AU736639B2 - Concrete building blocks - Google Patents
Concrete building blocks Download PDFInfo
- Publication number
- AU736639B2 AU736639B2 AU47628/97A AU4762897A AU736639B2 AU 736639 B2 AU736639 B2 AU 736639B2 AU 47628/97 A AU47628/97 A AU 47628/97A AU 4762897 A AU4762897 A AU 4762897A AU 736639 B2 AU736639 B2 AU 736639B2
- Authority
- AU
- Australia
- Prior art keywords
- block
- blocks
- corner
- panel
- panels
- 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.)
- Ceased
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
- E04B2/42—Walls having cavities between, as well as in, the elements; Walls of elements each consisting of two or more parts, kept in distance by means of spacers, at least one of the parts having cavities
- E04B2/44—Walls having cavities between, as well as in, the elements; Walls of elements each consisting of two or more parts, kept in distance by means of spacers, at least one of the parts having cavities using elements having specially-designed means for stabilising the position; Spacers for cavity walls
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
- E04B2/14—Walls having cavities in, but not between, the elements, i.e. each cavity being enclosed by at least four sides forming part of one single element
- E04B2/16—Walls having cavities in, but not between, the elements, i.e. each cavity being enclosed by at least four sides forming part of one single element using elements having specially-designed means for stabilising the position
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
- E04B2/42—Walls having cavities between, as well as in, the elements; Walls of elements each consisting of two or more parts, kept in distance by means of spacers, at least one of the parts having cavities
- E04B2/54—Walls having cavities between, as well as in, the elements; Walls of elements each consisting of two or more parts, kept in distance by means of spacers, at least one of the parts having cavities the walls being characterised by fillings in all cavities in order to form a wall construction
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
- E04B2002/0202—Details of connections
- E04B2002/0204—Non-undercut connections, e.g. tongue and groove connections
- E04B2002/0208—Non-undercut connections, e.g. tongue and groove connections of trapezoidal shape
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
- E04B2002/0202—Details of connections
- E04B2002/0204—Non-undercut connections, e.g. tongue and groove connections
- E04B2002/023—Non-undercut connections, e.g. tongue and groove connections with rabbets, e.g. stepped
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Revetment (AREA)
- Finishing Walls (AREA)
- Building Environments (AREA)
- Road Paving Structures (AREA)
Description
AUSTRALIA
Patents Act 1990 COMPLETE SPECIFICATION STANDARD PATENT Applicant(s): TONY J AZAR Invention Title: CONCRETE BUILDING BLOCKS The following statement is a full description of this invention, including the best method of performing it known to me/us: CONCRETE BUILDING BLOCKS Field of the Invention The present invention relates to the field of building blocks, in particular concrete building blocks. The present invention provides a novel dry stack building block, in a stretcher embodiment, and a corner embodiment.
Background of the Invention Building blocks, in particular concrete building blocks, are used extensively in the construction of walls, 0.1c both below grade in the case of foundation walls, and above grade, in the case of structural walls. Concrete blocks generally have hollow cores, planar, rectangular faces, and rectangular ends and upper and lower surfaces. They are ordinarily stacked in a stretching bond: pattern, with mortar between each course of blocks, and between each block in a S"course. As required, rebar may be inserted in the cores of the blocks, after stacking, and the cores may be filled with concrete. There have, moreover, been attempts to develop concrete blocks with dry stacking capability. For instance, in U.S. Patent No. 5,230,194 to McClure, a block is described with front and back faces that are offset slightly from the upper and lower surfaces, and the ends of the block. This feature permits the blocks to be dry stacked and interlocked. However, no satisfactory means for forming a corner is disclosed by McClure, who instead discloses an L-shaped corner suitable for one-way, right or left usage.
In U.S. Patent No. 4,597,236 (Braxton), a dry-stack block is disclosed that relies on the use of spines insertable between blocks in a stacked wall. Braxton discloses corners constructed from blocks that are smaller than the remaining blocks in this system, and which do not permit the use of a stretcher bond pattern of block laying.
1*c In view of the foregoing, the object of the present invention is to provide a novel dry stacking, interlocking concrete block that has a stretcher and corner embodiment of similar overall dimensions. Such a block can be utilized to dry stack a wall, with such corners as are desired by the builder rather than dictated by the block, in the ""traditional strong stretcher bond pattern of block laying.
A further object of the present invention is to provide a dry stack block that is provided with a surface that is grooved to permit fast and efficient drainage from the faces thereof.
-2- 3 According to the present invention there is provided interfitting building blocks for wall construction, including straight stretcher blocks for constructing courses, and corner blocks, each said stretcher block comprising a building block having opposite first and second ends and comprising first and second substantially congruent rectangular side panels extending between said ends of said block, said panels being joined together by at least one web extending transverse to said panels, said panels each having vertical end edges at the respective first and second ends of the building block, the end edges being notched to interfit with end edges of panels of an adjacent block in a vertical joint therewith, the notches *o.
being vertically extending on the respective end edges and 15 being disposed such that at the first end of said block, i the notch of the first panel is on an inside corner and the notch on the second panel is on an outside corner, and such that at the second end of said block, the notch on the first panel is on an outside corner and the notch on 20 the second panel is on an inside corner, each said panel including a lower edge and an outer surface; the lower edge of each panel being provided with a downwardly projecting lip substantially adjacent said outer surface, said block further having an upper side, portions of said upper side of said block being spaced inwardly from said outer surface of said panels projecting upwardly, whereby one said block laid on another said block will interfit therewith each said corner block having opposed first and second ends and comprising spaced apart first and second substantially congruent rectangular side panels, each said RA side panel having an outer surface, an end panel joining said side panels at the first end of said corner block, W and a web extending between said side panels spaced H:\HelenF\Keep\speci\47628.97SPFC[.doc 12/06/01 3A inwardly from the second end of said block, the end edges of said side panels adjacent said web being notched to interfit with the end edges of a said stretcher block in a vertical joint therewith, one said side panel being provided on its outer surface with a pair of vertically extending grooves spaced apart so as to interfit with the end edges of said first end of a said stretcher block, and the opposed side panel being provided on its outer surface with a pair of vertically extending grooves spaced apart so as to interfit with the end edges of the second end of one said stretcher block, whereby a T-shaped construction, S" with a flush outer surface, can be formed with a corner S*o: block and a pair of stretcher blocks interfit with the corner block at right angles thereto, each said side panel of a said corner block having a lower edge, the lower edge of each said side panel being provided with a downwardly projecting lip substantially adjacent the outer surface, said lip of each said side panel being notched adjacent the end panel and at a point inwardly thereof 20 corresponding to the width of one said block, said corner :block also having an upper side, portions of said upper side of said corner block spaced inwardly from said outer surface of each said side panel projecting upwardly, to interfit with the notches in the lips of the lower edges of the side panels of another of said corner blocks when a pair of the corner blocks are laid on one another at right angles.
H: \He IenF~\Keep\speci \47628.97 SPEC I .doc 12/06/01 3B e e.
*eee *eeee ee** *eeee oo* oo* o*o good* Brief Description of the Drawings In drawings that illustrate the present invention by way of example: Figure 1 is a perspective view from the underside, of a stretcher block according to the present invention; Figure 2 is a top view of the block shown in Figure 1; Figure 3 is an underside view of the block shown in Figure 1; Figure 4 is a side view of the block shown in Figure 1; Figure 5 is one end view of the block shown in Figure 1; Figure 6 is the other end view of the block shown in Figure 1; Figure 7 is a perspective view, from the underside, of a corner block according to the present invention; Figure 8 is an underside view of the block shown in Figure 7; Figure 9 is a top view of the block shown in Figure 7; Figure 10 is a view of one side of the block shown in Figure 7; Figure 11 is a view of the other side of the block shown in Figure 7; Figure 12 is a view of one end of the block shown in Figure 7; Figure 13 is a view of the other end of the block shown in Figure 7; Figure 14 is a top view of a corner constructed with a stretcher block and corner block according to the present S. invention; and Figure 15 is a top view of a T-intersection constructed with two stretchers and a corner block according to the 15 present invention, with the stretchers illustrated slightly *eeee.
separated from the corner to better shown the joints between the stretchers and corner blocks.
Detailed Description .Referring now to Figure 1 6, the basic concrete stretcher block 1 according to the present invention is illustrated. It comprises a front face 2, and rear face 3, which are substantially identical and interchangeable. The faces 2,3 are provided on their surfaces with grooves 4 that extend vertically, and serve to channel water from the face -4of the blocks. The presence of grooves 4 is especially important for sub-grade applications, in which fill has been compacted against the exposed face of the blocks.
The faces 2,3 are joined together by webs 5, each of which has a broad outer ends 6 that taper inwardly to a narrower central portion 7. The thickened outer ends 6 of the webs 5 provide increased stability for the blocks during curing, while the narrower central portions of the webs advantageously permit the blocks to be lightened in weight, "ewhile providing adequate support during curing. Referring to Figures 5 and 6, it will also be noted that the central portion of the web is provided with a shallow channel 8 along its upper and lower surfaces. The purpose of these channels is to permit concrete that is poured into the 5interior of a wall constructed with the blocks of the present invention to flow between the blocks, and thereby lock adjoining blocks together securely upon curing.
As best illustrated in Figures 1, 5 and 6, the front and rear faces 2,3 of the blocks protrude downwardly slightly from the lower surface 9 of the webs 5. The upper surface 10 of the webs 5 and the adjoining body 11 of the block extend upwardly slightly from the faces 2,3 of the block, in a complementary shape, to permit a stretcher 1 to interlock with another stretcher along the upper and lower surfaces thereof.
Referring to Figures 1, 2 and 3, it will be seen that the ends of the stretcher block of the present invention are provided with offset square notches 12. By the term "offset" is meant that the notch 12 on one face of an end will be on the outside of the block face, while the notch on the other face of the same end will be on the inside of the block face, as can be seen in Figure 2 or 3. By offsetting such notches 12, any two stretchers may be placed in adjoining relation, without orienting either face 2,3 of the block in a particular direction. The notches also serve to interlock the stretcher blocks with the corner blocks, as will be explained below.
With reference to Figures 7 13, the present invention provide a corner block 13, for use with the stretcher block of the present invention. The corner block 13 has side faces 14, 15 corresponding to the front and rear faces 2,3 of the stretcher. The side faces of the corner block are provided with grooves 4 similar to the grooves on the stretchers 1. Moreover, squared notches 16 are also formed in the side faces 14, 15 of the corner block, spaced apart so as to interfit with the notches ends of the stretchers, -6as can be seen in Figures 14 and 15. It will be noted, moreover, that the notches 16 formed in one face of the corner block are offset relative to the notches formed in the other face. This arrangement permits a stretcher 1 to be interfit with a corner block on either side of same, whereby T junctions can be formed, as shown in Figure Also, with this arrangement it is not necessary to provide a different block for right and left corners, also as illustrated in Figure Directly beneath each notch 16, in the vertical face of the corner block is formed a notch 17, the function of which is to permit corner blocks to be stacked vertically at right angles to one another in a chimney bond pattern, to form the corner of a wall.
The ends of the corner blocks 13 are notched in ,a S" manner similar to the stretcher blocks 1, to permit interfit therewith.
The blocks of the present invention may be fabricated from any suitable concrete, as will be a matter of choice for one skilled in the art. A suitable concrete mix is as set out below: -7- 8 CONCRETE MIX DESIGN ~5 SAND 1010 KG Source "E E McLaughlin Ltd." STONE 1050 KG Source "Lafarge Matel Manitoulin" PORTLAND 154 KG Source "St. Laurence Cement" SLAG 66 KG Source "St. Laurence Cement" AIR 25ml per 100/kg of cement WR 250ml per 100/kg of cement WATER 150 Lt.
rials, Agg's WEIGHTS PER CUBIC METER (SATURATED, SURFACE-DRY) It is to be understood that the examples described above are not meant to limit the scope of the present invention. It is expected that numerous variants will be obvious to the person skilled in the field of concrete and masonry block design without any departure from the spirit of the invention. The appended claims, properly construed, form the only limitation upon the scope of the invention.
In this specification, unless the context requires otherwise, the words "comprise", "comprises", and "comprising" mean "include", "includes" and "including", respectively. That is, when the invention is described or defined as comprising specified features, various embodiments of the same invention may also include additional features.
Claims (9)
1. Interfitting building blocks for wall construction, including straight stretcher blocks for constructing courses, and corner blocks, each said stretcher block comprising a building block having opposite first and second ends and comprising first and second substantially congruent rectangular side panels extending between said ends of said block, said panels being joined together by 10 at least one web extending transverse to said panels, said 0 panels each having vertical end edges at the respective *s first and second ends of the building block, the end edges 0 being notched to interfit with end edges of panels of an adjacent block in a vertical joint therewith, the notches 15 being vertically extending on the respective end edges and being disposed such that at the first end of said block, S.the notch of the first panel is on an inside corner and 0 the notch on the second panel is on an outside corner, and 0 such that at the second end of said block, the notch on 20 the first panel is on an outside corner and the notch on the second panel is on an inside corner, each said panel including a lower edge and an outer surface; the lower edge of each panel being provided with a downwardly projecting lip substantially adjacent said outer surface, said block further having an upper side, portions of said upper side of said block being spaced inwardly from said outer surface of said panels projecting upwardly, whereby one said block laid on another said block will interfit therewith each said corner block having opposed first and second ends and comprising spaced apart first and second R substantially congruent rectangular side panels, each said side panel having an outer surface, an end panel joining said side panels at the first end of said corner block, H: He IenF\Keep\speci\47628 .97 SPEC I -doe 12/06/01 10 and a web extending between said side panels spaced inwardly from the second end of said block, the end edges of said side panels adjacent said web being notched to interfit with the end edges of a said stretcher block in a vertical joint therewith, one said side panel being provided on its outer surface with a pair of vertically extending grooves spaced apart so as to interfit with the end edges of said first end of a said stretcher block, and the opposed side panel being provided on its outer surface with a pair of vertically extending grooves spaced apart so as to interfit with the end edges of the second end of one said stretcher block, whereby a T-shaped construction, with a flush outer surface, can be formed with a corner block and a pair of stretcher blocks interfit with the 15 corner block at right angles thereto, each said side panel i of a said corner block having a lower edge, the lower edge of each said side panel being provided with a downwardly projecting lip substantially adjacent the outer surface, said lip of each said side panel being notched adjacent 20 the end panel and at a point inwardly thereof corresponding to the width of one said block, said corner block also having an upper side, portions of said upper side of said corner block spaced inwardly from said outer surface of each said side panel projecting upwardly, to interfit with the notches in the lips of the lower edges of the side panels of another of said corner blocks when a pair of the corner blocks are laid on one another at right angles.
2. The blocks as claimed in claim 1, wherein said notches are squared. H:\HelenF\Keep\speci\4762897SPECIrdoC 12/06/01 11
3. The blocks as claimed in claim 1 or 2, wherein each said panel has an outer surface the outer surface of each said panel being provided with spaced vertically extending grooves therein to permit moisture to drain from the outer surface thereof.
4. The blocks as claimed in any one of claims 1 to 3, wherein each said web has an upper surface and a lower surface that is provided with a shallow groove therein.
5. The blocks as claimed in any one of claims 1 to 4, wherein each said web is tapered in its middle portion between said panels.
6. The blocks as claimed in any one of claims 1 to *I including two said webs, spaced apart so as to form a hollow vertical core therebetween. S
7. The blocks as claimed in claim 6, wherein said webs "20 are spaced apart by a distance of about half the length of .a said block, with a distance of about one quarter the length of a said block between a web and the end of a block.
8. The blocks as claimed in any one of the preceding claims, wherein all parts of a said block are integrally formed from concrete. H: \He IenF\eep\speci \47628. 97 SPEC doc 12/06/01 12
9. Interfitting building blocks including stretcher blocks and corner blocks substantially as hereinbefore described with reference to the accompanying figures. Dated this 12 t h day of June 2001 TONY J AZAR By their Patent Attorneys GRIFFITH HACK Fellows Institute of Patent and Trade Mark Attorneys of Australia *e H:\HelenF\Keep\speci\47628.97SPECI .doc 12/06/01
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US76198396A | 1996-12-11 | 1996-12-11 | |
| US08/761983 | 1996-12-11 | ||
| US08/974,726 US6226951B1 (en) | 1996-12-11 | 1997-11-19 | Concrete building blocks |
| US08/974726 | 1997-11-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU4762897A AU4762897A (en) | 1998-06-18 |
| AU736639B2 true AU736639B2 (en) | 2001-08-02 |
Family
ID=27117056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU47628/97A Ceased AU736639B2 (en) | 1996-12-11 | 1997-12-09 | Concrete building blocks |
Country Status (8)
| Country | Link |
|---|---|
| AU (1) | AU736639B2 (en) |
| CA (1) | CA2222004C (en) |
| DE (1) | DE19754922C2 (en) |
| FR (1) | FR2756857B1 (en) |
| GB (1) | GB2320266B (en) |
| IL (1) | IL122512A (en) |
| IT (1) | IT1304601B1 (en) |
| NZ (1) | NZ329270A (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2277469B1 (en) * | 2003-05-29 | 2008-07-01 | Permor S.A. | BUCKETS MACHIHEMBRADOS CANTONEROS AND INTERMEDIOS WITH HORIZONTAL AND VERTICAL COUPLING FOR CONSTRUCTION. |
| GB2402682B (en) * | 2003-11-12 | 2005-05-11 | David Watson | A building method and mould units |
| FR2900427B1 (en) * | 2006-04-27 | 2010-08-13 | Fabemi Gestion | PREFABRICATED CONCRETE BLOCK WITH ALLOY OF VERTICAL CHAINING OF EXTENDED SHAPE |
| DE102007056265A1 (en) * | 2007-11-22 | 2009-05-28 | Reinhold Moser | Manually-processable wall building block for e.g. use as supporting brick, has edge-sided guide rails and openings that are formed in such manner that form-fit connection is producible between adjacent wall building blocks |
| WO2010013991A1 (en) * | 2008-07-30 | 2010-02-04 | Alvarez Moysen Arturo Ramon | System of blocks for building walls |
| CN101748842A (en) * | 2010-01-05 | 2010-06-23 | 梁林华 | Wall module |
| CN102409781B (en) * | 2010-09-17 | 2014-07-09 | 北京仁创科技集团有限公司 | Bearing structure and house structure |
| CN102635191B (en) * | 2012-05-07 | 2013-10-23 | 湘潭市格物节能建材有限公司 | Concrete block and concrete masonry |
| FR2991353B1 (en) * | 2012-06-05 | 2016-07-01 | Jean Yves Moulin | BUILDING BRICK FOR DRY INSTALLATION |
| WO2014200444A1 (en) * | 2013-06-14 | 2014-12-18 | Thoopphonthap Phiproei | Concrete block steel reinforcement wall panel having a channel and a slot on front face |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2294776A (en) * | 1941-01-09 | 1942-09-01 | Miles E Freeman | Building block |
| US2749739A (en) * | 1951-06-06 | 1956-06-12 | Prec Building System Inc | Interlocking corner block |
| GB2060026A (en) * | 1979-10-16 | 1981-04-29 | Coelho Dos Santos J | Building blocks |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2684589A (en) * | 1948-02-07 | 1954-07-27 | Formbloc Inc | Interlocking hollow building block |
| GB654057A (en) * | 1948-05-21 | 1951-06-06 | Alan Bolver Lister | Improvements in building blocks |
| GB693536A (en) * | 1950-09-27 | 1953-07-01 | Ronald George Snell | Improvements in or relating to pre-cast building units for use in cavity wall structures |
| DE1659120A1 (en) * | 1968-02-16 | 1971-12-23 | Josef Hehn | Hollow formwork blocks |
| DE1989170U (en) * | 1968-02-16 | 1968-07-11 | Josef Hehn | FORMWORK COLLAR |
| US4075808A (en) * | 1974-11-25 | 1978-02-28 | Sanford Pearlman | Building construction system using mortar-less modular building block elements |
| FR2396135A1 (en) * | 1977-06-27 | 1979-01-26 | Hapel Et Cie Bureau Etudes Tec | ASSEMBLABLE AGGLOMERS BY SNAP |
| DE2921113A1 (en) * | 1979-05-25 | 1980-12-04 | Hans Mumm | FORMWORK STONE |
| GB2088433A (en) * | 1980-11-25 | 1982-06-09 | Newlay Concretes Ltd | Hollow Building Block |
| GB2197358A (en) * | 1985-07-12 | 1988-05-18 | Juan Haener | Interlocking building block |
-
1997
- 1997-11-25 CA CA002222004A patent/CA2222004C/en not_active Expired - Fee Related
- 1997-11-27 NZ NZ329270A patent/NZ329270A/en unknown
- 1997-12-01 FR FR9715084A patent/FR2756857B1/en not_active Expired - Fee Related
- 1997-12-03 GB GB9725644A patent/GB2320266B/en not_active Expired - Fee Related
- 1997-12-09 AU AU47628/97A patent/AU736639B2/en not_active Ceased
- 1997-12-09 IL IL12251297A patent/IL122512A/en not_active IP Right Cessation
- 1997-12-10 DE DE19754922A patent/DE19754922C2/en not_active Expired - Fee Related
- 1997-12-11 IT IT1997UD000235A patent/IT1304601B1/en active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2294776A (en) * | 1941-01-09 | 1942-09-01 | Miles E Freeman | Building block |
| US2749739A (en) * | 1951-06-06 | 1956-06-12 | Prec Building System Inc | Interlocking corner block |
| GB2060026A (en) * | 1979-10-16 | 1981-04-29 | Coelho Dos Santos J | Building blocks |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9725644D0 (en) | 1998-02-04 |
| DE19754922C2 (en) | 2002-03-28 |
| IT1304601B1 (en) | 2001-03-19 |
| FR2756857B1 (en) | 2000-05-05 |
| DE19754922A1 (en) | 1998-07-30 |
| IL122512A (en) | 2002-02-10 |
| IL122512A0 (en) | 1998-08-16 |
| FR2756857A1 (en) | 1998-06-12 |
| CA2222004C (en) | 2001-08-07 |
| ITUD970235A1 (en) | 1999-06-11 |
| AU4762897A (en) | 1998-06-18 |
| CA2222004A1 (en) | 1998-06-11 |
| NZ329270A (en) | 1999-04-29 |
| GB2320266A8 (en) | 1998-12-29 |
| GB2320266B (en) | 2001-04-25 |
| GB2320266A (en) | 1998-06-17 |
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| WO1984001594A1 (en) | Masonry blocks |
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