Road Chair Per Se Patents (Class 404/136)
  • Patent number: 10106985
    Abstract: Two slab bolster elements having rails supported on legs for carrying rebar during casting are connected end to end by a blade for sliding longitudinally of the rail into a female receptacle and a releasable locking mechanism which acts to lock the blade in the female receptacle. The locking mechanism comprises a notch on one side surface of the blade and a projecting portion of the female receptacle engaged into the notch. The projecting portion is carried on the female receptacle by a portion which can flex to cause the projecting portion to move away from the side surface of the blade. The female receptacle includes a manually depressible member on a side of the female receptacle opposite the projecting portion which when depressed provides motion toward the female receptacle which causes the projecting portion to move out of the notch.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: October 23, 2018
    Assignee: Better Air Manufacturing Ltd.
    Inventors: Glendon Waldner, Daniel Waldner, Philip Waldner
  • Patent number: 8702342
    Abstract: In various embodiments, a multi-application apparatus with two or more applicators may be used to form markings on a driving surface A profileable material may be applied to an area of the driving surface by one of the applicators during a pass of the apparatus by the area to create a first marking. More of the profileable material may be applied to at least a portion of the area by another of the applicators during the same pass to create a second marking. The second marking may have a more varied profile than the first marking. In embodiments, various parameters may be independently controlled during operation of the multi-application apparatus. In embodiments, the markings may be applied such that the profileable material forming the second marking is at least partially fused with the profileable material forming the first marking.
    Type: Grant
    Filed: April 15, 2013
    Date of Patent: April 22, 2014
    Assignee: Specialized Pavement Marketing, Inc.
    Inventors: Mark A. Price, Spencer L. Cantwell, Robert Busse
  • Patent number: 8511935
    Abstract: A pavement dowel bar assembly is reinforced to maintain the alignment of dowel bars during the paving process. An exemplary dowel bar assembly includes a side frame having at least one bracing member. The bracing member is convertible between a first, stored position and a second, deployed position. When in the first, stored position, the bracing member is generally parallel to a plane defined by the side frame. In the second, deployed position, the bracing member is at an angle relative to the plane of the side frame. The dowel bar assembly may further include a plurality of dowel bars and a second side frame. Also described herein are methods of reinforcing a pavement dowel bar assembly with a convertible bracing member.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: August 20, 2013
    Inventor: James Thomas
  • Patent number: 8443567
    Abstract: A spacer is provided for attachment to a pair of intersecting reinforcement wires to space them from a form. The spacer has a base member having a generally planar shape and two opposite sides, one of the sides having two continuous grooves that extend completely across the base member and that intersect one another for receiving therein a pair of intersecting reinforcement wires, and the other of the sides having a projection that projects outwardly therefrom a preselected distance to space the intersecting reinforcement wires a specified distance from a form. A cover member covers the one side of the base member. The cover member has fastening portions that coact with complementary fastening portions on the base member to fasten the cover member to the base member with the intersecting reinforcement wires sandwiched therebetween to thereby attach the spacer to the intersecting reinforcement wires.
    Type: Grant
    Filed: September 20, 2010
    Date of Patent: May 21, 2013
    Inventors: David G. Swenson, Roger J. Patterson
  • Patent number: 8312687
    Abstract: A support frame system for placing and securing reinforcing bars, which includes an elongated beam member which includes a plurality of saddles at a predetermined spacing. Support legs extending from the beam member hold the beam member, and thus also the re-bars, at a fixed distance above the mold. Once re-bars have been laid in the desired saddles, mating clips can be placed around each re-bar and locked onto the beam member to prevent movement of the re-bars during a subsequent concrete pour. Two or more of these beam members can be connected together end-to-end using mating prongs and holes at opposite ends of each beam member.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: November 20, 2012
    Inventor: Michael Dean Yee
  • Patent number: 8142104
    Abstract: A support leg for a dowel sleeve, the dowel sleeve having a hollow open body at a second end spaced from one end of the body connectable to a construction plate. The support leg has a spigot engagable in the body, the exterior of which is engaged by an abutment face. The effective length of the support leg is adjustable by selectively detaching one or more leg member segments, each provided with a disc-like base member.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: March 27, 2012
    Assignee: Connolly Key Joint Pty. Ltd.
    Inventors: John Mercer, Mark Anthony Connolly
  • Patent number: 8099925
    Abstract: A chair and system for securing, supporting, and connecting cable, having troughs supported on support members for receiving cables. The troughs can each have locks for closing the troughs and securing the cables in place.
    Type: Grant
    Filed: September 4, 2009
    Date of Patent: January 24, 2012
    Inventor: Wade S. Coons
  • Publication number: 20110255920
    Abstract: A dowel sleeve has a tubular body with a mounting assembly at one end for releasable connection to a construction plate, and a leg support engagable at the other end for adjustable support. The construction plate has spaced non-circular holes. A first flange of the mounting assembly has a complementary profile, of smaller dimensions, to the non-circular holes, while a second flange has a similar profile, of larger dimensions, with its major-axis non-aligned with the major-axis of the first flange. The first flange is inserted through one of the non-circular holes, and the tubular body is rotated so the first and second flanges engage opposed faces of the construction plate. The leg support has a spigot engagable in the tubular body, the exterior of which is engaged by an abutment face. The effective length of the support leg is adjustable by selectively detaching ne or more leg member segments, each provided with a disc-like base member.
    Type: Application
    Filed: June 27, 2011
    Publication date: October 20, 2011
    Applicant: CONNOLLY KEY JOINT PTY LTD
    Inventors: John Mercer, Mark Anthony Connolly
  • Publication number: 20110252716
    Abstract: A pneumatic support comprises a long hollow body, tapering towards the ends and two pressure/tension elements. The hollow body is embodied by a sleeve of gas-tight, flexible, non-stretch material. Said sleeve can be formed from two layers, an external non-stretch, flexible sleeve and an inner gas-tight elastic bladder. The hollow body can be pressurised with compressed gas by means of a valve. The both pressure/tension elements lie along diametrically opposed surface lines of the hollow body on the same and are partly or completely frictionally connected to the hollow body along said surface lines. The ends of the pressure/tension elements are frictionally connected to each other.
    Type: Application
    Filed: May 17, 2011
    Publication date: October 20, 2011
    Inventors: Mauro Pedretti, Rolf Luchsinger
  • Patent number: 7900880
    Abstract: A support stand for a lifting anchor to be incorporated into a concrete component during casting thereof is formed from two identical components of bent wire assembled together to form an upper support frame and legs projecting downwardly from the frame. The two components are connected by only two welds, each at one of two zones of intersection of the two components.
    Type: Grant
    Filed: November 29, 2006
    Date of Patent: March 8, 2011
    Assignee: ITW Construction Products Australia Pty Ltd
    Inventors: Robert Urquhart Connell, Barry William Crone
  • Patent number: 7866114
    Abstract: This invention is related to a device to separate or out a distance apart structural metallic elements for concrete, between them or in relation to a surface on which concrete is going to be poured, in order to obtain coatings or layers of concrete with specified widths. The chair proposed it is made preferably of propylene and it is made by two vertical walls opposite each other and joined by a third wall orthogonal to the first two (load axis); the vertical opposite walls show on its upper end a semi-circular cavity to support an structural metallic element to be supported, and in its lower part, each one of the walls is divided in three legs, being defined the two on the ends by the vertical edges and a cavity preferably in form of arch between them, and the third being a projection of the transversal wall. All the walls show hollow arches in their lower ends and in some embodiments, preferably for pieces with heights above 2.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: January 11, 2011
    Inventor: Juan Antonio Ferro De La Cruz
  • Patent number: 7810298
    Abstract: A bar support apparatus has a first body with a first clamping structure and a second clamping structure extending from a top thereof, and a second body having a first clamping structure and a second clamping structure extending downwardly from a bottom thereof. The clamping structures of the second body engage the clamping structures of the first body. The second body also has a third clamping structure and a fourth clamping structure extending upwardly from a top thereof. A rebar is received within first and second clamping structures of the first and second bodies.
    Type: Grant
    Filed: August 23, 2007
    Date of Patent: October 12, 2010
    Inventor: Felix L. Sorkin
  • Patent number: 7607618
    Abstract: A system and apparatus are provided for managing cables, wires, and cords, and more particularly, to organize and route cables and wires in various directions. For example, there is provided an apparatus comprising: a cable clip with a rigid circular base and a flexible dome-shaped head, wherein the base includes a central aperture and an adhesive layer covered by a protective film on one side and is integrated with the dome-shaped head on the other side. The dome-shaped head has a plurality of slots that extend radially across the head and intersect with one another, forming an opening. In one embodiment, each slot has circular shaped arcuate openings on opposites sides creating first and second transit paths for a cable or wire. The resulting dome-shaped head has a plurality of retaining arms that receive cables, retains them, and can be attached to a surface by a variety of methods.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: October 27, 2009
    Assignee: Belkin International, Inc.
    Inventors: Kenneth Mori, Dale Tadashi Honda
  • Patent number: 7404691
    Abstract: An apparatus for combining adjacent concrete slabs including a dowel, an end cap, and a side frame. The end cap has a hood defining a curved channel extending at least partially around a dowel receiving end. The side frame has at least one wire received in the curved channel. Also, an end cap having an integrally formed supporting portion including first and second wire supports for supporting substantially parallel side frame cross wires. Also, an end cap including first and second sleeves positioned along opposing tangents of the outer peripheral surface of the end cap for receiving differing portions of a side frame, and further including a resilient protrusion for receiving a further differing portion of the side frame.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: July 29, 2008
    Assignee: Dayton Superior Corporation
    Inventors: Clifford D. Bennett, Kenneth Lee
  • Patent number: 7373764
    Abstract: A bolster for use in construction has a beam, a first plurality of leg members on one side of the beam, a second plurality of leg members on an opposite side of the beam, and a plate having a first receptacle on one side and a second receptacle on the opposite side. The first receptacle receives a portion of the first plurality of leg members therein. The second receptacle receives a portion of the second plurality of leg members therein. The plate is integrally formed of an extruded polymeric material.
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: May 20, 2008
    Inventor: Felix L. Sorkin
  • Patent number: 7284354
    Abstract: A bolster for use in construction has a beam, a first plurality of leg members on one side of the beam, a second plurality of leg members on an opposite side of the beam, a first plate having a receptacle on one side thereof and a second plate having a receptacle on one side thereof. The receptacle of the first plate receives a portion of the first plurality of leg members therein. The receptacle of the second plate receives a portion of the second plurality of leg members therein. The receptacles having a generally C-shaped cross section for resiliently contacting surfaces of the respective leg members. The plate is integrally formed of an extruded polymeric material.
    Type: Grant
    Filed: March 7, 2005
    Date of Patent: October 23, 2007
    Inventor: Felix L. Sorkin
  • Patent number: 7108453
    Abstract: A structure is described for supporting concrete reinforcement bars in a concrete structure, such as a footer or foundation. The structure includes a base member having a lower surface and an opposing upper surface. A plurality of pairs of opposing first leg members extend upward from the upper surface of the base member. Each of the first leg members have a lower end connected to the base member and an upper end distally disposed from the lower end. The structure includes a plurality of cradles for receiving the reinforcement bars, where each cradle is attached to the upper ends of a corresponding pair of the opposing first leg members. In a preferred embodiment, the structure includes horizontal support members disposed between and connecting the cradles. To retain the reinforcement bars within the cradles, preferred embodiments of the structure include retaining members that protrude inward from the inner surfaces of the opposing sidewalls.
    Type: Grant
    Filed: September 17, 2003
    Date of Patent: September 19, 2006
    Inventor: Terry L. Harris
  • Patent number: 7086203
    Abstract: A support apparatus (10) for providing a robust load bearing support for screed rails (12) during the laying of concrete in which the height of the screed rails can be accurately adjusted and supported so as to allow the screed rails to be used for carrying concrete levelling devices such as a roller beam levelling device consists of a ground engaging base block (14), a first member (22) releasably connected at its lower end to the base block and a support member (28) releasably connected to the upper end of the first member for supporting the screed rails (12) at a desired height above the ground (16) where the first member and support member combination is of adjustable length to permit adjustment of the height of the screed rails carried thereby.
    Type: Grant
    Filed: January 4, 2002
    Date of Patent: August 8, 2006
    Inventor: George Owen
  • Patent number: 6962029
    Abstract: An improved chair for supporting intersecting wires forming a wire mesh at a pre-selected elevated position above a bearing surface during formation of a concrete slab is constructed having a base member shaped to rest on the bearing surface, a compressible support structure having a lower section affixed to the base member, a middle section and an upper section affixed to a setting shaped to support the wire mess at the elevated position. The chair is constructed having an improved compressible, generally bell-shape support structure having two pairs of opposing arched-shaped openings in the middle section forming two intersecting arches, each arch having a pair of opposing flexible legs that bow outward when a pre-determined load is applied to the upper section. The support structure further having a strengthening plate affixed on an interior surface of the upper section of the support structure formed by the intersecting arches.
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: November 8, 2005
    Assignee: John L. Lowery & Assoc, Inc.
    Inventors: Virginia Sabatier Lowery, John Leslie Lowery
  • Patent number: 6837017
    Abstract: A transverse bar assembly for use in constructing rebar mats for reinforcement of concrete paving includes a plurality of chairs and clips each having a lower portion that fixes to a transverse bar in the direction of its length and an upper portion for orthogonally receiving and holding locked in place a longitudinal bar, the chair also having a support extending to a base surface.
    Type: Grant
    Filed: August 14, 2002
    Date of Patent: January 4, 2005
    Inventors: Robert M. Hardy, Jr., Louis A. Waters, Jr.
  • Publication number: 20040031228
    Abstract: A transverse bar assembly for use in constructing rebar mats for reinforcement of concrete paving includes a plurality of chairs and clips each having a lower portion that fixes to a transverse bar in the direction of its length and an upper portion for orthogonally receiving and holding locked in place a longitudinal bar, the chair also having a support extending to a base surface.
    Type: Application
    Filed: August 14, 2002
    Publication date: February 19, 2004
    Inventors: Robert M. Hardy, Louis A. Waters
  • Patent number: 6663316
    Abstract: A structure is described for supporting concrete reinforcement bars in a substantially orthogonal relationship above a surface. The structure includes a base member having a central opening. At least a pair of long leg members extend upward from the base member on opposite sides of the central opening. At least a pair of short leg members also extend upward from the base member on opposite sides of the central opening, where the short leg members are positioned at about 90 degrees about the central opening relative to the long leg members. Attached to the upper extremities of the long leg members are upper bar-support members having opposing sidewalls which together form a upper channel therebetween. Similarly, attached to the upper extremities of the short leg members are lower bar-support members having opposing sidewalls which together form a lower channel therebetween.
    Type: Grant
    Filed: April 19, 2002
    Date of Patent: December 16, 2003
    Inventor: Terry L. Harris
  • Patent number: 6447203
    Abstract: The invention relates to supports for apparatus for transferring weight loads from one concrete structure to another. The devices are particularly suited for concrete highway construction. The support apparatus is used to position joint dowels that extend across paving joints between adjoining concrete slabs. The support apparatus comprises a first and a second support, each positioned on opposing sides of the paving joint. Each of the first and second supports comprise at least one longitudinally extending member having at least two cross members attached thereto such that one end of the cross member extends outwardly beyond the member. At least one clip comprising a body having a cavity therein, a gripper connected to the body and a cylindrical sleeve connected to the body is attached to each support. The clip is mounted to the end of a cross member so that the first end of the cross member is received into the cavity of the body and the attached gripper grasps the adjacent portion of the member.
    Type: Grant
    Filed: September 5, 2000
    Date of Patent: September 10, 2002
    Assignee: Meadow-Burke Products
    Inventors: Hector G. Ruiz, John E. Wachtendorf
  • Patent number: 6212848
    Abstract: A support device for use in tilt-wall construction including a support body having at least two support legs and a bottom extending between the support legs, and a base formed of a polymeric material. The base is affixed to the bottom of the support body. The base has a plurality of legs extending outwardly therefrom. The support body is of a generally U-shaped or L-shaped cross-section. The support body is formed of a single piece of a metal material. The support legs each have a slot formed adjacent an edge opposite the bottom. These slots open on opposite sides of the support legs.
    Type: Grant
    Filed: November 9, 1999
    Date of Patent: April 10, 2001
    Inventor: Henry R. Cooper
  • Patent number: 6178716
    Abstract: A reinforced-concrete floor slab thickness indicator/reinforcement rod spacer combination consists of a base, a spacer and an indicator erected from the base, and a bracket integrally and laterally extended from the spacer. The indicator is releasably attached to the bracket by a U-shaped clamping member cooperating with a cam member. The spacer consisted of a seat fixedly mounted on the base, a medial portion threadedly connected with the seat and a supporting portion slideably mounted on the medial portion.
    Type: Grant
    Filed: January 30, 1996
    Date of Patent: January 30, 2001
    Inventor: Hsin-hsiung Chen
  • Patent number: 6089522
    Abstract: The present invention is an improved high chair which positions and supports reinforcement members at a desired distance from a surface. The high chair has a body with a lower base portion, an upper connecting portion and an upper support surface. One or more supporting feet are preferably attached to the lower base portion to provide for secure support of the chair on a variety of surfaces, including harder surfaces such as a concrete mold or softer surfaces such as graded soil. The upper support surface includes a support structure configured to hold the reinforcement bars in a stationary position. The upper support surface also includes a plurality of holes which allows a head piece to be mounted to the chair. The head piece allows the height of the chair to be readily adjusted.
    Type: Grant
    Filed: October 2, 1998
    Date of Patent: July 18, 2000
    Assignee: Aztec Concrete Accessories, Inc.
    Inventors: Dale Haslem, G. Douglas Hartzheim, Steve Wilbur, Marty Lancial
  • Patent number: 6019546
    Abstract: The invention relates to supports for a device for transferring weight loads from one concrete structure to another. The device is particularly suited for concrete highway construction. The supports are used to position joint dowels that extend across paving joints between adjoining concrete slabs. The supports comprise a first and second support each positioned on opposing sides of the paving joint. The first support comprises a pair of legs that holds one end of the dowel therebetween and the dowel is then manually locked to that support by a pin lock.
    Type: Grant
    Filed: August 31, 1998
    Date of Patent: February 1, 2000
    Assignee: Meadow-Burke Products
    Inventor: Hector G. Ruiz
  • Patent number: 5819493
    Abstract: A new Height Adjustable Rebar Support System for supporting rebar at various elevations during pouring and curing of concrete with a single adjustable support member. The inventive device includes a first panel having a first lower slot, a second panel pivotally attached to the first panel having a second lower slot, an aperture and a notch into the first panel near the first lower slot, and a beaded cord secured to the second panel. The end of the beaded cord opposite of the second panel selectively engages the first panel through the aperture thereby adjusting the separation of the first panel with respect to the second panel opposite of the pivoting point. The beaded cord comprises a plurality of color coded beads for indicating the exact height selected with a selected color of bead juxtaposed to the first panel within the aperture.
    Type: Grant
    Filed: February 21, 1997
    Date of Patent: October 13, 1998
    Inventor: Michael LeMoignan
  • Patent number: 5791816
    Abstract: A dowel support for use in concrete joint restraint system as is typically used for slabs in highway construction is provided, as is a concrete reinforcing system employing the dowel supports. The dowel support is used to support dowels of different diameters and, in a preferred embodiment, is made of a noncorrosive material to reduce corrosion at the dowel-support interface. The support of the present invention is especially suited for fiberglass reinforced plastic (FRP) dowels which are resistant to corrosion, and the combination of the fiberglass dowel with the support of the present invention provides an improved alternative to the steel basket supports presently in use. The supports use a wedge-shaped vertical mouth to receive the dowels, which are supported between the sides of the mouth at the width corresponding to the diameter of the dowel.
    Type: Grant
    Filed: October 31, 1996
    Date of Patent: August 11, 1998
    Inventor: James McCallion
  • Patent number: 5700385
    Abstract: An apparatus or clip is disclosed, which can be used both to securely hold and support a heating cable or mat at a desired depth within a slab form, and to easily locate the cable or mats once embedded using a simple magnetic field. The clips of this invention are constructed from a material that has a suitable magnetic susceptibility for permitting detection by a weak magnetic field. Consequently, the clip can be located using a simple bar magnet or a common stud finder. The high magnetic permeability of the clip compared to the surrounding earth, asphalt or concrete allows the clip to be readily located by a stud finder. As a stud finder is passed over the clip, the magnetic needle is attracted to the clip apparatus by the emitted magnetic flux. The configuration of the clip includes two upright legs and two horizontal feet. The legs are bent to support and space the mat or cable above the feet.
    Type: Grant
    Filed: January 4, 1996
    Date of Patent: December 23, 1997
    Inventor: Thaddeus M. Jones
  • Patent number: 5678952
    Abstract: A concrete dowel placement apparatus comprising a base member and an elongate, tubular dowel receiving sheath which is connectible to the base member. The base member comprises an outer sleeve having first and second ends, and an inner sleeve which is disposed within the outer sleeve. Extending between the inner and outer sleeves is at least one reinforcement wall. Extending about the first end of the outer sleeve is a flange portion which defines a generally flat back surface. The inner sleeve defines an aperture which extends from the second end of the outer sleeve to the back surface of the flange portion, and is sized to accommodate a fastener such as a nail to facilitate the attachment of the base member to a concrete form subsequent to the abutment of the back surface of the flange portion thereagainst.
    Type: Grant
    Filed: November 16, 1995
    Date of Patent: October 21, 1997
    Inventors: Lee A. Shaw, Ronald D. Shaw
  • Patent number: 4953340
    Abstract: The rod-support chair of the present invention comprises a plastic channel made of a thermoplastic resin preferably selected from the group consisting of polycarbonate, aromatic polyester carbonate and aromatic polyesters. The channel is further characterized in that its physical dimensions and material properties permit its elastic and bending across its long dimension around at least part of the circumferential cross-section of a reinforcing rod and provide support for the rod for a period which is necessary for the concrete to set. The channel in its "in use" configuration is left in the cured, or set concrete and does not interfere with the setting process nor does it contribute to rust formation.
    Type: Grant
    Filed: June 16, 1989
    Date of Patent: September 4, 1990
    Assignee: Mobay Corporation
    Inventor: Howard A. Anderson
  • Patent number: 4913582
    Abstract: A screed chair having a base member and at least one threaded vertical member mounted therein supports a screed pipe on a yoke offset from the vertical member such that the yoke and pipe are isolated from rotation during rotation of the vertical member to adjust the height of the screed pipe.
    Type: Grant
    Filed: November 21, 1988
    Date of Patent: April 3, 1990
    Inventor: Lamar Barrett
  • Patent number: 4756641
    Abstract: An improved system is provided for elevating and supporting reinforcement rods above an earthen bed upon which concrete is poured. A flat, disk-shaped sand plate is disposed in contact with the earthen bed and has a plurality of channels adapted to receive pedestal feet extending upwardly from its top surface and radially from its center toward the periphery thereof. The height of the channel walls is greater above the periphery of the base than above the center of the base and the interior surfaces of the channel walls converge from the periphery toward the center and from the tops of the walls toward the top surface of the sand plate. A pedestal is disposed atop the sand plate with feet wedged into the pedestal foot channels. The configuration of the pedestal foot channels allows the sand plate to accommodate pedestals of a wide variety of sizes.
    Type: Grant
    Filed: September 2, 1987
    Date of Patent: July 12, 1988
    Inventor: George Hartzheim
  • Patent number: 4195809
    Abstract: A screed bar support stake and method are uniquely adapted to concrete screeding operations utilizing a vibratory-type screed. The stake is formed with means which allow it to be located after the concrete has been poured and is also adapted with means enabling the stake to be removed for reuse before the concrete hardens thus saving the cost of the stake. A mating drive member facilitates easy placement of the stake.
    Type: Grant
    Filed: August 23, 1978
    Date of Patent: April 1, 1980
    Inventor: Donald R. Morrison