With Transitory Core, Cap, Screed, Or Installation Means (e.g., Forms) Patents (Class 404/48)
  • Patent number: 10184243
    Abstract: An expansion joint seal for sealing a gap between two structural members that includes a coverplate, a snap-fit connector extending downwardly from the coverplate, a central spine connected to the coverplate with a snap-fit connector and extending downwardly from the connector, and foam seal members engaged with the central spine of the expansion joint seal. An expansion joint including spaced-apart structural members defining a gap between the spaced-apart members and the expansion joint seal.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: January 22, 2019
    Assignee: Watson Bowman Acme Corporation
    Inventors: Neil Hamilton, Gary Moore
  • Patent number: 10150138
    Abstract: To increase the strength and water resistance of a joint between two slabs of building materials, an interface for inserting bonding material between the joins of two interlocking members is used. The interface has two interlocking slabs, a tongue ridge, a groove slot, a fill channel, and a quantity of adhesive. The two interlocking slabs are the pieces of building material that are joined by the interface. To accomplish this, the tongue ridge connects to the first interlocking slabs, and the groove slot traverses into the second interlocking slab. The tongue ridge engages the groove slot to form an interlocking connection. The fill channel traverses through the tongue ridge along the length of the tongue ridge so that the quantity of adhesive can be deposited into the interlocking connection between the tongue ridge and the groove slot.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: December 11, 2018
    Inventors: Roger Thomas Haag, Carol Ann Haag
  • Patent number: 10145130
    Abstract: A sealing structure for the bottom of a beam space between precast panels, comprising: a first precast panel and a second precast panel substantially aligned to each other along a single plane and spaced from each other by a space, each of the first precast panel and the second precast panel defining an inner edge adjacent to the space; a soft pad abutting the space for sealing a bottom of the space; a plate abutting the soft pad; a fastening device securing a first side of the plate and a second side of the plate to the first precast panel and second precast panel, respectively, so as to assist the soft pad in the sealing of the bottom of the beam space; wherein the fastening device does not contact the soft pad.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: December 4, 2018
    Assignee: RUENTEX ENGINEERING & CONSTRUCTION CO., LTD.
    Inventors: Samuel Yin, Tzu-Liang Wu
  • Patent number: 9822525
    Abstract: The present invention relates to a method for installing a crack inducing expansion joint filler when placing concrete so as to reduce cracks generated during concrete construction, and an apparatus therefor and, more particularly, to a method for installing a concrete crack inducing expansion joint filler and an apparatus therefor which can vertically install and fix a plurality of fixed rod shafts on a bottom surface, place concrete, and then fit connection means to the fixed rod shafts while connecting and installing a joint filler member, having a cover means which can be attached and detached between the connection means, before the concrete is cured.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: November 21, 2017
    Inventors: Won Su Shin, Youn Ho Shin
  • Patent number: 8556535
    Abstract: A frame for installing strips of expansion joint material in freshly-poured concrete has an elongated spine around which other elements of the frame are assembled. Spaced retainers are attached along a spine side. A flat side panel extends along another spine side. A space formed between panel and retainer receives a strip of expansion joint material. Notches are spaced along the bottom edge of side panel and serve as guides for spaced nails driven through the joint material. Spaced stakes are driven into the ground to hold the frame in place as concrete is poured around the frame. Handles are attached to the spine for removal of the frame after the concrete has been poured. The nails, immersed in the fresh concrete, hold the strip in place as the frame is lifted from the concrete and the strip remains in place within the concrete.
    Type: Grant
    Filed: September 9, 2008
    Date of Patent: October 15, 2013
    Inventor: Hazell Trent
  • Patent number: 8511931
    Abstract: A junction between successive flat pre-fabricated elements which comprises an elastic transverse insert (9), an approaching mechanism (10) in the form of tie beams (23) and tensioning mechanisms (19). The flat pre-fabricated elements (2) to be assembled each have a transverse channel (3) adapted so as to receive the insert along the end transverse edges (4, 5) thereof, which must face each other after assembly on the ground, and conduits (7) of the tie beams. Each pre-fabricated element is successively arranged, one after the other, and the transverse insert is introduced into the transverse housing (6) formed by transverse channels facing each other. The tie beams are introduced into the conduits, the ends thereof projecting outside the pre-fabricated elements. The tie beams are then tensioned by a tensioning mechanism, at each of the ends thereof, in order to immobilize the flat pre-fabricated elements and thereby connected by the tie beams.
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: August 20, 2013
    Assignee: Lohr Industrie
    Inventors: Martin Klotz, Jean-Luc Andre
  • 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
  • Patent number: 7905680
    Abstract: Provided herein are a concrete dowel placement device and methods of use. The device 100 generally comprises a dowel receiving sleeve 110, a flange 120 formed to extend perpendicularly and completely about an open end b of the dowel receiving sleeve and at least one tooth-like locking structure 140a,b integrally formed on the outer surface 111 of the sleeve and proximate to the flange. The combination of the flange and the tooth-like locking structure secures the deviced to a concrete form so that a dowel rod 150 or piece of rebar placed therein maintains its position during a concrete pour.
    Type: Grant
    Filed: September 5, 2007
    Date of Patent: March 15, 2011
    Inventors: Steve Albritton, Earl Remmert, Ming Liang
  • Patent number: 7832163
    Abstract: A boundary screed rail assembly with screed rails (14) supported by feet members (42). The screed rails (14) providing a perimeter part (24) with upper and lower protection parts (26). The upper part (26) provides a planar horizontal surface (28), with a plurality of recesses (30) extending thereinto, alternating with downwardly extending engagement members (32) engageable in the concrete of a slab.
    Type: Grant
    Filed: April 22, 2005
    Date of Patent: November 16, 2010
    Assignee: Metal Screed (SC) Limited
    Inventor: Jean-Paul Krzowski
  • Patent number: 7547158
    Abstract: An expansion joint and the corresponding method of setting an expansion joint between adjacent slabs of poured concrete. To form the expansion joint a filler strip is provided. To protect the filler strip, a protective cap element is provided. The protective cap element has a top surface and opposing side surfaces. The structure of the protective cap element creates a long central groove. Pin corrals extend from the side surfaces of the protective cap element. The protective cap element is placed over the filler strip so that the filler strip is disposed within the groove. The protective cap element and the filler strip are anchored by driving anchor pins through at least some of the pin corrals. Concrete is then poured against the filler strip and the protective cap element, wherein the concrete envelops the pin corrals that are not engaging anchor pins.
    Type: Grant
    Filed: October 22, 2007
    Date of Patent: June 16, 2009
    Inventor: James Mucci
  • Patent number: 7381007
    Abstract: 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 by a suspension line extending between the first edge form section and the second edge form section, and a fracture inducing sheath suspended therefrom within the concrete structure. The sheath may define an elongate slit that exposes an internal channel that the suspension line traverses. Additionally, a method for forming a control joint in a monolithic pour concrete structure via the joint assembly is provided.
    Type: Grant
    Filed: August 6, 2007
    Date of Patent: June 3, 2008
    Assignee: Shaw & Sons, Inc.
    Inventors: Lee A. Shaw, Ronald D. Shaw
  • Publication number: 20080056819
    Abstract: 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 by a suspension line extending between the first edge form section and the second edge form section, and a fracture inducing sheath suspended therefrom within the concrete structure. The sheath may define an elongate slit that exposes an internal channel that the suspension line traverses. Additionally, a method for forming a control joint in a monolithic pour concrete structure via the joint assembly is provided.
    Type: Application
    Filed: September 1, 2006
    Publication date: March 6, 2008
    Inventors: Lee A. Shaw, Ronald D. Shaw
  • Patent number: 7334962
    Abstract: 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 by a suspension line extending between the first edge form section and the second edge form section, and a fracture inducing sheath suspended therefrom within the concrete structure. The sheath may define an elongate slit that exposes an internal channel that the suspension line traverses. Additionally, a method for forming a control joint in a monolithic pour concrete structure via the joint assembly is provided.
    Type: Grant
    Filed: September 1, 2006
    Date of Patent: February 26, 2008
    Assignee: Shaw & Sons, Inc.
    Inventors: Lee A. Shaw, Ronald D. Shaw
  • Publication number: 20080044225
    Abstract: A manhole installation and repair assembly. The assembly has a first load carrying member and a second load carrying member. Each load carrying member has a midspan seat arranged substantially at a midspan location of the respective load carrying member's. The midspan seats form a crossmember joint, the joint enables the load carrying member's to be arranged in the same plane and also provides for structural continuity between the load carrying members. The load carrying member's each have ground engaging locations and manhole ring retainer elements to grab on to the manhole ring holding the ring and cover in suspension below the load carrying members. An inflatable form liner is used to span the gap between the manhole ring and the top of the manhole cone.
    Type: Application
    Filed: June 22, 2007
    Publication date: February 21, 2008
    Inventor: Tom Swartz
  • Patent number: 6775952
    Abstract: 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 temporary formwork. The joint rail is secured to the formwork by mounting brackets. The joint rail comprises first and second joint edge members that are connected to each other by connectors with self-release elements. A plurality of studs extends downward and outward from each of the joint edge members into the concrete slabs provide a positive mechanical connection between the slab and the joint rail. As the concrete shrinks during hardening, the self-release elements of the connectors allow the joint to freely open. The joint edge assembly thus provides a self-releasing expandable joint between adjacent slab sections, and protects the edges of the adjacent slab sections from damage. A dowel aligner may also be integrated into the assembly, to allow proper positioning of dowels within the slab.
    Type: Grant
    Filed: July 31, 2002
    Date of Patent: August 17, 2004
    Assignee: Permaban North America, Inc.
    Inventors: Russell Boxall, Nigel A. Parkes, Patrick Harrison
  • 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: 6598364
    Abstract: 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 concrete section joint assembly (35) is pre-formed by using longitudinal sections having a channel (37) for holding elastomeric material (42), with the section supported from its underside by shaped support units, each mounted on two threaded studs (24). A specially designed nut (28) threaded on each stud (24) provides height adjustability and by rotation raises or lowers the height of support unit sides. The height adjustment, provided from above the assembly, can be performed before concrete pouring is completed and an upper edge portion of the elastomeric material or the upper edges of the channel are visible with the concrete surface, providing a reference height and slope for the concrete surface.
    Type: Grant
    Filed: July 16, 2001
    Date of Patent: July 29, 2003
    Assignee: Diuk Energy
    Inventor: Gideon Pelles
  • Patent number: 6289645
    Abstract: The invention relates to a shuttering element for separating a concrete section into concrete subsections. The shuttering element is of strip-like form and is adapted widthwise to the thickness of the concrete section. It comprises at least a strip-like shuttering board which is formed from a thin-walled, sheet-like material, with the result that, once the concrete section has been cast, the shuttering board can remain between the cast concrete subsections. The shuttering board preferably has recesses through which reinforcement struts can engage, with the result that the shuttering element according to the invention can be inserted even when reinforcement struts of a reinforcement are required to cross the shuttering element.
    Type: Grant
    Filed: February 1, 2000
    Date of Patent: September 18, 2001
    Assignee: Agrar Chemie AG
    Inventor: René P. Schmid
  • Patent number: 6164873
    Abstract: A stop-end pipe is used for formation of joining surfaces between adjacent wall elements made from a concrete casting, of the type consisting of a substantially trapezium-shaped profiled section divided up into at least two wings these wings are resiliently approachable to one another and also have a double internal reinforcing partition able to prevent collapsing as a result of compression. Preferably, the double partition is partially widened out so as to form a guide channel in which a guiding pawl for a working tool is able to slide.
    Type: Grant
    Filed: August 26, 1998
    Date of Patent: December 26, 2000
    Assignee: Finic B.V.
    Inventors: Giosue' Miotti, Marco Miotti
  • Patent number: 5980152
    Abstract: A highway coupling apparatus includes an expansion joint template, a plurality of rods, and a plurality of pipes. The template is positioned between longitudinal forms of a highway lane, creating two sections. After positioning the reinforcement bar in each section, the rods are extended through the expansion joint template and movably coupled to the pipes located in the second section. The highway coupling apparatus also includes a movement joint to couple adjacent lanes of the highway. The movement joint includes a plurality of eye bolts, L-bolts, movement joint templates, and a movement joint form. The eye bolts and L-bolts partially extend from the respective first and second lanes into the movement joint templates and are coupled. The movement joint templates are coupled to the movement joint form and prevent concrete from entering the eye bolt eyes during fabrication.
    Type: Grant
    Filed: September 12, 1997
    Date of Patent: November 9, 1999
    Inventor: Amos Rehberger
  • Patent number: 5904439
    Abstract: A field limitation joint has a core (101) of closed cell synthetic elastomer and aluminum L-section side members (102). The core is adhered to the side members by double sided adhesive strip (103) of the type having reinforcing filaments (104) running along the length of the strip. The core is pre-compressed and held in compression by tapes (105, 106). These are fabric reinforced and incorporate a central strip (107) of polymer film rendering them non-adhesive along their center. Also they have perforations (108, 109) along their length at the edge of the strip (107). The adhesive edges (110) of the tape (105) are adhered to the outside of upright limbs (111) of the side members and pass over the top of the side members. The perforations (108) run along the top edge of the side members. The other tape (106) extends between the other limbs (112) of the side members on their undersides, again with the non-adhesive strip preventing adhesion to the core (101).
    Type: Grant
    Filed: June 3, 1997
    Date of Patent: May 18, 1999
    Inventor: Seamus Michael Devlin
  • Patent number: 5826391
    Abstract: A formwork comprising a metal panel 11 having an upper portion 12, a lower portion 13 and a intermediate portion 14 displaced laterally out of the line of the panel 11, the portions 12 and 13 have spaced holes 15 through which reinforcing rods 16 project so that the ends of the reinforcing rods can be tied to similar rods in an adjacent slab to be poured in order to occupy the space at 17. A slab poured upon a timber deck 18 and the metal form provided by the panel 11 is retained in place by upright bracing rods 19 located at spaced intervals along the form 11 and passing through pairs of holes 20 and 21 in the intermediate section 14.
    Type: Grant
    Filed: November 15, 1996
    Date of Patent: October 27, 1998
    Inventor: Daniel Charles Underwood
  • Patent number: 5575126
    Abstract: An elastomeric, longitudinally continuous, elongate gasket for an expansion joint cover is described. The gasket has, in cross section, a central body portion and two side portions, one at each edge of the central body portion. The central body portion has horizontal top and bottom walls. The top wall may have a flat upper surface, and includes a series of regularly spaced, longitudinal regions having alternately greater and lesser resistance to lateral compressive forces. The bottom wall, which need not have a completely flat lower surface, includes a similar series of regularly spaced, longitudinal regions, with regions of lesser resistance on one wall being disposed vertically opposite regions of greater resistance on the other wall. Internal walls joining stronger regions of the top and bottom walls form a series of alternating diagonal struts which tend to reinforce and enhance the stability of the upper wall.
    Type: Grant
    Filed: December 28, 1993
    Date of Patent: November 19, 1996
    Assignee: MM Systems Corp.
    Inventors: Julian J. Attaway, Richard J. Gladue, Larry M. Petree, Claude M. Schuerman
  • Patent number: 5450699
    Abstract: A flexible partitioning member for concrete slab is disclosed, and this partitioning member divides the area (where the concrete slab is to be formed) into a plurality of small areas. The conventional partitioning members are made of wooden material, and can be used only for a horizontal concrete slab. The partitioning member according to the present invention is made by extruding a synthetic resin. The partitioning member includes a main body and a cap, and the cap is detached after the curing of the concrete slab. Into the space which is formed by detaching the cap, a sealing material is filled, so that rainwater cannot intrude into the concrete slab. Further, an inclined cutting line is provided, so that an extra portion can be detached, and that the partitioning member in this case can be used in an inclined concrete slab. In this case, the rainwater is better drained.
    Type: Grant
    Filed: December 23, 1993
    Date of Patent: September 19, 1995
    Inventor: Nam-Seung Lee
  • Patent number: 5380122
    Abstract: Joint forms for use in concrete slab formation. Such joint forms may be locked vertically and, if desired, laterally onto joint forms stakes by virtue of a number of aligned stake ear slots 26 and locking slots 28 which cooperate with corresponding ears and locking tabs on the stakes. The joint forms may include a number of stake retention slots aligned with the stake ear slots and locking slots, so that the stakes may be passed through portions of the joint forms in order to lock the forms laterally to the stakes as well as vertically so as not to separate from the stakes during concrete pouring.
    Type: Grant
    Filed: September 28, 1993
    Date of Patent: January 10, 1995
    Assignee: BoMetals, Inc.
    Inventors: Todd A. Rambo, G. P. Trigg
  • 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: 5092091
    Abstract: A concrete control key-joint and divider form made from plastic which is substantially wedge-shaped with vertically spaced holes to receive plastic stakes with the stakes being secured to the plastic form by plastic bolts at substantially its mid-section, so that the form can be easily set to grade and locked to the stakes, then the plastic stakes and bolts can be cut off to form a smooth screeding surface and an expansion joint. The forms also provide transversely spaced holes through which smooth rods or rebar may be inserted to firmly hold the form in a vertical manner and yet allow the concrete slabs to expand and contract. The plastic material is also designed to expand and contract at substantially the same expansion coefficient as cured concrete, thus minimizing the working of the key-joint.
    Type: Grant
    Filed: May 7, 1990
    Date of Patent: March 3, 1992
    Inventors: Harold L. Hull, Kenneth A. Berry, Stephen C. Benna
  • Patent number: 5052852
    Abstract: A concrete keyed joint is formed using a joint plate which has coplanar top and bottom sections interconnected to a parallel rearwardly spaced central section by rearwardly convergent upper and lower inclined sections and spaced pair of holes in the inclined section. Pegs or stakes support the joint plate vertically and are locked by wedges which allow vertical adjustment of the joint plate and then lock it in position. A resilient filler strip is fitted to the top of the plate to accommodate thermal expansion and contraction of the concrete slabs separated by the joint plate.
    Type: Grant
    Filed: October 5, 1990
    Date of Patent: October 1, 1991
    Assignees: Alma Irene Connolly, Lynne Patricia Oldfield
    Inventors: Paul F. Connolly, John N. Flint
  • Patent number: 4934863
    Abstract: This invention provides an adjustable, removable, reusable masonry tool for retaining expansion material employed in concrete work. The tool includes a plurality of elongated, substantially U-shaped caps which retain the expansion material, the caps being slidably engaged together for adjustment of the tool's length.
    Type: Grant
    Filed: February 8, 1989
    Date of Patent: June 19, 1990
    Inventor: William F. Brantner, Jr.
  • Patent number: 4904111
    Abstract: This invention discloses an adjustable support securable to metal decking to support a metal keyway form. The adjustable support can be used to establish keyway in concrete poured above ground level, particularly on metal decking. This method of producing a keyway in concrete on metal decking is a vast improvement over previous art and provides a secure, easy, inexpensive method of producing the keyway.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: February 27, 1990
    Assignee: Cardinal Manufacturing Co.
    Inventor: Albert P. Weisbach
  • Patent number: 4875801
    Abstract: A removable concrete expansion joint aligner and brace having an elongated base plate with a parallel row of ground pegs attached to the bottom and with a parallel set of aligning pegs mounted on the bottom in a position slightly removed from the parallel line of ground pegs so that an expansion joint may be held in position between the ground pegs and aligning pegs while fresh concrete is poured against at least one side of the expansion joint held in place by the expansion joint aligner.
    Type: Grant
    Filed: May 11, 1988
    Date of Patent: October 24, 1989
    Inventor: Anthony Montrym
  • 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: 4786026
    Abstract: A collapsible concrete bulkhead is insertable into a framework. The bulkhead has a pivotable divider plate which is located juxtaposition to a bulkhead plate and moves laterally thereof to reside in an offset base portion of the framework. The bulkhead assembly forms separate concrete sections when concrete is poured into the framework and forms a gap when the bulkhead assembly is removed. Optionally, a liner can be inserted adjacent to the bulkhead assembly and the bulkhead assembly removed before full cure of the concrete so that the concrete fills the void left by the bulkhead with the liner separating the concrete sections.
    Type: Grant
    Filed: April 11, 1988
    Date of Patent: November 22, 1988
    Assignee: James W. Smith, Jr.
    Inventor: Augustus W. Bailey
  • Patent number: 4548009
    Abstract: 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 is inserted into the fluid concrete aggregate, the V-shaped bottom of the arrow head structure moves aside any stones encountered in the concrete by the top of the arrow thereby facilitating installation. The top edges of the sides of the V-shape upon immersion in the concrete form locking anchors. Horizontal portions extending laterally on each side from the upper central stem portion of the joint to a point near the top of the V sides form flanges that provide channels which block downward water seepage at the joint.
    Type: Grant
    Filed: March 14, 1984
    Date of Patent: October 22, 1985
    Assignee: Quaker Plastic Corporation
    Inventor: Donald E. Dahowski
  • Patent number: 4531858
    Abstract: 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 in the screed-forming of concrete slabs of large area in smaller slab sections. The attachment device has a head portion projecting upwardly of the assemblage which serves as the screeding upper edge. This head portion is torn away after setting of the adjacent slab sections to provide recesses for the placement of caulking material protecting against the entrance of moisture.
    Type: Grant
    Filed: October 14, 1983
    Date of Patent: July 30, 1985
    Inventor: Robert H. Kirtley, Jr.
  • Patent number: 4507902
    Abstract: Apparatus to make up joints in the construction of cement flooring intended, either to definitely remain in the cement, either to be recuperated, the said apparatus having a first part whose walls interlock on a second part serving as support, which has feet that anchor perfectly in the levelling cement.
    Type: Grant
    Filed: June 10, 1982
    Date of Patent: April 2, 1985
    Inventor: Jean-Claude Lucas
  • Patent number: 4421272
    Abstract: Anchoring bars are disclosed which are installed at the joint between surfacing modules laid end to end along or between a pair of rails in a railroad-highway grade crossing. The modules are of the elastomeric type. Each module is provided with an improved series of surface gutters of different depths with complementary spike wells extending into the elastomer to drain water away. The elastomeric surface layer of the modules is bonded to one or more reinforcing, corrugated steel subgrade surfacing members which cooperate with the anchor bars and the elastomeric layer to lock the modules together.
    Type: Grant
    Filed: March 4, 1982
    Date of Patent: December 20, 1983
    Assignee: Structural Rubber Products Company
    Inventor: Jacob O. Whitlock
  • Patent number: 4388016
    Abstract: This invention relates to a novel, and improved expansion joint and seal for use in sealing concrete expansion joints. In general the device is constituted of an elongate flexible seal member inclusive of an expandable loop portion from the non-closed sides of which a pair of alternately disposed downwardly projected leg portions are extended. The device also includes a pair of elongate side frames, each of which is attached to an alternately disposed downwardly projected leg portion of said elongate flexible seal member, and a removable, elongate top cap for affixing upon the loop portion of said elongate flexible seal member. The improvement relates to, inter alia, in said member, side frames which contain one or more pairs of inwardly sloped laterally aligned ribs which form longitudinal channels with relatively wide bottom surfaces with restricted surface outlets, the channel forming a means of tenaciously bonding plastic cement to said side frames to form a flexible seal.
    Type: Grant
    Filed: June 2, 1981
    Date of Patent: June 14, 1983
    Assignee: Construction Materials, Inc.
    Inventor: Bertram J. Levey
  • Patent number: 4346542
    Abstract: 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 positioning the body on which the capping member has been mounted at the time of the concrete deposit, said leg members being adjustable to raise or lower the body.
    Type: Grant
    Filed: July 9, 1979
    Date of Patent: August 31, 1982
    Inventor: Kohkichi Tateno
  • Patent number: 4329080
    Abstract: 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 configured along at least one edge to form a first coupling part and along a central portion of at least one surface to form a second complementary coupling part so that any two of such webs can be attached to each other to provide a T-shaped assembly. In use the web forming the body of the T is inserted into the hardenable material, the bar web serving to align and position the inserted web. The bar web is then detached from the inserted web and releasably attached to another essentially identical web to form another T-shaped assembly suitable for use in the manner just described.
    Type: Grant
    Filed: September 15, 1980
    Date of Patent: May 11, 1982
    Assignee: Schlegel Corporation
    Inventor: John E. Elley
  • Patent number: 4194282
    Abstract: Gaps or seams between adjacent modular refractory fiber blanket insulation modules are filled by inserting therein strips of refractory fiber blanket. The strips are bent into a U-shape over a blade or plate and then inserted between two spreader members, called lubricators, to overcome the tendency of the blanket in the strip to adhere to the blanket in the module.
    Type: Grant
    Filed: April 28, 1978
    Date of Patent: March 25, 1980
    Assignee: Johns-Manville Corporation
    Inventor: Carlisle O. Byrd, Jr.
  • Patent number: 4090800
    Abstract: A device for forming surface joints in hardenable slab type structural materials such as freshly poured concrete is disclosed. The elongated joint former includes a pliable section having a depth which may be approximately one-fourth the thickness of the slab, with outwardly extending fins near its bottom and with a split upper end formed by a pair of separable walls. For implanting the pliable section in a fresh slab prior to its setting, a relatively rigid T-shaped implanting member is inserted into the split and the joint former is driven or vibrated down into the slab until the upper end of the pliable section is approximately even with or slightly below the surface of the slab.
    Type: Grant
    Filed: December 8, 1976
    Date of Patent: May 23, 1978
    Inventor: Vergil W. Koch
  • Patent number: 4050206
    Abstract: 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 plurality of the jointing materials are preliminarily positioned and adjusted to a predetermined height along the partition lines to form a plurality of partitions into which concrete, mortar or the like is deposited to produce laid surfaces of concrete or the like using the upper portions of the cover members as the reference levels. The jointing materials are completely buried in the concrete, mortar or the like except the upper portions of the cover members to absorb or compensate for the expansion or contraction of the concrete, mortar or the like.
    Type: Grant
    Filed: August 5, 1975
    Date of Patent: September 27, 1977
    Inventor: Akira Utsuyama
  • Patent number: 4012024
    Abstract: 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 adapted when in its operative position to have wet concrete poured on opposite sides thereof in order to form a pair of adjoining slabs with a key joint therebetween. A dual reentrant bend at the upper marginal portion of the strip establishes a downwardly facing locking channel for the upper ends of the stakes and also establishes an upstanding screed which extends upwardly to the grade level and is for the most part of single thickness.
    Type: Grant
    Filed: February 3, 1976
    Date of Patent: March 15, 1977
    Assignee: Superior Concrete Accessories, Inc.
    Inventor: Peter D. Courtois
  • Patent number: 4012159
    Abstract: A divider strip with an upstanding screed for use in connection with the pouring of a pair of adjoining concrete slabs, such strip being designed to be supported by a horizontal series of laterally and substantially equidistantly spaced stakes which are set below a predetermined grade level, and, in addition, being adapted when in its operative position to have wet concrete poured on opposite sides thereof in order to form a pair of adjoining slabs with at least one key joint therebetween.
    Type: Grant
    Filed: March 22, 1976
    Date of Patent: March 15, 1977
    Assignee: Superior Concrete Accessories, Inc.
    Inventor: Homer E. Berry
  • Patent number: 4008974
    Abstract: The invention relates to a two-part insertion member for use in the production of contraction or warping joints in continuously laid concrete slabs. The insertion member comprises a rigid lower part (to act as crack-inducing fillet) and a flexible upper part (to act as a sealing member) connected together, the lower part including an upstanding section which extends close to the uppermost extremity of the member. The invention also includes a method of forming sealed joints in concrete slabs.
    Type: Grant
    Filed: April 21, 1976
    Date of Patent: February 22, 1977
    Assignee: L. J. A. Miers (Exports) Limited
    Inventor: John Aubrey Miers
  • Patent number: 3967911
    Abstract: The invention relates to a two-part insertion member for use in the production of contraction or warping joints in continuously laid concrete slabs. The insertion member comprises a rigid lower part (to act as crack-inducing fillet) and a flexible upper part (to act as a sealing member) connected together, the lower part including an upstanding section which extends close to the uppermost extremity of the member. The invention also includes a method of forming sealed joints in concrete slabs.
    Type: Grant
    Filed: November 27, 1974
    Date of Patent: July 6, 1976
    Assignee: John Aubrey Miers
    Inventor: John Aubrey Miers
  • 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