CA1054326A - Air-containing insulating sheet - Google Patents
Air-containing insulating sheetInfo
- Publication number
- CA1054326A CA1054326A CA282,139A CA282139A CA1054326A CA 1054326 A CA1054326 A CA 1054326A CA 282139 A CA282139 A CA 282139A CA 1054326 A CA1054326 A CA 1054326A
- Authority
- CA
- Canada
- Prior art keywords
- sheet
- strips
- air
- layers
- hermetically sealed
- 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
Links
- 238000005192 partition Methods 0.000 claims abstract description 17
- 229920002457 flexible plastic Polymers 0.000 claims abstract description 6
- 238000004891 communication Methods 0.000 claims abstract description 3
- 239000002985 plastic film Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 229920000136 polysorbate Polymers 0.000 claims description 2
- 239000010410 layer Substances 0.000 abstract description 23
- 238000009413 insulation Methods 0.000 abstract description 6
- 239000004033 plastic Substances 0.000 abstract description 4
- 229920003023 plastic Polymers 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000002356 single layer Substances 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- KUVIULQEHSCUHY-XYWKZLDCSA-N Beclometasone Chemical compound C1CC2=CC(=O)C=C[C@]2(C)[C@]2(Cl)[C@@H]1[C@@H]1C[C@H](C)[C@@](C(=O)COC(=O)CC)(OC(=O)CC)[C@@]1(C)C[C@@H]2O KUVIULQEHSCUHY-XYWKZLDCSA-N 0.000 description 1
- 241000212384 Bifora Species 0.000 description 1
- 241000272470 Circus Species 0.000 description 1
- ZAKOWWREFLAJOT-CEFNRUSXSA-N D-alpha-tocopherylacetate Chemical compound CC(=O)OC1=C(C)C(C)=C2O[C@@](CCC[C@H](C)CCC[C@H](C)CCCC(C)C)(C)CCC2=C1C ZAKOWWREFLAJOT-CEFNRUSXSA-N 0.000 description 1
- 210000004712 air sac Anatomy 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 101150008563 spir gene Proteins 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/78—Heat insulating elements
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
An air-containing sheet useful for insulation and other purposes, as well as a method of making such a sheet, is provided. The sheet comprises a pair of spaced, air-impervious layers, for example of flexible plastic, having outer edges. The sheets are hermetically sealed about these edges. The sheet has inlet-outlet means for inflation or deflation of the sheet. A series of spaced parallel partitions extending between and secured to opposite layers, divides the space between the sheets into sections. Air-communication means associated with the partitions, permits passage of air between adjacent sections.
Such a sheet permits a single layer of air to be held between two layers of plastic, with no seam of plastic being exposed to both sides of the sheet as in conventional air-containing sheets.
An air-containing sheet useful for insulation and other purposes, as well as a method of making such a sheet, is provided. The sheet comprises a pair of spaced, air-impervious layers, for example of flexible plastic, having outer edges. The sheets are hermetically sealed about these edges. The sheet has inlet-outlet means for inflation or deflation of the sheet. A series of spaced parallel partitions extending between and secured to opposite layers, divides the space between the sheets into sections. Air-communication means associated with the partitions, permits passage of air between adjacent sections.
Such a sheet permits a single layer of air to be held between two layers of plastic, with no seam of plastic being exposed to both sides of the sheet as in conventional air-containing sheets.
Description
BACKGR~UND OF THE INVEN~ION
The presen~ invention relates to an air-filled or air-containing structure, and more particularly concerns an air-containing sheet which may be used for example for insulation purposes.
~ :Lr-fllled or alr-cor-ta:ln~ng s~ruct(lres :Ln which sections or pockets o:E ~:Lr n-re ma:Lntained bet~een air~ pervl~ous ].ayers, h~.rrnetically sealed along ~he:Lr edges, are well known. Examples o:E such known structures are described and lllustrated ln Unlted States Patent No~ 1,976,7g3 of Man:Eold, issued October 16, 1934; United States Patent No. 2,369,736 of Hurt, issued February 20, 1945; United States Patent No. 2,73i,652 of Bishop, issued ~anuary 24, 1956;
Canadian Patent No. 16,643 of Heath, i~ssued April 11, 1883; Canadian Patent No. 791,902 of Arp, issued August 13, 19.68 and Carnadian Patent No. 289,886 of Alphonin, is&ued ~ay 28, 1929.
It is common, in constructing air-containing sheets for insulation or other purposes, to provIde two oppo$ed sheets, for example of plastic, sealed along seams to provide communicating air-pockets or air-$acs of an appropriate configuration. Such structures, however, may be inappropriate for insulation in that they permit heat transfer or loss along the seam, the structure being es&entially of very little thickness at that point and not being surrounded there by a pocket of "dead air" a$ is the case with the plastic sheet circu.~scribing the air-pockets ur air-sacs.
It is an object of the present invention to provide a n~yel structure for an air-containing sheet which-is readily and econ~omically~ manufactured. It is a further object of the present inyentiQn to proyide such a plastic sheet which affords improved insulation character~st~cs over known air-containing sheets having single layers of air-pockets.
SUMMAR~ OF THE~INVENT~ON
In accordance w~th the inyent~on, an air.containing sheet i$ P~ovided comprising a pair of $paced, air-~i~pery~i~ou~s. layer$, p~eferably P~ polyethylene ,30 or other flex~kle plastic sheet mateTial~ The sheets a2e ~èrmet~cally sealed ~ ;~
;` abQut t~e~r outer edges~ ~nlet~outlet ~eàn$ are provided for inflat~on or deflation of the sheè~. A .s.ex~es Qf sp~ced, paralle~ parti~tions e~tend~ng be-: - ~ ~ :, :,: ' 321~
tween and secured to opposite layers divides the space between sheets into sections. Air-communication means associated with the partitions, permits passage of air between adjacent sections.
One of ~he layers is a unitary sheet of flexible plastic material and the other layer and partLtions are Eormed Erom a series of contiguo-ls strLps o~ ELexlbLe plastLc sheets, one sLde of each strip beLng sealed to the same sLde o~ the ~mltary sheet at a position spaced from adjacent strips, and the other s~de of each strip being hermetica:lly sealed in uniform fashion along a central portion of an ad~acent strip, the outside strips of the series of such strips each having both sides sealed to the unitary sheet, the ends of all such strips being hermetically sealed to the unitary sheet, a portion of each of the contiguous strips constituting the layer opposite from the unitary sheet, and another portion of each of the strips constituting a partition.
Because the spaced layers do not come together to form a seam, the problem of heat loss along such seam is avoided according to the present in-vention.
There is also provided a method of making an air-containing sheet having a pair of spaced layers with inlet-outlet means therein for inflating or deflating the sheet and a series of spaced, parallel partitions extending between and secured to opposite layers and having therein means to permit passage of air through the partitions comprising hermetically sealing by fusing ;
the sides of strips of flexible air-impervious plastic sheet material to central portions of adjacent strips in uniform fashion, and hermetically sealing the ends of these strips by fusion.
BRIEF DESCEIPTION OF THE DRAWINGS
Other objects and advantages of the invention, and example construc-tions thereof, will become apparent upon reading the following detailed des-cription and upon referring to the drawings in which~
Figures 1 and 2 are schematic view~of two example embodiments of air-containing sheets according to the present invention.
Similar features in the drawings have been given similar reference numerals.
~ - 2 .
5~326 While the invention will be described in connection with example embodiments, it will be understood that it is not intended to limit the in-vention to thoseembodiments. On the contrary, it ls intended to cover all alter-natives, modifications and equivalents as may be included w:Lthin the spirit and scope of the invention as defined by the appended claims.
DE'rAIT.ED DESCRIPTION OF THE INVENTION
Turnlng fLrst to Figure 1 there is shown an air-containing sheet 2 according to the present invention comprising spaced, air-impervious layers 4 and 6 made, for example, from polyethylene or an appropriate flexible plastic sheet material. Outer edges of the sheets are fused together along seam line 8 to form a hermetic seal about the edge of the structure. Any suitable inlet-outlet means lO is provided for inflating or deflating the sheet. A series of spaced partitions 12 extend parallel between and secured to opposite layers 4 and 6, dividing the space between sheets into sections 14. Holes 16 in parti-tions 12 permit air to pass between ad~acent sections 14 within the structure.
If desired, although not illustrated, any appropriate number of inlet-outlet means may be provided to service a particular number of sections`of the air-containing sheet, the sections possibly being kept sealed from other sections .,. . ~
-:
' - ,.
~5~3'~ ~
in the structure by an appropriate par~ition 12 haying no hQL,es or other co~munication means. The part~tipns preferably extend obli~uely between layers 4 and 6, and are made of flexi~bL,e plastic material similar to that of~ ~' the layers so that they can be readily sealed or fused to the layers or to each other.
As .qhown -in Figure 1, layer 4 may be a unitary sheet 18, with a serLe~ of contLguolls strips 20, appropriately secured to sheet 18, make up layer 6 and partition 12, the sides of these strips being appropriately sealed to central portions of adjacent strips~as i:Llustrated.
In the embodiment of ~igure 2, instead of hav,ing one L,ayer being a , unitary sheet 18, both layers 4 and 6, as~ well as parti~tions 12, are formed from continguous strips 20 as shown. Except for strips making up the sides of the device, each strip 20 has a side portion making up part of layer 4, the ' other side portion making up pair of'layers 6 and a central portion constitut-ing a partition 12.
In this way, a construction of air-filled sheet is provided whi~h combines effective internal support (from spaced partition 12) with effectiye insulation qualities because layers 4 and 6 a,re at all ti~es across the sheet `~
' separated by a dead air space and seams, where layers 4 and 6 are ~oined to-, 20 gether are avoided. Such structure may~ be readily constructed to appropriate ,' ` dimensions at a job-site, for exa,mple ~here a temporary insulating blanket is ~ ;
required about a construction area or to cover a swrmming pool. ~-Thus it is-apparent that there has been provided in accordance with the invention, an ai~-containing s,heet that fully satisfies the ob~ects, aims '~
and advantages set forth above. ~hile the invention has been described in ~ -conjunction with specific embodiments thereof, it is evident that many alter- ' natives, modifications and variations will be apparent to those skilled in , ` the art in light of the forego~ng description. Accordingly ~it is intended to `` e~brace all ,suçh alternati~yes~ Qd~i~,fi~ca,~ p"~n,s ,a,nd Ya~ ,a,t~iQns~s~ f,a,~l ~ithin the spir~it and brQad ScQpe o,f the appen~ed $~a,~ims,~.
,'': ,.-:
, ~,: '.
- 3 - ,~ ,,`
., .~ .
, '
The presen~ invention relates to an air-filled or air-containing structure, and more particularly concerns an air-containing sheet which may be used for example for insulation purposes.
~ :Lr-fllled or alr-cor-ta:ln~ng s~ruct(lres :Ln which sections or pockets o:E ~:Lr n-re ma:Lntained bet~een air~ pervl~ous ].ayers, h~.rrnetically sealed along ~he:Lr edges, are well known. Examples o:E such known structures are described and lllustrated ln Unlted States Patent No~ 1,976,7g3 of Man:Eold, issued October 16, 1934; United States Patent No. 2,369,736 of Hurt, issued February 20, 1945; United States Patent No. 2,73i,652 of Bishop, issued ~anuary 24, 1956;
Canadian Patent No. 16,643 of Heath, i~ssued April 11, 1883; Canadian Patent No. 791,902 of Arp, issued August 13, 19.68 and Carnadian Patent No. 289,886 of Alphonin, is&ued ~ay 28, 1929.
It is common, in constructing air-containing sheets for insulation or other purposes, to provIde two oppo$ed sheets, for example of plastic, sealed along seams to provide communicating air-pockets or air-$acs of an appropriate configuration. Such structures, however, may be inappropriate for insulation in that they permit heat transfer or loss along the seam, the structure being es&entially of very little thickness at that point and not being surrounded there by a pocket of "dead air" a$ is the case with the plastic sheet circu.~scribing the air-pockets ur air-sacs.
It is an object of the present invention to provide a n~yel structure for an air-containing sheet which-is readily and econ~omically~ manufactured. It is a further object of the present inyentiQn to proyide such a plastic sheet which affords improved insulation character~st~cs over known air-containing sheets having single layers of air-pockets.
SUMMAR~ OF THE~INVENT~ON
In accordance w~th the inyent~on, an air.containing sheet i$ P~ovided comprising a pair of $paced, air-~i~pery~i~ou~s. layer$, p~eferably P~ polyethylene ,30 or other flex~kle plastic sheet mateTial~ The sheets a2e ~èrmet~cally sealed ~ ;~
;` abQut t~e~r outer edges~ ~nlet~outlet ~eàn$ are provided for inflat~on or deflation of the sheè~. A .s.ex~es Qf sp~ced, paralle~ parti~tions e~tend~ng be-: - ~ ~ :, :,: ' 321~
tween and secured to opposite layers divides the space between sheets into sections. Air-communication means associated with the partitions, permits passage of air between adjacent sections.
One of ~he layers is a unitary sheet of flexible plastic material and the other layer and partLtions are Eormed Erom a series of contiguo-ls strLps o~ ELexlbLe plastLc sheets, one sLde of each strip beLng sealed to the same sLde o~ the ~mltary sheet at a position spaced from adjacent strips, and the other s~de of each strip being hermetica:lly sealed in uniform fashion along a central portion of an ad~acent strip, the outside strips of the series of such strips each having both sides sealed to the unitary sheet, the ends of all such strips being hermetically sealed to the unitary sheet, a portion of each of the contiguous strips constituting the layer opposite from the unitary sheet, and another portion of each of the strips constituting a partition.
Because the spaced layers do not come together to form a seam, the problem of heat loss along such seam is avoided according to the present in-vention.
There is also provided a method of making an air-containing sheet having a pair of spaced layers with inlet-outlet means therein for inflating or deflating the sheet and a series of spaced, parallel partitions extending between and secured to opposite layers and having therein means to permit passage of air through the partitions comprising hermetically sealing by fusing ;
the sides of strips of flexible air-impervious plastic sheet material to central portions of adjacent strips in uniform fashion, and hermetically sealing the ends of these strips by fusion.
BRIEF DESCEIPTION OF THE DRAWINGS
Other objects and advantages of the invention, and example construc-tions thereof, will become apparent upon reading the following detailed des-cription and upon referring to the drawings in which~
Figures 1 and 2 are schematic view~of two example embodiments of air-containing sheets according to the present invention.
Similar features in the drawings have been given similar reference numerals.
~ - 2 .
5~326 While the invention will be described in connection with example embodiments, it will be understood that it is not intended to limit the in-vention to thoseembodiments. On the contrary, it ls intended to cover all alter-natives, modifications and equivalents as may be included w:Lthin the spirit and scope of the invention as defined by the appended claims.
DE'rAIT.ED DESCRIPTION OF THE INVENTION
Turnlng fLrst to Figure 1 there is shown an air-containing sheet 2 according to the present invention comprising spaced, air-impervious layers 4 and 6 made, for example, from polyethylene or an appropriate flexible plastic sheet material. Outer edges of the sheets are fused together along seam line 8 to form a hermetic seal about the edge of the structure. Any suitable inlet-outlet means lO is provided for inflating or deflating the sheet. A series of spaced partitions 12 extend parallel between and secured to opposite layers 4 and 6, dividing the space between sheets into sections 14. Holes 16 in parti-tions 12 permit air to pass between ad~acent sections 14 within the structure.
If desired, although not illustrated, any appropriate number of inlet-outlet means may be provided to service a particular number of sections`of the air-containing sheet, the sections possibly being kept sealed from other sections .,. . ~
-:
' - ,.
~5~3'~ ~
in the structure by an appropriate par~ition 12 haying no hQL,es or other co~munication means. The part~tipns preferably extend obli~uely between layers 4 and 6, and are made of flexi~bL,e plastic material similar to that of~ ~' the layers so that they can be readily sealed or fused to the layers or to each other.
As .qhown -in Figure 1, layer 4 may be a unitary sheet 18, with a serLe~ of contLguolls strips 20, appropriately secured to sheet 18, make up layer 6 and partition 12, the sides of these strips being appropriately sealed to central portions of adjacent strips~as i:Llustrated.
In the embodiment of ~igure 2, instead of hav,ing one L,ayer being a , unitary sheet 18, both layers 4 and 6, as~ well as parti~tions 12, are formed from continguous strips 20 as shown. Except for strips making up the sides of the device, each strip 20 has a side portion making up part of layer 4, the ' other side portion making up pair of'layers 6 and a central portion constitut-ing a partition 12.
In this way, a construction of air-filled sheet is provided whi~h combines effective internal support (from spaced partition 12) with effectiye insulation qualities because layers 4 and 6 a,re at all ti~es across the sheet `~
' separated by a dead air space and seams, where layers 4 and 6 are ~oined to-, 20 gether are avoided. Such structure may~ be readily constructed to appropriate ,' ` dimensions at a job-site, for exa,mple ~here a temporary insulating blanket is ~ ;
required about a construction area or to cover a swrmming pool. ~-Thus it is-apparent that there has been provided in accordance with the invention, an ai~-containing s,heet that fully satisfies the ob~ects, aims '~
and advantages set forth above. ~hile the invention has been described in ~ -conjunction with specific embodiments thereof, it is evident that many alter- ' natives, modifications and variations will be apparent to those skilled in , ` the art in light of the forego~ng description. Accordingly ~it is intended to `` e~brace all ,suçh alternati~yes~ Qd~i~,fi~ca,~ p"~n,s ,a,nd Ya~ ,a,t~iQns~s~ f,a,~l ~ithin the spir~it and brQad ScQpe o,f the appen~ed $~a,~ims,~.
,'': ,.-:
, ~,: '.
- 3 - ,~ ,,`
., .~ .
, '
Claims (2)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. An air-containing sheet comprising:
(a) a pair of air-impervious layers having outer edges, the sheets being hermetically sealed about these edges;
(b) inlet-outlet means for inflation or deflation of the sheet;
(c) a series of spaced parallel partitions extending be-tween and secured to opposite layers dividing the space between sheets into sections;
(d) air communication means associated with the partitions to permit passage of air between adjacent sections within the sheet;
one of the layers being a unitary sheet of flexible plastic material and the other layer and partitions being formed from a series of contiguous strips of flexible plastic sheets, one side of each strip being sealed to the same side of the unitary sheet at a position spaced from adjacent strips, and the other side of each strip being hermetically sealed in uniform fashion along a central portion of an adjacent strip, the outside strips of the series of such strips each having both sides sealed to the unitary sheet, the ends of all such strips being hermetically sealed to the unitary sheet, a portion of each of the contiguous strips constituting the layer opposite from the unitary sheet, and another portion of each of the strips constituting a partition.
(a) a pair of air-impervious layers having outer edges, the sheets being hermetically sealed about these edges;
(b) inlet-outlet means for inflation or deflation of the sheet;
(c) a series of spaced parallel partitions extending be-tween and secured to opposite layers dividing the space between sheets into sections;
(d) air communication means associated with the partitions to permit passage of air between adjacent sections within the sheet;
one of the layers being a unitary sheet of flexible plastic material and the other layer and partitions being formed from a series of contiguous strips of flexible plastic sheets, one side of each strip being sealed to the same side of the unitary sheet at a position spaced from adjacent strips, and the other side of each strip being hermetically sealed in uniform fashion along a central portion of an adjacent strip, the outside strips of the series of such strips each having both sides sealed to the unitary sheet, the ends of all such strips being hermetically sealed to the unitary sheet, a portion of each of the contiguous strips constituting the layer opposite from the unitary sheet, and another portion of each of the strips constituting a partition.
2. A sheet according to claim 1, wherein both of the layers and the partitions therebetween are formed from a series of contig-uous strips of flexible plastic sheet material, opposite sides of intermediate strips being hermetically sealed to opposite surfaces of central portions of adjacent strips, in uniform fashion, the outside strips of the series each being hermetically sealed to an adjacent strip thereto and the ends of the strips being hermetically sealed together to provide the air-containing sheet, each of the intermediate strips having portions which constitute a partition and part of the spaced layers of the air-containing sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA282,139A CA1054326A (en) | 1977-07-06 | 1977-07-06 | Air-containing insulating sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA282,139A CA1054326A (en) | 1977-07-06 | 1977-07-06 | Air-containing insulating sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1054326A true CA1054326A (en) | 1979-05-15 |
Family
ID=4109074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA282,139A Expired CA1054326A (en) | 1977-07-06 | 1977-07-06 | Air-containing insulating sheet |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1054326A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2944105A1 (en) * | 1979-10-31 | 1981-07-23 | Otto Ing.(grad.) 8263 Burghausen Dombkowski | Heat insulating elements - made of deep drawn foils with carbon di:oxide filling |
| WO1988000630A1 (en) * | 1986-07-17 | 1988-01-28 | Rosendal Goesta | Web-like fill element |
-
1977
- 1977-07-06 CA CA282,139A patent/CA1054326A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2944105A1 (en) * | 1979-10-31 | 1981-07-23 | Otto Ing.(grad.) 8263 Burghausen Dombkowski | Heat insulating elements - made of deep drawn foils with carbon di:oxide filling |
| WO1988000630A1 (en) * | 1986-07-17 | 1988-01-28 | Rosendal Goesta | Web-like fill element |
| US4960625A (en) * | 1986-07-17 | 1990-10-02 | Rosendahl Goesta | Web-like fill element |
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