Adjustable Support Patents (Class 52/678)
  • Patent number: 11572700
    Abstract: Systems and methods of shotcrete construction are contemplated whereby guide rails are placed in proximity and forward to a shotcrete receiving surface, with any guide rails disposed directly in front of the shotcrete receiving surface being configured to be offset from the receiving surface allowing shotcrete to be sprayed behind the offset guide rails. Following application of shotcrete, a screed configured to engage with and traverse along at least two of the guide rails may be used to rod the shotcrete via a protruding region of the screed extending beyond the guide rails, thereby removing excess shotcrete and imparting to the shotcrete surface a contour at least partially defined by the configuration of the guide rails and the configuration of the protruding region of the screed. Complex, precise, and even exotic architectural shotcrete installations may be created in this fashion by providing a suitable set of guide rails and screed.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: February 7, 2023
    Assignee: Shaw Craftsmen Concrete, LLC
    Inventors: Ronald D. Shaw, Jeff Counterman
  • Patent number: 11441286
    Abstract: A concrete chair elevates rebar above an underlying surface. The chair includes a rectilinear rim having a length, width and height of different distance. The rim may be oriented so each side abuts the underlying surface so rebar can be supported at three different heights above the underlying surface. In a foundation pour, the chair supports rebar at three different elevations. In a tilt wall pour, the chair supports rebar at three different elevations and produces a mark on the cured wall of considerably reduced extent.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: September 13, 2022
    Inventor: Oscar Sotelo
  • Patent number: 9863158
    Abstract: The present invention provides an adjustable, universal screed guide/control joint clip for positioning screed guide/control joints utilized in the placement of concrete in concrete slabs. The adjustable universal screed guide clip allows for the exact adjustment of the height of the screed guide attached thereto for the placement of the concrete slabs, and the adjustable universal screed guide clip also allows for the installation of the screed guide in applications which heretofore were not possible. The adjustable, universal screed guide/control joint clip of the present invention is capable of accommodating both large and small profile screed guides.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: January 9, 2018
    Inventors: Nicolas Adam, William Reed
  • Patent number: 9788493
    Abstract: An edging guide may include an anchor and a retainer that may be rotatably mounted to the anchor. The anchor may be buried in the ground during use and may include a post portion and a support portion. The retainer may be rotatably mounted to the support of the anchor and may function to secure hold one or more lengths of edging material.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: October 17, 2017
    Inventor: Lars Rosaen
  • Patent number: 9765533
    Abstract: A method including placing a screed hardware unit upright on a surface. The hardware unit includes a base and a post. The base is fastened on the surface such that the post extends vertically from the base. The method further includes adjusting a height of the hardware unit so as to be consistent with a desired grade. Concrete is poured up to and/or around the hardware unit, and the concrete is screeded at the grade indicated by the height of the hardware unit.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: September 19, 2017
    Assignee: Stego Industries, LLC
    Inventor: James Steven Lutes
  • Patent number: 9677690
    Abstract: A multi-purpose universal support is disclosed that can be configured to support multiple pipes, pipe junctions, vertical strut channels, horizontal strut channels, and thread rods. The disclosed support system allows for quicker installation, easy height adjustments, and a fewer supports than previously known supports.
    Type: Grant
    Filed: February 8, 2010
    Date of Patent: June 13, 2017
    Assignee: THOMAS & BETTS INTERNATIONAL, LLC
    Inventors: Daniel Lalancette, Alain Michaud, Adrian Paunescu, Dominic England, William Smith
  • Patent number: 9470354
    Abstract: An adjustable sanitary hose donut has a variable inner diameter, which allows the adjustable sanitary hose donut to be used with multiple hoses having different diameters. The adjustable sanitary hose donut has an annular body and a fastener. The annular body has a plurality of sectors that are divided by a plurality of flex points. The plurality of flex points allows the plurality of sectors to bend inwards or outwards from one another in order to adjust the inner diameter of the annular body. A first overlapping section and a second overlapping section of the annular body also aid in allowing the inner diameter of the annular body to expand or contract. The fastener is positioned through both the first overlapping section and the second overlapping section and is used to lock the annular body at the desired inner diameter.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: October 18, 2016
    Inventor: John Robert Boyanich
  • Patent number: 9347196
    Abstract: A footing assembly for a vertical post in post-frame construction is provided that supports three-axis loading and facilitates proper locating of the vertical post within a drilled hole. The footing assembly comprises post rail assembly that is slidably disposed within an elongated bridge plate member. A vertical post is furthermore slidably received within the post rail assembly along the vertical post lower end. The slidable connections of the post rail assembly and the vertical post facilitate two-axis position of the vertical post within an excavated hole once placed therein, while the telescoping construction of the vertical post facilitates a vertical positioning of a post bracket secured to the upper portion of the vertical post. The present invention allows for proper locating of a vertical post within a footing hole, while also providing a footing assembly that supports three-axis loading once installed.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: May 24, 2016
    Inventor: Bennie R. Wagler
  • Patent number: 9175800
    Abstract: An adjustable sanitary hose donut has a variable inner diameter, which allows the adjustable sanitary hose donut to be used with multiple hoses having different diameters. The adjustable sanitary hose donut has an annular body and a fastener. The annular body has a plurality of sectors that are divided by a plurality of flex points. The plurality of flex points allows the plurality of sectors to bend inwards or outwards from one another in order to adjust the inner diameter of the annular body. A first overlapping section and a second overlapping section of the annular body also aid in allowing the inner diameter of the annular body to expand or contract. The fastener is positioned through both the first overlapping section and the second overlapping section and is used to lock the annular body at the desired inner diameter.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: November 3, 2015
    Inventor: John Robert Boyanich
  • Patent number: 8955280
    Abstract: A clip for facilitating installation of foam insulation boards in a building structure. The clip comprises a body, a spacer and a foot for holding the insulation board, and a connection region for attachment of the clip to a building structural member. The clip is designed to ensure proper ventilation and greatly easy the proper installation of rigid foam insulation.
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: February 17, 2015
    Inventor: Paul Fabis
  • Patent number: 8776328
    Abstract: A rebar clip is provided for joining a larger diameter rebar to a smaller diameter rebar transverse to the larger diameter rebar. In a first embodiment the clip includes diameter reducing tabs extending into upper arches of the clip for engagement with smaller diameter bars crossed on top of larger diameter bars. In a second embodiment the clip includes diameter reducing tabs extending into lower arches of the clip so that the clip may hold larger diameter bars on top of smaller diameter bars. A guide track for a clip applying gun is provided which allows for use with either version of clips and with clips of the same nominal diameter for joining equal size bars.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: July 15, 2014
    Assignee: Kodi Klip Corporation
    Inventor: Jon R. Kodi
  • 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: 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: 8272184
    Abstract: Improved grips for retaining plural concrete reinforcing bars in a selected association are disclosed. The grips include a base portion and a retention portion including engageable structures establishing first and second spaced opposing pairs of clamping formations. Each of the plural reinforcing bars in the association is positively gripped along a length thereof between the clamping formations. Grip embodiments for parallel and right angle reinforcing bar associations are disclosed.
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: September 25, 2012
    Inventor: Donald E. Cech
  • Publication number: 20110072751
    Abstract: The present invention provides a masonry wall reinforcing bracket (2) comprising an elongate inter-course shear transfer member (4), the shear transfer member (4) comprising a rebar cradling feature (6). The shear transfer member (4) may further comprise a plate (5) operative to be located within at least a perpend (22) of a masonry wall (10). The bracket may further comprise a supporting member (28) that protrudes perpendicularly from the length of the shear transfer member (4). The supporting member (28) may comprises a plate operative to be located within a bed joint (24) of the masonry wall (10). The supporting member (28) may be a stabilising foot. The rebars and brackets are used in a bond beam (10) system incorporated within the wall (10).
    Type: Application
    Filed: June 2, 2009
    Publication date: March 31, 2011
    Applicant: Wembley Innovation Limited
    Inventors: Liam Clear, Hamish Corbett
  • Publication number: 20100162654
    Abstract: The invention relates to a device which is coupled to a standard conventional disk or lateral type spacer and which can be used to fix it to a relatively soft material into which the device is stick in, by pushing the device against a reference surface, which may be an adjoining wall or any form, thereby ensuring: the correct positioning of the structural elements to which the spacer is fixed, and therefore, the thickness of the concrete layer between said structural elements and the reference surface, which can provide insulation or serve as a construction joint; and hence the correct position and operation of the panel or wall of soft material serving as a construction joint or as a thermal or sound insulation material.
    Type: Application
    Filed: April 26, 2006
    Publication date: July 1, 2010
    Inventor: Juan Antonio Ferro De La Cruz
  • Publication number: 20090301025
    Abstract: A chair for supporting bars is comprised of telescoping sections which lock in an extended position. The chair is intended for supporting the reinforcing bars utilized in reinforced concrete construction, but can also support other long bodies. The sections of the chair can be extended and locked individually, so the height of the chair is determined by which sections of the chair are extended and which sections are collapsed. Each section may have two or more different locking heights to increase the height adjustability of the chair.
    Type: Application
    Filed: August 7, 2009
    Publication date: December 10, 2009
    Applicant: KODI KLIP CORPORATION
    Inventor: Jon R. Kodi
  • Patent number: 7597296
    Abstract: A clip of the present invention comprises a unitary body having an intermediate section and a first pair of opposing arms with each of the arms having an end portion, the body having an interior surface and an exterior surface, a second pair of opposing arms formed on the exterior surface of the body, each of the second pair of opposing arms having an end portion with the second pair of opposing arms being located between one of the first pair of opposing arms and the intermediate section.
    Type: Grant
    Filed: March 16, 2004
    Date of Patent: October 6, 2009
    Inventor: James F. Conway
  • Patent number: 7458192
    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.
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: December 2, 2008
    Inventor: John Leslie Lowery
  • Publication number: 20080184655
    Abstract: An alignment-affixing device for affixing a projecting member through a support structure substantially at a right angle, including at least a first cylindrical collar, the first collar dimensioned to receive a projecting member of varying sizes. The alignment-affixing device further includes a bridging section affixed orthogonally to the first collar, and a pair of arm flexures affixed orthogonally to obverse ends of the bridging section and parallel to the first collar, for releasably securing the alignment-affixing device to the support structure. When a projecting member is placed through the first collar and when the pair of arm flexures is engaged with the support structure and the bridging section is placed against the support structure, the projecting member is oriented substantially at a right angle with respect to the support structure.
    Type: Application
    Filed: April 5, 2008
    Publication date: August 7, 2008
    Inventor: R. Donald Evans
  • Patent number: 7114695
    Abstract: An improved, lightweight, portable, and self-contained concrete form for fabricating tilt-up concrete walls is provided. The form includes a frame made from metal frame members joined at their ends with the frame members forming the sides of the frame. The frame members may be channel shaped with their channels facing inwardly. A reinforcing mat comprising an array of crisscrossed rebars is disposed within the frame and is held in place with a plurality of brackets on the ends of at least some of the rebars and welded to respective frame members. The rebar mat is sized to be positioned in the mid portion of the frame and the brackets on the ends of the rebars are slid outwardly into and attached to the frame members by spot welding. The brackets are then spot welded to the ends of their rebars to form a rigid, lightweight concrete frame.
    Type: Grant
    Filed: December 9, 2003
    Date of Patent: October 3, 2006
    Inventor: W. Michael DeLoach, Sr.
  • 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: 6866445
    Abstract: A screed ski system includes a plurality of circlip saddles supported by corresponding stakes and a plurality of sections of screed ski tubing is snap-fit into the circlip saddles. After screeding of a first layer of aggregate or plastic material, the screed ski tubing and circlip saddles are removed as a unit. The spacers are optionally placed on the stakes, and the screed ski tubing and circlip saddles are placed as a unit on the spacers to facilitate screeding of a second layer of aggregate or plastic material over the first. Some of the screed ski tubing can be flexible to provide an arcuate screed ski.
    Type: Grant
    Filed: June 24, 2002
    Date of Patent: March 15, 2005
    Inventor: Paul M. Semler
  • Patent number: 6591574
    Abstract: A bracket assembly for installation of concrete forms for building foundations is disclosed which includes an elongate bar structure having opposed ends for mounting on the upper portions of vertically positioned concrete forms. The bracket assembly is provided to preselect and maintain the lateral spacing between the forms, and includes an adjustable rebar guide, shiftable along the length of the elongate bar structure for clamping rebar in a selected vertical position. The adjustable rebar guide includes a first clamping element, such as a bolt, which is operable to engage the elongate bar structure to fix the rebar guide at a selected location thereon. The adjustable rebar guide also includes a walled bracket for mounting a second clamping element which clamps rebar against the rebar guide in a selected vertical position.
    Type: Grant
    Filed: August 9, 2001
    Date of Patent: July 15, 2003
    Inventor: Troy L. Humphrey
  • Patent number: 6502361
    Abstract: Rod chairs for use in concrete form for positioning reinforcement rods prior to filling with concrete includes a flat rectangular metal blank for folding into a rod chair that includes an elongated planar portion having a pair of spaced portions to be bent to form a pair of generally curved end walls and a pair of horizontal parallel sides to be bent downwardly to form a pair of generally horizontal flanges, and having at least one three sided cut-out to form at least one elongated finger integrally with the planar portion to be bent upwardly to form a hook for holding a reinforcement rod therebeneath, a pair of recess cut-out apertures positioned at free ends of the planar portion, and elongated cuts intersecting the respective recess cut-out apertures and extend generally along the longitudinal axis to the respective free ends of the metal blank to be bifurcated and separated angularly from the recess cut-out apertures to the free ends to form a pair of leg portions wherein each leg portion to be bent to fo
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: January 7, 2003
    Inventor: Robert A. Hills, Sr.
  • Patent number: 6385938
    Abstract: A pair of curved arms attached to a body form an annular seat for holding a first diameter rebar, a slot through the outer diameter of the body forms a radially inward pathway to the seat for rebar, the apex of a convex bar attached to the body is yieldable radially outward to pressure of a second, larger diameter rebar in the seat and is not significantly moved by the first diameter rebar when the smaller diameter first diameter rebar is in the seat. The seat springally grips either diameter rebar.
    Type: Grant
    Filed: September 26, 2000
    Date of Patent: May 14, 2002
    Inventor: Norman W. Gavin
  • Patent number: 6311453
    Abstract: For use in securing a concrete form board, the form pin of the invention includes a clip having first portion substantially in the shape of a cylinder to be forced onto one end of a steel bar driven into sand, shale or clay and of an inside diameter substantially equal to the diameter of the bar, along with a tab portion having a plurality of spaced apertures extending through opposing planar surfaces to receive nails or screws to be removably secured to the concrete form board, and with the tab portion extending outwardly of the cylindrical portion a distance to allow manual grasping thereof in freeing the steel bar from the ground. In a preferred embodiment of the invention, the steel bar consists of a rebar having a plurality of rims circumscribing its outer surface, in cooperating with the cylindrical portion of the clip in limiting spinning, or otherwise movement of the clip once forced upon the rebar for use, especially when the clip is constructed of a deformable plastic.
    Type: Grant
    Filed: February 8, 2000
    Date of Patent: November 6, 2001
    Inventor: Theodore Mechnick
  • 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: 6161360
    Abstract: An apparatus for supporting reinforcement bar comprises a support assembly including a first support and a second support. The first support has a ground-engaging portion. The second support is coupled to the first support so that the ground-engaging portion provides subjacent support for the second support. The second support is structured and dimensioned to support a reinforcement bar in a substantially upright position. A support member is coupled to the support assembly. The support member is provided for vertically supporting another reinforcement bar. A method for supporting reinforcement bar comprises the steps of providing a ditch having a bottom surface and apparatus for supporting reinforcement bar. The method next comprises the step of positioning apparatus for supporting reinforcement bar in the ditch with an end of apparatus protruding from the ditch and a ground-penetrating portion driven in the bottom surface of the ditch.
    Type: Grant
    Filed: May 20, 1999
    Date of Patent: December 19, 2000
    Inventor: Earl D. Smith
  • Patent number: 6123745
    Abstract: An adjustable concrete form comprises at least one tube and an adjustable stake having a post and a tube cradle. A bracket is removably connected to the tube for supporting rebar in spaced-apart relation to the excavation bottom. The bracket includes a tube engaging portion and a rebar supporting portion. The tube engaging portion is configured for connecting the bracket to the tube. The rebar supporting portion extends laterally from a proximal end connected to the tube engaging portion to a distal end spaced from the tube engaging portion.
    Type: Grant
    Filed: October 2, 1998
    Date of Patent: September 26, 2000
    Assignee: Hess Bros, L.L.C.
    Inventors: John Hess, III, Harold Hess
  • Patent number: 6076780
    Abstract: A support stand for pipe, conduit, cable or the like which must be held above the surface of a roof. The stand is essentially triangular with the base of the stand forming one side and two legs, joined at their upper ends, forming the other two sides. A strap is fixed at one end to the face of one of the legs and extends upward, over the top of the stand and down the other side. There, it passes around the pipe, etc., to be supported, which rests against the face of the second leg, and then back over the top of the stand and downward past the first end. The free end passes through a tab bridge formed in, or attached to, the first leg. The height at which the pipe is supported is adjusted by altering the length of the free end which passes through the tab bridge. When the height is correct, the strap is folded back over the tab bridge to lock it in position. Preferably, the entire stand, including the strap, is made from sheet metal and the legs are of unequal length.
    Type: Grant
    Filed: April 28, 1998
    Date of Patent: June 20, 2000
    Inventors: Von Honnecke, Jerry R. Bartling
  • Patent number: 5981050
    Abstract: A multiple ply composite structure used to reinforce, seal and shape concrete structures has a first ply formed of unidirected continuous filament reinforcements which are bonded together by a thermosetting polymeric resin matrix. A second ply comprises a plurality of separately spaced protuberances, each of which is individually coated with a hardenable thermosetting polymeric resin. The hardenable thermosetting polymeric resin of the second ply bonds the first ply to the second ply by forming a concave resin meniscus which anchors each of the protuberances of the second ply to the first ply.
    Type: Grant
    Filed: March 4, 1998
    Date of Patent: November 9, 1999
    Inventors: Charles E. Kaempen, Charles Robert Kaempen
  • Patent number: 5884439
    Abstract: An adjustable concrete form comprises at least one tube and an adjustable stake having a post and a tube cradle. The tube has at least one drainage aperture providing the form with drainage. The adjustable stake is configured for adjustably supporting the tube in spaced-apart relation to an excavation bottom. The post has at least one slender end to facilitate driving the post partially into the excavation bottom. The tube cradle is configured for releasable engagement with the tube to thereby secure the tube relative to the post and to support the tube in spaced-apart relation to the excavation bottom. The tube cradle is adjustably connected to the post so that adjustment of the post relative to the cradle effectuates adjustment of the tube relative to the excavation bottom.
    Type: Grant
    Filed: May 29, 1997
    Date of Patent: March 23, 1999
    Assignee: Hess Bros., L.L.C.
    Inventors: John Hess, III, Harold Hess
  • 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: 5595039
    Abstract: A chair for supporting, positioning and retaining a concrete reinforcing bar in place at predetermined height in the pouring and construction of concrete slabs or beams at a jobsite wherein the concrete reinforcing bar remains as an integral, strengthening element of the construction. The chair includes a cap with a recessed or slotted upper face for retaining and supporting the concrete reinforcing bar, and a base; the cap (which supports the concrete reinforcing bar) being supported above the base via a stem. Caps and bases of standard size can be supplied to a jobsite, and chairs of varying height readily constructed therefrom at the jobsite by cutting stems of desired length from a concrete reinforcing rod, based on the requirements of slab thickness, or beam depth.
    Type: Grant
    Filed: December 18, 1995
    Date of Patent: January 21, 1997
    Inventor: John L. Lowery
  • Patent number: 5419055
    Abstract: Construction apparatus used for positioning column base brackets, for positioning hold down plates used to position anchor bolts for steel beams, for constructing brick or block walls and columns, and for positioning concrete forms.
    Type: Grant
    Filed: October 28, 1993
    Date of Patent: May 30, 1995
    Inventor: Dexter L. Meadows
  • Patent number: 5408799
    Abstract: A supporting member for supporting steel reinforcing bars before casting concrete thereover when making steel-reinforced concrete panels includes an elongated strip of sheet material folded into a U-shape to include a pair of substantially parallel legs at one side of the supporting member joined together by a bent integral juncture at the opposite side of the supporting member. The bent integral juncture is formed with a plurality of axially-spaced slots extending into the legs but terminating short of their bottom edges for receiving and supporting the bars transversely across the legs. Also described are a method of making such a supporting member, and a steel-reinforcement concrete panel including a plurality of such supporting members.
    Type: Grant
    Filed: December 8, 1993
    Date of Patent: April 25, 1995
    Inventors: Eli Ron, Rina Yam
  • Patent number: 5400562
    Abstract: A spacer for a reinforcement bar to be embedded in concrete has a band-like member adapted to wrap around and encircle the reinforcement bar and formed at its ends with a pair of screw parts with external formations which form a screwthread when the two parts are brought together to cause the band to encircle the reinforcing bar and a base with a correspondingly threaded bore at one end is threaded onto the resulting screw to cause the clamping member to seize the reinforcing bar and mount the base on the reinforcing bar.
    Type: Grant
    Filed: September 21, 1993
    Date of Patent: March 28, 1995
    Inventor: Richard Bahr
  • Patent number: 5323582
    Abstract: An apparatus for supporting concrete reinforcement bar within a form. The apparatus comprises a plurality of legs so formed that, when the apparatus is placed in any random orientation on a surface of the form, the ends of at least three legs contact the surface of the form and at least two legs extend upwardly to receive the reinforcement bar. Preferably, any given leg is adjacent to four legs and is non-adjacent to one leg, where the angle between the given leg and any adjacent leg is 90.degree. and the angle between the given leg and any non-adjacent leg is 180.degree..
    Type: Grant
    Filed: December 19, 1991
    Date of Patent: June 28, 1994
    Inventor: Paul B, Watson
  • Patent number: 5301485
    Abstract: A screed post assembly which may be easily and quickly interfaced to a Nelson stud extending upwardly from a horizontal support beam used in the construction of a building framework. The screed post serves as a support for a screed support system which is used to conduct a leveling operation for a concrete pour during the formation of a composite deck. The screed post assembly is also adapted to be extendable over a rebar member and used in the assembly of a protection device which covers the top, exposed ends of a plurality of linearly aligned, upwardly extending rebar members.
    Type: Grant
    Filed: January 27, 1992
    Date of Patent: April 12, 1994
    Inventors: Lee A. Shaw, Ronald D. Shaw, Thomas W. Ennis, Scott G. Shaw, Leory E. Shaw
  • Patent number: 5212920
    Abstract: A fastener system for temporarily securing a reinforcing beam or the like to a poured concrete structural member includes an anchor to be set in poured concrete with an exposed handle portion free of said concrete, and a shaft with a slotted end for receiving the handle portion. A spring loaded pin in the slot retains the handle portion in interlocking engagement with the shaft. An opposite end of the shaft secures a strongback beam to the concrete structure.
    Type: Grant
    Filed: March 19, 1991
    Date of Patent: May 25, 1993
    Assignee: Richmond Screw Anchor Company, Inc.
    Inventor: Dennis W. Tye
  • Patent number: 5058348
    Abstract: The invention relates to a method for forming a screed guide for a vibrating screed or the like in connection with the casting and direct smoothing of especially single-course structural floors and at the locations where the walls of the next story are to be cast.
    Type: Grant
    Filed: November 21, 1989
    Date of Patent: October 22, 1991
    Inventor: Pell Sune Westhed
  • Patent number: 5014485
    Abstract: A chair used for supporting concrete reinforcement rods provides different supporting levels by a change in position thereof, and includes top and bottom planar transverse frame members spaced by two pairs of connecting rods, a pair of first leg members extending from the top frame member, and a pair of second leg members extending from the bottom frame member. Reinforcement transverse members are provided between leg members and connecting rods and are connected to the top and bottom frame members, respectively, thereby improving the strength of the chair.
    Type: Grant
    Filed: April 6, 1990
    Date of Patent: May 14, 1991
    Inventor: Jyh-Chin Chang
  • Patent number: 4928472
    Abstract: A chair for concrete reinforcing rods includes a body having an intermediate portion which includes two spaced apart substantially rectangular planar transverse frame members interconnected by at least one pairs of substantially parallel first connecting members. Four parallel legs extend outwardly from each transverse frame adjacent to four corners of the frame. The legs from one of the frames are aligned with the legs from the other frame so that the legs lie in two pairs of parallel plane. The frame, legs, and the connecting members confine a plurality of channel-like support seats of different diemensions for locating reinforcement rods at different heights and spacings.
    Type: Grant
    Filed: April 24, 1989
    Date of Patent: May 29, 1990
    Inventor: Jyh-Chin Chang
  • 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: 4800702
    Abstract: A steel placement member adapted for supporting and locating a reinforcing steel bar in a concrete structural member formed by placing concrete in an area defined by a horizontal bottom surface and a vertical perimetrical surface. The steel placement member is defined by a tubular body having a channel formed in one end for receiving the end of a reinforcing bar. The opposite end of the tubular body is provided with a plate member lying perpendicular thereto and being adapted to abut the vertical perimetrical surface. According to a preferred embodiment of the invention, the plate member is provided with a vertically depending arrow member which is adapted to rest against the horizontal bottom surface. The steel placement member, with the plate member abutting the vertical surface and the arrow member resting against the bottom surface, supports the reinforcing bar within the channel and locates the reinforcing bar a desired distance inside the vertical surface and above the bottom surface.
    Type: Grant
    Filed: February 24, 1987
    Date of Patent: January 31, 1989
    Inventor: Charles F. Wheeler
  • Patent number: 4765106
    Abstract: There is provided a conscreed bracket which comprises a bracket member, a conduit for receiving a rail to be retained in said conduit secured to said bracket, thread means to be receive a threaded bolt secured to said bracket on opposed sides of the conduit, and bolt means threaded into thread means to enable raising or lowering of the conduit relative to a substrate.
    Type: Grant
    Filed: April 25, 1985
    Date of Patent: August 23, 1988
    Inventor: Nandor I. Modrovich
  • Patent number: 4644727
    Abstract: The chairs include a lower chair portion for supporting multiple prestressing cables at the bottom of a plank and a narrow upper chair portion for supporting an upper prestressing cable located in the web between the hollow cores of the prestressed plank. The upper chair portion can be inserted into the strand receiving cups of the lower portion to form a structurally sound support for accurately placing the top and bottom reinforcing strands in the plank as it is cast.
    Type: Grant
    Filed: February 4, 1986
    Date of Patent: February 24, 1987
    Assignee: Fabcon, Inc.
    Inventors: David W. Hanson, Richard R. Koehn, Richard C. Nash, Lonnie G. Fox
  • Patent number: 4601447
    Abstract: A system for anchoring the conduit spacers of a utility duct bank in a fixed position within a trench during encasement or burial of the duct bank. The conduit spacers comprise components having mating bosses by means of which they can be horizontally and vertically interlocked. A holder interfits with the horizontal or side attachment bosses and includes a vertical guide opening for receiving a length of steel reinforcing bar or other elongated member. The length of reinforcing bar is inserted through at least one, and preferably two or more aligned and driven into the earth forming the floor of the trench, and the top portion of the bar is secured as by being bent over the upper holder to prevent the duct bank from shifting or floating upwardly as when concrete is poured around it. The shape of the holders is such that a tapered notch is created between the conduit spacer and holder fitted thereto for receiving a horizontally extending reinforcing rod to provide added strength to the duct bank.
    Type: Grant
    Filed: October 29, 1984
    Date of Patent: July 22, 1986
    Assignee: LOF Plastics Inc.
    Inventor: James H. McFarland