Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 8381470 | Tapered load plate for transferring loads between cast-in-place slabs A tapered load plate transfers loads across a joint between adjacent concrete floor slabs. The top and bottom surfaces may taper from approximately 4 inches wide to a narrow substantially pointed end over a length of approximately 12 inches. The tapered load plate a... | 02/26/2013 |
| 8347574 | Joint elements for slabs A system for transferring loads across a joint between cast-in-place slabs, more particularly at crossover point of a joint between cast-in-place slabs, includes at least one dowel plate and joint elements and includes elements or abutments for limiting the relative... | 01/08/2013 |
| 8302359 | System of protecting the edges and construction joints of cast in place concrete slabs An improved joint edge assembly, of the type used in the construction of concrete slabs, is disclosed. The assembly comprises a longitudinal joint rail, preferably of steel, which is supported off the ground by formwork. The joint rail comprises first and second joi... | 11/06/2012 |
| 8291662 | Continuous pour concrete slip dowel According to one non-limiting embodiment of the present invention, a continuous pour concrete slip dowel is disclosed configured for use across a joint between adjacent concrete slabs. The continuous pour concrete slip dowel of the invention includes a slip sleeve c... | 10/23/2012 |
| 8146309 | Concrete crack inducer with drainage channel A plastic extruded member is provided which will induce cracks in concrete and provide drainage for moisture entering the cracks. The member includes a base which sets upon the subgrade surface, with a pair of legs extending upwardly from the base. Arms extend later... | 04/03/2012 |
| 7926235 | Monolithic concrete wall expansion joint system An expansion joint system for a wall is provided herein wherein a first concrete wall component is substantially separated from a second concrete wall component via a rigid plate such that contraction of the first concrete wall component does not create significant ... | 04/19/2011 |
| 7716890 | Tapered load plate for transferring loads between cast-in-place slabs A tapered load plate transfers loads across a joint between adjacent concrete floor slabs. The top and bottom surfaces may taper from approximately 4 inches wide to a narrow substantially pointed end over a length of approximately 12 inches. The tapered load plate a... | 05/18/2010 |
| 7481031 | Load transfer plate for in situ concrete slabs A tapered load plate transfers loads across a joint between adjacent concrete floor slabs. The top and bottom surfaces may taper from approximately 4 inches wide to a narrow substantially pointed end over a length of approximately 12 inches. The tapered load plate a... | 01/27/2009 |
| 7441984 | Concrete slab dowel system and method for making and using same A plurality of sleeve members for receiving and maintaining a dowel bar therewithin can be provided so that the dowel bar does not transmit substantial shear stresses to the concrete during the contraction and expansion of the concrete. The sleeve members can compri... | 10/28/2008 |
| 7381007 | Monolithic pour crack control system and method of use A joint assembly for controlling fractures along a fracture axis in a monolithic pour concrete structure is provided. The concrete structure is defined by a first edge form section and a generally opposed second edge form section. The joint assembly is characterized... | 06/03/2008 |
| 7338050 | Expansion joint gasket An expansion gasket 10 positionable between similar or dissimilar materials having an exterior exposure to the elements. In the preferred embodiment, the expansion gasket of the present invention 10 provides means to seal a space occurring between mate... | 03/04/2008 |
| 7334962 | Monolithic pour crack control system and method of use A joint assembly for controlling fractures along a fracture axis in a monolithic pour concrete structure is provided. The concrete structure is defined by a first edge form section and a generally opposed second edge form section. The joint assembly is characterized... | 02/26/2008 |
| 7228666 | Device for equipping an expansion joint, in particular an expansion joint between concrete slabs A device for making a connection between concrete slabs, the device having two modules derived from sheets, each module having a number of flat elements which form projections, each module further having elements in the form of a right angle, having a flat part inte... | 06/12/2007 |
| 7201535 | Concrete slab dowel system and method for making and using same A sleeve assembly system, a concrete dowel slab joint system, a method for maintaining adjacent sections of concrete in alignment during contraction and expansion of the concrete and for transferring shear stresses and bending moments across a joint formed between a... | 04/10/2007 |
| 7134248 | Pre-cast panel form insert The present invention is directed to a pre-cast panel form insert used in precast construction. The insert comprises a substantially planar portion defining dimensions suitable to complement dimensions of a pre-cast panel form and a fluid diverting portion. The flui... | 11/14/2006 |
| 7124545 | Tilt-up panel and method A method for using tilt-up panels with chamfered sides, extensions below the panels ad receptacles for removable eyelets approximately ⅔ of the way up the panel. Inserts may be used between the panels to hold epoxy or other materials. The inserts may include a T-s... | 10/24/2006 |
| 7065931 | Floor strip A thin decorative thermosetting laminate of postforming quality is glued to a longitudinal carrier to form a floor strip. The laminate has a thermosetting resin as well as hard particles impregnated therein to increase the abrasion resistance of the laminate. The ca... | 06/27/2006 |
| 7040066 | Structure formed of foaming cement and lightweight steel and a structural system and method of forming the structural system A foaming cement (1), cooperates with the steel member (5), forms the fender structure (111), which could solely resist the load in horizontal or vertical direction, or cooperate with the columniation (222). The whole lightweight steel ( | 05/09/2006 |
| 7021858 | Double joints pavement system A construction joint implement and method for its use in the construction of surface pavement (e.g., roads, highways, airports, and parking lots of concrete or asphalt) comprise a trapezoidal shaped reinforcing beam or a modified reinforcing beam made of a rigid mat... | 04/04/2006 |
| 6958563 | Riser commutators Rotary switches, and in particular riser-style commutators, are detailed together with featured strips from which they are made. Segments formed from the strips may include anchor notches and slots for receiving reinforcing rings. The structure of the strip addition... | 10/25/2005 |
| 6948291 | Plastic slab bolster upper A slab bolster upper for supporting rebar in a reinforced concrete structure while the concrete is poured and thereafter cures, is of molded plastic construction and is formed with horizontal and vertical voids that facilitate concrete placement and break up potenti... | 09/27/2005 |
| 6948716 | Waterstop having improved water and moisture sealing features An improved waterstop having the important added feature of a hydro expansive compound which expands when subjected to water. By expanding, the hydro expansive compound effectively blocks the passage of water that leaks into the gaps created during the shrinkage of ... | 09/27/2005 |
| 6898910 | Precast composite header joint system and a method for forming and installing the same The invention disclosed relates to a precast composite header joint system and method for forming and installing the same in a concrete deck structure. According to the invention, the header is cast and cured before being positioned and secured in a recess formed in... | 05/31/2005 |
| 6871466 | Structure formed of foaming cement and lightweight steel and a structural system and method of forming the structural system A foaming cement (1), cooperates with the steel member (5), forms the fender structure (111), which could solely resist the load in horizontal or vertical direction, or cooperate with the columniation (222). The whole lightweight steel ( | 03/29/2005 |
| 6745532 | Process for the articulated imbrication of concrete slabs ¢i(in situ) The invention relates to the articulated imbrication of concrete slabs i(in situ) wherein joints are formed by laying i(in situ), along joint lines, a simple armored mesh device with a cut and fold pattern which has been already prepared in the workshop. Advantage i... | 06/08/2004 |
| 6739805 | Waterstop for foundation elements and method of installation A waterstop, 10 or 11, for restricting or preventing the flow of water across the joints of foundation elements 8, such as between or along individual diaphragm wall panels or between or along individual secant wall piles. The present invention ... | 05/25/2004 |
| 6694690 | Concrete constructions employing the use of a ductile strip The present invention relates to a concrete construction that comprises a concrete slab and a ductile strip adjacent the slab. The ductile strip comprises an engineered cementitious composite of cementitious material and reinforcing fibers with the ductil... | 02/24/2004 |
| 6692184 | Retrofit dowel for maintaining concrete structures in alignment An apparatus and method of providing a retrofit dowel to maintain adjacent concrete structures in alignment. The dowel is received in a longitudinal groove cut across the structures, and supported in spaced relationship to the bottom of the groove by feet... | 02/17/2004 |
| 6675539 | Roof seismic motion-absorbing gap cover A seismic roof motion-absorbing gap cover assembly includes an elongated y-axis slideway affixed to a building unit B on one side of the gap and extending parallel to the gap and a y-axis slider slidably received on the y-axis slideway. Roof support membe... | 01/13/2004 |
| 6612085 | Reinforcing bars for concrete structures Reinforcing bars for concrete structures, are made from a composite of a depolymerizable and repolymerizable thermoplastic resin and longitudinally oriented reinforcing fibers. These reinforcing bars provide excellent tensile reinforcement, and do not exh... | 09/02/2003 |
| 6598364 | Adjustable height concrete contraction and expansion joints A concrete contraction and expansion joint with a mechanism providing adjustable height, enabling fast, efficient pouring of concrete over layout surfaces, achieving accurate thickness and desired slope of the concrete slab. In a preferred embodiment, the... | 07/29/2003 |
| 6517277 | Expansion and crack joint coupler An expansion or crack joint assembly (32) utilizes a coupler (20) with or without a bottom sheet (34) to join adjacent roadway concrete slabs (86, 90) formed separately initially or continuously cast and later separated by a saw cut, which induces crackin... | 02/11/2003 |
| 6513291 | Concrete slab construction for building columns A concrete slab construction in which a building ring is used to isolate the slab from a column which supports upper parts of a building. The ring is placed on a concrete pier beneath the column. Concrete may be poured to form a slab outside of the ring a... | 02/04/2003 |
| 6502359 | Dowel placement apparatus for concrete slabs An expendable concrete dowel placement apparatus comprising a concrete form and a dowel holder capable of quickly positioning a dowel perpendicular to the surface of the concrete form, thereby allowing the finished concrete slab to expand and contract rel... | 01/07/2003 |
| 6494007 | Expansion joint curb for roof systems An expansion joint curb assembly includes one or more pre-formed component structures fabricated from a non-corrosive, durable material. Each of the component structures include an anchoring flange for attachment to the roof structure, an upper flange def... | 12/17/2002 |
| 6484462 | Seismic expansion joint cover A seismic expansion joint cover includes a bridge panel having one end supported for movement in the y-axis direction and against movement in the x-axis direction relative to a floor A on one side of a motion-absorbing gap and supported at the other end f... | 11/26/2002 |
| 6434904 | Sealing device The invention relates to a sealing device consisting of two contiguous building elements made of concrete, steel, reinforced concrete, cast iron or other materials, and a shaped sealing element made of an elastomer material which is inserted into a recess... | 08/20/2002 |
| 6401416 | Vee joint for use in filling shrinkage compensating concrete floor joints A vee joint having a first flange hingedly connected to a second flange at an angle. A trough is formed between the first flange and the second flange and is used to retain joint filler within a joint interval in a concrete floor slab. The flanges are mov... | 06/11/2002 |
| 6389774 | Pipe dowel for concrete slab construction Methods, apparatuses and systems directed to joint restraining systems for concrete constructions. In one embodiment, the present invention is a novel method for creating joint restraints that employs a pipe dowel. As more fully described below, the prese... | 05/21/2002 |
| 6354053 | Structural joint for slabs in moldable material The joint includes at least two profile elements having such a shape as to enable mutual engagement thereof as a male part and at least a female part, each being integral with one of the edges of two adjacent slabs. One edge of the slab is provided with a... | 03/12/2002 |
