Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 7575497 | Erector set for artistic structural designs An erector set for creating artistic structural designs comprising: a base and a set of modular structural elements connectable to one another, said modular structural elements comprising stiff, arcuate members having v-shaped slots in the convex and/or in the conca... | 08/18/2009 |
| 7407425 | Walled structure apparatus A walled structure apparatus generally orientated perpendicular to a horizontal surface, the apparatus including a first panel with a major plane, a corner and a notch, a second panel with a major plane, a corner and a tab received with the notch, and a hinge struct... | 08/05/2008 |
| 7311579 | Block set for assembling a solid creation and apparatus for fabricating block for assembling solid creation A block set for assembling solid creations uses at least two types of cylindrical blocks. The cylindrical blocks are a thin cylindrical block and a thick cylindrical block. The thick cylindrical block may include a hole on a side face thereof for receiving the thin ... | 12/25/2007 |
| 7273404 | Magnetic construction modules for creating three-dimensional assemblies Magnetic structural components utilized to permit construction of a wide variety of structural profiles and to thereby increase design and/or construction flexibility and choice. The structural components each include a number of magnets operatively associated with ... | 09/25/2007 |
| 7189136 | Apparatus for the retention of items An apparatus for retaining children's toys and other materials within a retrievable distance is provided. The apparatus may comprise a generally geometrically-shaped main body with a plurality of integrally formed ribs. The ribs divide the outer periphery of the mai... | 03/13/2007 |
| 7104863 | Product cycle project development A method for teaching production cycle project development utilizing a construction set having at least one construction set component designed to be alterable (e.g., robot) for constructing a user-definable apparatus. The teaching may include providing instructions... | 09/12/2006 |
| 7086923 | Transformable toy furniture and room system A system and method for simulating a wide variety of different toy furniture items including a plurality of three-dimensional predetermined shaped members wherein at least some of the predetermined shaped members are adaptable to be positioned and repositioned adjac... | 08/08/2006 |
| 6718709 | Snap panel display unit A light-weight, portable display system which includes plural, hollow, plastic panels having uniquely contoured corners. The panels may be of flat or curved configuration. Most of the plastic panels are fabricated to present smooth front and rear faces. However, som... | 04/13/2004 |
| 6626732 | Character toy Disclosed is a character toy which can be fabricated with the use of a component pattern sheet for the character toy, on which bodily components of the character toy and component connecting plates are arranged, the bodily components being formed with at ... | 09/30/2003 |
| 6443798 | Building block toy set A building block toy set having flat plate elements containing semi-circular recesses located along the periphery thereof. The flat plate elements are interconnected utilizing various configurations of interconnection elements that are received within the... | 09/03/2002 |
| 6422909 | Genderless construction system A suite of construction toy systems in which mechanical connection is provided by hermaphroditic and functionally identical (genderless) connectors. Both hub-and-rod and building-block construction toy systems are disclosed. In the hub-and-rod constructio... | 07/23/2002 |
| 6398612 | Construction toy interconnector A construction toy is disclosed which interconnects construction toys of different types. One version connects toys of the construction block type to toys of the hub and spoke type. Gripper posts (22) or gripper arms (34 and 46) on the interconnector crea... | 06/04/2002 |
| 6280279 | Self-aligning wing A self-aligning wing structure and method of assembly utilizes a main spar formed with spaced apart notch openings. The main spar is positioned on a substantially flat surface for receiving a plurality of ribs formed with leading edge slot openings and tr... | 08/28/2001 |
| 6231416 | Genderless construction system A suite of construction toy systems in which mechanical connection is provided by hermaphroditic and functionally identical (genderless) connectors. Both hub-and-rod and building-block construction toy systems are disclosed. In the hub-and-rod constructio... | 05/15/2001 |
| 6149487 | Multi-purpose interlocking block A multi-purpose interlocking pentagonal block having five points each formed with a slot, the slot having a width slightly greater than a thickness of the block, two adjacent edges of the block having a notch therebetween, the notch having a width greater... | 11/21/2000 |
| 5910038 | Constructional toy pieces Puzzle pieces and connectors are provided to assemble a large variety of two and three-dimensional objects, including objects with moving parts. Puzzle pieces utilize joints and apertures to interconnect the pieces. Supporting protrusions are provided in ... | 06/08/1999 |
| 5833512 | Slotted and grooved construction toy A slotted and grooved construction toy of the type having a plurality of flat bodies with slots interlocking with other flat bodies. The flat bodies have a plastic foam core in combination with a laminated surface. The foam core is a semi-rigid and compre... | 11/10/1998 |
| 5827104 | Constructional toy pieces An object is assembled by interconnecting a plurality of puzzle pieces. The object includes first and second puzzle pieces, each having a joint positioned along a first outer side edge and having a substantially U-shaped mortise comprising a bottom edge, ... | 10/27/1998 |
| 5762530 | Constructional toy pieces Puzzle pieces and connectors are provided to assemble a large variety of two and three-dimensional objects, including objects with moving parts. Puzzle pieces utilize joints and apertures to interconnect the pieces. Supporting protrusions are provided in ... | 06/09/1998 |
| 5681041 | Three dimensional puzzle A three-dimensional, representational puzzle having frictionally mating pieces with selected pivoting pieces which allow motion of the puzzle when assembled. The exemplary puzzle is representative of a dinosaur, wherein a V-shaped cut-out is provided in a... | 10/28/1997 |
| 5672087 | Utility model of launchable and assembleable pieces The present invention relates to flat pieces, preferably disks or chips of circular shape fabricated, of flexible plastic material, that have a series of slots or notches alongside their circumferential edges. One of these slots is bigger in size and of d... | 09/30/1997 |
| 5628666 | Toy building chip The invention includes a chip of resilient material that is capable of being secured to one or more chips of similar design, as desired to build a structure, sculpture or other shape. The chip has one or more slots extending inwardly from its perimeter fo... | 05/13/1997 |
| 5605486 | Three-dimensional model structures A three-dimensional model structure is assembled by interconnecting a plurality of puzzle pieces. Each puzzle piece has at least three outer side edges and at least one joint having a substantially U-shaped mortise defined by a first leg and a second leg.... | 02/25/1997 |
| 5544619 | Collapsible cage In order to permit a purchaser to assemble a collapsible cage simply and without the need for special tools, the side walls (2 to 5), which are usually four in number, are connected to each other by sectional corner connectors (7 to 10). The sectional cor... | 08/13/1996 |
| 5495078 | Sound absorber Free-standing sound absorber consisting of an open-cell foam body designed in the manner of a board, having at least one opening in a lateral face for plugging together another, similarly designed foam body. The opening has a height corresponding approxim... | 02/27/1996 |
| 5163862 | Triangular block toy set In a block set toy, the block set having a plurality of identical subsets of triangular blocks, each block being in the form of a thin sheet having internal rectilinear slots and rectilinear side slots defined therein. The sheets are about 1/8th of an inc... | 11/17/1992 |
| 5121526 | Interconnection clip for model structures The preferred clip is comprised of a hub with four equally spaced arms, each having at least one coin-engaging slot. Coins are retained by frictional engagement and by cooperation between the residual coin rim and ridges in the slots. Structures may be bu... | 06/16/1992 |
| 5104345 | Toy construction set formed from plural building blocks A construction toy configured as a humanoid figurine formed from: a torso having a front wall and a rear wall, a head area, downwardly extending legs and outwardly extending arms. The torso and its front and rear walls provide first and second attachment ... | 04/14/1992 |
| 4879800 | Method of producing a columnar support structure A method of manufacturing a support structure, or leg, for a piece of furniture such as a table or the like. A blank of planar sheet material is provided with a rectangular opening adjacent one end and bent about an axis extending through the opening to f... | 11/14/1989 |
| 4836787 | Construction kit educational aid and toy Sheet material building components or units in the shape of different regular polygons of equal edge length have strips of hook-and-pile fastening materials permanently secured so as to extend along their side edges. Hook type fastening material is dispos... | 06/06/1989 |
| 4789370 | Apparatus for interlocking structural elements of toy disks A method of and apparatus for maintaining the interlocked relationship of at least two relatively thin flat structural members positioned at right angles to each other. Bosses are provided on a notch on each element together with a spring means to receive... | 12/06/1988 |
| 4740188 | Toy construction element An elongate rectangular bar useful as a toy construction element and including one or more apertures and one or more pairs of transversely aligned notches. Each aperture has a generally non-circular configuration and defines top bottom and intermediate po... | 04/26/1988 |
| 4722537 | Knockdown toy horse The toy horse is characterized by a rigid structure assembled of components with appropriate tenons and mortises. The structure can facilitate shipment and storage. Erection and dismantling of it can provide interllectual training to children and educate ... | 02/02/1988 |
| 4569665 | Play building element A building element for use in constructing a play structure with similarly shaped elements is disclosed. The building element has a rectangular base provided with longitudinal slots in the center of each lateral side. Each slot extends inwardly by distanc... | 02/11/1986 |
| 4569664 | Playhouse A playhouse, easily assembled by a child of tender years requiring a minimum of parts and no fastening elements, and having a sufficient structural rigidity that it can be picked up and moved without collapsing. The playhouse comprises a plurality of flat... | 02/11/1986 |
| 4556394 | Toy building block set A toy building block set having several kinds of blocks, each of them including a frame having a rectilinear outline, the connecting elements and sockets are formed along the periphery of the frame. The block sets are capable of being developed into a var... | 12/03/1985 |
| 4371166 | Cylindrical puzzle A geometric puzzle in the general shape of a cylinder is disclosed. The puzzle is comprised of eight side segments of identical outside dimensions and top and bottom portions of similar dimensions. Each top and bottom portion has a plurality of pairs of p... | 02/01/1983 |
| 4147007 | Matable modular elements for toy, display and model applications utilizing paired rib structure A modular element is disclosed which includes a plurality of rib pairs protruding from a surface of a base. Each rib pair includes first and second ribs which extend longitudinally parallel to each other and which are transversely spaced to define therebe... | 04/03/1979 |
| 4124958 | Spherical junction element for composable display structures A spherical junction element for composable display structures, comprising a body having at least one partially spherical outside surface, at least one flat outside surface intersecting the partially spherical surface, at least one slot in said partially ... | 11/14/1978 |
| 4074496 | Composite plate A composite large plate is connected with a structural element and has an undercut coupling projection having at least two structural plates. Each of the structural plates has two undercut slots and is adapted to be located adjacent to one another so that... | 02/21/1978 |
