US20070186492A1 - Lifting fixture for concrete structures - Google Patents

Lifting fixture for concrete structures Download PDF

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Publication number
US20070186492A1
US20070186492A1 US11/276,124 US27612406A US2007186492A1 US 20070186492 A1 US20070186492 A1 US 20070186492A1 US 27612406 A US27612406 A US 27612406A US 2007186492 A1 US2007186492 A1 US 2007186492A1
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United States
Prior art keywords
anchor
concrete structure
clip member
lifting fixture
lifting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US11/276,124
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English (en)
Inventor
Clifford Bennett
Kenneth Lee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dayton Superior Corp
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Dayton Superior Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dayton Superior Corp filed Critical Dayton Superior Corp
Priority to US11/276,124 priority Critical patent/US20070186492A1/en
Assigned to DAYTON SUPERIOR CORPORATION reassignment DAYTON SUPERIOR CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BENNETT, CLIFFORD D., LEE, KENNETH
Assigned to DAYTON SUPERIOR DELAWARE CORPORATION (D/B/A DAYTON SUPERIOR CORPORATION) reassignment DAYTON SUPERIOR DELAWARE CORPORATION (D/B/A DAYTON SUPERIOR CORPORATION) MERGER (SEE DOCUMENT FOR DETAILS). Assignors: DAYTON SUPERIOR CORPORATION
Priority to PCT/US2007/061422 priority patent/WO2007095422A2/fr
Assigned to GENERAL ELECTRIC CAPITAL CORPORATION reassignment GENERAL ELECTRIC CAPITAL CORPORATION SECURITY AGREEMENT Assignors: DAYTON SUPERIOR CORPORATION (A DELAWARE CORPORATION)
Publication of US20070186492A1 publication Critical patent/US20070186492A1/en
Assigned to GENERAL ELECTRIC CAPITAL CORPORATION, AS ADMINISTRATIVE AGENT AND COLLATERAL AGENT reassignment GENERAL ELECTRIC CAPITAL CORPORATION, AS ADMINISTRATIVE AGENT AND COLLATERAL AGENT SECURITY INTEREST PURSUANT TO THE TERM LOAN CREDIT AGREEMENT Assignors: DAYTON SUPERIOR CORPORATION
Assigned to GENERAL ELECTRIC CAPITAL CORPORATION, AS ADMINISTRATIVE AGENT reassignment GENERAL ELECTRIC CAPITAL CORPORATION, AS ADMINISTRATIVE AGENT SECURITY INTEREST PURSUANT TO THE REVOLVING CREDIT AGREEMENT Assignors: DAYTON SUPERIOR CORPORATION
Assigned to DAYTON SUPERIOR CORPORATION reassignment DAYTON SUPERIOR CORPORATION RELEASE OF SECURITY INTEREST RECORDED AT REEL 020593 FRAME 0629 Assignors: GENERAL ELECTRIC CAPITAL CORPORATION
Assigned to DAYTON SUPERIOR CORPORATION reassignment DAYTON SUPERIOR CORPORATION RELEASE OF SECURITY INTEREST RECORDED AT REEL 020593, FRAME 0617 AND REEL 022354, FRAME 0313 Assignors: GENERAL ELECTRIC CAPITAL CORPORATION
Abandoned legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14—Conveying or assembling building elements
    • E04G21/142—Means in or on the elements for connecting same to handling apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/005—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects with anchoring or fastening elements for the shaped articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
    • B66C1/66—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
    • B66C1/666—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof for connection to anchor inserts embedded in concrete structures
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
    • E04G15/04—Cores for anchor holes or the like around anchors embedded in the concrete

Definitions

  • the present invention relates generally to a lifting fixture for concrete structures, and more particularly to an anchor secured to reinforcing wires embedded within a concrete structure.
  • Concrete structures are used extensively in the construction industry. For example, concrete pipes are commonly installed underground and used to transport liquid and waste materials. Because of their durability and strength, concrete pipes typically require minimal upkeep and retain their serviceability for many years. Such pipes are also very versatile in the sense that they can be easily and economically formed with the necessary shape, size, and strength to suit a particular application.
  • Dry casting typically involves supplying a dry cast concrete mix, or “no-slump” mix, to a mold having an annular cavity between an inner form and outer form.
  • the mix is densely compacted within the mold using specialized consolidation techniques, such as spinning, vibration, packing and/or “slinging” the concrete mix into the mold.
  • the mold may be immediately removed and used to create another structure.
  • Wet casting typically involves supplying a relatively wet concrete mix to the annular cavity of a mold. The concrete mix is cured within the cavity before the mold is removed.
  • reinforcing wires or bars are typically placed in the annular cavity of the mold prior to supplying the concrete mix so that the wires ultimately become embedded within the final concrete structure.
  • a hole may be cast in the concrete for receiving a conventional lifting hook.
  • holes may be formed through the concrete after casting. While the holes may facilitate lifting, they must be patched once the pipes are installed in order to meet hydrostatic testing requirements. If a hole is not patched correctly, the patch may fail and may even fall out after the pipe has been installed. This is particularly problematic for pipes installed underground where soil and other materials may enter the pipe through a failed patch. This displacement of soil often creates a sinkhole at the grade level, which can become especially undesirable if the pipe is installed beneath a roadway or the like.
  • the anchor placement channel is shaped to cooperate with the anchor so as to prevent the anchor from moving relative to the insert when concrete is supplied to the mold.
  • the present invention provides a lifting fixture for concrete structures having reinforcing wires embedded therein.
  • the lifting fixture generally comprises an anchor having a first end adapted to be operatively coupled to the lifting hardware of a hoist and a second end configured to be securely embedded within the concrete structure.
  • At least one clip member is coupled to the anchor for securing the lifting fixture to the reinforcing wires.
  • the clip member also positions the first end of the anchor relative to a recess to be formed in the outer surface of the concrete structure, thereby providing easy access to the anchor.
  • the lifting fixture may further comprise a cover member, or “void former,” for forming the recess in the outer surface.
  • the cover member is adapted to cover at least a portion of the first end of the anchor when secured thereto, and may be removed from the first end after the concrete structure has been formed. Removing the cover thus exposes the recess with the first end of the anchor positioned therein.
  • each clip member comprises a body, a first clasp positioned on the body and sized to operatively engage a first reinforcing wire, and a second clasp positioned on the body and sized to operatively engage a second reinforcing wire.
  • the second clasp is spaced apart from said first clap by a distance corresponding to the spacing of the reinforcing wires.
  • FIG. 1 is a perspective view of a concrete structure with an exemplary lifting fixture according to an embodiment of the invention
  • FIG. 2 is a perspective view similar to FIG. 1 , showing the lifting fixture secured to the reinforcing wires embedded within the concrete structure;
  • FIG. 3 is an enlarged perspective view of the lifting fixture shown in FIG. 2 ;
  • FIG. 4 is an exploded side elevation view showing the lifting fixture of FIG. 2 and a removable cover according an embodiment of the invention
  • FIG. 5 is a side elevation view similar to FIG. 4 showing the removable cover secured to a portion of the lifting fixture;
  • FIG. 6 is a side elevation view showing the lifting fixture of FIG. 2 and the lifting hardware of a hoist;
  • FIG. 7 is a cross-sectional view taken along line 7 - 7 in FIG. 6 ;
  • FIG. 8 is an exploded perspective view of a lifting fixture according to a second embodiment of the invention.
  • FIG. 9 is a perspective view depicting the lifting fixture of FIG. 8 secured to concrete reinforcing wires
  • FIG. 10 is a perspective view of a clip member of the lifting fixture shown in FIG. 8 ;
  • FIG. 11 is a perspective view of another embodiment of a lifting fixture in accordance with the principles of the present invention.
  • FIG. 12 is a side elevation view, similar to FIG. 4 , depicting the lifting fixture of FIG. 11 .
  • a lifting fixture 10 according to an exemplary embodiment of the invention is shown embedded within a concrete structure 12 in the form of a pipe.
  • the lifting fixture 10 is used to facilitate lifting and transporting the concrete structure 12 between job sites and other locations, as will be described in greater detail below.
  • the concrete structure 12 is shown as a concrete pipe, those skilled in the art will appreciate that the lifting fixture 10 may be used to facilitate lifting concrete structures having other shapes and configurations.
  • the concrete structure 12 may alternatively be a concrete slab, block, wall, or any other structure commonly used in the construction industry.
  • the lifting fixture 10 is generally positioned in a recess 14 formed in an outer surface 16 of the concrete structure 12 . More specifically, the lifting fixture 10 includes an anchor 20 having a first end 22 extending into the recess 14 , and a second end 24 securely embedded within the concrete structure 12 . At least one clip member 30 is coupled to the anchor 20 to secure the lifting fixture 10 to reinforcing wires 32 that are also embedded within the concrete structure 12 , as best seen in FIG. 2 .
  • FIG. 3 illustrates the lifting fixture 10 and reinforcing wires 32 of FIG. 2 in further detail.
  • the anchor 20 is formed from steel or iron and is bent to have an apex 40 at the first end 22 and first and second legs 42 , 44 extending downwardly on opposing sides of the apex 40 .
  • the anchor 20 generally has an inverted V or U-shaped configuration.
  • the first and second legs 42 , 44 terminate in respective flanges 46 , 48 at the second end 24 for reasons discussed more fully below.
  • Each clip member 30 generally comprises a body 54 , a first clasp 56 positioned on the body 54 and sized to operatively engage a first reinforcing wire 32 a , and a second clasp 58 positioned on the body 54 and sized to operatively engage a second reinforcing wire 32 b .
  • the first and second clasps 56 , 58 are spaced apart from each other by a distance corresponding to the spacing of the first and second reinforcing wires 32 a , 32 b .
  • each clip member 30 is constructed from a metal rod that has been bent into the appropriate shape to form the body 54 , first clasp 56 , and second clasp 58 .
  • the body 54 may be welded to the anchor 20 and the first and second clasps 56 , 58 resemble hooks that are configured to wrap around respective portions of the first and second reinforcing wires 32 a , 32 b .
  • the second clasp 58 includes a guide portion 60 that facilitates securely engaging the second clasp 58 to the second reinforcing wire 32 b by providing a small amount of interference between the parts in an installed position.
  • guide portion 60 comprises a length of rod that is bent downwardly and outwardly relative to the body 54 .
  • the lifting fixture 10 may be secured to the reinforcing wires 32 by “hooking” the first clasp 56 onto the first reinforcing wire 32 a , and then applying a sufficient force to overcome the interference of the guide portion 60 and “snap-fit” the second clasp 58 onto the second reinforcing wire 32 b.
  • the simple and economical configuration of the exemplary fixture 10 makes it feasible to produce the lifting fixture 10 according to a concrete manufacturer's specifications.
  • concrete pipes are typically produced with a particular diameter and wall thickness.
  • the shape and size of the anchor 20 may generally be determined from this information.
  • the clip members 30 are designed with reference to the gage and spacing of the reinforcing wires 32 , 32 a , 32 b .
  • Wire sizes in large concrete pipes typically vary from 10 gage (0.135 inch diameter) to 2 gage (0.331 inch diameter), and spacing arrangements between intersecting wires typically range from 2 inch ⁇ 2 inch to 3 inch ⁇ 8 inch.
  • the lifting fixture 10 may further include a cover member or void former 70 adapted to be releasably secured to the first end 22 of the anchor 20 .
  • the cover member 70 generally has an outer surface 72 shaped to cooperate with the outer form of a mold (not shown) in which the concrete structure 12 is formed, and a body structure 74 adapted to cover at least a portion of the first end 22 of anchor 20 when the cover 70 is secured thereto.
  • the overall shape of the body structure 74 generally corresponds to the shape of the recess 14 to be formed in the concrete structure 12 .
  • the body structure 74 is provided with a semi-spherical shape, etc.
  • the cover member 70 is preferably a unitary component molded from an elastomeric material.
  • the cover member 70 generally has a dome-shaped configuration.
  • a slot 80 extends down the center of the dome such that the cover member 70 is divided into first and second halves 82 , 84 .
  • Each half includes a groove 86 facing the slot 80 , and each groove 86 is shaped to receive the first end 22 of the anchor 20 .
  • the first and second halves 82 , 84 may be pulled apart from each other to open the slot 80 .
  • the first and second halves 82 , 84 may be moved back towards each other to close the slot 80 .
  • the concrete structure 12 is formed in a mold, which is not shown in the figures for the sake of clarity.
  • the mold for a concrete pipe typically includes an inner form and outer form.
  • one or more anchors 20 may be secured to the reinforcing wires 32 , 32 a , 32 b using the clip members 30 .
  • the removable cover 70 is then positioned over the first end 22 of the anchor 20 in the manner described above, with the outer surface 72 of the cover member 70 generally bearing against the outer form of the mold.
  • cover member 70 may be secured to the first end 22 of anchor 20 and the anchor secured to the reinforcing wires 32 , 32 a , 32 b prior to positioning the wires in the mold.
  • the lifting fixture 10 may be supplied to the mold to form the concrete structure 12 . Even if a no-slump concrete mix is slung into the mold in a dry-cast operation, or even if a heavier concrete mix is supplied to the mold for the purposes of a wet-cast operation, the secure attachment between the clip members 30 and the reinforcing wires 32 helps ensure that the anchor 20 remains in the desired position. Thus, the lifting fixture 10 may be advantageously used for both wet-cast and dry-cast operations.
  • Concrete mix is added until it fills the mold and surrounds any portion of the lifting fixture 10 that is not covered by the cover member 70 .
  • the second end 24 of the anchor 20 and the first and second clasps 56 , 58 of the clip members 30 become embedded in the concrete structure 12 along with the reinforcing wires 32 .
  • the formed concrete structure 12 is separated from the mold and the cover member 70 is removed from the anchor 20 .
  • the removal of the cover member 70 exposes the recess 14 .
  • the first end 22 of the anchor 20 extends into the recess 14 and is adapted to be operatively coupled to the lifting hardware of a hoist.
  • the recess 14 may provide sufficient space for a lifting hook 90 to engage the apex 40 of the anchor 20 between the first and second legs 42 , 44 .
  • the first end 22 of the anchor 20 is shown has having an arch-shaped configuration within the recess 14 , those skilled in the art will appreciate that the anchor 20 may be any other shape designed to couple to lifting hardware.
  • the first end 22 of the anchor 20 may alternatively be in the form of an eyebolt designed to engage the hook 90 , or an anchor bolt designed to engage a clamp or retainer.
  • the hook 90 may be used to engage the first end 22 of the anchor 20 and apply a sufficient force to lift the concrete structure 12 .
  • the rigidity and strength of the concrete ensures that the second end 24 of the anchor 20 remains embedded therein so that the concrete structure 12 moves with the anchor 20 .
  • the first and second flanges 46 , 48 further extend within the concrete structure 12 to provide additional resistance to the lifting force and thus assist retaining the second end 24 within the concrete structure 12 .
  • the first end 22 of the anchor 20 must have sufficient strength to support the weight of the concrete structure 1 2 .
  • the first end 22 must not break or substantially deform when the lifting force is applied thereto.
  • the anchor is formed from low carbon steel.
  • the hook 90 may simply be disengaged from the first end 22 . There is no need to complete a subsequent patching operation because the recess 14 does not extend through the concrete structure 12 . If desired, however, mortar may be packed into the recess 14 to provide a clean appearance and give the pipe a uniform thickness.
  • FIGS. 8-10 depict another exemplary lifting fixture 110 in accordance with the invention.
  • the lifting fixture 110 generally comprises an anchor 120 and at least one clip member 130 coupled to the anchor 120 for securing the lifting fixture 110 to reinforcing wires 132 , 132 a , 132 b .
  • the anchor 120 has substantially the same shape and configuration as the anchor 20 with the exception that the ends 124 of its legs 142 , 144 include Hex-shaped heads.
  • the foregoing description of anchor 20 is applicable to anchor 120 .
  • the clip members 130 differ in several respects from the clip members 30 .
  • the clip members 130 are formed from stamped metal.
  • Each clip member 130 still comprises a body 154 , a first clasp 156 adapted to operatively engage a first reinforcing wire 132 a , and a second clasp 158 adapted to operatively engage a second reinforcing wire 132 b .
  • the first and second clasps 156 , 158 comprise elongated slots defined by opposing, spaced surfaces and are adapted to accommodate a wide variety of reinforcing wire spacing arrangements.
  • the second clasp 158 includes a first portion 162 angled downwardly from the body 154 and a second portion 164 that is spaced apart from the body 154 .
  • the second reinforcing wire 132 b may be securely received anywhere between the body 154 and the first or second portions 162 , 164 .
  • the clip members 130 are also adapted to accommodate a wide variety of wire sizes. More specifically, the first clasp 156 includes threaded aperture 166 adapted to receive a fastener 168 , such as a screw or bolt. When the first reinforcing wire 132 a is received in the first clasp 156 , the fastener 168 is tightened to secure the reinforcing wire 132 a within the clasp 156 . Thus, even if a reinforcing wire is too small to frictionally engage the first clasp 156 , the wire may be secured therein by the fastener 168 .
  • a fastener 168 such as a screw or bolt
  • each clip member 130 is removably and adjustably secured thereto.
  • each clip member 130 further includes a receiving member 174 positioned on the body 154 and adapted to receive a portion of the anchor 120 .
  • the receiving member 174 resembles a slot defined by opposing, spaced surfaces and includes a threaded aperture 176 for receiving a fastener 178 .
  • the fastener 178 may be tightened to secure the clip member 130 to the anchor 120 .
  • each clip member 130 may be adjusted for different wall thicknesses of the concrete structure to ensure that the first end 122 of the anchor 120 is positioned at a desired location within the recess to be formed in the outer surface of the concrete structure.
  • the receiving member 174 of each clip member 130 may further include an offset portion 184 ( FIG. 10 ) to increase the overall length of the lifting fixture 110 .
  • the anchors and clip members have been shown in configurations wherein the legs 42 , 44 , 142 , 144 of the anchors 20 , 120 extend generally through a plane that includes the reinforcing wires 32 , 32 a , 32 b .
  • Such configurations are typical when the reinforcing wires 32 , 32 a 32 b are substantially centered within the thickness of the concrete section 12 .
  • the reinforcement wires 32 , 32 a , 32 b may be arranged so that they lie relatively deep within the thickness of the concrete section 12 , such that the reinforcement wires 32 , 32 a , 32 b are closer to an inner surface of the concrete structure 12 compared to the distance of the wires 32 , 32 a , 32 b from a surface where the anchor will be positioned.
  • first and second clip members 202 are configured to support an anchor 110 such that the anchor 110 is spaced sufficiently above the reinforcing wires 32 , 32 a , 32 b and are suitable for configurations where the reinforcing wires 32 , 32 a , 32 b are deeply embedded within the concrete section 12 .
  • the first and second clip members 202 are mirror images of one another. While two clip members 202 are depicted supporting anchor member 120 , it will be recognized that only one clip member 202 may be needed in some applications.
  • each of the first and second clip members 202 is constructed from a metal rod that has been bent to form a generally U-shaped body portion 204 .
  • the body portion comprises a generally closed end 206 and first and second legs 208 , 210 extending from the closed end 206 .
  • First and second clasps 212 , 214 are formed on the first leg 208 by bending the rod material.
  • the first clasp 212 comprises a first bend radius 216 sized to correspond to the general size of the reinforcing wire 32 a , whereby the reinforcing wire 32 a may be received within the first bend radius 216 .
  • a third leg 218 of the clip 202 extends in a direction back toward the closed end 206 of the body 204 .
  • a portion of the rod material at the first clasp 212 may be offset, such as by a second bend radius 220 , such that the reinforcing wire 32 a must be snapped into place through the offset portion.
  • the second clasp 214 of the clip member 202 is defined by the first and third legs 208 , 218 of the body portion 204 .
  • the first and third legs 208 , 218 are generally parallel and are spaced from one another a distance such that a reinforcing wire 32 b will be clamped therebetween.
  • the distal end 222 of the third leg 218 is angled in a direction generally upwardly and outwardly relative to the body portion 204 , and also in a direction toward the first clasp 212 .
  • This angled arrangement helps to facilitate separation of the first and third legs 208 , 218 when the clip member is forced into engagement with reinforcing wires 32 a , 32 b such that the reinforcing wires 32 a , 32 b may be admitted between the first and third legs 208 , 218 , whereafter the angled end 222 inhibits subsequent removal of the clip member 202 from the reinforcing wire 32 a , 32 b.
  • a fourth leg 230 of the clip member 202 is spaced from the closed end 206 of the body 204 and extends upwardly from the second leg 210 .
  • An arm 232 extends from the fourth leg 230 in a direction substantially parallel to the second leg 210 and has a bent distal end 234 with a bend radius sized to receive one of the legs of the anchor member 120 .
  • first and second clip members 202 are able to support the anchor member 120 such that it is spaced from the plane of the reinforcing wires 32 , 32 a , 32 b , as best depicted in FIG. 12 .
  • a cover member 70 may be secured to the apex of the anchor member 120 , in a manner similar to that described above with respect to FIGS. 4 and 5 .

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
US11/276,124 2006-02-15 2006-02-15 Lifting fixture for concrete structures Abandoned US20070186492A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US11/276,124 US20070186492A1 (en) 2006-02-15 2006-02-15 Lifting fixture for concrete structures
PCT/US2007/061422 WO2007095422A2 (fr) 2006-02-15 2007-02-01 Appareil de levage pour structures en beton

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US11/276,124 US20070186492A1 (en) 2006-02-15 2006-02-15 Lifting fixture for concrete structures

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090183441A1 (en) * 2007-02-21 2009-07-23 Michael Azarin Anchor Recess Former
EP2169144A1 (fr) * 2008-09-25 2010-03-31 HALFEN GmbH Ancrage pour transporter des produits finis en béton et procédé de fabrication d'un tel ancrage de transport
US20100258980A1 (en) * 2009-04-09 2010-10-14 Fore Iii Pat Halton Systems and Methods of Concrete Apparatus with Incorporated Lifter
US20120204499A1 (en) * 2011-02-15 2012-08-16 Randel Brandstrom Concrete Panel with Fiber Reinforced Rebar
US20120304554A1 (en) * 2008-12-02 2012-12-06 Casne Verige Pty Ltd Collar for a concrete lifting anchor
US20130247497A1 (en) * 2010-09-15 2013-09-26 Mcmaster University Self-reinforced masonry blocks, walls made from self-reinforced masonry blocks, and method for making self-reinforced masonry blocks
WO2017011861A1 (fr) * 2015-07-17 2017-01-26 Csr Building Products Limited Procédé de fabrication d'un panneau de construction comportant une pièce rapportée
WO2017011858A1 (fr) * 2015-07-17 2017-01-26 Csr Building Products Limited Panneau de construction comprenant une pièce rapportée
US20200123794A1 (en) * 2018-07-11 2020-04-23 Pf3 Global, Llc Systems and Methods of Concrete Apparatus with Incorporated Lifter
CN114932614A (zh) * 2022-04-15 2022-08-23 上海建工建材科技集团股份有限公司 一种超大型混凝土构件生产吊装用模具及其制作方法
US20220316224A1 (en) * 2009-04-09 2022-10-06 Pf3 Global, Llc Systems and Methods of Concrete Apparatus with Incorporated Lifter
WO2023283679A1 (fr) * 2021-07-14 2023-01-19 Rodney Mackay Sim Ensemble dispositif d'évidement et ancrage

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009000481U1 (de) 2009-01-13 2010-06-02 B.T. Innovation Gmbh Spannschloss für Betonfertigteile

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US3257767A (en) * 1963-08-28 1966-06-28 Raymond R Lassy Snap-on spacer positioner for reinforcement
US3471986A (en) * 1966-10-28 1969-10-14 Richard A Swenson Spacer for reinforcing mesh for concrete pipe and the like
US4053134A (en) * 1974-12-09 1977-10-11 Peacock Bobbie D Pipe mold having insert support means
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US4443980A (en) * 1981-03-19 1984-04-24 Pennsylvania Insert Corporation Pulling iron enclosure
US5242249A (en) * 1991-08-12 1993-09-07 Mmi Products Pre-cast panel lifting insert
US5269113A (en) * 1988-08-27 1993-12-14 Siegfried Dreizler Spacer suited for being embedded in concrete
US5528867A (en) * 1994-05-27 1996-06-25 Thompson; Harry A. Cover member for a protruding rod of an architectural structural member
US6279274B1 (en) * 1998-09-16 2001-08-28 Ramset Fasteners (Aust.) Pty. Ltd. Cast-in fittings for concrete components
US6779312B2 (en) * 2002-07-12 2004-08-24 Reinforced Concrete Pipes Pty Ltd Anchoring device

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US2772560A (en) * 1952-06-28 1956-12-04 Herman P Neptune Pick-up device for pre-cast concrete slabs
US3257767A (en) * 1963-08-28 1966-06-28 Raymond R Lassy Snap-on spacer positioner for reinforcement
US3471986A (en) * 1966-10-28 1969-10-14 Richard A Swenson Spacer for reinforcing mesh for concrete pipe and the like
US4053134A (en) * 1974-12-09 1977-10-11 Peacock Bobbie D Pipe mold having insert support means
US4087947A (en) * 1976-09-15 1978-05-09 Superior Concrete Accessories, Inc. Edge-lifting system for a concrete slab
US4443980A (en) * 1981-03-19 1984-04-24 Pennsylvania Insert Corporation Pulling iron enclosure
US5269113A (en) * 1988-08-27 1993-12-14 Siegfried Dreizler Spacer suited for being embedded in concrete
US5242249A (en) * 1991-08-12 1993-09-07 Mmi Products Pre-cast panel lifting insert
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US20090183441A1 (en) * 2007-02-21 2009-07-23 Michael Azarin Anchor Recess Former
EP2169144A1 (fr) * 2008-09-25 2010-03-31 HALFEN GmbH Ancrage pour transporter des produits finis en béton et procédé de fabrication d'un tel ancrage de transport
US20120304554A1 (en) * 2008-12-02 2012-12-06 Casne Verige Pty Ltd Collar for a concrete lifting anchor
US20150017357A1 (en) * 2009-04-09 2015-01-15 Pat Halton Fore, III Systems and Methods of Concrete Apparatus with Incorporated Lifter
US20100258980A1 (en) * 2009-04-09 2010-10-14 Fore Iii Pat Halton Systems and Methods of Concrete Apparatus with Incorporated Lifter
US20220316224A1 (en) * 2009-04-09 2022-10-06 Pf3 Global, Llc Systems and Methods of Concrete Apparatus with Incorporated Lifter
US9296125B2 (en) 2009-04-09 2016-03-29 Pat Halton Fore, III Systems and methods of concrete apparatus with incorporated lifter
US8852490B2 (en) * 2009-04-09 2014-10-07 Pat Halton Fore, III Systems and methods of concrete apparatus with incorporated lifter
US9175469B2 (en) * 2010-09-15 2015-11-03 Mcmaster University Self-reinforced masonry blocks, walls made from self-reinforced masonry blocks, and method for making self-reinforced masonry blocks
US20130247497A1 (en) * 2010-09-15 2013-09-26 Mcmaster University Self-reinforced masonry blocks, walls made from self-reinforced masonry blocks, and method for making self-reinforced masonry blocks
US8511038B2 (en) * 2011-02-15 2013-08-20 Randel Brandstrom Concrete panel with fiber reinforced rebar
US20120204499A1 (en) * 2011-02-15 2012-08-16 Randel Brandstrom Concrete Panel with Fiber Reinforced Rebar
WO2017011861A1 (fr) * 2015-07-17 2017-01-26 Csr Building Products Limited Procédé de fabrication d'un panneau de construction comportant une pièce rapportée
WO2017011858A1 (fr) * 2015-07-17 2017-01-26 Csr Building Products Limited Panneau de construction comprenant une pièce rapportée
AU2016295418B2 (en) * 2015-07-17 2021-11-18 Csr Building Products Limited Building panel having insert
US20200123794A1 (en) * 2018-07-11 2020-04-23 Pf3 Global, Llc Systems and Methods of Concrete Apparatus with Incorporated Lifter
US11371252B2 (en) * 2018-07-11 2022-06-28 Pf3 Global Llc Systems and methods of concrete apparatus with incorporated lifter
WO2023283679A1 (fr) * 2021-07-14 2023-01-19 Rodney Mackay Sim Ensemble dispositif d'évidement et ancrage
CN114932614A (zh) * 2022-04-15 2022-08-23 上海建工建材科技集团股份有限公司 一种超大型混凝土构件生产吊装用模具及其制作方法

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