Encased, Laminated Or Composite Patents (Class 404/66)
  • Patent number: 10138606
    Abstract: Provided is a header composition for an expansion joint system. The header composition includes a hybrid polyurea-polyurethane composition and is designed to have a short cure time at low temperatures. Also provided are an expansion joint system incorporating the hybrid polyurea-polyurethane header composition and a method for applying the header composition into the expansion joint system.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: November 27, 2018
    Assignee: Construction Research & Technology GmbH
    Inventors: Dale Campbell, Gary Moore, Frank V. Apicella, Jr., Konrad Wernthaler
  • Patent number: 8539726
    Abstract: An expansion joint system of a concrete slab arrangement, comprising an expansion joint reinforcement to be arranged between a first and a second concrete slab, the expansion joint reinforcement comprising at least one lo-cal or continuous dowel which is arranged to transfer loads perpendicular to the slab plane. The expansion joint reinforcement comprises an additional reinforcement comprising at least one clenching pin and to be arranged in the vicinity of the dowel in concrete, the additional reinforcement being arranged to adhere to the concrete above and below the dowel by means of a widening forming the clench point.
    Type: Grant
    Filed: January 20, 2009
    Date of Patent: September 24, 2013
    Assignee: Peikko Group Oy
    Inventors: Topi Laiho, Trent W. Davis
  • Patent number: 8516761
    Abstract: The invention relates to an expansion joint system of a concrete slab arrangement, comprising an expansion joint reinforcement to be arranged between a first and a second concrete slab, the expansion joint reinforcement comprising at least one local or continuous dowel arranged to transfer loads which are perpendicular to the slab plane. A shear reinforcement or a location for attaching the shear reinforcement has been arranged in advance in the expansion joint reinforcement.
    Type: Grant
    Filed: January 20, 2009
    Date of Patent: August 27, 2013
    Assignee: Peikko Group Oy
    Inventors: Topi Laiho, Trent Davis
  • Patent number: 8454265
    Abstract: An embodiment configured according to principles of the invention includes a plate defining a hexagon having a base parallel with joint between concrete slabs. Another embodiment includes a hexagon-shaped plate having a first portion and a second portion, and a form having a slot configured to closely receive the second portion.
    Type: Grant
    Filed: April 20, 2005
    Date of Patent: June 4, 2013
    Assignee: EZ Form, Inc.
    Inventor: Michael E. Carroll
  • Publication number: 20120308303
    Abstract: The invention relates to a device (1) for bridging an expansion joint (2) in the region of a carriageway, comprising a superstructure (5) and a substructure (6), and the superstructure (5) comprises at least one elastic element (15) and the substructure (6) forms a support for the superstructure (5). At least one holding element (19, 20) is disposed in the superstructure (5), which is at least partially embedded in the elastic element (15).
    Type: Application
    Filed: September 30, 2010
    Publication date: December 6, 2012
    Applicant: REISNER & WOLFF ENGINEERING GMBH
    Inventors: Gustav Gallai, Georg Michael Wolff, Erwin Detter
  • Patent number: 8029854
    Abstract: The present invention provides a process for repairing concrete involving filling one of a void, gap or seam in the concrete with a polyurethane sealant containing a silane terminated prepolymer (“STP”), and a catalyst, optionally, one or more of plasticizers, fillers, pigments, drying agents, light stabilizers, antioxidants. thixotropic agents and bonding agents and applying an isocyanate-terminated prepolymer containing polyurethane or polyurea coating to the silane terminated prepolymer polyurethane sealant.
    Type: Grant
    Filed: July 26, 2007
    Date of Patent: October 4, 2011
    Assignee: Bayer MaterialScience LLC
    Inventor: Jay A. Johnston
  • Patent number: 7314333
    Abstract: 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 horizontal plate portion and a vertical base flange that is rigidly attachable to a concrete form. The pocket former has a horizontally extending interior compartment with an open straight side that is aligned with the pour joint. The pocket former is positioned within the first pour by the positioner bracket. The dowel plate has an orthogonal shape with an embedded portion and a slidable portion. The embedded portion is rigidly encapsulated within the second pour. The slidable portion is slidably disposed within the pocket former such that the dowel plate permits relative horizontal movement of the first and second pours while restricting relative vertical movement thereof.
    Type: Grant
    Filed: April 7, 2006
    Date of Patent: January 1, 2008
    Assignee: Shaw & Sons, Inc.
    Inventors: Lee A. Shaw, Ronald D. Shaw
  • Patent number: 6926463
    Abstract: 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 base flange and a horizontally disposed plate portion extending therefrom. The base flange is rigidly attachable to a concrete form. The pocket former has a horizontally extending interior compartment with an open, generally straight side and an arch-shaped compartment perimeter extending therefrom. The straight side is aligned with the pour joint. The pocket former is positioned within the first pour by the positioner bracket. The dowel plate has a generally rounded shape with an embedded portion and a slidable portion.
    Type: Grant
    Filed: August 13, 2003
    Date of Patent: August 9, 2005
    Inventors: Lee A. Shaw, Ronald D. Shaw
  • Patent number: 6418688
    Abstract: 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 applications where concrete slabs are used, comprising: a retained base for allowing expansion, contraction, and isolation of said joints wherein said non-absorbent, compressible base material is retained in said construction application and a tear-off strip wherein frangible bridges across said material thickness spaced in a predetermined manner along the length of said joint forming system are the means whereby said retained base and said tear-off strip are held together during a construction application, and a non-absorbent reservoir for sealant deposition when said tear-off strip is removed.
    Type: Grant
    Filed: April 4, 2000
    Date of Patent: July 16, 2002
    Inventor: Louis T Jones, Jr.
  • Patent number: 5935695
    Abstract: 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 in surface to surface contact with a layer of non-compressible material; the layers of material are combined to form a strip of interleaved compressible and non-compressible layers, and in an uncompressed state thicker than a joint.
    Type: Grant
    Filed: October 24, 1997
    Date of Patent: August 10, 1999
    Assignee: Emseal Corporation
    Inventor: Konrad Baerveldt
  • Patent number: 5607253
    Abstract: 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 element according to the invention is comprised of opposed, longitudinal angle elements interconnected in pairs and made of metal with interposed jointing compound, reinforcement bands and robber elements. With curved band sections and rubber elements between the angle elements and a curved jointing compound section which is attached to the upper band section there is provided a supporting, power-compensating and power-distributing function when the joint is subjected to load, both at compression, expansion and shearing, providing a tight, reliable and loadable joint with good fatigue strength.
    Type: Grant
    Filed: May 5, 1995
    Date of Patent: March 4, 1997
    Assignee: Intermerc KB
    Inventor: Olof Almstrom
  • Patent number: 5387050
    Abstract: 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 resistance when compared with similarly comprised ethylenic closed cell foams and superior moisture resistance and handling characteristics when compared to open cell foams.
    Type: Grant
    Filed: January 16, 1992
    Date of Patent: February 7, 1995
    Assignee: Nomaco Inc.
    Inventors: Edward E. Hovis, Eric D. Johnson, Michael J. Schroeder
  • Patent number: 5213441
    Abstract: 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 edge of a said slab whereby the upper surface of the main body is substantially coplanar with or beneath the upper traffic bearing surface of the slab. The retainer includes a retaining element adjacent the lower surface of the main body. The retaining element is made of a second material serving to provide the retainer with sufficient rigidity to be bolted to a slab. The invention is characterized in that the second material is a thermoplastic elastomer.
    Type: Grant
    Filed: April 22, 1991
    Date of Patent: May 25, 1993
    Assignee: Emseal Corporation
    Inventor: Konrad Baerveldt
  • Patent number: 5051024
    Abstract: 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 face is a sliding plate (10) of elastomeric material and of uniform thickness. The sliding plate (10) is bolted onto the second part of the roadway (2) and bridges with a level section (12) a gap (11) between the first and second parts of the roadway (1, 2). In the level section (12), the sliding plate (10) is reinforced by a flexurally rigid steel plate (14). In the section resting on the curved segment (7), the reinforcement of the sliding plate (10) consists of a thin, flexible plate (15). Fastened on the first part of the roadway (1) is a tongue plate (32), which overlaps the sliding plate.
    Type: Grant
    Filed: February 6, 1990
    Date of Patent: September 24, 1991
    Inventor: Robert Warthmann
  • Patent number: 5007765
    Abstract: 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 an impervious skin. Preferably, when the surfaces are horizontal, as in a highway, the sealant used is a self-leveling sealant, preferably a silicone sealant.
    Type: Grant
    Filed: September 16, 1988
    Date of Patent: April 16, 1991
    Assignee: Dow Corning Corporation
    Inventors: John E. Dietlein, Russel P. Kamis, Peggy L. Dixon
  • Patent number: 4977018
    Abstract: 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 the elastically resilient volume and the remaining part (4) of the elastically resilient volume consists of closed-cell foam.
    Type: Grant
    Filed: November 23, 1988
    Date of Patent: December 11, 1990
    Assignee: Irbit Research & Consulting AG
    Inventors: Fritz Irrgeher, Frank Schwarze
  • Patent number: 4952104
    Abstract: 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 member, removing the covering material, which is peelably attached on the surface of the pattern member, together with an uncured portion of the coating material placed on top of the pattern member, before the coating material is completely dried, and curing the coating material. In this way, the pattern member remains in the coating material as a joint, providing an attractive surface finish disposed within the coating material.
    Type: Grant
    Filed: April 27, 1988
    Date of Patent: August 28, 1990
    Inventor: Hideharu Osada
  • Patent number: 4927291
    Abstract: 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 elastic material and bonding it to at least part of the concrete faces of the channel by a ductile and elastic adhesive. In some instances, an anti-bonding agent is applied to portions of the preformed and relaxed length to provide for joint expansion and retraction. The joint installation channel is preferably unusually shallow and may be dry cut. Its width is sufficiently narrow that traffic loads are carried by the concrete bordering the channel. The preformed length is preferably of strip formation, which is introduced into the channel from a stable roll of same.
    Type: Grant
    Filed: May 3, 1988
    Date of Patent: May 22, 1990
    Inventor: Michael C. Belangie
  • Patent number: 4861043
    Abstract: 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 function. The outer surfaces of the channel sides are formed with a series of longitudinally-extending fins, which frictionally engage the slab edges. The inner element ("the core") is formed as a generally rectangular tube that provides a structural strength for the seal assembly. It includes a tubular outer wall and an internal truss-type framework consisting of a number of interconnected webs. The seal assembly is installed under compression.
    Type: Grant
    Filed: January 11, 1988
    Date of Patent: August 29, 1989
    Assignee: Bechtel International Corporation
    Inventors: Joseph Anderson, Barney T. Baldi, John M. Engstrom
  • Patent number: 4824283
    Abstract: 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, in such channel and embedding a preformed length of a cured ductile and elastic material, again preferably a special silicone material, in such adhesive. The length is preferably of strip formation and has intermediate areas of its upper and lower surfaces covered with respective fillers of an anti-bonding agent to provide for joint expansion and retraction. The joint installation channel is preferably unusually shallow and may be dry cut. Its width is sufficiently narrow that traffic loads are carried by the concrete bordering the channel. Preformed strip is introduced into the adhesive in the channel from a stable roll of same.
    Type: Grant
    Filed: January 9, 1987
    Date of Patent: April 25, 1989
    Inventor: Michael C. Belangie
  • Patent number: 4799345
    Abstract: 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 surfaces is rough. The seal's position between abutting building surfaces is reversible so as to present either the first or second surface, depending on the nature of the abutting building surfaces. Side sections are provided with ridges and grooves for receiving sealant material to form a barrier between the exterior region and interior region of the area between abutting building surfaces and to provide adhesion between the seal and the building surfaces to assure the seal is maintained against the abutting building surfaces upon expansion or contraction of the area between those surfaces.
    Type: Grant
    Filed: October 19, 1987
    Date of Patent: January 24, 1989
    Inventor: Michael C. Rizza
  • Patent number: 4637085
    Abstract: 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 retainer bodies of circular cross-section which are fitted half in the walls of the sill recesses and half in the beading. The sills respectively feature webs, which have approximately parallel sides and which are directed towards the road surface so as to extend into the beading. The sections of beading separated by the webs feature concave recesses on their sides opposite the respective webs, and in each case the outer one of such recesses is engaged by the retainer body concerned.
    Type: Grant
    Filed: April 25, 1985
    Date of Patent: January 20, 1987
    Inventor: Alfred Hartkorn
  • Patent number: 4601604
    Abstract: 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 less elastic than the fluid-polymer. The elasticity of the fluid-polymer allows the joint to accommodate changes in the size of the joint due to e.g. thermal expansion and contraction. Plastic flow of the core permits changes of shape of the joint to be absorbed without causing excessive stressing of the sides of the channel to which the fluid-polymer adheres.
    Type: Grant
    Filed: July 25, 1983
    Date of Patent: July 22, 1986
    Assignee: ALH Systems Limited
    Inventors: John R. G. Clark, Philip J. Wade
  • Patent number: 4572700
    Abstract: 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 permittivity from 0.2 seconds.sup.-1 to 2.0 seconds.sup.-1 and a dynamic permeability after 10.sup.6 loadings of at least 10.sup.-4 centimeters per second.Apparatus and systems using such drainage mat.
    Type: Grant
    Filed: March 31, 1983
    Date of Patent: February 25, 1986
    Assignee: Monsanto Company
    Inventors: Joseph Mantarro, Keh-Chang Liu, Barry J. Dempsey
  • Patent number: 4569615
    Abstract: 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 rectangular cross section with rounded corners in which metal bars of like cross section but shorter length are inserted, both the passages and bars have cooperating indexing devices which center the bars in each passage spaced equidistant from the ends thereof so as to maintain them over the space between the roadway, bridge or like sections.
    Type: Grant
    Filed: August 2, 1983
    Date of Patent: February 11, 1986
    Assignee: Columbia Chase Corporation
    Inventors: Gerald L. Goldman, Joseph W. Gallagher, William A. Merlack
  • Patent number: 4445640
    Abstract: 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 resilient rubber-like material is positioned on each side of the railway. Shims are used to position the uppermost surfaces of the center and side pads flush with the tops of the rails. On each side edge of the crossing there is provided a cap of resilient rubber-like material that includes a first leg that extends horizontally under a portion of each side pad and a second leg that extends vertically downwardly and covers the ends of the shims and a portion of the ends of the cross-ties the cap may include an extension pad and an L-shaped reinforcing member.
    Type: Grant
    Filed: March 31, 1982
    Date of Patent: May 1, 1984
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Eugene Caillet
  • Patent number: 4397579
    Abstract: 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 rectangular cross section with rounded corners in which metal bars of like cross section but shorter length are inserted, both the passages and bars have cooperating indexing devices which center the bars in each passage spaced equidistant from the ends thereof so as to maintain them over the space between the roadway, bridge or like sections.
    Type: Grant
    Filed: June 8, 1981
    Date of Patent: August 9, 1983
    Assignee: Columbia Chase Corporation
    Inventors: Gerald L. Goldman, Joseph W. Gallagher, William A. Merlack
  • Patent number: 4290249
    Abstract: 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 substantially M-shaped cross section. The seal strip comprises an elongated web member for spanning a gap between a pair of structural slab members. The web member has flange portions extending along each longitudinal edge thereof. The flange portions support resilient grippers which are urged into sealing engagement with abutments on the slab members by spring means embedded within the elastomeric seal strip.
    Type: Grant
    Filed: December 17, 1979
    Date of Patent: September 22, 1981
    Assignee: Schlegel Corporation
    Inventor: Ronald H. Mass
  • Patent number: 4288173
    Abstract: 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 component. The base component is placed on the floor or concrete slab and the core or upper component is inserted into the base and positioned with its upper end flush with the surface of the floor by the cap. A suitable core material is placed into the upper component to provide a joint assembly which compensates for expansion or contraction of the floor or setting bed thereby eliminating buckling and cracking of the floor.
    Type: Grant
    Filed: December 19, 1979
    Date of Patent: September 8, 1981
    Inventor: Albert T. Nick
  • Patent number: 4285180
    Abstract: 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 through eyelets in the edge of the waterstop. The present invention provides a waterstop which has integral transverse loops of wire or similar strong material embedded in the waterstop material but projecting outwardly from it so that they can be used directly to attach waterstop to structure such as reinforcing rods or scaffolding. To provide strength, longitudinal stiffening members in the form of strands of cotton, wire or synthetic plastics material are knitted or woven into the inner portions of the loops embedded in the plastic or rubber waterstop material. These strands stiffen the waterstop and also help firmly to anchor the loops.
    Type: Grant
    Filed: March 27, 1979
    Date of Patent: August 25, 1981
    Assignee: Schlegel (UK) Ltd.
    Inventors: Kevin Hinton, Martin S. Barnes
  • Patent number: 4093120
    Abstract: 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, and the abutting edges thereof are formed with interlocking means to provide moisture-proof seams between them. The elastomeric pads are secured in place by means of rods extended longitudinally through them, with the ends of the rods being secured to anchor means.
    Type: Grant
    Filed: January 24, 1977
    Date of Patent: June 6, 1978
    Assignee: Park Rubber Company
    Inventor: David L. Canfield
  • Patent number: 4058947
    Abstract: 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 material, and the hot (or internal) side of the joint is at least partially filled by a compressible resilient mass of synthetic inorganic refractory fiber.
    Type: Grant
    Filed: September 17, 1975
    Date of Patent: November 22, 1977
    Assignee: Johns-Manville Corporation
    Inventors: Paul Lewis Earle, George William Snider
  • Patent number: 4030852
    Abstract: 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 adjacent members, such as paving or wall members, which space may vary with thermal expansion and contraction of such sections. As installed between paving members, seal is nominally rectangular in cross-section with generally curved upper and lower support walls, which are resilient and adapted to selectively resist buckling from horizontal compression when installed in compression between such sections, and with generally vertical sealing side walls adapted to be urged into sealing relation against adjacent vertical surfaces by the resistance to compression of such support walls.
    Type: Grant
    Filed: July 15, 1975
    Date of Patent: June 21, 1977
    Assignee: The General Tire & Rubber Company
    Inventor: Richard D. Hein
  • Patent number: RE29377
    Abstract: A frangible package containing sealant for sealing joints between adjacent construction panels or slabs composed of such materials as concrete, masonry units and curtain wall, includes an elongated tube-like bar having a pair of continuous lines of weakness extending longitudinally along its entire length on opposite sides thereof to enable the bar to be broken apart longitudinally along the lines and thus to release the joint sealant disposed within the hollow interior of the bar, and a pair of end walls for sealing the sealant within the bar. The bar is adapted to be fastened to and extend along the top edge of an expansion joint filler strip, and a pair of external up-turned flanges extending from opposite sides of the bottom portion of the package anchor it to the adjacent slabs after they are positioned on opposite sides of the package and strip so that the top portion of the package may be pulled away readily from its bottom portion leaving it in place to help support the sealant.
    Type: Grant
    Filed: January 27, 1975
    Date of Patent: August 30, 1977
    Inventor: Robert O'Brill