CA1078207A - Relating to the construction of houses or similar buildings by means of an inflatable structure - Google Patents
Relating to the construction of houses or similar buildings by means of an inflatable structureInfo
- Publication number
- CA1078207A CA1078207A CA272,138A CA272138A CA1078207A CA 1078207 A CA1078207 A CA 1078207A CA 272138 A CA272138 A CA 272138A CA 1078207 A CA1078207 A CA 1078207A
- Authority
- CA
- Canada
- Prior art keywords
- pressure chamber
- zone
- membrane
- fixed
- pressure
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/04—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for structures of spherical, spheroid or similar shape, or for cupola structures of circular or polygonal horizontal or vertical section; Inflatable forms
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/04—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for structures of spherical, spheroid or similar shape, or for cupola structures of circular or polygonal horizontal or vertical section; Inflatable forms
- E04G11/045—Inflatable forms
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H15/00—Tents or canopies, in general
- E04H15/20—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Tents Or Canopies (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
ABSTRACT OF DISCLOSURE
An inflatable and supporting structure for the construction of houses or similar buildings is described having an envelope formed by an upper membrane and a lower membrane which are connected hermetically to one another to form a first pressure chamber forming said envelope, and a second pressure chamber fixed to the basis of said first pressure chamber. Both pressure chambers are inflated to different pressure chambers, the first pressure chamber being always inflated to a lower pressure than the second pressure chamber.
An inflatable and supporting structure for the construction of houses or similar buildings is described having an envelope formed by an upper membrane and a lower membrane which are connected hermetically to one another to form a first pressure chamber forming said envelope, and a second pressure chamber fixed to the basis of said first pressure chamber. Both pressure chambers are inflated to different pressure chambers, the first pressure chamber being always inflated to a lower pressure than the second pressure chamber.
Description
~0'78'~07 The invention concerns an infla~able and supporting structure for the construction of houses or similar buildings.
In constructing houses or similar buildings framings are used for the concrete. Different types of framings are known for casting concrete.
A particular method of construction consists in the utilization of the spraying of cement, plaster, concrete or similar materials according to the Torcret - system onto a supporting structure to form the walls and the roof of the house or the building to be constructed. It has been propesed to use as supporting structure for this method an inflatable structure, that means a kind of envelope anchored to the ground on wh~h the materials used for the construction are sprayed according to the Torcrete_ system. The anchoring of the inflataDle structure cons~itutes however a ~ig disadvantage and limits the mobility ~nd use of this method of constructing.
The object of the present invention is to provide for the construction of houses or similar buildings an inflatable and supporting structure which does not have the disadvantages of the known structures of the s~oe type and which constitutes a stable framing which does not require any anchoring to the ground and which is therefore ver~ variaBle in its ~ilization.
According to the invention this ob;ect is achieved in that the inflatable and supporting structure comprises an upper membrane and an inner membrane her~etically fixed to one another to form a first inflatable pressure chamber forming said inflatable envelope, a second inf~atable pressure chamber fixed to the base of said ~irst pressure chamber, said - 107B'~U7 pressure chambers being formed of a material enabling their utilization as support and framing in construc~ing houses or similar buildings from concrete or similar or analogous materials and inthat said first prssure chamber is inflated to a pressure lower than that of the second pressure chamber.
The second pressure chamber may advantageously be arranged below the first pressure chamber and/or at the periphery thereof.
The pressure chambers may be fixed to one another by wel-ding. Said upper membrane may be welded to said second ;
pressure chamber; said inner membrane may be welded to said second pressure chamber. ; The upper membrane may be fixed to said second pressure chamber along a first fixing line or zone said inner membrane may be ~ixed to said second pressure chamber along a second fixing line or zone at a predetermined distance from said first fixing line or zone and the dimension of said upper membrane between its fixing lines or zonessis larger than the dimension of said inner membrane between its fixing ~ines or zones.
According to a preferred embodiment of the invention said upper and inner membranes may have a substantially circular shape and said second pressure chamber may have the form of a circular hose having a circular cross-section. The shape of the membranes may be triangular, quadrilateral or polygonal.
The second pressure chamber may have an annular shape similar to the shape of the first pressure chamDer.
The invention wlll now be described with reference to the enclosed drawing representing in cross-section a preferred embodiment of the inflatable and supporting structure according to the~n~ention, ~078Z07 In the drawing an inflatable and supporting structure 10 comprises an upper membrane 12 and a lower membrane 14 which are hermetically connected to one another to form a first pressure chamber 16. Means are provided to inflate said first pressure chamber 16 and to maintain it at the desired pressure.
A second pressure chamber 18 is fixed to said first pressure chamber 16. Means are also provided to inflate said second pressure chamber 18 and to maintain it at the desired pressure. The second pressure chamber is arranged at the base of said first pressure chamber 16 and supporte the same at its periphery. To this effect the upper membrane 12 is connected to said second pressure chamber along a peripheral zone or line 20 and the inner membrane 14 is connected to said second pressure chamber 18 along a peripheral zone or line 22 to form said first pressure chamber 16.
The particular form of the pressure chambers 16 and 18 depends on the particular utilization thereof and does not form a decisive feature of the invention, ~but it i8 selected as a function o~ the construction to be realized and besides the circular and oblongue shapes, the membranes may be polygonal or takenany arbitrary geometrical ~orm.
The material utilized for preparing the pressure chambers are not critical. It is sufficient that the materials be ad~pted for utilization in constructing houses or similar buildings by using the spraying of cement, plaster, concrete or similar materials according to the Torcret - system, that means that the membranes resist to the impact of these materials, may support the load created by their accumulation on the structure and may be easily separated from said 1~7821)7 materials after hardening.
The pressure chambers and the membrane may be fixed to ;~
one another by bonding, welding, etc. depanding on the materials utilized for preparing the inflatable and suppor-ting structure.
When constructing houses or similar buildings by using the inflatable and supporting structure according to the invention, this structure is placed on the ground 22. The first pressure chamber 16 is than inflated to the desired pressure as is also the second pressure chamber 18. The first pressure chamber 16 is ~nflated to the pressure Pl and the second pressure chamber 18 is inflated to the pressure P2.
The pressure P2 is always higher ~han pressure Pl. The fact of using different pressures in both pressure chambers 16 and 18 ensures a reciprocal stabilization of both the pneumatic systems each formed by one of the pressure chambers 16 and 18.
The pressure P2 in the second pressure chamber 18 acts against the pressure Pl in the first pressure chamber and has a neutralization and stabilization effect 60 as to enable the utili-zation of the inflatable and supporting structure accordingto the invention without special anchoring to the ground. Thus the desired total mobility and liberty of action are bobtained.
The inflatable structures having a single pressurecchamber require anchoring on the ground due to their tendency to float on the ~rou~d. The addition of a second pressure chamber at the basis o~ the first pressure chamber creates through the cooperation of both pressure chambers inflated to different pressures a stabilizing force acting on the inflatable structure to stabiliæe the structure on the ground and to so avoid the necessity of anchoring the structure on the ground , . . . ~ . .
~-- 1078Z07 during utilization. The stabilizing effect of the stabili-zing force is amplified if the fixing line or zone 20 of the upper membrane 12 to the second pressure chamber 18 is located at a certain distance from the fixing line or zone 22 of the inner membrane 14 to the second pressure chamber and if ,the dimension of the upper membrane between its fixing lines o~ ~ones 20 with the second pressure chamber 18 is larger than the dimension of the inner membrane 14 between its fixing lines or zones 22 with the second pressure chamber 18.
In the preferred embodiment of the inflatable and supporting ~-structure according to the invention th'e upper and inner membranes 12, 14 have a substantially circular shape. The second pressure chamber 18 has the shape of a circular hose having a circular cross-section.
In another preferred embodiment of the invention the inflatable and supporting structure consists of a first oblongue elongated chamber 16 under ~hich a second chamber having a similar shape ~s arranged so that this structure may be used to construct a tunnel.
The:upper~,and inner membranes 12, 14 forming the first pressure chamber 16 may also have a substantially triangular, quadrilateral or polygonal shape, the second pressure chamber 18 having then the shape of a similar ring at the periphery of the first pressure chamber 16.
In summary, the shape of the first pressure chamber 16 and of the second pressure chamber 18 is not a decisive feature of the invention. A mix~ure of water and cement, plaster and /
or a similar material and/or concrete is sprayed onto the supporting structure obtained by inflating the pressure chambers to different pressures until a layer of desired - -thickness is obtained. The layer so obtained is allowed to dry and the pressure chamber 16 and 18 of the inflatable and supporting structure are deflated after hardening and the structure is removed. Depending on the supporting structure which has been utilized, a struc~ure of cement, plaster and/or a similar material and/or concrete is obtained forming the roof and the walls of the house, when an inflatable and supporting structure having a circular, tr~ngular, quadrilateral ~r po~ygonal shape is used, or a tunnel, when an oblongue inflatable and supporting structure is used. So, many structural shapes may be obtained using inflatable and supporting structure according to the inventionhavlng an appropriate shape.
It is obvious that means may be used on the inflatable strucgures where openings are desired in the building for windows, doors, ventilation or for grouping different rooms of a housing in order to avoid that the layer of cement, plaster, etc. if formed on these places. These means may be the frames of doors and windows which, after hardening of the sprayed layer, remain in the layer and are anchored therein.
When constructing a house having several rooms, the same inflatable structure may be used fDr all rooms, or depending on the size and shape of the roomsi, different structures may be used. The finnished houses and buildings may be covered by means of soil to which a binder has been added; this forms a good insulationoof the housing and adapts it to the environment.
The pressures utilized in both pressure chambers 16 and 18 are not critical, but the second pressure chamber 18 must always be inflated to a higher pressure than the first - 1~78Z07 pressure chamber 16. The absolute value of the pressures used depends on t~le size of the pressure chambers 16 and 18 of the inflatable structure , the construction materials sprayed according to the Torcret - process on the structure to construct a house, the amount Of water which has been used, the thickness of the sprayed layer, etc. These values can be easily determined by tests. It has been ound that for example a pressure of 500 kg/m in the first pressure chamber 16 and 2500 kg/m2 in the second pressurè chamber 18 are satisfactory for a clrcular structure having a of diamter/7.5 meters when concrete is sprayed.
Although the invention has been shown and described with respect to a preferred embodiment thereof, it should be understood by those skilled in the art that various changes and omissions in the form and details thereof may be made therein without departing from the scope of the invention as defined in the appending claims.
In constructing houses or similar buildings framings are used for the concrete. Different types of framings are known for casting concrete.
A particular method of construction consists in the utilization of the spraying of cement, plaster, concrete or similar materials according to the Torcret - system onto a supporting structure to form the walls and the roof of the house or the building to be constructed. It has been propesed to use as supporting structure for this method an inflatable structure, that means a kind of envelope anchored to the ground on wh~h the materials used for the construction are sprayed according to the Torcrete_ system. The anchoring of the inflataDle structure cons~itutes however a ~ig disadvantage and limits the mobility ~nd use of this method of constructing.
The object of the present invention is to provide for the construction of houses or similar buildings an inflatable and supporting structure which does not have the disadvantages of the known structures of the s~oe type and which constitutes a stable framing which does not require any anchoring to the ground and which is therefore ver~ variaBle in its ~ilization.
According to the invention this ob;ect is achieved in that the inflatable and supporting structure comprises an upper membrane and an inner membrane her~etically fixed to one another to form a first inflatable pressure chamber forming said inflatable envelope, a second inf~atable pressure chamber fixed to the base of said ~irst pressure chamber, said - 107B'~U7 pressure chambers being formed of a material enabling their utilization as support and framing in construc~ing houses or similar buildings from concrete or similar or analogous materials and inthat said first prssure chamber is inflated to a pressure lower than that of the second pressure chamber.
The second pressure chamber may advantageously be arranged below the first pressure chamber and/or at the periphery thereof.
The pressure chambers may be fixed to one another by wel-ding. Said upper membrane may be welded to said second ;
pressure chamber; said inner membrane may be welded to said second pressure chamber. ; The upper membrane may be fixed to said second pressure chamber along a first fixing line or zone said inner membrane may be ~ixed to said second pressure chamber along a second fixing line or zone at a predetermined distance from said first fixing line or zone and the dimension of said upper membrane between its fixing lines or zonessis larger than the dimension of said inner membrane between its fixing ~ines or zones.
According to a preferred embodiment of the invention said upper and inner membranes may have a substantially circular shape and said second pressure chamber may have the form of a circular hose having a circular cross-section. The shape of the membranes may be triangular, quadrilateral or polygonal.
The second pressure chamber may have an annular shape similar to the shape of the first pressure chamDer.
The invention wlll now be described with reference to the enclosed drawing representing in cross-section a preferred embodiment of the inflatable and supporting structure according to the~n~ention, ~078Z07 In the drawing an inflatable and supporting structure 10 comprises an upper membrane 12 and a lower membrane 14 which are hermetically connected to one another to form a first pressure chamber 16. Means are provided to inflate said first pressure chamber 16 and to maintain it at the desired pressure.
A second pressure chamber 18 is fixed to said first pressure chamber 16. Means are also provided to inflate said second pressure chamber 18 and to maintain it at the desired pressure. The second pressure chamber is arranged at the base of said first pressure chamber 16 and supporte the same at its periphery. To this effect the upper membrane 12 is connected to said second pressure chamber along a peripheral zone or line 20 and the inner membrane 14 is connected to said second pressure chamber 18 along a peripheral zone or line 22 to form said first pressure chamber 16.
The particular form of the pressure chambers 16 and 18 depends on the particular utilization thereof and does not form a decisive feature of the invention, ~but it i8 selected as a function o~ the construction to be realized and besides the circular and oblongue shapes, the membranes may be polygonal or takenany arbitrary geometrical ~orm.
The material utilized for preparing the pressure chambers are not critical. It is sufficient that the materials be ad~pted for utilization in constructing houses or similar buildings by using the spraying of cement, plaster, concrete or similar materials according to the Torcret - system, that means that the membranes resist to the impact of these materials, may support the load created by their accumulation on the structure and may be easily separated from said 1~7821)7 materials after hardening.
The pressure chambers and the membrane may be fixed to ;~
one another by bonding, welding, etc. depanding on the materials utilized for preparing the inflatable and suppor-ting structure.
When constructing houses or similar buildings by using the inflatable and supporting structure according to the invention, this structure is placed on the ground 22. The first pressure chamber 16 is than inflated to the desired pressure as is also the second pressure chamber 18. The first pressure chamber 16 is ~nflated to the pressure Pl and the second pressure chamber 18 is inflated to the pressure P2.
The pressure P2 is always higher ~han pressure Pl. The fact of using different pressures in both pressure chambers 16 and 18 ensures a reciprocal stabilization of both the pneumatic systems each formed by one of the pressure chambers 16 and 18.
The pressure P2 in the second pressure chamber 18 acts against the pressure Pl in the first pressure chamber and has a neutralization and stabilization effect 60 as to enable the utili-zation of the inflatable and supporting structure accordingto the invention without special anchoring to the ground. Thus the desired total mobility and liberty of action are bobtained.
The inflatable structures having a single pressurecchamber require anchoring on the ground due to their tendency to float on the ~rou~d. The addition of a second pressure chamber at the basis o~ the first pressure chamber creates through the cooperation of both pressure chambers inflated to different pressures a stabilizing force acting on the inflatable structure to stabiliæe the structure on the ground and to so avoid the necessity of anchoring the structure on the ground , . . . ~ . .
~-- 1078Z07 during utilization. The stabilizing effect of the stabili-zing force is amplified if the fixing line or zone 20 of the upper membrane 12 to the second pressure chamber 18 is located at a certain distance from the fixing line or zone 22 of the inner membrane 14 to the second pressure chamber and if ,the dimension of the upper membrane between its fixing lines o~ ~ones 20 with the second pressure chamber 18 is larger than the dimension of the inner membrane 14 between its fixing lines or zones 22 with the second pressure chamber 18.
In the preferred embodiment of the inflatable and supporting ~-structure according to the invention th'e upper and inner membranes 12, 14 have a substantially circular shape. The second pressure chamber 18 has the shape of a circular hose having a circular cross-section.
In another preferred embodiment of the invention the inflatable and supporting structure consists of a first oblongue elongated chamber 16 under ~hich a second chamber having a similar shape ~s arranged so that this structure may be used to construct a tunnel.
The:upper~,and inner membranes 12, 14 forming the first pressure chamber 16 may also have a substantially triangular, quadrilateral or polygonal shape, the second pressure chamber 18 having then the shape of a similar ring at the periphery of the first pressure chamber 16.
In summary, the shape of the first pressure chamber 16 and of the second pressure chamber 18 is not a decisive feature of the invention. A mix~ure of water and cement, plaster and /
or a similar material and/or concrete is sprayed onto the supporting structure obtained by inflating the pressure chambers to different pressures until a layer of desired - -thickness is obtained. The layer so obtained is allowed to dry and the pressure chamber 16 and 18 of the inflatable and supporting structure are deflated after hardening and the structure is removed. Depending on the supporting structure which has been utilized, a struc~ure of cement, plaster and/or a similar material and/or concrete is obtained forming the roof and the walls of the house, when an inflatable and supporting structure having a circular, tr~ngular, quadrilateral ~r po~ygonal shape is used, or a tunnel, when an oblongue inflatable and supporting structure is used. So, many structural shapes may be obtained using inflatable and supporting structure according to the inventionhavlng an appropriate shape.
It is obvious that means may be used on the inflatable strucgures where openings are desired in the building for windows, doors, ventilation or for grouping different rooms of a housing in order to avoid that the layer of cement, plaster, etc. if formed on these places. These means may be the frames of doors and windows which, after hardening of the sprayed layer, remain in the layer and are anchored therein.
When constructing a house having several rooms, the same inflatable structure may be used fDr all rooms, or depending on the size and shape of the roomsi, different structures may be used. The finnished houses and buildings may be covered by means of soil to which a binder has been added; this forms a good insulationoof the housing and adapts it to the environment.
The pressures utilized in both pressure chambers 16 and 18 are not critical, but the second pressure chamber 18 must always be inflated to a higher pressure than the first - 1~78Z07 pressure chamber 16. The absolute value of the pressures used depends on t~le size of the pressure chambers 16 and 18 of the inflatable structure , the construction materials sprayed according to the Torcret - process on the structure to construct a house, the amount Of water which has been used, the thickness of the sprayed layer, etc. These values can be easily determined by tests. It has been ound that for example a pressure of 500 kg/m in the first pressure chamber 16 and 2500 kg/m2 in the second pressurè chamber 18 are satisfactory for a clrcular structure having a of diamter/7.5 meters when concrete is sprayed.
Although the invention has been shown and described with respect to a preferred embodiment thereof, it should be understood by those skilled in the art that various changes and omissions in the form and details thereof may be made therein without departing from the scope of the invention as defined in the appending claims.
Claims (16)
1. An inflatable-support structure for constructing houses or similar buildings comprising an upper membrane and a lower membrane connected hermetically to each other along a peripheral zone thereof wherein the dimensions of the upper membrane are larger than the corresponding dimensions of the lower membrane and the upper and lower membranes form a first pressure chamber constituting an inflatable envelope, a second inflatable pressure chamber fixed to the basis of said first pressure chamber, said pressure chambers being formed of a suitable material for their utilization as support and framing in the construction of houses or similar buildings of concrete or similar or analogous materials,and wherein said first pressure chamber is inflated to a pressure lower than that of said second pressure chamber.
2. The structure as claimed in claim 1, wherein said upper membrane is hermetically fixed to said second pressure chamber and said inner membrane is hermetically fixed to said second pressure chamber to form said first pressure chamber.
3. The structure according to claim 1, wherein said pressure chambers are connected to one another by welding.
4. The structure as claimed in claim 1, 2 or 3, wherein said upper membrance is fixed to said second pressure chamber along a first fixing line or zone, said inner mem-brane is fixed to said second pressure chamber along a second fixing line or zone located at a predetermined distance from said first fixing line or zone and wherein the dimension of said upper membrane between its fixing lines or zone is larger than the dimensions of said inner membrane between its fixing lines or zones.
5. The structure as claimed in claim 1, 2 or 3, characterized in that said second pressure chamber is annularly shaped and fixed to the periphery of said first pressure chamber and defines an open space.
6. The structure as claimed in claim 1, 2 or 3, characterized in that said first pressure chamber is made of substantially circular member and that said second pressure chamber is formed of a hose having a circular cross-section and arranged as an annulus.
7. The structure as claimed in claim 1, 2 or 3, wherein said first pressure chamber is oblongue and said second pressure chamber is an oblongue pressure chamber having the same length as said first pressure chamber,
8. The structure as claimed in claim 1, 2 or 3, wherein said upper and inner membranes are triangularly, quadrilaterially and polygonally shaped.
9. The structure as claimed in claim 1, 2 or 3, characterized in that said second pressure chamber is arranged under said first pressure chamber.
10. The structure as claimed in claim 1, 2 or 3, wherein said upper membrane is fixed to said second pre-sure chamber along a first fixing line or zone, said inner member is fixed to said second pressure chamber along the second fixing line or zone located at a rpredetermined distance from said first fixing line or zone, said first pressure chamber being a substantially circular member and that the second pressure chamber is formed of a hose having a circular cross section, and wherein the dimension of the said upper membrane between its fixing lines or zones is larger than the dimension of said intermembrane between its fixing lines or zones.
11. The structure as claimed in claim 1, 2 or 3, wherein said upper membrane is fixed to said second pressure chamber along a first fixing line or zone, said inner mem-brane is fixed to said second pressure chamber along a second fixing line or zone located at a predetermine dis-tance from said first fixing line or zone, said first pressure chamber being oblongue, and said second pressure chamber being oblongue and having the same length as said first pressure chamber, and wherein the dimensions of said upper membrane between its fixing lines or zone is larger than the dimension of said inner membrane between its fixing lines or zones.
12. The structure as claimed in claim 1, 2 or 3, wherein said upper membrane is fixed to said second pressure chamber along a first fixing line or zone, said inner mem-brane is fixed to said second pressure chamber along a second fixing line or zone located at a predetermined dis-tance from said first fixing line or zone said upper and inne membranes being triangularly, quadrilaterially or polygonally shaped.
13. An inflatable support structure for bearing a hardenable substance which forms a shell when cured, wherein the shell defines an enclosed space from which the support structure may be removed, said support structure comprising:
an upper membrane having an outside surface upon which the hardenable substance is deposited;
a lower membrane having an area less than that of the upper membrane;
means of connecting the upper and lower membranes along the peripheries thereof to define a first pressure chamber therebetween which when pressurized causes the upper membrane substantially to define the shape of the shell, and second hermetic chamber means attached to the first pressure chamber adjacent to the peripheries of the upper and lower membranes, said second pressure chamber means being inflatable to a pressure greater than that of the first pressure chamber to stablize the inflated structure on the surface upon which the structure rests.
an upper membrane having an outside surface upon which the hardenable substance is deposited;
a lower membrane having an area less than that of the upper membrane;
means of connecting the upper and lower membranes along the peripheries thereof to define a first pressure chamber therebetween which when pressurized causes the upper membrane substantially to define the shape of the shell, and second hermetic chamber means attached to the first pressure chamber adjacent to the peripheries of the upper and lower membranes, said second pressure chamber means being inflatable to a pressure greater than that of the first pressure chamber to stablize the inflated structure on the surface upon which the structure rests.
14. The inflatable support structure of claim 13 where-in the means for connecting the upper and lower membranes forms a base of the upper chamber from which the second pressure chamber means is depended.
15. The inflatable support structure of claim 14 where-in the peripheries of the upper and lower membranes are welded to the base in spaced relation to one another.
16. The inflatable support structure of claim 14 where-in the second hermetic chamber is arranged to define an open space between portions thereof.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU74384A LU74384A1 (en) | 1976-02-20 | 1976-02-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1078207A true CA1078207A (en) | 1980-05-27 |
Family
ID=19728160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA272,138A Expired CA1078207A (en) | 1976-02-20 | 1977-02-18 | Relating to the construction of houses or similar buildings by means of an inflatable structure |
Country Status (14)
| Country | Link |
|---|---|
| JP (1) | JPS52142816A (en) |
| AT (1) | AT359733B (en) |
| BE (1) | BE851589A (en) |
| CA (1) | CA1078207A (en) |
| CH (1) | CH609409A5 (en) |
| DE (1) | DE2705022A1 (en) |
| DK (1) | DK53177A (en) |
| FI (1) | FI770544A (en) |
| FR (1) | FR2341711A1 (en) |
| GB (1) | GB1577966A (en) |
| IT (1) | IT1077289B (en) |
| LU (1) | LU74384A1 (en) |
| NL (1) | NL7701337A (en) |
| SE (1) | SE7701599L (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT396157B (en) * | 1990-05-21 | 1993-06-25 | Patsch & Co Baustoffkontor Ohg | REUSABLE, INFLATABLE, TUBULAR SHIELDED HOLLOW COLLAR MADE OF ELASTIC MATERIAL |
| RU2463421C1 (en) * | 2011-04-08 | 2012-10-10 | Государственное образовательное учреждение Высшего профессионального образования Липецкий государственный технический университет (ГОУ ВПО ЛГТУ) | Pneumatic building structure |
| FR3133630A1 (en) * | 2022-03-20 | 2023-09-22 | Di'tec | inflatable cover structure with double membrane pressure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2314986A1 (en) * | 1975-06-16 | 1977-01-14 | Lasry John | Inflatable dome for construction of shells - has double skinned concave bottom wall inflated to higher pressure than dome |
-
1976
- 1976-02-20 LU LU74384A patent/LU74384A1/xx unknown
-
1977
- 1977-02-07 DE DE19772705022 patent/DE2705022A1/en not_active Withdrawn
- 1977-02-08 AT AT82277A patent/AT359733B/en not_active IP Right Cessation
- 1977-02-08 CH CH148177A patent/CH609409A5/en not_active IP Right Cessation
- 1977-02-09 NL NL7701337A patent/NL7701337A/en not_active Application Discontinuation
- 1977-02-09 DK DK53177A patent/DK53177A/en not_active Application Discontinuation
- 1977-02-14 SE SE7701599A patent/SE7701599L/en unknown
- 1977-02-16 GB GB6519/77A patent/GB1577966A/en not_active Expired
- 1977-02-17 FR FR7704579A patent/FR2341711A1/en active Pending
- 1977-02-18 JP JP1702677A patent/JPS52142816A/en active Pending
- 1977-02-18 CA CA272,138A patent/CA1078207A/en not_active Expired
- 1977-02-18 FI FI770544A patent/FI770544A/fi not_active Application Discontinuation
- 1977-02-18 IT IT20421/77A patent/IT1077289B/en active
- 1977-02-18 BE BE175063A patent/BE851589A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JPS52142816A (en) | 1977-11-29 |
| DE2705022A1 (en) | 1977-11-17 |
| FR2341711A1 (en) | 1977-09-16 |
| AT359733B (en) | 1980-11-25 |
| NL7701337A (en) | 1977-08-23 |
| SE7701599L (en) | 1977-08-21 |
| IT1077289B (en) | 1985-05-04 |
| LU74384A1 (en) | 1977-09-12 |
| CH609409A5 (en) | 1979-02-28 |
| DK53177A (en) | 1977-08-21 |
| BE851589A (en) | 1977-06-16 |
| FI770544A (en) | 1977-08-21 |
| GB1577966A (en) | 1980-10-29 |
| ATA82277A (en) | 1980-04-15 |
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