Preformed Non-metallic Only Patents (Class 404/64)
  • Patent number: 10358777
    Abstract: A system which creates a durable seal between adjacent horizontal panels, including those that may be curved or subject to temperature expansion and contraction or mechanical shear. The durable seal system incorporates a plurality of ribs, a flexible member between the cover plate and the ribs and may incorporate a load transfer plate to provide support to the rib from below, and/or cores of differing compressibilities.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: July 23, 2019
    Assignee: Schul International Company, LLC
    Inventor: Steven R. Robinson
  • Patent number: 10352003
    Abstract: A system which creates a durable seal between adjacent horizontal panels, including those that may be curved or subject to temperature expansion and contraction or mechanical shear. The durable seal system incorporates a plurality of ribs, a flexible member between the cover plate and the ribs and may incorporate a load transfer plate to provide support to the rib from below, and/or cores of differing compressibilities.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: July 16, 2019
    Assignee: Schul International Company, LLC
    Inventor: Steven R. Robinson
  • Patent number: 10352039
    Abstract: A system which creates a durable seal between adjacent horizontal panels, including those that may be curved or subject to temperature expansion and contraction or mechanical shear. The durable seal system incorporates a plurality of ribs, a flexible member between the cover plate and the ribs and may incorporate a load transfer plate to provide support to the rib from below, and/or cores of differing compressibilities.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: July 16, 2019
    Assignee: Schul International Company, LLC
    Inventor: Steven R. Robinson
  • Patent number: 10323360
    Abstract: A system which creates a durable seal between adjacent horizontal panels, including those that may be curved or subject to temperature expansion and contraction or mechanical shear. The durable seal system incorporates a plurality of ribs, a flexible member between the cover plate and the ribs and may incorporate a load transfer plate to provide support to the rib from below, and/or cores of differing compressibilities.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: June 18, 2019
    Assignee: Schul International Company, LLC
    Inventor: Steven R. Robinson
  • Patent number: 10240302
    Abstract: A system which creates a durable seal between adjacent horizontal panels, including those that may be curved or subject to temperature expansion and contraction or mechanical shear. The durable seal system incorporates a plurality of ribs, a flexible member between the cover plate and the ribs and may incorporate a load transfer plate to provide support to the rib from below, and/or cores of differing compressibilities.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: March 26, 2019
    Assignee: Schul International Company, LLC
    Inventor: Steven R. Robinson
  • Patent number: 10113308
    Abstract: Tiles 21 and 22 are laid up with other tiles in the usual way at and along the joint 18, the joint 18 comprises a female strip 23 and a male strip 24 each of which have fastening flanges 25 and 26 and respective 90° walls 27 and 28. A slot or rebate in the female section 29 holds an expandable seal, typically in this case a hydrophilic seal. The female part and the male parts are assembled for relative movement so that a small gap perhaps 2 mm at 31 may be accommodated while the upper plate section 23 still provides a contiguous coplanar link between the parts.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: October 30, 2018
    Assignee: Underwood Companies Holdings Pty Ltd.
    Inventor: Daniel Charles Underwood
  • Patent number: 9915038
    Abstract: A system which creates a durable seal between adjacent horizontal panels, including those that may be curved or subject to temperature expansion and contraction or mechanical shear. The durable seal system incorporates plurality of ribs, a flexible member between the cover plate and the ribs and may incorporate a load transfer plate to provide support to the rib from below, and/or cores of differing compressibilities.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: March 13, 2018
    Assignee: Schul International Company, LLC
    Inventor: Steven R. Robinson
  • Publication number: 20140205378
    Abstract: An apparatus and method to install contraction joints in concrete slabs. The method uses a device, which inserts a strip of plastic or paper tape into freshly laced concrete, as the device is driven across a concrete slab. The tape is folded immediately prior to being inserted into freshly placed concrete, and functions to weaken the slab at the contraction joint location for the purpose of causing a crack to form in the slab. Plastic tape can be used, which functions as a moisture vapor retarder, and thereby, protects floor coverings from moisture damage, such as mold and mildew, at contraction joint locations.
    Type: Application
    Filed: January 17, 2014
    Publication date: July 24, 2014
    Inventor: Harvey Hilbert Haynes
  • Patent number: 8190401
    Abstract: Embodiments of the present invention recite a computer implemented method and system for creating a road model. In one embodiment, an identification of an intersection of a first road and a second road is received. At least one designated elevation is received at which the first road and the second road should merge. Finally a united layer is automatically created for the intersection wherein a first plurality of strings defining the first road and a second plurality of strings defining the second road intersect at the at least one designated elevation.
    Type: Grant
    Filed: June 4, 2007
    Date of Patent: May 29, 2012
    Assignee: Trimble Navigation Limited
    Inventors: Arnaud Boucherat, Matthew Lynn Jones
  • Patent number: 8146309
    Abstract: 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 laterally outwardly from each leg. As extruded, the legs are adjacent one another, and then spread apart as the concrete cures and shrinks, thereby inducing a substantially vertical crack in the concrete above the legs. The member includes a drain channel at the lower end of the legs. The gap between the legs which is created by the shrinking cured concrete provides a path from the crack to the drain channel for draining water entering the crack.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: April 3, 2012
    Assignee: Concrete Joint Ventures, LLC
    Inventors: David Keith Logemann, Neal Gene Logemann
  • 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: 7381008
    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 embed portion and a slidable portion.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: June 3, 2008
    Inventors: Lee A. Shaw, Ronald D. Shaw
  • Patent number: 7080491
    Abstract: A modular center plate for a cover that bridges the expansion gap and is supported by frame members of an expansion joint cover is made up of a plurality of formed members, each formed member being rectangular in plan and of uniform cross-section along an axis and having side edges parallel to the axis. The formed members are arranged with their side edges adjacent each other and with their ends overlying the support surfaces of the frame members of the expansion joint cover. End frame members are attached to the end edges of the formed members.
    Type: Grant
    Filed: June 14, 2000
    Date of Patent: July 25, 2006
    Assignee: E.M.E.H. Inc.
    Inventors: Thomas A. Shreiner, Howard J. Williams
  • Patent number: 7004674
    Abstract: A pre-fabricated warped pavement slab and a forming system for making the slabs. The forming system includes a plurality of forming sections which can be adjusted so as to form a warped-plane pavement slab. Also disclosed are methods for making the pavement slab and forming system. Also disclosed is a method for installing the warped pavement slab.
    Type: Grant
    Filed: December 23, 2004
    Date of Patent: February 28, 2006
    Assignee: Fort Miller Co., Inc.,
    Inventor: Peter J. Smith
  • Patent number: 6739805
    Abstract: 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 also relates to a method of installing a waterstop at or near the joints between adjacent foundation elements. The waterstop consists of one or more longitudinal strips, 1 or 2, of hydrophilic material, wherein the or each hydrophilic strip extends vertically along the interface between adjacent foundation elements, from a position at or near the top of the foundation elements, to a position at or near the base of the elements.
    Type: Grant
    Filed: January 15, 2002
    Date of Patent: May 25, 2004
    Assignee: Cementation Foundations Skanska Limited
    Inventor: Peter Gilbert Shotton
  • Patent number: 6705536
    Abstract: A concrete railroad grade crossing comprised of a precast concrete gauge panel extending between the rails and precast concrete approach panels which extend between each rail and the roadway. Elastomeric gauge seals are provided on the opposite sides of the gauge panels for sealing the space between the sides of the gauge panels and the rails. Elastomeric approach seals are provided on the inner ends of the approach panels for engagement with the outer sides of the rails. The inner end of each of the seals has a lobe formed therein which is embedded in the respective panels. Each of the lobes has an elongated bore or opening formed therein which has a rebar positioned therein. Portions of the lobe are cut away to expose the rebar. The exposed portions of the rebar are connected to DBAs in the panel by tie wires to firmly attach the seal to the panel.
    Type: Grant
    Filed: October 10, 2002
    Date of Patent: March 16, 2004
    Assignee: American Concrete Products Co.
    Inventors: Randall G. Birt, Thomas L. Egan
  • Patent number: 6681540
    Abstract: Disclosed is a unitary resilient insert member for filing an expansion joint gap formed between adjacent concrete slabs, floor tiles, or the like wherein the insert member consisting essentially of a preassembled wedge shape form. Also disclosed is a method for sealing the gap located between adjacent flooring or structural members by filling the said gap with a sealing material insert.
    Type: Grant
    Filed: February 27, 2002
    Date of Patent: January 27, 2004
    Inventor: E. Wayne Richardson
  • Publication number: 20030159388
    Abstract: Disclosed is a unitary resilient insert member for filing an expansion joint gap formed between adjacent concrete slabs, floor tiles, or the like wherein the insert member consisting essentially of a preassembled wedge shape form. Also disclosed is a method for sealing the gap located between adjacent flooring or structural members by filling the said gap with a sealing material insert.
    Type: Application
    Filed: February 27, 2002
    Publication date: August 28, 2003
    Inventor: E. Wayne Richardson
  • Patent number: 6532714
    Abstract: A method for restoring load transfer capability across a joint between two adjacent concrete slabs includes cutting a perpendicular to the joint and extending into each of the adjoining slabs. A generally flat joint tie is positioned in the slot before filling the slot with polymer concrete. The joint tie may have holes extending between the broad faces of the joint tie, with rounded corners, and made of fiberglass.
    Type: Grant
    Filed: March 16, 2000
    Date of Patent: March 18, 2003
    Inventors: Carl A. Ferm, Ransome J. Wyman, Paul Donald Krauss, Ernest Albert Rogalla
  • 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: 6272806
    Abstract: A joint insert is provided as well as a system and method for using same in the finishing of a surface's joint. The joint insert is a strip of material having a central longitudinal axis dividing the strip into first and second halves that are mirror-images about the central longitudinal axis. The strip is folded along the central longitudinal axis so that when the strip is positioned in the joint, the strip's central longitudinal axis and portions of the strip's first and second halves extend out of the joint. Gaps are formed between the joint and portions of the strip within the confines of the joint. A filler material is used to fill the gaps. As a final step in the finishing process, any of the strip and filler material extending above the plane of the surface over the joint is removed.
    Type: Grant
    Filed: March 24, 1999
    Date of Patent: August 14, 2001
    Inventor: S. Allen Face, III
  • Patent number: 6171016
    Abstract: A tubular reinforcing dowel system includes a plurality of fiber composite hollow, tubular dowel tubes comprising a first material and each including a longitudinally-extending bore. The dowel tube bores are filled with a second material, such as hydraulic cement, to form dowel members. The dowel members are mounted on a basket assembly which includes a pair of horizontal runners and multiple, longitudinally-aligned pairs of stands mounted on the runners. Each stand is connected to a respective dowel member end. A reinforcing method includes the steps of mounting multiple reinforcing dowel members on a basket assembly, placing the basket assembly on a crushed rock base of a roadway and pouring a cement slab on top of the base and encasing the dowel members underneath a transverse construction joint.
    Type: Grant
    Filed: October 20, 1998
    Date of Patent: January 9, 2001
    Assignee: Concrete Systems, Inc.
    Inventors: Dennis A. Pauls, John Thomas Whiteman
  • Patent number: 6052964
    Abstract: A method for restoring load transfer capability across a joint between two adjacent concrete slabs includes cutting a slot perpendicularly to the joint and extending into each of the adjoining slabs. The slot and joint are then integrally filled with polymer concrete to tie the slabs together. A joint tie may be placed in the slot and encased by the polymer concrete when restoring load transfer capability.
    Type: Grant
    Filed: March 16, 1998
    Date of Patent: April 25, 2000
    Inventors: Carl A. Ferm, Ransome J. Wyman, Paul Donald Krauss, Ernest Albert Rogalla
  • Patent number: 6036402
    Abstract: The present invention relates to paving and systems in respect of laying pavers, and devices to aid methods of laying pavers. The apparatus of this invention is referred to as a compensating member because it compensates for spaces between adjacent pavers as well as it compensates for any expansion of the pavers once they are in situ. The compensating member (2) is fabricated so that a portion of said compensating member is compressible and most preferably is made from at least one limb which has at least one compressible formation formed thereon or as a part thereof.
    Type: Grant
    Filed: October 10, 1997
    Date of Patent: March 14, 2000
    Assignee: Perma-Fit PTY Limited
    Inventors: Peter John Meldrum, Stephen John Linnertson
  • Patent number: 6012869
    Abstract: An expansion joint and seal for an expansion joint for use in structures where the joint has an intersection uses a seal with a solid thick keel extending along a lower edge of a central portion in an area of the intersection. The keel commences in a transition area between a conventional seal and the intersection. The seal increases in depth as the intersection is approached until it reaches a maximum depth at a mid point of the intersection. The keel minimizes distortion from racking during expansion or contraction of the joint. The seal is shaped to enable debris to be easily removed.
    Type: Grant
    Filed: March 25, 1998
    Date of Patent: January 11, 2000
    Inventor: Frank Anton Braun
  • Patent number: 5988648
    Abstract: Sealing device for sealing a joint (2) formed between two sections (3, 4) to be concreted, whereby the sealing device is embedded in the sections (3, 4) so that it is positioned at a right angle to the abutting ends (5, 6) of the joint (2) opposite the concreted sections (3, 4), whereby the sealing device is formed as a thin-walled, strip-shaped joint rail (1) made of rigid plastic and its dimensional shape and its wall thickness are so dimensioned that it is self-supporting.The rigid plastic is preferably a thermoplastic plastic, in particular HDPE, which is dimensionally stable in a temperature range of -20.degree. C. to +80.degree. C.
    Type: Grant
    Filed: October 17, 1997
    Date of Patent: November 23, 1999
    Assignee: Agrar Chemie AG
    Inventor: Rene P. Schmid
  • 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: 5910087
    Abstract: A control joint for forming and controlling concrete structures such as floors and tilt-up walls. The joint has a base and an upstanding web with an off-set section and is preferably extruded from plastic. In alternate embodiments, the joint has a base and a web with a removable top cap for forming a chamber or recess in the completed product. A reusable, reinforced form for structures such as stem walls is also disclosed which form can be cut at spaced-apart locations to the desired length.
    Type: Grant
    Filed: January 17, 1997
    Date of Patent: June 8, 1999
    Inventor: Randy A. Carter
  • Patent number: 5888017
    Abstract: A resilient expansion joint insert member for insertion into the expansion joint between adjacent concrete floor slabs. As the concrete slabs move further apart due to settling or thermal contraction, insert member covers the widened gap. Likewise, as the concrete slabs move closer together due to settling or thermal expansion, the insert member is compressed and absorbs the force as the slabs move against each other. The flooring material on the slabs near the expansion joint move beneath a cap of the insert member.
    Type: Grant
    Filed: September 22, 1997
    Date of Patent: March 30, 1999
    Assignee: Duramax, Inc.
    Inventor: Dawn Corrie
  • Patent number: 5737889
    Abstract: A device for sealing concrete joints is provided. The sealing device includes an elongate section (8) having a larger width than thickness (t). The section (8) has longitudinal edge portions (12, 13) and is intended for casting into two concrete structures (1, 2) for sealing a concrete joint area between the two structures (1,2). A swellable material (7, 14) is provided at least at the longitudinal edge portions (12, 13) thereof. The section (8) is made of a substantially rigid material and is provided with an internal cavity extending over a major part of its width.
    Type: Grant
    Filed: April 30, 1996
    Date of Patent: April 14, 1998
    Assignee: Ing. B. Habberstad AS
    Inventors: Bent Habberstad, Ivar Aanstad
  • Patent number: 5690447
    Abstract: A novel technique and seal-and-filling support for longitudinally extending concrete floor joints comprising a resiliently compressible cylindrical support member of cross-dimension similar to or lesser than the joint opening and compressibly inserted into the joint to seal the base thereof and to support thereupon and there along a semi-rigid epoxy filling the joint above the support and up flush to the concrete floor, and with the support having external longitudinally extending ribs or fins, and having hardness substantially matched to that of the epoxy filler.
    Type: Grant
    Filed: August 13, 1996
    Date of Patent: November 25, 1997
    Inventor: Steven N. Metzger
  • Patent number: 5619831
    Abstract: A method of forming a joint (2) and the member (8, 28) used therein between two cementitious faces (3, 4) in which the space between the faces is not of uniform cross-section, but has at least two different widths (5, 6) and is stepped with a shoulder (7). The joint member has a central upright portion (9), a lower portion or head (10) for positioning the member relative to the lower faces (5). The lower portion includes one or more sets of projections (14) which are resiliently deformable. Flanges 11 on either side of the central portion have limited movement relative to the central portion rest on the shoulder (7) of the faces when the space between the member and the faces 3, 4 is filled with a resilient but compressible product.
    Type: Grant
    Filed: August 23, 1995
    Date of Patent: April 15, 1997
    Assignee: Engineering Certifiers Limited
    Inventor: Alan M. Reay
  • Patent number: 5352064
    Abstract: A collapsible spacer for disposition between a form for a concrete foundation member and the underlying soil includes voids to allow the spacer to deform permanently and occupy a reduced volume when upheaving of the soil occurs. The spacer is fabricated from a material, such as expanded polystyrene foam, whose structural strength is not significantly altered by exposure to moisture. Embodiments of the spacer which are suited for use with forms for foundation beams and slabs are discussed.
    Type: Grant
    Filed: July 22, 1993
    Date of Patent: October 4, 1994
    Assignee: Plasti-Fab Ltd.
    Inventors: Bruce M. Carruthers, F. Gordon French, B. Wayne Heath, Randal B. Smith
  • Patent number: 5349797
    Abstract: A slab with two or more adjacent sub-slabs with a space therebetween and a liquid stop spanning the space, a portion of the liquid stop embedded in each of the sub-slabs. In one aspect, when joint material is present in the space, the liquid stop is, preferably, disposed beneath the joint material. A liquid containment system for a treatment facility with liquid containing vessel(s) and slab(s) which includes liquid stop apparatus for each slab/slab interface and liquid stop apparatus for each slab/vessel interface.
    Type: Grant
    Filed: April 29, 1993
    Date of Patent: September 27, 1994
    Assignee: The Dow Chemical Company
    Inventor: Jeffrey H. Stultz
  • Patent number: 5333432
    Abstract: A device for forming an expansion joint in a floor covered with ceramic tiles includes a first plastic angle floor section to be secured onto the floor and formed by a fastening leg and terminating leg, and a second plastic wall section shaped like a strip with interlocking elements on its outer side. Both sections are connected by an upper soft plastic bridge simultaneously covering the respective section segments from the top. In the lower portion of the device, there is a bridge which is a predetermined tearing bridge or support bridge bonded only on one side. The device serves for forming an expansion joint in the transition zone which connects and bridges a wall to a floor covered with ceramic tiles.
    Type: Grant
    Filed: December 4, 1992
    Date of Patent: August 2, 1994
    Assignee: Schluter Systems GmbH
    Inventor: Werner Schluter
  • Patent number: 5269624
    Abstract: An expansion joint system (10) traverses a slot (12) between concrete slabs (14, 16). The system includes nosings (32, 34) overlying an expansible member (40) of unitary construction and made from resilient material. The expansible member has ribbed flaps (42, 44) with holes (48) therethrough. The flaps are attached to the slabs by a layer (46) of adhesive bedding material. The expansible member includes a first segment (69), a second segment (82) and a third segment (96). The segments each include pad portions (70, 84, 98), and web portions (78, 92, 102) extending downward from the pad portions into the slot. The adjacent web portions are joined at locations (106, 112) vertically below the pad portions of the segments.
    Type: Grant
    Filed: April 30, 1992
    Date of Patent: December 14, 1993
    Assignee: Tremco, Inc.
    Inventor: Fred Kramer
  • Patent number: 5190395
    Abstract: A method to produce an expansion joint for adjacent roadway slabs having a gap therebetween. A recess is cut or formed into the surface of each adjacent roadway slab to form a pair of recesses parallel to and adjacent to the gap. The recesses are cleaned to a sound, dust-free and rust-free surface. Each recess is coated with a slightly resilient polymer primer to inhibit rusting and corrosion and to form a bonding surface. A mortar mixture of a slightly resilient polymer and aggregate is installed in each recess to form a pair of parallel nosings adjacent to the gap, the nosings being bonded to the roadway slabs. Opposed surfaces of the nosings are primed with a silicone primer. A temporary backing is inserted in the gap between the nosings. An initially liquid silicone sealant is installed between the nosings and on top of the temporary backing which will cure to form a flexible seal.
    Type: Grant
    Filed: February 12, 1992
    Date of Patent: March 2, 1993
    Assignee: Silicone Specialties, Inc.
    Inventors: Joe R. Cathey, Dale W. Baker
  • Patent number: 5088256
    Abstract: A concrete joint in concrete slab structures in which the joint includes an insert that is retained in centered position in a slot or recess formed in the upper surface of a concrete slab generally in alignment with a crack or fracture line extending downwardly from the slot or recess formed in the concrete slab. The bottom of the slot or recess is provided with a seal of cementitious material which extends completely across the bottom of the slot or recess and fills the crack or fracture line with the lower edge of the insert being inserted partially into the cementitious seal which is in the form of a quick setting sand and cement mixture which has high compression strength and low tensile strength and which will adhere to concrete surfaces but will not adhere to the insert. The space above the bottom seal on each side of the insert is then filled with a filler of an epoxy or similar material which encapsulates the spring clips and fills the slot or recess on both sides of the insert.
    Type: Grant
    Filed: August 6, 1990
    Date of Patent: February 18, 1992
    Assignee: Face Construction Technologies, Inc.
    Inventor: Samuel A. Face, Jr.
  • 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: 5048249
    Abstract: A gasket for a flush expansion joint cover comprises a longitudinally continuous central body portion and two longitudinally continuous side portions, one at either transverse edge of the central body portion. The central body portions and the side portions are comprised of a colorable thermoplastic rubber and are co-extruded to form an integral gasket structure. The side portions, which are adapted to keylock with mating grooves in structural members of the expansion joint cover, are harder than the central body portion to enhance retention of the gasket in place during use. The central body portion has a cellular core structure and a slightly concave upper surface to remain substantially smooth and flush with adjacent surfaces throughout the complete movement cycle of the expansion joint.
    Type: Grant
    Filed: December 26, 1990
    Date of Patent: September 17, 1991
    Assignee: Construction Specialties, Inc.
    Inventors: Thomas A. Shreiner, Paul Moulton
  • Patent number: 5035533
    Abstract: An expansion joint strip seal for use between spaced apart ends of sections of a highway, bridge, or the like, the strip seal having an elongate metallic rail with a C-shaped cavity therein embedded in the end of one of the sections, a second elongate metallic rail with a reverse C-shaped cavity therein embedded in the end of an adjacent section, and an elastomeric, elongate membrane having ear portions extending along its opposed edges, each of the ear portions being sealingly engaged by one of the metallic rails. The membrane, which is formed integrally in a single piece, has a central web portion, which is generally V-shaped in cross section, and each ear portion has an enlarged end portion and a transitional portion between the enlarged end portion and the central web portion. The transitional portion has upper and lower planar surfaces which sealingly engage planar sealing surfaces of an entrance of each metallic rail that engages such ear portion.
    Type: Grant
    Filed: January 24, 1990
    Date of Patent: July 30, 1991
    Assignee: D. S. Brown Company, Inc.
    Inventor: Howard R. Brown
  • 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: 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: 4916878
    Abstract: An apparatus for sealing expansion joints between concrete slabs and the like comprises a compression seal member, which fits within the expansion joint and provides an airtight and watertight seal; and a surface cover plate, which provides a planar pedestrian treadway, supports vertical loads, prevents dirt and debris from entering and accumulating within the expansion joint, and provides an aesthetically pleasing appearance.
    Type: Grant
    Filed: March 27, 1989
    Date of Patent: April 17, 1990
    Assignee: MM Systems Corporation
    Inventor: John D. Nicholas
  • Patent number: 4906129
    Abstract: A polymer plastic contraction-expansion joint element for the aggregate decking areas of a swimming pool. The element when used as a contraction joint is comprised of an elongated generally hollow body adapted for burial in the aggregate just below grade level. The body is formed of a bottom wall and parallel spaced apart upright sidewalls terminating at their upper distal ends in an open pocket including longitudinal protuberances oppositely extending along the inner face of the sidewalls. Adapted to overlie the body pocket at grade level in a removable mounting relation thereto is an imperforate polymer plastic cover having elongated skirts downwardly depending from the opposite longitudinal side edges thereof. The skirts are insertable between the body protuberances in a springlike interfit enabling the cover to be removed and replaced as appropriate.
    Type: Grant
    Filed: December 21, 1988
    Date of Patent: March 6, 1990
    Inventor: William J. Stegmeier
  • Patent number: 4901495
    Abstract: A bridging apparatus for spanning the space defined between two relatively movable structural floor members includes anchor sections adapted to be mounted to the edges of the floors and a two part bridging unit having outer edges pivotally connected to the anchor members. One inner edge of a bridging member includes a spaced pair of legs defining a groove arrayed at an acute angle to the floor, the other bridging member including a tongue riding in the groove. The upper leg of the member defining the groove is wedge-shaped the upper surface of the leg being parallel to the floor structures when the same are aligned horizontally.
    Type: Grant
    Filed: July 10, 1989
    Date of Patent: February 20, 1990
    Assignee: MIGUA Hammerschmidt GmbH
    Inventor: Reinhard Gottschling
  • Patent number: 4896994
    Abstract: An expansion joint strip seal for use between spaced apart ends of sections of a highway, bridge, or the like, the strip seal having an elongate C-shaped metallic rail embedded in the end of one of the sections, a reverse C-shaped elongate metallic rail embedded in the end of an adjacent section, and an elastomeric, elongate membrane having ear portions extending along its opposed edges, each of the ear portions being sealingly engaged by one of the metallic rails. The membrane, which is formed integrally in a single piece, has a central web portion, which is generally V-shaped in cross-section, and each ear portion has an enlarged end portion and a transitional portion between the enlarged end portion and the central web portion. The transitional portion has upper and lower horizontal surfaces which sealingly engage sealing surfaces of an entrance of the metallic rail which engages such ear portion, the entrance leading into an enlarged cavity of the rail which engages the end portion of the membrane.
    Type: Grant
    Filed: November 17, 1988
    Date of Patent: January 30, 1990
    Assignee: The D. S. Brown Company, Inc.
    Inventor: Howard R. Brown
  • Patent number: 4889445
    Abstract: An expansion joint for settable compositions such as concrete and the like comprises a base portion which is embedded in the composition before it sets with its upper surface adjacent the surface of the composition, and a cover portion which is engagingly received in a slot defined by the removal of a portion of the upper surface of the base portion after the composition hardens around the base. The cover portion is sufficiently wide to cover gaps in the composition adjacent the edge of the base portion. Two or more base portions may be secured together to provide an expansion joint to variable depths in the composition.
    Type: Grant
    Filed: August 12, 1988
    Date of Patent: December 26, 1989
    Inventor: Larry W. Vittone
  • Patent number: 4841704
    Abstract: 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 interconnecting member extends between the spaced apart side members at a point intermediate the top and bottom edges of the side members so as to form an H-shaped cross section. An elongated, bonding member projects outwardly from not more than one of the side members for anchoring the screed track to the concrete slab which is cast in place on one side of the screed track. A pair of oppositely extending flanges project outwardly from the lower edge of respective side members for transferring load between the concrete slabs cast in place on opposite sides of the screed rail.
    Type: Grant
    Filed: May 23, 1988
    Date of Patent: June 27, 1989
    Inventor: Stephen E. Jarrell
  • 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