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US3229437A - Concrete structures - Google Patents

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US3229437A
US3229437A US224783A US22478362A US3229437A US 3229437 A US3229437 A US 3229437A US 224783 A US224783 A US 224783A US 22478362 A US22478362 A US 22478362A US 3229437 A US3229437 A US 3229437A
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cells
concrete
sheet material
holes
ducts
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US224783A
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Adie George Mountford
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/32—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure formed of corrugated or otherwise indented sheet-like material; composed of such layers with or without layers of flat sheet-like material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/044—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres of concrete
    • 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
    • Y10S52/00—Static structures, e.g. buildings
    • Y10S52/10—Polyhedron
    • 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
    • Y10T428/234—Sheet including cover or casing including elements cooperating to form cells
    • 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.]
    • Y10T428/24628—Nonplanar uniform thickness material
    • Y10T428/24661—Forming, or cooperating to form cells

Definitions

  • the invention is concerned with a system of construction which enables a concrete structure to be given desirable dimensions or a desired overall bulk without involving the use of a weight or quantity of materials corresponding to that overall bulk.
  • the present invention consists in the construction of a cellular monolithic structure the inter-cellular spaces in which form a three-dimensional grid.
  • the cells are 26-sided regular geometrical figures of which all the principal cross-sections are octagons.
  • the grid system is of identical cross-section in each of the three principal mutually prependicular planes and the grid members are of square cross-section.
  • the amount of concrete used in such a structure is quite small. In the ideal case just cited, it is 25% of the bulk and a very important economy can arise in the cost of transportation and handling of the materials (cement and aggregate) of the concrete.
  • the cells themselves which must be physical cells and not mere voids, are bulky and this may lead to transportation and storage problems of their own. Accordingly, the invention includes also within its scope the production of the cells on the site by means of inflatable elements.
  • Such inatable elements can be in lthe form of iluid tight containers adapted, on ination, to become locally swelled to form a series of interconnected cells.
  • a tube the expansion of which is restricted locally at intervals along its length can ⁇ constitute such an intlatable element.
  • the element is in the form of a bag which is iiat in the deliated condition and is provided with holes allowing for passage rof the material of the structure, ination of the bag leading to swel-lings clustered round the holes and which approximate to polyhedrons lor to spheres which in use are flattened so that they approximate to polyhedrons.
  • the invention also includes within its scope monolithic structures of opposite construction to those described above, namely, in which tfhe cells are lled with the structural material while the three-dimensional grid system is void.
  • FIGURE l shows in prespective an assembly of cells
  • FIGURE 2 is a plan View of che assembly of FIGURE l;
  • FIGURE 3 is a section on the line III-III of FIG- URE 2 with concrete cast over the cells;
  • FIGURE 4 is a section on the line IV-IV lof FIG- URE 2 with concrete cast over the cells;
  • FIGURE 5 is a section on the line V-V of FIG- URE 2 with concrete cast over the cells;
  • FIGURE 6 shows an inflatable bag for use in accordance with the invention.
  • FIGURE 7 is a section taken on 4the line VII-VII in FIGURE 6 showing the bag Ain the inflated condition;
  • FIGURE 8 is a perspective view lof the assembly of cells of FIGURE 1 with concrete cast over the cells.
  • All the cells A show-n in the drawings are identical each being a polyhedron having 26 sides, the principal cross-sections of which are octagonal. As the cells are regular, the side elevation and end elevation are similar to the plan of the assembly shown in FIGURE 2. Any row of cells defines with the neighbouring row a series of passages or ducts of rectangular cross-section. There are, in fact, three series of such ducts in the three principal planes, these being shown in solid form in FIG- URES 3, 4 and 5 the centre lines being indicated in dot and dash lines at B1 (vertical), B2 (horizontal in one direction) and B3 (horizontal and perpendicular to B2). As the intercellular spaces form aregular three-dimensional grid system concrete can be cast over and around the cells shown in FIGURES l and 2 to produce the structure shown in FIGURE 3, 4 and 5.
  • the unwelded area of the bag is formed of a series of contiguous loctagons 18 as shown by the dotted lines in FIGURE 6. If the bag is inflated (through the inlet 19) the o-ctagonal areas 18 will be swelled into intercommunicating cells or swellings which approximate to the polyhedral cells A of FIGURES 1 and 2.
  • the square holes 10 will form ducts which correspond to the ducts B in FIGURE 2, similar ducts running tlhe length and breadth of the bags being formed between the cells 18, and each cell has at least point Contact with adjacent cells.
  • the inllatant of the bags can be any iluid such as air or water and can be exhausted after it has served its primary purpose of forming the cells or it can be left in the bags or tubes.
  • water can be used as the inllatant and be left in the cells after the concrete cast round them has set.
  • Ithe inatant can be kept circulating through the bags (the latter being provided with an outlet 36 FIGURE 6).
  • the temperature can be regulated as required for conditioning the concrete.
  • the intlatant can also be used for vibrating the concrete to ensure the desired degree of compactness of the cast mas-s. Its pressure can be increased aft-er casting and before setting of the concrete for the same purpose.
  • cells formed by the bags can also be used to contain substances such as cemenet grout which will se-t and till them permanently. By so filling the cells in selected portions of a structure, those portions can be made specially strong.
  • the cells must, of course, intertcomrnunicate as in the bag and tube examples described above.
  • This system has special advantages.
  • the concrete is protected by the cells 'during 'setting and its setting rate can be substantially lengtlhened or otherwise controlled.
  • the protection alforded by the cells is of particular value in construction underwater or on lboggy or swamped sites as, apart from preventing pollution it makes the use of rapid hardening cement unnecessary.
  • a one-piece structure of a castable material having a regular series of cells dened by sheet material, said cells being arranged symmetrically both vertically and horizontally on a rectangular grid -within the said structure, each cell having at least point Contact with ⁇ adjacent cells, and the material of the structure present between the cells extending in three mutually perpendicular directions along the lines of a rectangular grid; the cells being defined by inflatable elements with 4the cells in any one horizontal plane intercommunicating, and the cells in each layer being connected together by sheet material extending in the median of the cells, the sheet material having holes in it between the cells through whidh holes the solid matter of the structure passes.
  • a one-piece structure as claimed in claim 1 in which the cells in one horizontal plan-e are interconnected with the corresponding cells in an adjacent horizontal plane.
  • FRANK L. ABBOTT Primary Examiner.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)

Description

Jan. 18, 1966 G. M. ADIE 3,229,437
CONCRETE STRUCTURES Filed Sept. 19, 1962 ttorne United States Patent Office 3,229,437 Patented Jan. 18, 1966 3,229,437 CONCRETE STRUCTURES George Mountford Adie, 7 Carlos Place, London W.1, England Filed Sept. 19, 1962, Ser. No. 224,783 Claims priority, application Great Britain, Sept. 3, 1957, 27,841/57 3 Claims. (Cl. 52-576) This invention relates to monolithic structures and is a continuation-impart of my copen-ding application Serial Number 75 8,837 led September 3, 195 8 now abandoned.
One of the main economy factors affecting the design of Concrete structures is that lof the Weight or quantity or bulk of material used. The amount of concrete demanded in a structure in order to provide the necessary strength is not the saine at all places in the structure. Nevertheless, the members or sections of a concrete structure are frequently made of uniform cross-section for simplicity of construction and other reasons and consequently more material is used than is theoretically necessary. In the case of walls and other supporting members, certain width to height ratios are normally adopted which lead to the use of a quantity of material in excess of that demanded by considerations of compressive strength. In the case of certain types of dams, a certain thickness is required to resist overturning and lthis generally leads to excess weight of material being used.
The invention is concerned with a system of construction which enables a concrete structure to be given desirable dimensions or a desired overall bulk without involving the use of a weight or quantity of materials corresponding to that overall bulk.
In its broadest aspect, the present invention consists in the construction of a cellular monolithic structure the inter-cellular spaces in which form a three-dimensional grid.
In the ideal structure in accordance with the invention, the cells are 26-sided regular geometrical figures of which all the principal cross-sections are octagons. In that case, the grid system is of identical cross-section in each of the three principal mutually prependicular planes and the grid members are of square cross-section.
For a given bulk, the amount of concrete used in such a structure is quite small. In the ideal case just cited, it is 25% of the bulk and a very important economy can arise in the cost of transportation and handling of the materials (cement and aggregate) of the concrete. However, the cells themselves, which must be physical cells and not mere voids, are bulky and this may lead to transportation and storage problems of their own. Accordingly, the invention includes also within its scope the production of the cells on the site by means of inflatable elements.
Such inatable elements can be in lthe form of iluid tight containers adapted, on ination, to become locally swelled to form a series of interconnected cells. A tube the expansion of which is restricted locally at intervals along its length can `constitute such an intlatable element. In its preferred form, however, the element is in the form of a bag which is iiat in the deliated condition and is provided with holes allowing for passage rof the material of the structure, ination of the bag leading to swel-lings clustered round the holes and which approximate to polyhedrons lor to spheres which in use are flattened so that they approximate to polyhedrons.
The invention also includes within its scope monolithic structures of opposite construction to those described above, namely, in which tfhe cells are lled with the structural material while the three-dimensional grid system is void.
In order that the invention may be thoroughly understood, it will be further explained with reference to the accompanying drawings, given by way of example, in which:
FIGURE l shows in prespective an assembly of cells;
FIGURE 2 is a plan View of che assembly of FIGURE l;
FIGURE 3 is a section on the line III-III of FIG- URE 2 with concrete cast over the cells;
FIGURE 4 is a section on the line IV-IV lof FIG- URE 2 with concrete cast over the cells;
FIGURE 5 is a section on the line V-V of FIG- URE 2 with concrete cast over the cells;
FIGURE 6 shows an inflatable bag for use in accordance with the invention, and
FIGURE 7 is a section taken on 4the line VII-VII in FIGURE 6 showing the bag Ain the inflated condition;
FIGURE 8 is a perspective view lof the assembly of cells of FIGURE 1 with concrete cast over the cells.
All the cells A show-n in the drawings are identical each being a polyhedron having 26 sides, the principal cross-sections of which are octagonal. As the cells are regular, the side elevation and end elevation are similar to the plan of the assembly shown in FIGURE 2. Any row of cells defines with the neighbouring row a series of passages or ducts of rectangular cross-section. There are, in fact, three series of such ducts in the three principal planes, these being shown in solid form in FIG- URES 3, 4 and 5 the centre lines being indicated in dot and dash lines at B1 (vertical), B2 (horizontal in one direction) and B3 (horizontal and perpendicular to B2). As the intercellular spaces form aregular three-dimensional grid system concrete can be cast over and around the cells shown in FIGURES l and 2 to produce the structure shown in FIGURE 3, 4 and 5.
The unwelded area of the bag is formed of a series of contiguous loctagons 18 as shown by the dotted lines in FIGURE 6. If the bag is inflated (through the inlet 19) the o-ctagonal areas 18 will be swelled into intercommunicating cells or swellings which approximate to the polyhedral cells A of FIGURES 1 and 2.
If a number of inflated -bags are laid on top of each other, the square holes 10 will form ducts which correspond to the ducts B in FIGURE 2, similar ducts running tlhe length and breadth of the bags being formed between the cells 18, and each cell has at least point Contact with adjacent cells.
By pouring concrete into the said ducts, a monolithic structure will be produced corresponding to that sho-Wn in FIGURE 3.
The inllatant of the bags can be any iluid such as air or water and can be exhausted after it has served its primary purpose of forming the cells or it can be left in the bags or tubes. In the case in which it is desired that the structure be of great weight, water can be used as the inllatant and be left in the cells after the concrete cast round them has set.
If desired, Ithe inatant can be kept circulating through the bags (the latter being provided with an outlet 36 FIGURE 6). For example, by the circulation of hot o-r cold Water, the temperature can be regulated as required for conditioning the concrete.
The intlatant can also be used for vibrating the concrete to ensure the desired degree of compactness of the cast mas-s. Its pressure can be increased aft-er casting and before setting of the concrete for the same purpose.
'Ihe ,cells formed by the bags can also be used to contain substances such as cemenet grout which will se-t and till them permanently. By so filling the cells in selected portions of a structure, those portions can be made specially strong.
It Will be appreciated that the cells could be lilled with concerete and the three-dimensional duct system remain void.
In this case, the cells must, of course, intertcomrnunicate as in the bag and tube examples described above. This system has special advantages. For example, the concrete is protected by the cells 'during 'setting and its setting rate can be substantially lengtlhened or otherwise controlled. The protection alforded by the cells is of particular value in construction underwater or on lboggy or swamped sites as, apart from preventing pollution it makes the use of rapid hardening cement unnecessary.
It lwill also be appreciated that the relative and absolute dimensions of the cells and ducts can be varied within wide limits and that if desired, steel reinforcing rods can be arranged in the ducts.
I claim: v
1. A one-piece structure of a castable material having a regular series of cells dened by sheet material, said cells being arranged symmetrically both vertically and horizontally on a rectangular grid -within the said structure, each cell having at least point Contact with `adjacent cells, and the material of the structure present between the cells extending in three mutually perpendicular directions along the lines of a rectangular grid; the cells being defined by inflatable elements with 4the cells in any one horizontal plane intercommunicating, and the cells in each layer being connected together by sheet material extending in the median of the cells, the sheet material having holes in it between the cells through whidh holes the solid matter of the structure passes.
2. A one-piece structure as claimed in claim 1 in which the cells have a shape approximating to a polyhedron.
3. A one-piece structure as claimed in claim 1 in which the cells in one horizontal plan-e are interconnected with the corresponding cells in an adjacent horizontal plane.
References Cited by the Examiner UNITED STATES PATENTS 525,202 8/1894 Granjon et a1 52-606 948,541 2/1910 Coleman 52-382 1,526,470 2/1925 Frease 52--380 1,970,803 8/1934 Johnson 156-292 2,226,201 12/1940 Freyssinet 52-144 2,426,796 9/ 1947 Stadelhoer 52-306 2,681,562 6/1954 Clarke 52-382 2,737,204 3/1956 Labonte 52-220 X 2,794,233 6/ 1957 Morton et al. 2,840,353 6/ 1958 Muspratt 52--607 2,892,339 6/1959 Flower et al. 52-608 2,897,741 8/1959 Mauch 156-292 FOREIGN PATENTS 933,711 1/1948 France. 725,832 3/1955 Great Britain. 15,109 9/ 1897 Switzerland.
FRANK L. ABBOTT, Primary Examiner.
RICHARD W. COOKE, JR., HENRY C. SUTHER- LAND, Examiners.

Claims (1)

1. A ONE-PIECE STRUCTURE OF A CASTABLE MATERIAL HAVING A REGULAR SERIES OF CELLS DEFINED BY SHEET MATERIAL, SAID CELLS BEING ARRANGED SYMMETRICALLY BOTH VERTICALLY AND HORIZONTALLY ON A RECTANGULAR GRID WITHIN THE SAID STRUCTURE, EACH CELL HAVING AT LEAST POINT CONTACT WITH ADJACENT CELLS, AND THE MATERIAL OF THE STRUCTURE PRESENT BETWEEN THE CELLS EXTENDING IN THREE MUTUALLY PERPENDICULAR DIRECTIONS ALONG THE LINES OF A RECTANGULAR GRID; THE CELLS BEING DEFINED BY INFLATABLE ELEMENTS WITH THE CELLS IN ANY ONE HORIZONTAL PLANE INTERCOMMUNICATING, AND THE CELLS IN EACH LAYER BEING CONNECTED TOGETHER BY SHEET MATERIAL EXTENDING IN THE MEDIAN OF THE CELLS, THE SHEET MATERIAL HAVING HOLES IN IT BETWEEN THE CELLS THROUGH WHICH HOLES THE SOLID MATTER OF THE STRUCTURE PASSES.
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GB27841/57A GB885211A (en) 1957-09-03 1957-09-03 One-piece cellular structures and cores therefor

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Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3331170A (en) * 1962-12-29 1967-07-18 Lowe & Rodin Preassembled subenclosures assembled to form building construction
US3388509A (en) * 1965-03-09 1968-06-18 Raul L. Mora Inflatable construction panels and method of making same
US3495367A (en) * 1965-12-21 1970-02-17 Hideya Kobayashi Precast lightweight reinforced concrete plank
FR2088208A1 (en) * 1970-05-28 1972-01-07 Citroen Sa
US3663347A (en) * 1970-07-16 1972-05-16 Nasa Honeycomb panels formed of minimal surface periodic tubule layers
US3789094A (en) * 1971-05-06 1974-01-29 Monostruct Corp Ltd Method of producing a molded foamed structural member having a honeycomb core adapted for venting
US3803784A (en) * 1971-06-25 1974-04-16 O Becker Composite wall element for thermal and acoustic insulation
US3862736A (en) * 1973-01-04 1975-01-28 Dearborn Rubber Corp Device for forming polygonal voids in concrete members
US3922413A (en) * 1974-06-03 1975-11-25 Richard G Reineman Lightweight, high strength, reinforced concrete constructions
US4233787A (en) * 1978-07-17 1980-11-18 Maso Therm Corporation Composite building module and method for making same
US4318251A (en) * 1980-02-22 1982-03-09 Winkler Marshall N Inflatable and automatically deployable heat blanket
WO1988003086A1 (en) * 1986-10-24 1988-05-05 Patterson Fred R Variable geometry core structure
US4940364A (en) * 1988-10-14 1990-07-10 Dlugosz Leonard T Concrete construction units and multi-ply concrete composites made therefrom
US5396747A (en) * 1990-10-01 1995-03-14 Breuning; Jorgen I. Plane hollow reinforced concrete floors with two-dimensional structure
US5615528A (en) * 1994-11-14 1997-04-01 Owens; Charles R. Stress steering structure
US20020172817A1 (en) * 2001-05-17 2002-11-21 Owens Charles R. Preform for manufacturing a material having a plurality of voids and method of making the same
US20050260398A1 (en) * 2001-05-17 2005-11-24 Hexas Llc Methods and systems for manufacturing a structure having organized areas
US20100122504A1 (en) * 2008-11-17 2010-05-20 Sarkisian Mark P Environmentally sustainable form-inclusion system
ES2356546A1 (en) * 2010-06-28 2011-04-11 Alberto Alarcón García Lightweight slab or similar structural element which can receive equipment that is accessible and that can extend through the slab
US20140227480A1 (en) * 2011-10-21 2014-08-14 Ajou University Industry-Academic Cooperation Foundation Structure for construction and method for manufacturing same
US20150001764A1 (en) * 2012-02-14 2015-01-01 Ajou University Industry-Academic Cooperation Foundation Mold for construction structure and method for manufacturing construction structure using same
US20150343712A1 (en) * 2009-11-14 2015-12-03 Michael Drever Composite structure manufacturing method
USD863605S1 (en) * 2013-08-28 2019-10-15 Matt Alirol Buoyant liquid cover member
US10753088B2 (en) * 2016-06-09 2020-08-25 Contruss Engineering Co. Slab fillers and methods for implementing fillers in two-way concrete slabs for building structures

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US525202A (en) * 1894-08-28 Jean benoit granjon and camille bellon
CH15109A (en) * 1897-09-30 1898-04-30 E Brunner Insulating body
US948541A (en) * 1908-03-23 1910-02-08 Clyde J Coleman Heat-insulating wall.
US1526470A (en) * 1923-10-01 1925-02-17 George Hives Dawson Structural material
US1970803A (en) * 1932-10-03 1934-08-21 Johnson John Herbert Method of making an inflatable rubber structure
US2226201A (en) * 1938-08-01 1940-12-24 Freyssinet Eugene Jack apparatus
US2426796A (en) * 1945-06-27 1947-09-02 Fred F Stadelhofer Concrete wall form
FR933711A (en) * 1946-09-18 1948-04-29 Rapid construction process for walls and partitions, and materials used in its execution
US2681562A (en) * 1951-06-07 1954-06-22 Clarke Lawrence Concrete wall
GB725832A (en) * 1953-02-25 1955-03-09 Lawrence Clarke Concrete walls
US2737204A (en) * 1952-09-16 1956-03-06 Bonte Fred E La Conduit structure
US2794233A (en) * 1954-03-24 1957-06-04 Alden D Morton Method of and apparatus for molding cavities in settable molding material
US2840353A (en) * 1952-08-29 1958-06-24 Paul M Muspratt Radiant heating panel
US2892339A (en) * 1952-02-04 1959-06-30 Bellrock Gypsum Ind Ltd Building units
US2897741A (en) * 1957-03-19 1959-08-04 Hans A Mauch Ventilator cover

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US525202A (en) * 1894-08-28 Jean benoit granjon and camille bellon
CH15109A (en) * 1897-09-30 1898-04-30 E Brunner Insulating body
US948541A (en) * 1908-03-23 1910-02-08 Clyde J Coleman Heat-insulating wall.
US1526470A (en) * 1923-10-01 1925-02-17 George Hives Dawson Structural material
US1970803A (en) * 1932-10-03 1934-08-21 Johnson John Herbert Method of making an inflatable rubber structure
US2226201A (en) * 1938-08-01 1940-12-24 Freyssinet Eugene Jack apparatus
US2426796A (en) * 1945-06-27 1947-09-02 Fred F Stadelhofer Concrete wall form
FR933711A (en) * 1946-09-18 1948-04-29 Rapid construction process for walls and partitions, and materials used in its execution
US2681562A (en) * 1951-06-07 1954-06-22 Clarke Lawrence Concrete wall
US2892339A (en) * 1952-02-04 1959-06-30 Bellrock Gypsum Ind Ltd Building units
US2840353A (en) * 1952-08-29 1958-06-24 Paul M Muspratt Radiant heating panel
US2737204A (en) * 1952-09-16 1956-03-06 Bonte Fred E La Conduit structure
GB725832A (en) * 1953-02-25 1955-03-09 Lawrence Clarke Concrete walls
US2794233A (en) * 1954-03-24 1957-06-04 Alden D Morton Method of and apparatus for molding cavities in settable molding material
US2897741A (en) * 1957-03-19 1959-08-04 Hans A Mauch Ventilator cover

Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3331170A (en) * 1962-12-29 1967-07-18 Lowe & Rodin Preassembled subenclosures assembled to form building construction
US3388509A (en) * 1965-03-09 1968-06-18 Raul L. Mora Inflatable construction panels and method of making same
US3495367A (en) * 1965-12-21 1970-02-17 Hideya Kobayashi Precast lightweight reinforced concrete plank
FR2088208A1 (en) * 1970-05-28 1972-01-07 Citroen Sa
US3663347A (en) * 1970-07-16 1972-05-16 Nasa Honeycomb panels formed of minimal surface periodic tubule layers
US3789094A (en) * 1971-05-06 1974-01-29 Monostruct Corp Ltd Method of producing a molded foamed structural member having a honeycomb core adapted for venting
USRE29517E (en) * 1971-06-25 1978-01-17 Composite wall element for thermal and acoustic insulation
US3803784A (en) * 1971-06-25 1974-04-16 O Becker Composite wall element for thermal and acoustic insulation
US3862736A (en) * 1973-01-04 1975-01-28 Dearborn Rubber Corp Device for forming polygonal voids in concrete members
US3922413A (en) * 1974-06-03 1975-11-25 Richard G Reineman Lightweight, high strength, reinforced concrete constructions
US4233787A (en) * 1978-07-17 1980-11-18 Maso Therm Corporation Composite building module and method for making same
US4318251A (en) * 1980-02-22 1982-03-09 Winkler Marshall N Inflatable and automatically deployable heat blanket
WO1988003086A1 (en) * 1986-10-24 1988-05-05 Patterson Fred R Variable geometry core structure
US4940364A (en) * 1988-10-14 1990-07-10 Dlugosz Leonard T Concrete construction units and multi-ply concrete composites made therefrom
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