US2861388A - Structural toy and model building set - Google Patents

Structural toy and model building set Download PDF

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Publication number
US2861388A
US2861388A US303849A US30384952A US2861388A US 2861388 A US2861388 A US 2861388A US 303849 A US303849 A US 303849A US 30384952 A US30384952 A US 30384952A US 2861388 A US2861388 A US 2861388A
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walls
base
projection
recess
square
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US303849A
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Favaretto Gianni
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Favaretto Gianni
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    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63HTOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H33/00Other toys
    • A63H33/04Building blocks, strips, or similar building parts
    • A63H33/06Building blocks, strips, or similar building parts to be assembled without the use of additional elements
    • A63H33/08Building blocks, strips, or similar building parts to be assembled without the use of additional elements provided with complementary holes, grooves, or protuberances, e.g. dovetails
    • A63H33/088Building blocks, strips, or similar building parts to be assembled without the use of additional elements provided with complementary holes, grooves, or protuberances, e.g. dovetails with holes
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63HTOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H33/00Other toys
    • A63H33/04Building blocks, strips, or similar building parts
    • A63H33/06Building blocks, strips, or similar building parts to be assembled without the use of additional elements
    • A63H33/08Building blocks, strips, or similar building parts to be assembled without the use of additional elements provided with complementary holes, grooves, or protuberances, e.g. dovetails
    • A63H33/086Building blocks, strips, or similar building parts to be assembled without the use of additional elements provided with complementary holes, grooves, or protuberances, e.g. dovetails with primary projections fitting by friction in complementary spaces between secondary projections, e.g. sidewalls

Description

Nov. 25, 1958 G. r-1\v.\RETrcJ STRUCTURAL TOY AND MODEL BUILDING SET Filed Aug. 12, 1952 FIG. 4.
United States Patent O STRUCTURAL TOY AND MODEL BUILDING SET GianniFavaretto, Bergamo, Italy Application August 12, 1952, Serial No. 303,849
Claims priority, application Italy August 14, 1951 9 claims. (c1. t6-16.)
This invention relates to devices comprising a set of structural elements adapted to be connected together 4by means of projections on and sockets in said elements, in order to build toys and models. 4
A chief object of this invention is to provide elements of very light weight, capable of rm reciprocal connection by engagement over the widest possible surface with respect to the cross section of the elements.
According to this invention a set of structural elements for building toys and models, comprises prismatic hollow blocks provided with at least one projection on one side, adapted to penetrate into the bore in the adjacent element, said projection being hollow and of square section.
The invention shall be described with reference to the accompanying drawing, wherein:
Figure l is a perspective view of a single element;
Figures 2 and 3 are a longitudinal section and perspective view, respectively, of a double element;
Figure 4 is a perspective view of a triple corner element;
Figure 5 is a perspective view of a double auxiliary element;
Figure 6 shows a modification of Figure 3;
Figure 7 shows a modification of Figure 1;
Figure 8 shows a modification of Figure 7 with a lateral extension;
Figure 9 is a perspective view of a simple auxiliary element having two lateral extensions;
Figure 10 is a perspective view of an element according to Figure l, having two lateral extensions;
Figure 1l shows a modification of Figure 9;
Figure 12 is a perspective view of an element according to Figure 3, provided with two lateral extensions;
Figure 13 is a perspective view showing a corner structure built by means of elements according to Figure 3;
Figure 14 is a perspective view of a corner structure built by means of modifications of the elements shown in Figures l, 3 and 4;
Figures 15 and 16 are plan views showing two courses of elements for building a T-structure;
Figure 17 is a sectional view showing a structure composed of the previously illustrated elements;
Figure 18 is a vertical section showing a box and cover;
Figure 19 is a part sectional view of a panel.
The fundamental structural element shown in Figure l consists of a block B of prismatic shape, formed with an inner bore of square section, open towards the outside at two opposed block faces. At one of the open faces the block B is formed with a hollow extension A of square section, smaller in height than the block B and of a cross sectional area such as to permit a tight iit into the bore inthe block B of an adjacent element of the set.
The double element shown in Figures 2 and 3 comprises a block B formed with two -bores with parallel axes and two corresponding hollow projections A.
The triple corner element shown in Figure 4 comprises a block B' formed with three bores having parallel axes and three corresponding hollow projections A' of square section.
"ice
The auxiliary element shown in Figure 5 is similar to the element shown in Figure 3, but is deprived of projec-v tions A. lts bottom can be closed, if desired.
The elements shown in Figures 6 and 7 are similar to those shown in Figures l and 3, but are formed with a wall C greater in thickness which permits of building panels provided with protruding portions.
The elements shown in Figures 8 to l2 serve for connecting in the various directions further similar contiguous elements and are formed for this purpose with projections D of U-section, extending perpendicular to the common axis of the bores in the block B and projection A.
Figure 13 clearly shows the manner of building by means of elements of the type shown in Figure 3 only, walls, for instance of building models, with staggered joints between the elements. Figure 14 shows the manner of forming re-entering portions in the walls by utilizing elements formed with walls C of greater thickness.
Figures l5 and 16 show the manner of connecting the elements in the second course with staggered joints by utilizing elements of the type referred to by 4 in Figure 16.
In Figure 17, 5 denotes the element shown in Figure 5. It will be obvious that, since its projections A are shorter than the height of the element B, two projections A can be iitted from opposite sides into one and the same element 5.
The box shown in Figure 18 comprises a base panel obtained from elements as shown in Figures 1 and 5, lower edges obtained from elements 12 as shown in Figure 12, side walls obtained from elements according to Figure 1 and an inner bead on said side walls obtained by fitting elements 6 according to Figure 6. The cover abutting said bead is formed from elements according to Figure l, elements 3 according to Figure 3 and an element 5 which is utilized as a handle for the cover.
In Figure 19, D denotes a wire or band -serving for additionally connecting together the elements as shown in Figure 2 to form a panel.
From the preceding description it will be understood that, the bore in the block B being wide enough to leave only a lateral block wall of small thickness, the block is extremely light in weight-with respect to blocks proposed heretofore. Moreover, the square cross sectional shape of the hollow projections A prevents reciprocal rotation of the interlocked elements.
The above described elements are conveniently made by injection moulding from plastic material and can be of any desired color, transparent or translucid.
They can be employed for building a large variety of structures for use either as toys, architectural models or the like.
What I claim is:
l. A set of structural members adapted to be connected by means of projections and recesses for forming various disassemblable articles, including a plurality of elements each of which comprises a hollow prismatic body having two opposed parallel base faces and an even number of side walls each situated at right angles with respect to the said base faces and the adjacent side walls, the body being provided with at least one recess which is square in section and extends from one base face within the body with its axis perpendicular to the said base face and which has at least two of its walls formed by the side walls of the said body and an open-ended tubular projection extending from the other base face of the body coaxially with each said recess, said projection being square in cross section and of a size to tit the recess in a similar superposed element, the inside of veach said tubular projection communicating with the corresponding recess in the body and said projection having a height in an axial direction substantially greater than half the height of said body, said members Ibeing assemblableinto a continuous wall structure by interengaging the members of one course of the wall structure in staggered relationship with respect to the members of the subjacent and sup'erposedv courses to define a plurality of hollow columns extending vertically through the wall structure for reception of tie means extending upwardly through one column and downwardly through the next adjacent column and overlying the end edges of the members at the top and at the bottom of -the wall structure to hold said wall structure as a'n inseparable u'nit resistant to accidental disassembly.
2. A set of structural members as claimed in claim 1, wherein said elementsinclude one or'm'o're elements each having the form of a right' angled bodywith. three equal recesses and three equal projections so located on opposite base faces of the body that the whole element is symmetrical with respect to a plane bisecting the angle between the two branches of the body.
3. A set of structural members as claimed in claim l, wherein said elements include one or more elements each having on one of the side walls of the body thereof at least o-ne U-shaped projection that is Asquare in section and adapted to fit the recesses in the bodies of the other elements of the set, said projection having an open side facing in the direction ofY one ofv said base faces.
4. A set of structural members as claimedl in claim 1, wherein said elements include one or more elements each having on two opposed side walls of the body at -least one U-shaped projection that is square in section and adapted to t the recesses in the bodies of the' other' elements of the set, said projection having an open side facing in the direction of one of said base faces.
5. A set of structural members as claimed in claim 1, wherein said elements include one or more-elements each having a body that is square in cross section and that isl provided with one recess and one projection, th'e common axis of which is aligned with the axis of the body.
6. A set of structural members as claimed inclaim 1, wherein said elements include one or' 'more elements each having a body that is rectangular in cross section and that has a plurality of aligned recesses andprojections respectively of the same size and having their axes lying in the central longitudinal plane of the element.
7. A set of structural members adapted to bevc'on# nected by means of projections and recesses for forming various disassemblable articles, including a plurality of elements each of which comprises a hollow prismatic body having two opposed parallel base faces and an even number of side walls each situated at right angles with respect to the said base faces and the adjacent side walls, the body being provided with at least one recess which is square in section and extends from one base face within the body with its axis perpendicular to the said base face and which has at least two of its walls formed by the side walls of' the said body and an open-ended tubular projection extending from the other base .face of the body coaxially with each said recess, said projection 'being square in cross section and of a size to fit the recess in a similar superposed element, the inside of each said tubular projection communicating with the corresponding recess in the body and said projection having a height in an axial direction substantially greater than half the height of said body, said elements including at least one element having the form of a right angled body with three equal recesses and three equal projections so located on 4, opposite base-faces of the body that the wholeelement is symmetrical with respect-to a plane bisecting the angle between the two bran-ches of the body, at least one of said elements having the axes of the aligned recesses and projections lying nearer to the inner angular wall of the element than to its outer angular wall.
8. A set of structural members adapted to be connected' by means of projections and recesses for forming various disassemblable articles, including a-. plurality of elements each of which comprises a hollow prismatic body having two opposed parallel base faces and an even number of side walls each situated at right angles with respect to the said base faces and the adjacent side walls, the body being provided with at least one recess which is square in section and extends from one base face within the body with its axis perpendicular to the said base face and which has at least two of its walls formed by the side walls of the said body and an openfended tubular projection extending from the other base face of the body coaxially with each said recess, said projection being square in cross section and of a size to-iit the recess in a similar superposed element, the inside of each said tubular projection communicating with the corresponding recess in the body and said projection having a height in an axial direction substantially greater than half the height of. said body, said. elements` including at least one element having a body that is square in cross section and is provided with one recess and one4 projectionthe common axissofwhichis offsetfrom thevaxis of the body.
A9. A. set of -structural members .adapted to be connected by means of projections and-recesses for forming various-disassembiable articles, including a plurality of elements veach` of which comprises a hollow prismatic body having two Vopposed parallel base faces and an even number of side walls each-situated at right angles with respect to the said base -faces and the adjacent side walls, the body being provided with at least one recess which is square in section and extends from one base facewithin the body with its axis perpendicularto the saidbase face and which has at least two of its walls formed vby the side walls of the said body and an open-ended tubular projection extending from the other base face of the body coaxially with each saidrrecess, said projection being square in cross section and of a size to t the recess in a similar superpo-sed element, the inside of each said tubular projection communicating with the corresponding recess in the body and said projection having a height in an axial direction substantially greater than half the height of said body, said elements including at least one element having a 'body that is rectangular in crc-ss section and has a plurality of aligned recesses and projections of thesame size and having their axes offset from the central longitudinal plane of the element.
References Cited in the file of this patent UNITED STATES PATENTS 301,158 Ravenscroft July l, 1884 2,493,435 Archambault Ian. 3, 1950 2,610,503 Hall Sept. 16, 1952 FOREIGN PATENTS 110,453 Great Britain Oct. 25, 1917 365,369 Great Britain Jan. 3l, 1932 633,055 Great Britain c Dec. 12, 1949 897,397 France May 22, 1944 656,246 Great Britain Aug. 15, 1951
US303849A 1951-08-14 1952-08-12 Structural toy and model building set Expired - Lifetime US2861388A (en)

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Cited By (64)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3069805A (en) * 1960-02-08 1962-12-25 William M Burrows Amusement device
US3082569A (en) * 1959-12-31 1963-03-26 Korris Products Inc Toy construction
US3101486A (en) * 1962-03-23 1963-08-27 American Radiator & Standard Lavatory fixture
US3139698A (en) * 1961-05-22 1964-07-07 Parker Brothers Inc Set of building blocks wherein each block has connecting means on three surfaces thereof
US3162973A (en) * 1961-06-27 1964-12-29 Interlego Ag Toy building element
US3205611A (en) * 1964-02-06 1965-09-14 Richard A Onanian Hollow blocks and tubular connecting means therefor
US3222830A (en) * 1963-03-04 1965-12-14 George R Ivany Wall construction and module
US3274728A (en) * 1959-02-16 1966-09-27 Koch Fritz Construction toy
US3315376A (en) * 1965-07-12 1967-04-25 Ruth A Nielsen Educational toy
US3355837A (en) * 1965-02-25 1967-12-05 Harlan H Pedersen Construction toy
US3367063A (en) * 1960-10-25 1968-02-06 Bondesen Erik Polyhedronal elements having connector elements extending through adjacent walls
US3368316A (en) * 1965-01-04 1968-02-13 William E. Crowder One-piece hollow block with double thickness connecting ears
US3389493A (en) * 1966-02-08 1968-06-25 Zysset Karl Building block toy set
US3391705A (en) * 1965-07-01 1968-07-09 Halvin Products Co Inc Valve
US3415007A (en) * 1963-07-26 1968-12-10 August Wilhelm Howe Toy building set
US3487579A (en) * 1966-02-01 1970-01-06 David L Brettingen Blocks including means for interlocking them at plural angles
US3496670A (en) * 1968-01-18 1970-02-24 Mattel Inc Hollow construction toy with hinged connector
US3577671A (en) * 1969-02-26 1971-05-04 Roy Perry Woollett Construction kits for toys and models
US3603026A (en) * 1970-03-18 1971-09-07 Gakken Co Ltd Fabricating toys
US3822569A (en) * 1971-12-13 1974-07-09 Larsen Knud Lautrup Set including five distinct elements based on a hollow cube
US3845574A (en) * 1973-07-26 1974-11-05 E Majewski Educational game type toy
US3905150A (en) * 1971-12-16 1975-09-16 Perry Ltd E S Blocks having sockets and projections with interference fit
US4080752A (en) * 1975-05-01 1978-03-28 Burge David A Toy blocks with conduits and fluid seal means
US4125973A (en) * 1977-03-28 1978-11-21 Realsources, Inc. Form assembly for building framework
FR2484855A1 (en) * 1980-06-19 1981-12-24 Filature Fse Mohair Sa Construction toy using modular pieces that fit together - has skirt of each piece fitting over male element of next piece
US4309851A (en) * 1979-08-06 1982-01-12 Flagg Rodger H Structure of inflatable tubes with closed loop connectors
US4586302A (en) * 1982-10-09 1986-05-06 Cube-System Gerustbau Gmbh Construction-type support system
US4701131A (en) * 1985-11-20 1987-10-20 Hildebrandt Paul R Geometric modeling kit and method of making same
US4703600A (en) * 1984-04-30 1987-11-03 Suh Kun Hee Vertically assembling box type blocks
US4758195A (en) * 1986-09-08 1988-07-19 3 W Designers, Inc. Elastomeric foam building units
WO1988005684A1 (en) * 1987-02-02 1988-08-11 Kurt Hesse Support device for sectionalized roadways for toy cars
US4813903A (en) * 1986-09-23 1989-03-21 Tomy Kogyo Co., Inc. Block toy with integral drive shaft
US4892484A (en) * 1989-03-06 1990-01-09 Brown Dorothy M Interconnecting toy
US4896472A (en) * 1987-02-05 1990-01-30 Hunt Terence Joseph Building block and system
USRE33785E (en) * 1985-11-20 1991-12-31 Geometric modeling kit and method of making same
US5205772A (en) * 1992-01-21 1993-04-27 Kennard Amy M Segmented toy house construction
US5385472A (en) * 1993-07-26 1995-01-31 Mullin; Keith A. Construction water toy
US5396742A (en) * 1991-04-02 1995-03-14 Cid Associates, Inc. Joining and aligning sleeve for a hazardous material container storage building and related method
USD377532S (en) * 1995-11-07 1997-01-21 Lin Kuo Y Building block
US5845444A (en) * 1994-12-01 1998-12-08 Besche; Charles F. Masonry reinforcement
USD409679S (en) * 1998-03-18 1999-05-11 Interlego Ag Toy building element
US5987840A (en) * 1998-05-28 1999-11-23 Leppert; Jeffrey K. Self-aligning block
USD420062S (en) * 1998-12-21 2000-02-01 Connector Set Limited Partnership Single stud construction toy block
USD420711S (en) * 1998-12-21 2000-02-15 Connector Set Limited Partnership Dual stud construction toy block
USD426588S (en) * 1998-12-21 2000-06-13 Connector Set Limited Partnership Treble stud construction toy block
US6588168B2 (en) * 2001-04-17 2003-07-08 Donald L. Walters Construction blocks and structures therefrom
US6641452B2 (en) 2001-09-05 2003-11-04 Susan J. Racine Building block
US6665994B1 (en) * 2002-06-07 2003-12-23 John Robert Ruggeri Self-aligning building blocks
US20060059824A1 (en) * 2004-09-15 2006-03-23 Austin Barbisch Block structure
US20060075938A1 (en) * 2004-10-12 2006-04-13 Meissen Cynthia R Connector for support structures
US20070214743A1 (en) * 2006-03-17 2007-09-20 Alvarez David J Tile spacer
US20090049776A1 (en) * 2007-08-23 2009-02-26 Matakii O'goshi Lim Stable and efficient building system
US20090113815A1 (en) * 2007-10-26 2009-05-07 Terah Earl Woodcock Tapered Hexagon Building Block
US20090301003A1 (en) * 2006-05-02 2009-12-10 Nunez-Vargas Mariano Wall structure with hollow plastic modules
US20100095631A1 (en) * 2008-10-17 2010-04-22 Cables Raymond W Modular building blocks and building block systems
US8671640B1 (en) * 2010-12-20 2014-03-18 Keith E. Thomas Rapidly locking building/lock components, bridge keys and locking keys to construct uniform whole locked building members and entire locked structures on-the-fly
US20140315465A1 (en) * 2013-04-23 2014-10-23 Hasbro, Inc. Coupling Building Element For A Toy Construction Set
US9021762B1 (en) * 2014-02-06 2015-05-05 Frank DePalma Interlocking concrete blocks with trapezoidal shape
US9074362B1 (en) * 2014-10-15 2015-07-07 Block Florida, LLC Construction blocks and systems
US9133619B1 (en) * 2014-11-20 2015-09-15 Spherical Block LLC Architectural building block
US9677267B2 (en) 2014-10-15 2017-06-13 Block Florida, LLC Construction blocks and systems
US20170173487A1 (en) * 2015-12-18 2017-06-22 Reginald Frederick Woolston Modular Cube Building System
US20180256999A1 (en) * 2017-03-13 2018-09-13 Yush Gupta Block-based construction system
USD873352S1 (en) * 2018-06-27 2020-01-21 Delsun Co., Ltd. Building block

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FR897397A (en) * 1942-09-10 1945-03-20 Block or element for toy construction and games and assemblies formed with this block
GB633055A (en) * 1945-06-25 1949-12-12 Harry Fisher Page Improvements in toy building blocks
US2493435A (en) * 1946-05-31 1950-01-03 Alcide J Arehambault Building block
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US301158A (en) * 1884-07-01 Walteb s
GB110453A (en) * 1916-12-30 1917-10-25 William George Anderson Improvements in Toy Building Blocks.
GB365369A (en) * 1931-02-16 1932-01-21 Leslie Ernest Brougham Improvements in or relating to toy building units
FR897397A (en) * 1942-09-10 1945-03-20 Block or element for toy construction and games and assemblies formed with this block
GB633055A (en) * 1945-06-25 1949-12-12 Harry Fisher Page Improvements in toy building blocks
US2610503A (en) * 1946-05-17 1952-09-16 Clarence C Hall Building block
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Cited By (70)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3274728A (en) * 1959-02-16 1966-09-27 Koch Fritz Construction toy
US3082569A (en) * 1959-12-31 1963-03-26 Korris Products Inc Toy construction
US3069805A (en) * 1960-02-08 1962-12-25 William M Burrows Amusement device
US3367063A (en) * 1960-10-25 1968-02-06 Bondesen Erik Polyhedronal elements having connector elements extending through adjacent walls
US3139698A (en) * 1961-05-22 1964-07-07 Parker Brothers Inc Set of building blocks wherein each block has connecting means on three surfaces thereof
US3162973A (en) * 1961-06-27 1964-12-29 Interlego Ag Toy building element
US3101486A (en) * 1962-03-23 1963-08-27 American Radiator & Standard Lavatory fixture
US3222830A (en) * 1963-03-04 1965-12-14 George R Ivany Wall construction and module
US3415007A (en) * 1963-07-26 1968-12-10 August Wilhelm Howe Toy building set
US3205611A (en) * 1964-02-06 1965-09-14 Richard A Onanian Hollow blocks and tubular connecting means therefor
US3368316A (en) * 1965-01-04 1968-02-13 William E. Crowder One-piece hollow block with double thickness connecting ears
US3355837A (en) * 1965-02-25 1967-12-05 Harlan H Pedersen Construction toy
US3391705A (en) * 1965-07-01 1968-07-09 Halvin Products Co Inc Valve
US3315376A (en) * 1965-07-12 1967-04-25 Ruth A Nielsen Educational toy
US3487579A (en) * 1966-02-01 1970-01-06 David L Brettingen Blocks including means for interlocking them at plural angles
US3389493A (en) * 1966-02-08 1968-06-25 Zysset Karl Building block toy set
US3496670A (en) * 1968-01-18 1970-02-24 Mattel Inc Hollow construction toy with hinged connector
US3577671A (en) * 1969-02-26 1971-05-04 Roy Perry Woollett Construction kits for toys and models
US3603026A (en) * 1970-03-18 1971-09-07 Gakken Co Ltd Fabricating toys
US3822569A (en) * 1971-12-13 1974-07-09 Larsen Knud Lautrup Set including five distinct elements based on a hollow cube
US3905150A (en) * 1971-12-16 1975-09-16 Perry Ltd E S Blocks having sockets and projections with interference fit
US3845574A (en) * 1973-07-26 1974-11-05 E Majewski Educational game type toy
US4080752A (en) * 1975-05-01 1978-03-28 Burge David A Toy blocks with conduits and fluid seal means
US4125973A (en) * 1977-03-28 1978-11-21 Realsources, Inc. Form assembly for building framework
US4309851A (en) * 1979-08-06 1982-01-12 Flagg Rodger H Structure of inflatable tubes with closed loop connectors
FR2484855A1 (en) * 1980-06-19 1981-12-24 Filature Fse Mohair Sa Construction toy using modular pieces that fit together - has skirt of each piece fitting over male element of next piece
US4586302A (en) * 1982-10-09 1986-05-06 Cube-System Gerustbau Gmbh Construction-type support system
US4703600A (en) * 1984-04-30 1987-11-03 Suh Kun Hee Vertically assembling box type blocks
US4701131A (en) * 1985-11-20 1987-10-20 Hildebrandt Paul R Geometric modeling kit and method of making same
USRE33785E (en) * 1985-11-20 1991-12-31 Geometric modeling kit and method of making same
US4758195A (en) * 1986-09-08 1988-07-19 3 W Designers, Inc. Elastomeric foam building units
US4813903A (en) * 1986-09-23 1989-03-21 Tomy Kogyo Co., Inc. Block toy with integral drive shaft
WO1988005684A1 (en) * 1987-02-02 1988-08-11 Kurt Hesse Support device for sectionalized roadways for toy cars
EP0278344A1 (en) * 1987-02-02 1988-08-17 Kurt Hesse Supporting device for toy track sections
US4896472A (en) * 1987-02-05 1990-01-30 Hunt Terence Joseph Building block and system
US4892484A (en) * 1989-03-06 1990-01-09 Brown Dorothy M Interconnecting toy
US5396742A (en) * 1991-04-02 1995-03-14 Cid Associates, Inc. Joining and aligning sleeve for a hazardous material container storage building and related method
US5205772A (en) * 1992-01-21 1993-04-27 Kennard Amy M Segmented toy house construction
US5385472A (en) * 1993-07-26 1995-01-31 Mullin; Keith A. Construction water toy
US5845444A (en) * 1994-12-01 1998-12-08 Besche; Charles F. Masonry reinforcement
USD377532S (en) * 1995-11-07 1997-01-21 Lin Kuo Y Building block
USD409679S (en) * 1998-03-18 1999-05-11 Interlego Ag Toy building element
US5987840A (en) * 1998-05-28 1999-11-23 Leppert; Jeffrey K. Self-aligning block
USD420062S (en) * 1998-12-21 2000-02-01 Connector Set Limited Partnership Single stud construction toy block
USD420711S (en) * 1998-12-21 2000-02-15 Connector Set Limited Partnership Dual stud construction toy block
USD426588S (en) * 1998-12-21 2000-06-13 Connector Set Limited Partnership Treble stud construction toy block
US6588168B2 (en) * 2001-04-17 2003-07-08 Donald L. Walters Construction blocks and structures therefrom
US6641452B2 (en) 2001-09-05 2003-11-04 Susan J. Racine Building block
US6665994B1 (en) * 2002-06-07 2003-12-23 John Robert Ruggeri Self-aligning building blocks
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