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| Number | Title | Issue Date |
| 5044835 | Expansion joint for use in constructing concrete structures An expansion joint for use in constructing concrete material structures of the present invention has a plurality of sandwich type composite plates each comprising a sheet-like elastic body sandwiched by a pair of hard plates with a rib at both surfaces th... | 09/03/1991 |
| 5005331 | Concrete dowel placement sleeves Slip and non-slip dowel placement sleeves are disclosed. The slip dowel placement sleeve generally comprises a tubular dowel receiving sheath having a closed distal end and an open proximal end. A connecting means of perpendicular flange is formed around ... | 04/09/1991 |
| 4841704 | Screed track for concrete slab construction A unitary extruded, plastic screed track is disclosed for use in connection with concrete slab construction. The screed track includes two elongated, parallel side members disposed in substantially vertical planes in close, spaced-apart relationship. An i... | 06/27/1989 |
| 4815886 | Expansion joint for concrete and method for use A new self supporting expansion joint for use in the preparation of concrete products which comprises a single unit molded inverted T having a flat base adapted for resting on the ground and a vertical beam perpendicularly joined to the center of said bas... | 03/28/1989 |
| 4752153 | Compensating highway joint The invention pertains to a compensating highway joint system for interconnecting adjacent concrete highway sections having obliquely disposed end joints. The highway joint utilizes a V-shaped vertical separator plate which forms a tongue and groove relat... | 06/21/1988 |
| 4735395 | Interfacial separator for concrete structures An improved system is provided for separation of contiguous concrete portions of a structure. This separation is advantageous in reducing structural failure caused by earth settlement, frost upheaval or excessive underground water pressure by allowing eac... | 04/05/1988 |
| 4733513 | Tying bar for concrete joints An improved dowel or tying bar and joint construction for transferring stresses across a joint between concrete slabs or structures and accommodating for shrinkage and expansion of concrete. The bar has a resilient facing attached to at least one side of ... | 03/29/1988 |
| 4651488 | Expansion joint for plaster walls A unitary extruded plaster screed expansion joint for use in cast wall construction. The expansion joint includes a front wall and a first pair of opposing side walls extending rearwardly from the outer edges of the front wall. A second pair of opposing s... | 03/24/1987 |
| 4598517 | Floor laying arrangement An arrangement for use when casting concrete floors, particularly in locales having pillars, floor drains or the like. The arrangement includes straight concrete beams and sections of ring-like concrete beams which are intended to be incorporated in the r... | 07/08/1986 |
| 4582453 | Method and apparatus for in situ forming underground panelized concrete walls with improved joint structure This invention relates to slurry method and apparatus for forming panelized concrete walls with a positive seal between joints. The invention is basically an improvement on the process disclosed in Veder U.S. Pat. No. 3,310,952. The slurry method or proce... | 04/15/1986 |
| 4578916 | Connecting and pressure-distributing element for concrete structural members The element comprises a socket and a bar slidingly insertable into the opening of the socket. Disposed around and spaced from both the socket and the bar are at least two closed loops each, of generally rectangular shape and made from reinforcing rods. Th... | 04/01/1986 |
| 4548009 | Concrete expansion joint A concrete expansion and contraction joint is provided comprising a hollow single piece longitudinal extruded member having a cross sectional configuration which resembles an arrow head with a relatively narrow upper stem portion. When the expansion joint... | 10/22/1985 |
| 4531858 | Partially separable attachment device for sheet metal screed and stake assemblies A partially separable attachment device for sheet metal screed and stake assemblies of the type used in forming concrete ground slabs serves to hold top portions of the sheet metal screed and its supporting screed stakes in interassembled relation for use... | 07/30/1985 |
| 4346542 | Joint for use in concrete deposit Joint used to prevent cracks from occurring in a concrete floor. The joint comprises a body of soft material such as foamed styrol and urethane, a capping member of synthetic resin arranged on the top of body, and leg members for supporting and positionin... | 08/31/1982 |
| 4329080 | Joint former A joint former for hardenable material such as concrete comprises two essentially identical web members which are releasably attached to each other by a two-part friction coupling to form an assembly which is generally a T-shaped assembly. Each web is con... | 05/11/1982 |
| 4198176 | Concrete expansion joint forming structure A joint forming structure produced integrally as a bent metallic sheet having a continuous cross-sectional configuration. The sheet includes a central trough having a parallel side walls and a perpendicular transverse base wall. It further includes a pair... | 04/15/1980 |
| 4190997 | Means for forming an edge-protected contraction joint First and second elongate members formed of wear-resistant metal are embedded within the upper portion of the concrete, while the same is in a plastic condition, at a location where a contraction joint is desired. The members are so connected to each othe... | 03/04/1980 |
| 4074943 | Waterproof joint Waterproof joint for field assembly consisting of two waterstops each having a planar face and a U-shaped junction member fastened to the faces of the water stops.... | 02/21/1978 |
| 4067160 | Concrete reservoir composed of prefabricated sections A reservoir consisting of a system of contiguous, prefabricated, plate-shaped concrete sections that are connected in a water-tight way, comprising that (1) the plate-shape concrete sections are flat or slightly bent and include a large angle when assembl... | 01/10/1978 |
| 4064672 | Post-applied waterstop connection Distinct lengths of post-applied waterstop strips are spliced together by wrapping them in contour fitting flexible union shells provided with a solid baffle having a transverse cross-sectional shape identical to that of said strips. Conventional adhesive... | 12/27/1977 |
| 4059935 | Post-applied waterstop Waterstop for use in jump or slip casting of concrete comprising two strips of T-shaped transverse cross-section which can be fastened together by means of bars and bolts after the first strip has been embedded at the edge of a concrete mass. After fasten... | 11/29/1977 |
| 4050206 | Expansion jointing material for placing concrete, mortar or the like An expansion jointing material for placing concrete, mortar or the like which comprises a jointing material of elastic substance and a cover member placed over the jointing material and extending in the longitudinal direction thereof. In operation, a plur... | 09/27/1977 |
| 4041665 | Injection sealable waterstop and method of installing same A waterstop of elastic deformable rubbery material used in concrete structures with a substantially flat middle portion and enlarged side wing anchor sections with elastic or metal anchor strips and sponge material attached to the outer edge of the strips... | 08/16/1977 |
| 4024689 | Sectional joint and slab from cast material A sectional joint for making surfaces from a cast material such as concrete, and a slab made therefrom. These consist of a strip or web with two faces, each face being formed with projecting portions and depressed portions which respectively extend into t... | 05/24/1977 |
| 4023324 | Methods of making expansion joints for roads and buildings The method of making an expansion joint for roads and buildings is described which is particularly suited for structures employing poured concrete slabs or precast concrete panels or slabs, the joint including a stabilized foam strip to both sides of whic... | 05/17/1977 |
| 4012024 | Key-joint forming divider strip with upstanding screed adapted for use with concrete slabs A divider strip with an upstanding screed for use with a pouring of a pair of adjoining concrete slabs, such strip being designed to be supported by a horizontal series of laterally spaced stakes which are set below a predetermined grade level, and being ... | 03/15/1977 |
| 3982365 | Distribution blocks for the formation of joints resisting to differential settling and joints obtained by using said blocks A distribution block, which comprises a body having a trapezoidal longitudinal section and toothing bars projecting on the said body and extending from an inclined face to the upper face thereof.... | 09/28/1976 |
| 3968611 | Dilation joint strip A dilation joint strip of rubber, synthetic rubber or other synthetic material having a substantially flat middle portion and side wings, said side wings being provided with anchorage means for anchoring said wings in concrete, the substantially flat midd... | 07/13/1976 |
| 3953661 | Extrusion apparatus, process and article A unitary extruded thermoplastic article that may be a concrete joint former having an intermediate tear plane formed from an admixture of a plasticizer or a filler in the amount of 150 to 1500 parts per 100 parts of thermoplastic resin. A process for pro... | 04/27/1976 |
