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| Number | Title | Issue Date |
| 7314333 | Plate concrete dowel system A disc dowel system is interposed between adjacent first and second concrete pours defining a pour joint therebetween. The disc dowel system comprises a positioner bracket, a pocket former and an orthogonally shaped dowel plate. The positioner bracket has a horizont... | 01/01/2008 |
| 6926463 | Disk plate concrete dowel system Disclosed is a disc dowel system interposed between adjacent first and second concrete pours defining a pour joint therebetween. The disc dowel system comprises a positioner bracket, a pocket former and a dowel plate. The positioner bracket has a vertically disposed... | 08/09/2005 |
| 6418688 | Joint forming systems A non-absorbent, compressible joint forming device fabricated from closed cell, low density polyethylene foam material and used in expansion or contraction joints and isolation joints of sidewalks, driveways, highways, runways, parking decks an other appl... | 07/16/2002 |
| 5935695 | Joint filler A joint filler for use in joints between structural elements comprising: at least one layer of a substantially non-compressible, moisture blocking material; at least two layers of a compressible and resilient, moisture blocking material, each layer being ... | 08/10/1999 |
| 5607253 | Dilatation joint element To avoid leakage in concrete structures with dilatation joints and to prevent dirt from accumulating in the joints there has been developed a dilatation joint element which is easy to mount, reliable and essentially maintenance-free. The dilatation joint ... | 03/04/1997 |
| 5387050 | Extruded ethylenic polymer foam containing both open and closed cells Disclosed is an extruded, low density, non-outgassing ethylenic polymer foam containing 30-85% open cells and the remainder closed cells and having an essentially integral surface. The foam possesses superior compression recovery and lower compression res... | 02/07/1995 |
| 5213441 | Extruded thermoplastic elastomer expansion joint retainer An expansion joint retainer is used in fastening a flexible elastomeric seal or strip seal to a structural slab. The retainer has a main body made from a first material. The main body has a thickness selected to permit emplacement of the retainer on the e... | 05/25/1993 |
| 5051024 | Sliding closures for roadway expansion joints A sliding closure for a roadway expansion joint crossing has on the first part of the roadway (1) a sliding face (5) with a curved segment (7) and an adjoining level segment (8) running parallel to the driving surface (4). Resting flatly on this sliding f... | 09/24/1991 |
| 5007765 | Sealing method for joints Joints between surfaces are sealed by a method which cleans the joint surfaces, installs a backer rod between the joint surfaces, applies a sealant in the space over the backer rod and allows the sealant to cure. The backer rod is an open cell foam having... | 04/16/1991 |
| 4977018 | Sealing element The present invention relates to a sealing element of foam of delayed elastic resilience as a result of impregnation, in which, in order to obtain improved properties, on each cross-sectional plane (2) the delayed resilience is inherent in only a part of ... | 12/11/1990 |
| 4952104 | Method of finishing the surface of a structure A method of finishing the surface of a structure, which comprises fixing a rigid or elastic pattern member on a surface, with the pattern member including a releasable covering material applied thereto, applying a coating material to the surface and the m... | 08/28/1990 |
| 4927291 | Joint seal for concrete highways A sealed joint in a concrete highway or the like is installed in a channel formed above the usual shrinkage control cut or construction joint between adjoining concrete slabs by placing in such channel a preformed and relaxed length of a ductile and elast... | 05/22/1990 |
| 4861043 | Pressure/compression concrete joint seal A joint seal comprises two elastomeric elements, configured to fit as a nested assembly within the gap between adjacent slabs. The outer element (the "outer seal") is a generally U-shaped channel (with sides and a bottom), and performs the actual sealing ... | 08/29/1989 |
| 4824283 | Sealed highway joint and method A sealed joint in a concrete highway or the like is installed in a channel formed above the usual shrinkage control cut between adjoining concrete slabs by depositing a mass of uncured ductile and elastic adhesive, preferably a special silicone material, ... | 04/25/1989 |
| 4799345 | Reversible compression seal A seal for sealing the region between abutting building surfaces is provided with a first surface for presentation when the seal is used between smooth abutting wall surfaces, and a second surface for presentation where one or both of the abutting wall su... | 01/24/1989 |
| 4637085 | Joint spanning construction for bridges or similar structures A joint spanning construction for bridges has a sealing body flush with the top edge of the road surface and comprising beading made of resilient rubber material inserted into recesses of open-topped sills. The beading is secured against lifting out by re... | 01/20/1987 |
| 4601604 | Expansion joint An expansion joint for sealing the channel between two sections of roadway has a plug and a fluid-polymer poured into the joint and allowed to set in situ in the channel. Enclosed within the fluid is a core of a mastic material which is more plastic and l... | 07/22/1986 |
| 4572700 | Elongated bendable drainage mat Elongated, bendable drainage mat having a rectangular transverse cross section and comprising a polymeric core having a plurality of substantially rigid fingers extending from one side of a layer and an enveloping water permeable fabric having a permittiv... | 02/25/1986 |
| 4569615 | Expansion joint structures An expansion joint and seal structure for the variable width space between roadway, bridge or like sections subject to expansion and contraction is provided in the form of an elongate elastomer member having spaced transverse passages of generally rectang... | 02/11/1986 |
| 4445640 | Highway railway crossing and cap therefor A crossing construction for a railway including a plurality of spaced-apart cross-ties that support two parallel rails positioned thereon. The crossing includes a center pad of resilient rubber-like material positioned between the rails. A side pad of res... | 05/01/1984 |
| 4397579 | Expansion joint structures An expansion joint and seal structure for the variable width space between roadway, bridge or like sections subject to expansion and contraction is provided in the form of an elongate elastomer member having spaced transverse passages of generally rectang... | 08/09/1983 |
| 4290249 | Elastomeric spring expansion joint-seal strip The object of this invention is to provide an elastomeric spring expansion joint-seal strip for sealing the gap between expansion members in highways, bridges and the like. The spring expansion joint-seal strip is an elongated seal strip of a substantiall... | 09/22/1981 |
| 4288173 | Expansion and contraction joint assembly An expansion and contraction joint assembly for use with installations of tile, slate or marble floors or the like is disclosed. The joint assembly is comprised generally of a base or lower component, a core receiving or upper component, and a cap compone... | 09/08/1981 |
| 4285180 | Waterstops The invention relates to a waterstop for providing a water-tight seal between layers of concrete. Flexible waterstops are known and are usually attached to a convenient structure such as steel reinforcing bars by individual loops of wire which pass throug... | 08/25/1981 |
| 4093120 | Railroad crossing structure A railroad crossing structure comprising one or more elastomeric pads which preferably have a flexible plate of a concave cross-section imbedded within them. The elastomeric pads are abutted together side-by-side and/or end-to-end to form the crossing, an... | 06/06/1978 |
| 4058947 | Fire resistant joint system for concrete structures An improved fire resistive joint system for concrete panel walls and like building structures is disclosed. The cool (or external) side of the joint is sealed by a high performance elastomeric joint sealant, preferably backed up by a closed cell backing m... | 11/22/1977 |
| 4030852 | Compression seal for variably spaced joints A generally hollow compression type elastomeric seal with integral metal ribs for lateral reinforcement and with integral fibers linking the metal ribs for reinforcment against longitudinal stretch. Seal is installed in compression in a space between adja... | 06/21/1977 |
