US3292338A - Incorporation of an inflated bag as a roof into a permanent structure - Google Patents

Incorporation of an inflated bag as a roof into a permanent structure Download PDF

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US3292338A
US3292338A US311264A US31126463A US3292338A US 3292338 A US3292338 A US 3292338A US 311264 A US311264 A US 311264A US 31126463 A US31126463 A US 31126463A US 3292338 A US3292338 A US 3292338A
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bag
securing
building
inflated
construction
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Macclarence John
Swante B Swenson
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    • 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
    • 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
    • E04H2015/202—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure with inflatable panels, without inflatable tubular framework
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24149—Honeycomb-like

Definitions

  • This invention relates to the construction of shelters or buildings using an inflatable bag or envelope as a covering during the construction phase and incorporation thereof as a permanent exterior roofing material in the final structure.
  • a core material which may be composed of blocks of foamed or expanded plastic material or honeycomb structure, is bonded to the underside of the inflated bag and a sheet of synthetic fiber material such as resin impregnated fiber glass cloth bonded to the underside of the core material.
  • This construction provides both rigidity and thermal insulation. Buildings may be either wholly constructed in this manner or only the roof structure, the balance of the building being of conventional materials such as masonry or wood.
  • Construction of buildings or shelters such as barracks, radoms, missile shelters, warehouses, garages, etc., can pose many problems especially when they must be erected in remote locations such as in arctic regions or in rela* tively inaccessible locations such as may be encountered in military operations.
  • Conventional construction methods and materials require the transportation of bulky materials, use of heavy equipment and skilled labor.
  • the construction as herein described overcomes many of these difliculties and permits construction operations to proceed despite the weather.
  • FIG. 1 is a perspective view of a building constructed with an inflatable bag exterior
  • FIG. 2 is a cross sectional view taken on the line 22 of FIG. 1 showing how the inflatable bag, the building modules, and the interior liner cooperate to give a permanent building structure;
  • FIG. 3 is a perspective view of a roof structure of A- shape showing the inflatable bag and form means.
  • FIG. 4 is a perspective View, partly in section, of a modification of the invention employing a honeycomb structure as the core material.
  • a free blown bag 1 forms a Quonset-type building.
  • the base portion of the bag is anchored and the bag is then inflated by air pressure sufiicient to overcome the atmospheric air pressure on the structure and such pressure maintained until the plastic blocks are ahered to the underside of the bag at which time the pressure producing source is disconnected and the blocks maintain the rigidity of the structure.
  • Strips of airtight material are sewn together at seams 2 to form this configuration of the building.
  • Entrance 3 provides means to enter and exit from the building and also provides an air lock to keep the bag inflated while the building is being constructed.
  • FIG. 2 The cross sectional view in FIG. 2 shows the various elements of the structure.
  • an inflatable bag 1 as shown in FIG. 1, is inflated to give both a form for the building to take and also a shelter for workmen constructing the building to work in.
  • the blocks or modules 4 that will form the main structural strength of the building.
  • the blocks are joined by suitable adhesive at their meeting surfaces to form a monolithic structure.
  • These blocks 4 can be foamed resin blocks which are extremely suitable because they can be carried to the construction site in powder form and then foamed at the site. Alternatively, the foamed core material may be applied by spraying. This procedure will eliminate much of the bulk and crating problems in transporting building materials such as bricks and lumber.
  • the resulting building is in the form of a sandwich with the plastic foamed blocks being sandwiched between the inflated bag on the outside and the interior lining on the inside.
  • a suitable lining is a resin impregnated glass fiber sheet which will give both structural strength to the building by firmly holding all the blocks in place and also provide a tough interior surface much more suited than exposed foamed plastic blocks.
  • FIG. 3 shows an embodiment of the invention where the roof is of the A-shape type.
  • a wall enclosure 9 is built on a foundation and the inflatable bag 1 is secured to the top of wall enclosure 9.
  • Inflation of the bag will cause it to go into a free blown shape, hence the need for a form 7 to hold the bag in an A-shape.
  • the form 7 would be on the exterior of the bag and be moved as the blocks are secured to the interior surface of the big.
  • This type of construction may also be used when the entire building is to be formed by the inflatable bag and to have an A-shape or other desired configuration.
  • the completed roof 6, where only the roof is formed of the inflatable bag is a rigid structure that is firmly attached to the wall 9.
  • Gable 8 is formed by a flat form held against the inflated bag and the plastic blocks are stacked vertically on wall 9 and caused to adhere to the plastic bag.
  • FIG. 4 embodies an outer and inner resin impregnated fiber glass cloth mat, 10 and 11 respectively, and a core 12 of expanded paper honeyglass mat which is heated or activated as by spraying with a catalyst and rolling.
  • a stress resisting skin may also be obtained by spraying the underside of the inflated bag with a mixture of chopped glass fiber and resin or by hand layup methods using resin impregnated fiber glass cloth.
  • Fixed windows may be incorporated into the structure by omitting the core material at the point desired and bonding a transparent sheet to the adjoining core area.
  • Movable windows can be located in the structure by bonding a hinge to the Window and the structure.
  • Door may be installed in the same manner.
  • Structures of various configurations can thus be either wholly or partially constructed by means of the inflatable bag and method herein described by a minimum of skilled personnel from material of small bulk and without the aid of heavy construction equipment ordinarily required in the construction of conventional structures.
  • a method for constructing a structure comprising the steps of:
  • a method of constructing a structure as recited in claim 11 including the steps of impregnating said liner material with a resin plastic material and curing said liner material to a rigidized state prior to removal of the air pressure supply means.
  • a method for constructing a structure comprising the steps of:

Description

Dec. 20, 1966 MaCcLARENcE ETAL 3,292,338
INCORPORATION OF AN INFLATED BAG AS A ROOF INTO A PERMANENT STRUCTURE Filed Sept. 24, 1963 \m/EwToQs JOHN MAC CLARENCE SWANT 5. 5wE/v50/v United States Patent 3,292,338 INCGRPORATIGN OF AN TNFLATED BAG AS A ROQF INTO A PERMANENT STRUCTURE John MacCiarence, Rte. 1, Eox 443, Stalford, Va. 22554,
and Swante B. Swenson, 308 Cambridge Road, Alexandria, Va. 22314 Filed Sept. 24, 1963, Ser. No. 311,264 Claims. (Ci. 52746) The invention described herein may be manufactured and used by or for the Government for governmental purposes without the payment to us of any royalty there- This invention relates to the construction of shelters or buildings using an inflatable bag or envelope as a covering during the construction phase and incorporation thereof as a permanent exterior roofing material in the final structure. After inflation of the bag, a core material, which may be composed of blocks of foamed or expanded plastic material or honeycomb structure, is bonded to the underside of the inflated bag and a sheet of synthetic fiber material such as resin impregnated fiber glass cloth bonded to the underside of the core material. This construction provides both rigidity and thermal insulation. Buildings may be either wholly constructed in this manner or only the roof structure, the balance of the building being of conventional materials such as masonry or wood.
Construction of buildings or shelters such as barracks, radoms, missile shelters, warehouses, garages, etc., can pose many problems especially when they must be erected in remote locations such as in arctic regions or in rela* tively inaccessible locations such as may be encountered in military operations. Conventional construction methods and materials require the transportation of bulky materials, use of heavy equipment and skilled labor. The construction as herein described overcomes many of these difliculties and permits construction operations to proceed despite the weather.
Accordingly, it is a principal object of the invention to provide a construction for buildings affording structural strength and thermal insulation which may be quickly erected from materials having minimum initial volume which may be expanded to a final predetermined size and shape by a minimum number of skilled personnel with a minimum of construction aids.
It is a further object of the invention to provide construction for buildings employing elements which may be quickly erected to provide protection during erection and which may be incorporated as a part of the final structure.
It is a further object of the invention to provide a construction for buildings which may be readily adapted to site conditions.
It is another object of the invention to provide a constnlction for buildings including an inflatable member which may be used in combination with conventional structural materials or alone and which may support additional rigid elements and a sheet membrane to provide a self-supporting building or portion thereof having structural strengthand thermal insulating properties.
These and other objects will become apparent as the description proceeds in which:
FIG. 1 is a perspective view of a building constructed with an inflatable bag exterior;
FIG. 2 is a cross sectional view taken on the line 22 of FIG. 1 showing how the inflatable bag, the building modules, and the interior liner cooperate to give a permanent building structure;
FIG. 3 is a perspective view of a roof structure of A- shape showing the inflatable bag and form means; and
3,292,333 Patented Dec. 20, 1966 FIG. 4 is a perspective View, partly in section, of a modification of the invention employing a honeycomb structure as the core material.
Referring now to FIG. 1, where the outside layer or inflatable bag 1 is shown, it is noted that a free blown bag 1 forms a Quonset-type building. The base portion of the bag is anchored and the bag is then inflated by air pressure sufiicient to overcome the atmospheric air pressure on the structure and such pressure maintained until the plastic blocks are ahered to the underside of the bag at which time the pressure producing source is disconnected and the blocks maintain the rigidity of the structure. Strips of airtight material are sewn together at seams 2 to form this configuration of the building. Entrance 3 provides means to enter and exit from the building and also provides an air lock to keep the bag inflated while the building is being constructed.
The cross sectional view in FIG. 2 shows the various elements of the structure. First an inflatable bag 1, as shown in FIG. 1, is inflated to give both a form for the building to take and also a shelter for workmen constructing the building to work in. To this inflated bag are attached by means of an adhesive the blocks or modules 4 that will form the main structural strength of the building. The blocks are joined by suitable adhesive at their meeting surfaces to form a monolithic structure. These blocks 4 can be foamed resin blocks which are extremely suitable because they can be carried to the construction site in powder form and then foamed at the site. Alternatively, the foamed core material may be applied by spraying. This procedure will eliminate much of the bulk and crating problems in transporting building materials such as bricks and lumber. After the blocks 4 are all in place and adhering to the bag 1, internal lining 5 is put on the inside of blocks to provide an interior surface. This lining can be applied with conventional adhesives. When the interior lining is completed, the air lock is disassembled and the building structure is complete. With this method of construction, the inflated bag that was used as a shelter and form in the construction of the building has now also become the outer waterproof covering for the building and has in fact become a permanent part of the building.
The resulting building is in the form of a sandwich with the plastic foamed blocks being sandwiched between the inflated bag on the outside and the interior lining on the inside. A suitable lining is a resin impregnated glass fiber sheet which will give both structural strength to the building by firmly holding all the blocks in place and also provide a tough interior surface much more suited than exposed foamed plastic blocks.
FIG. 3 shows an embodiment of the invention where the roof is of the A-shape type. Here a wall enclosure 9 is built on a foundation and the inflatable bag 1 is secured to the top of wall enclosure 9. Inflation of the bag will cause it to go into a free blown shape, hence the need for a form 7 to hold the bag in an A-shape. The form 7 would be on the exterior of the bag and be moved as the blocks are secured to the interior surface of the big. This type of construction may also be used when the entire building is to be formed by the inflatable bag and to have an A-shape or other desired configuration. The completed roof 6, where only the roof is formed of the inflatable bag, is a rigid structure that is firmly attached to the wall 9. Gable 8 is formed by a flat form held against the inflated bag and the plastic blocks are stacked vertically on wall 9 and caused to adhere to the plastic bag.
The construction illustrated in FIG. 4 embodies an outer and inner resin impregnated fiber glass cloth mat, 10 and 11 respectively, and a core 12 of expanded paper honeyglass mat which is heated or activated as by spraying with a catalyst and rolling. A stress resisting skin may also be obtained by spraying the underside of the inflated bag with a mixture of chopped glass fiber and resin or by hand layup methods using resin impregnated fiber glass cloth.
Fixed windows may be incorporated into the structure by omitting the core material at the point desired and bonding a transparent sheet to the adjoining core area. Movable windows can be located in the structure by bonding a hinge to the Window and the structure. Door may be installed in the same manner. Structures of various configurations can thus be either wholly or partially constructed by means of the inflatable bag and method herein described by a minimum of skilled personnel from material of small bulk and without the aid of heavy construction equipment ordinarily required in the construction of conventional structures.
We claim:
1.A method for constructing a structure comprising the steps of:
(a) impregnating a fiber glass cloth material of predetermined bag configuration with a resin plastic material;
(b) securing said resin impregnated, bag configured fiber glass cloth material to a base in air-tight relation;
(c) applying air pressure supply means and inflating said bag;
(d) securing by adhesive means a plurality of modular structural units to the underside of said inflated bag to form a continuous surface;
(e) securing a liner material to the under surface of said plurality of modular structural units to be coextensive therewith;
(f) curing said resin plastic impregnated material to a rigidized state; and
(g) removing said air pressure supply means.
2. A method for constructing a structure comprising the steps of:
(a) impregnating a fiber glass cloth material of predetermining bag configuration with a resin plastic material;
(b) securing said resin impregnated, bag configured fiber glass cloth material to a base in air-tight relation;
(c) applying air pressure supply means and inflating said bag;
(d) securing by adhesive means an expanded honeycomb material to the underside of said inflated bag to form a continuous surface;
(e) securing a liner material to the under surface of said expanded honeycomb material to be coextensive therewith;
(f) curing said resin impregnated material to a rigidized state; and (g) removing said air pressure supply means.
3. A method of constructing a structure as recited in claim 11 including the steps of impregnating said liner material with a resin plastic material and curing said liner material to a rigidized state prior to removal of the air pressure supply means.
4. A method for constructing a structure comprising the steps of:
(a) securing an inflatable bag of non-porous material of predetermined configuration to a base in air-tight rela- 1 tion;
(b) applying air pressure supply means and inflating said bag;
(c) positioning a movable forming member supported on said base and exterior of said inflated bag at a terminal end of said inflatable bag for movement along said inflated bag, in predetermined intervals;
((1) securing by adhesive means an expanded core material to the under surface of said inflated bag to form a continuous surface therewith and successively mov- 1 ing said forming member in predetermined intervals as said core material is applied to the under surface of said inflated bag;
(e) securing a liner material to the exposed surface of said expanded core material to be coextensive therewith; and
(f) removing said air pressure supply means and said forming member.
5. The method as recited in claim 4 including the steps of impregnating said inflatable bag material and said liner with a resin plastic and curing said inflatable bag and said liner to a rigidized state prior to removal of said air pressure supply means.
References Cited by the Examiner FRANK L. ABBOTT, Primary Examiner.
JOHN E. MURTAGH, Exqminer.

Claims (1)

1. A METHOD FOR CONSTRUCTING A STRUCTURE COMPRISING THE STEPS OF: (A) IMPREGNATING A FIBER GLASS CLOTH MATERIAL OF PREDETERMINED BAG CONFIGURATION WITH A RESIN PLASTIC MATERIAL; (B) SECURING SAID RESIN IMPREGNATED, BAG CONFIGURED FIBER GLASS CLOTH MATERIAL TO A BASE IN AIR-TIGHT RELATION; (C) APPLYING AIR PRESSURE SUPPLY MEANS AND INFLATING SAID BAG; (D) SECURING BY ADHESIVE MEANS A PLURALITY OF MODULAR STRUCTURAL UNITS TO THE UNDERSIDE OF SAID INFLATED BAG TO FORM A CONTINUOUS SURFACE; (E) SECURING A LINER MATERIAL TO THE UNDER SURFACE OF SAID PLURALITY OF MODULAR STRUCTURAL UNITS TO BE COEXTENSIVE THEREWITH; (F) CURING SAID RESIN PLASTIC IMPREGNATED MATERIAL TO A RIGIDIZED STATE; AND (G) REMOVING SAID AIR PRESSURE SUPPLY MEANS.
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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3481087A (en) * 1968-02-05 1969-12-02 Robert M Stafford Weatherproofing system and envelope panel therefor
US4324074A (en) * 1977-03-07 1982-04-13 South David B Building structure and method of making same
US4597925A (en) * 1985-07-05 1986-07-01 Loggy Albert D Method of constructing a modular reinforced building structure
US4676032A (en) * 1983-10-28 1987-06-30 Pierre Jutras Inflatable wall structure
US4799982A (en) * 1986-03-20 1989-01-24 Charmasson & Holz Method of molding monolithic building structure
US5005799A (en) * 1988-03-19 1991-04-09 Anthony Gallagher Patterns for determining the profile of an arch
US5122400A (en) * 1987-11-20 1992-06-16 Stewkie Limited Inflatable articles and method of creating inflatable products
US5918438A (en) * 1997-04-15 1999-07-06 South; David B. Dome type building and method of making same
US20040045227A1 (en) * 2002-09-11 2004-03-11 Dome Technology, Inc. Building with foam cored ribs and method
WO2005124063A2 (en) * 2004-06-17 2005-12-29 Crawford Brewin Ltd A prefabricated shelter
US20070101466A1 (en) * 2005-10-27 2007-05-03 Ferraro Allan R Sr Expandable inflatable structure

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US468455A (en) * 1892-02-09 giessmann
US2335300A (en) * 1941-11-25 1943-11-30 Neff Wallace Building construction
US2837101A (en) * 1955-04-28 1958-06-03 Nina Bary Inflatable structure
FR1235094A (en) * 1959-09-11 1960-07-01 Andre & Serge Ferrari Inflatable tent
US2977658A (en) * 1958-07-21 1961-04-04 Flexicore Co Cores for manufacture of precast slabs
US3050208A (en) * 1959-09-25 1962-08-21 Robert L Irvine Storage vessel
US3111569A (en) * 1958-06-20 1963-11-19 Rubenstein David Packaged laminated constructions
US3118010A (en) * 1960-10-10 1964-01-14 Ivan Himmel Method and apparatus for constructing a concrete structure
US3161553A (en) * 1959-12-14 1964-12-15 Space Structures Inc Method of making a reinforced semi-rigid structure
US3170471A (en) * 1962-04-23 1965-02-23 Schnitzer Emanuel Inflatable honeycomb
US3184210A (en) * 1962-06-25 1965-05-18 Ite Circuit Breaker Ltd Collapsible form jig

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US468455A (en) * 1892-02-09 giessmann
US2335300A (en) * 1941-11-25 1943-11-30 Neff Wallace Building construction
US2837101A (en) * 1955-04-28 1958-06-03 Nina Bary Inflatable structure
US3111569A (en) * 1958-06-20 1963-11-19 Rubenstein David Packaged laminated constructions
US2977658A (en) * 1958-07-21 1961-04-04 Flexicore Co Cores for manufacture of precast slabs
FR1235094A (en) * 1959-09-11 1960-07-01 Andre & Serge Ferrari Inflatable tent
US3050208A (en) * 1959-09-25 1962-08-21 Robert L Irvine Storage vessel
US3161553A (en) * 1959-12-14 1964-12-15 Space Structures Inc Method of making a reinforced semi-rigid structure
US3118010A (en) * 1960-10-10 1964-01-14 Ivan Himmel Method and apparatus for constructing a concrete structure
US3170471A (en) * 1962-04-23 1965-02-23 Schnitzer Emanuel Inflatable honeycomb
US3184210A (en) * 1962-06-25 1965-05-18 Ite Circuit Breaker Ltd Collapsible form jig

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3481087A (en) * 1968-02-05 1969-12-02 Robert M Stafford Weatherproofing system and envelope panel therefor
US4324074A (en) * 1977-03-07 1982-04-13 South David B Building structure and method of making same
US4676032A (en) * 1983-10-28 1987-06-30 Pierre Jutras Inflatable wall structure
US4597925A (en) * 1985-07-05 1986-07-01 Loggy Albert D Method of constructing a modular reinforced building structure
US4799982A (en) * 1986-03-20 1989-01-24 Charmasson & Holz Method of molding monolithic building structure
US5122400A (en) * 1987-11-20 1992-06-16 Stewkie Limited Inflatable articles and method of creating inflatable products
US5005799A (en) * 1988-03-19 1991-04-09 Anthony Gallagher Patterns for determining the profile of an arch
US5918438A (en) * 1997-04-15 1999-07-06 South; David B. Dome type building and method of making same
US20040045227A1 (en) * 2002-09-11 2004-03-11 Dome Technology, Inc. Building with foam cored ribs and method
US6840013B2 (en) 2002-09-11 2005-01-11 Dome Technology, Inc. Building with foam cored ribs and method
US20050097830A1 (en) * 2002-09-11 2005-05-12 Dome Technology, Inc. Building with foam cored ribs and method
WO2005124063A2 (en) * 2004-06-17 2005-12-29 Crawford Brewin Ltd A prefabricated shelter
WO2005124063A3 (en) * 2004-06-17 2007-03-29 Crawford Brewin Ltd A prefabricated shelter
US20080017229A1 (en) * 2004-06-17 2008-01-24 Crawford Brewin Ltd Prefabricated Shelter
US7721749B2 (en) 2004-06-17 2010-05-25 Crawford Brewin Ltd. Prefabricated shelter
US20070101466A1 (en) * 2005-10-27 2007-05-03 Ferraro Allan R Sr Expandable inflatable structure

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