |
US5044705A (en) * | 1986-11-17 | 1991-09-03 | Soltech, Inc. | Insulation structure for appliances |
US5056279A (en) * | 1987-09-29 | 1991-10-15 | Veldhoen George G | Flat panel and method for fabricating it |
US4974382A (en) * | 1989-01-06 | 1990-12-04 | Constructonika, Inc. | Infiltration and energy barrier |
US5018328A (en) * | 1989-12-18 | 1991-05-28 | Whirlpool Corporation | Multi-compartment vacuum insulation panels |
US5082335A (en) * | 1989-12-18 | 1992-01-21 | Whirlpool Corporation | Vacuum insulation system for insulating refrigeration cabinets |
US5091233A (en) * | 1989-12-18 | 1992-02-25 | Whirlpool Corporation | Getter structure for vacuum insulation panels |
US5379568A (en) * | 1992-04-13 | 1995-01-10 | Murray; Earl W. | Method and apparatus for providing cellulose-filled insulation batts |
USRE42467E1 (en) | 1992-06-08 | 2011-06-21 | Saes Getters S.P.A. | Thermally insulating jacket and related process |
US5408832A (en) * | 1992-06-08 | 1995-04-25 | Saes Getters, S.P.A. | Thermally insulating jacket and related process |
US5330816A (en) * | 1992-12-23 | 1994-07-19 | Owens-Corning Fiberglas Technology Inc. | High R super insulation panel |
US5522216A (en) * | 1994-01-12 | 1996-06-04 | Marlow Industries, Inc. | Thermoelectric refrigerator |
US5605047A (en) * | 1994-01-12 | 1997-02-25 | Owens-Corning Fiberglas Corp. | Enclosure for thermoelectric refrigerator and method |
US5505046A (en) * | 1994-01-12 | 1996-04-09 | Marlow Industrie, Inc. | Control system for thermoelectric refrigerator |
US6224179B1 (en) * | 1995-05-31 | 2001-05-01 | Bsh Bosch Und Siemens Hausgeraete Gmbh | Heat-insulating housing as well as a household oven and a household refrigerator having the housing |
US6128914A (en) * | 1997-04-25 | 2000-10-10 | Sanyo Electric Co., Ltd. | Low temperature storage cabinet |
US6109712A (en) * | 1998-07-16 | 2000-08-29 | Maytag Corporation | Integrated vacuum panel insulation for thermal cabinet structures |
US6260377B1 (en) | 1999-03-05 | 2001-07-17 | Sanyo Electric Co., Ltd. | Refrigerating apparatus |
US20020074916A1 (en) * | 1999-04-01 | 2002-06-20 | Udo Wenning | Thermally insulating wall |
US7645003B2 (en) * | 1999-04-01 | 2010-01-12 | Bsh Bosch Und Siemens Hausgeraete Gmbh | Thermally insulating wall |
US6938968B2 (en) * | 2000-04-21 | 2005-09-06 | Matsushita Refrigeration Company | Vacuum insulating material and device using the same |
US20030157284A1 (en) * | 2000-04-21 | 2003-08-21 | Yasuaki Tanimoto | Vacuum insulating material and device using the same |
US20050235682A1 (en) * | 2002-03-13 | 2005-10-27 | Chie Hirai | Refrigerator |
US7278279B2 (en) * | 2002-03-13 | 2007-10-09 | Matsushita Refrigeration Co. | Refrigerator |
US20060163395A1 (en) * | 2002-08-06 | 2006-07-27 | Akiko Yuasa | Method for recycling thermal insulation material, recycled article and refrigerator |
US20080000258A1 (en) * | 2004-07-29 | 2008-01-03 | Bsh Bosch Und Siemens Hausgerate Gmbh | Multi-Part Refrigerator Body and Method for the Production Thereof |
US20080174147A1 (en) * | 2007-01-24 | 2008-07-24 | Martin Marietta Materials, Inc. | Insulated Composite Body Panel Structure for a Refrigerated Truck Body |
US8342588B2 (en) * | 2007-01-24 | 2013-01-01 | Martin Marietta Materials, Inc. | Insulated composite body panel structure for a refrigerated truck body |
US20110315693A1 (en) * | 2009-05-15 | 2011-12-29 | Whirlpool Corporation | Insulation panels applied to or as a feature module |
US8726690B2 (en) * | 2009-05-15 | 2014-05-20 | Whirlpool Corporation | Insulation panels applied to or as a feature module |
US20110115355A1 (en) * | 2009-11-13 | 2011-05-19 | James Arthur Heckler | Appliance door |
US8714672B2 (en) * | 2009-11-13 | 2014-05-06 | Fisher & Paykel Appliances Limited | Appliance door |
US20190257077A1 (en) * | 2011-10-17 | 2019-08-22 | Mark A. Aspenson | Building insulation system |
US20140329042A1 (en) * | 2011-12-05 | 2014-11-06 | Dow Corning Corporation | Wall Insulation Panel |
US20170096284A1 (en) * | 2014-06-03 | 2017-04-06 | Panasonic Intellectual Property Management Co., Ltd. | Vacuum heat insulating body, and heat insulating container and heat insulating wall employing same |
US10501931B2 (en) | 2015-12-17 | 2019-12-10 | Rockwool International A/S | Method of producing an insulation product and a product obtained by said method |
WO2018208090A1 (en) * | 2017-05-12 | 2018-11-15 | Samsung Electronics Co., Ltd. | Heat insulating material and refrigerator having the same |
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