US2181740A - Insert for concrete constructions - Google Patents
Insert for concrete constructions Download PDFInfo
- Publication number
- US2181740A US2181740A US224693A US22469338A US2181740A US 2181740 A US2181740 A US 2181740A US 224693 A US224693 A US 224693A US 22469338 A US22469338 A US 22469338A US 2181740 A US2181740 A US 2181740A
- Authority
- US
- United States
- Prior art keywords
- insert
- concrete
- recess
- closure
- 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.)
- Expired - Lifetime
Links
- 238000010276 construction Methods 0.000 title description 10
- 239000000463 material Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 210000005069 ears Anatomy 0.000 description 4
- 238000005266 casting Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000011440 grout Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B1/4107—Longitudinal elements having an open profile, with the opening parallel to the concrete or masonry surface, i.e. anchoring rails
Definitions
- This invention relates to certain new and useful improvements in inserts for use in concrete constructions to serve as anchorages for bolts or similar holding means which support other de- 5 vices or constructions from the concrete beams.
- An insert of this type is usually metallic and is formed with an internal pocket to receive a nut or the head of a bolt, there being a restricted opening leading through the face of the insert through which the shank of the bolt passes.
- the insert is first nailed or otherwise temporarily secured to the inner face of a portion of the wooden mold or form in which the concrete is poured, with the open face of the recess against the wood. After the concrete has set and the wooden form or mold has been removed, the insert will be embedded and anchored within the concrete, with its outer open face substantially flush with the outer wall of the concrete member so that the bolt may be attached.
- inserts are used, for example, in ceilings or overhead beams to support hangers for pipes or other devices, or may be used in vertical walls or beams to support hangers or anchorages for the outer brickwork or sheathing of a building.
- the insert may be in the form'of a unitary casting (as in the forms hereinafter described by way of example), or may be built up of sheet metal.
- the more common method is to fill the channel or pocket with some readily removable material such as paper or felt which may be withdrawn after the concrete pouring operation is completed.
- This method: 5 is not well adapted for inserts of the type herein discussed, since it is difficult to remove this material through the small or restricted opening leading into the much larger internal pocket.
- a gasket or closure of felt or similar compressible material is temporarily glued to the outer face of the insert around and over the open-. 15 mg.
- a shallow recess is formed in the outer face of the insert into which the strip 7 of compressible material is fitted and temporarily secured.
- this closure or compressible material will 20 be compressed between the insert and wooden form so as to form an effective seal which positively prevents the entrance of any liquid or concrete into the insert.
- this 25 felt strip can be easily torn away, leaving the opening and pocket clean and dry. It is also desirable to keep the interior of the insert clean and dry during the handling and shipping prior to the actual installation, and these improved 30 closures are preferably applied at the factory and not removed until the concrete construction process has been completed.
- the principal. object of this invention is to provide an improved insert of the type briefly de-- in the specifications which follow.
- Another object is to provide an improved method of sealing inserts as used in concrete building construction. 4o -Other objects and advantages of this invention will be more apparent from the following detailed description of certain forms of the invention constructed and operating according to the principles of this invention.
- FIG. 1 is a perspective View of one of the complete assemblies as furnished by the factory.
- Fig.2 is a view similar to Fig. 1, with the temporary closure member removed.
- Fig. 3 is a vertical section through the assembly, taken substantially on the line 33 of Fig. 1.
- Fig. 4 is a horizontal section through the insert as applied to the inner face of the wooden mold or form.
- a nut 5 (see Fig. 5) may be inserted through the opening by tipping the nut sidewise, and. when this nut is straightened into position it may be enslot or opening 4 is enlarged as indicated at 8 so as to permit the head of the bolt to be inserted into the pocket, the nut being applied to the threaded outer end of the bolt.
- this bolt can be used for holding or suspending any desired device or construction.
- the member indicated generally at 9, and projecting from the rear of the main body I, serves to anchor the insert within the concrete, and the projecting rear flanges I I] and H serve as additional anchorages.
- ears l2, preferably aligned with the front face [3 of the insert, are provided with holes or open slots M for receiving the nails or screws l5 by which the insert is temporarily attached to the inner surface of the wooden form l6, as indicated in Fig. 4.
- a shallow recess H is formed in the front face of the insert about the slot or open- This recess-will be of suflicient area to provide a considerable bottom surface around opening 4, and this recess will most conveniently be of rectangular contour.
- the temporary closure or gasket I8 is preferably in the form of a sheet or strip of tough but yieldable or compressible liquid-resistant material, for example.
- This closure is preferably of substantially the same outer contour as recess ll so as to fit snugly therein, and will be of substantially greater thickness than the depth of the recess so as to normally project forwardly from the frontface I3 of the recess as indicated at l9 in Figs. 1 and 3.
- Any convenient means may be used for temporarily holding this compressible closure within recess H, but preferably the closure is secured in place by a suitable glue, and the bottom surface of recess I! is preferably roughened as indicated at 283 in Figs. 2 and 3 to provide a surface to which the glue will adhere. The ordiordinarily be adequate for this purpose.
- the closure instead of being in the form of a continuous sheet or strip so as to cover the slot 4, were in the form of a ring or gasket positioned in recess l1 around or about the opening.
- the closure I8 in the form of a continuous sheet or strip so as to close the slot 4 at all times.
- the front faces of the ears l2 are preferably positioned in the same plane as the front face I3 of .the insert so as to prevent any possible tipping of the insert as might occur if these ears were positioned further to the rear and one nail were driven in further than the other.
- the ears l2 are secured substantially flush with the inner surface of the wooden form l6, the closure l8 being compressed almost 7 completely within recess l1.
- the compressible closure member may be applied in substantially the same manner as hereinabove described.
- A' metallic insert adapted to be embedded in formed with an internal pocket and a restricted opening leading from the pocket through the "outer face of the insert, and a closure member of readily compressible W porarily secured to and projecting outwardly sealing material temfrom the outer .face of the insert to cover the opening.
- a metallic insert adapted to be embedded in a concrete construction withits outer face exposed, said :insert serving as an anchorage and I :formed with an internal pocket and a restricted opening leading from the pocket through the outer face of the insert, and a strip of compressie ble felt material glued to and projecting out-' Wardly from the outer face of the insert around the opening,
- the closure or gasket When the insert is installed in the molding lform, as indicated. in Fig. 4, the closure or gasket will be tightly compressed between the insert and the inner surface of the wooden form so as to exposed, said insert serving as an anchorage and pressible felt material glued to and projecting outwardly from the outer face of the insert to cover said opening.
- a metallic insert adapted to be embedded in a concrete construction with its outer face exposed, said insert serving as an anchorage and formed with an internal pocket and a restricted opening leading from the pocket through the outer face of the insert, the outer face of the I insert being formed with a shallow recess of greater area than the opening, a strip of readily yieldable sealing material of substantially the same area and contour as the recess and of greater thickness than the recess, and means for temporarily securing the strip within the recess.
- a metallic insert adapted to be embedded in a concrete construction with its outer face exposed, said insert serving as an anchorage and formed with an internal pocket and a restricted opening leading from the pocket through the outer face of the insert, the outer face of the insert being formed with a shallow recess of greater area than the opening, and a strip of felt of substantially the same area and contour as the recess and of greater thickness than the recess glued within said recess.
Description
Nov. 28, 1939. F. D. REILAND INSERT FOB CONCRETE CONSTRUCTIONS Filed Aug. 15, 1938 5 may be forced into the insert.
Patented Nov. 28, 1939 UNITED STATES assure i s-m oFFicE 5 Claims.
This invention relates to certain new and useful improvements in inserts for use in concrete constructions to serve as anchorages for bolts or similar holding means which support other de- 5 vices or constructions from the concrete beams.
An insert of this type is usually metallic and is formed with an internal pocket to receive a nut or the head of a bolt, there being a restricted opening leading through the face of the insert through which the shank of the bolt passes. The insert is first nailed or otherwise temporarily secured to the inner face of a portion of the wooden mold or form in which the concrete is poured, with the open face of the recess against the wood. After the concrete has set and the wooden form or mold has been removed, the insert will be embedded and anchored within the concrete, with its outer open face substantially flush with the outer wall of the concrete member so that the bolt may be attached. Such inserts are used, for example, in ceilings or overhead beams to support hangers for pipes or other devices, or may be used in vertical walls or beams to support hangers or anchorages for the outer brickwork or sheathing of a building. The insert may be in the form'of a unitary casting (as in the forms hereinafter described by way of example), or may be built up of sheet metal.
The invention hereinafter set forth is applicable to any of these forms of inserts.
Although the open face of the insert is theoretically sealed by the form to which it is secured during the concrete pouring operation, it often happens that due to inequalities or unevenness 1 in the meeting faces of the insert and Wooden form, or to the fact that the insert is not tightly secured against the form, cracks will remain through which liquid material may seep into the opening or pocket in the insert. Also, as the concrete is poured into the form it is usually stirred by mechanical agitators and this often has the effect of loosening the nails by which the insert is temporarily secured to the form and causing gaps through which the wet concrete or grout The grout or wet concrete which finds its way into the open- 'ing and pocket in the insert will more or less fill and clog these openings and is verydifficult to remove, particularly from the internal pocket which is of much greater area than the restricted opening through which the. bolt-shank projects. Many different methods have heretofore'been proposed for preventing this clogging of the openings in this type of insert, or of open channel members which are similarly embedded-in scribed hereinabove and disclosed more in detail con rete constructions. The more common method is to fill the channel or pocket with some readily removable material such as paper or felt which may be withdrawn after the concrete pouring operation is completed. This method: 5 is not well adapted for inserts of the type herein discussed, since it is difficult to remove this material through the small or restricted opening leading into the much larger internal pocket.
Different forms of plugs for th opening have also 10 been proposed.
According to the improvements of the present invention, a gasket or closure of felt or similar compressible material is temporarily glued to the outer face of the insert around and over the open-. 15 mg. Preferably a shallow recess is formed in the outer face of the insert into which the strip 7 of compressible material is fitted and temporarily secured. When the insert is nailed to the wooden form, this closure or compressible material will 20 be compressed between the insert and wooden form so as to form an effective seal which positively prevents the entrance of any liquid or concrete into the insert. After the concrete has set and the wooden form has been removed, this 25 felt strip can be easily torn away, leaving the opening and pocket clean and dry. It is also desirable to keep the interior of the insert clean and dry during the handling and shipping prior to the actual installation, and these improved 30 closures are preferably applied at the factory and not removed until the concrete construction process has been completed.
The principal. object of this invention is to provide an improved insert of the type briefly de-- in the specifications which follow.
Another object is to provide an improved method of sealing inserts as used in concrete building construction. 4o -Other objects and advantages of this invention will be more apparent from the following detailed description of certain forms of the invention constructed and operating according to the principles of this invention.
In the accompanying drawing? Fig. 1 is a perspective View of one of the complete assemblies as furnished by the factory.
Fig.2 is a view similar to Fig. 1, with the temporary closure member removed.
Fig. 3 is a vertical section through the assembly, taken substantially on the line 33 of Fig. 1.
Fig. 4 is a horizontal section through the insert as applied to the inner face of the wooden mold or form.
gaged by the threaded shank B of a bolt 1.
the alternative form. shown in Fig. 6, one end. of
ing 4.
tially closed at the front by the web or front wall 3 provided with the central elongated open: ing 4 of sufficient Width to permit the shank of the bolt or other holding means to pass therethrough. In the form shown in Figs. 1 to 5, a nut 5 (see Fig. 5) may be inserted through the opening by tipping the nut sidewise, and. when this nut is straightened into position it may be enslot or opening 4 is enlarged as indicated at 8 so as to permit the head of the bolt to be inserted into the pocket, the nut being applied to the threaded outer end of the bolt. Obviously this bolt can be used for holding or suspending any desired device or construction.
The member indicated generally at 9, and projecting from the rear of the main body I, serves to anchor the insert within the concrete, and the projecting rear flanges I I] and H serve as additional anchorages. ears l2, preferably aligned with the front face [3 of the insert, are provided with holes or open slots M for receiving the nails or screws l5 by which the insert is temporarily attached to the inner surface of the wooden form l6, as indicated in Fig. 4.
Preferably a shallow recess H is formed in the front face of the insert about the slot or open- This recess-will be of suflicient area to provide a considerable bottom surface around opening 4, and this recess will most conveniently be of rectangular contour. The temporary closure or gasket I8 is preferably in the form of a sheet or strip of tough but yieldable or compressible liquid-resistant material, for example.
jute-felt. This closure is preferably of substantially the same outer contour as recess ll so as to fit snugly therein, and will be of substantially greater thickness than the depth of the recess so as to normally project forwardly from the frontface I3 of the recess as indicated at l9 in Figs. 1 and 3. Any convenient means may be used for temporarily holding this compressible closure within recess H, but preferably the closure is secured in place by a suitable glue, and the bottom surface of recess I! is preferably roughened as indicated at 283 in Figs. 2 and 3 to provide a surface to which the glue will adhere. The ordiordinarily be adequate for this purpose.
the installation of bolt 1 is required. In this way the interior pocket 2 and opening 4 will be kept clean and dry during any handling and shipping operations.
Laterally projecting form an effective seal or gasket between the two members. For this reason many of the advantages of this invention would be obtained if the closure, instead of being in the form of a continuous sheet or strip so as to cover the slot 4, were in the form of a ring or gasket positioned in recess l1 around or about the opening. However, it is preferable to have the closure I8 in the form of a continuous sheet or strip so as to close the slot 4 at all times. It will be noted that the front faces of the ears l2 are preferably positioned in the same plane as the front face I3 of .the insert so as to prevent any possible tipping of the insert as might occur if these ears were positioned further to the rear and one nail were driven in further than the other. It will be noted in Fig. 4 that the ears l2 are secured substantially flush with the inner surface of the wooden form l6, the closure l8 being compressed almost 7 completely within recess l1.
-,,After the concrete 2| (see Fig. 5) has been poured and has set, and the wooden forms have been removed, the closure l8 will again be exdrawn position in Fig. 6. This felt closure can I be easily ripped out by inserting a suitable tool beneath one edge of the closure, or a hole could g be punched into the central portion of the felt member which overlies the opening 4 and then the felt member can be pulled away.
It will be apparent that the metallic fram formed around the closure ill by the sides and end walls of recess I1 serves to protect and enclose the edge portions of the felt closure. This serves to prevent orminimize the chances of the closure being accidentally broken loose or torn built up of sheet metal or other material instead of constructed as unitary castings as in the ex-;..
amples hereinabove described. In any case, the compressible closure member may be applied in substantially the same manner as hereinabove described.
-I claim: 1. A' metallic insert adapted to be embedded in formed with an internal pocket and a restricted opening leading from the pocket through the "outer face of the insert, and a closure member of readily compressible W porarily secured to and projecting outwardly sealing material temfrom the outer .face of the insert to cover the opening.
2. A metallic insert adapted to be embedded in a concrete construction withits outer face exposed, said :insert serving as an anchorage and I :formed with an internal pocket and a restricted opening leading from the pocket through the outer face of the insert, and a strip of compressie ble felt material glued to and projecting out-' Wardly from the outer face of the insert around the opening,
.3. .A metallic insert adapted to be embedded v."in'a concrete'construction with its outer face.
When the insert is installed in the molding lform, as indicated. in Fig. 4, the closure or gasket will be tightly compressed between the insert and the inner surface of the wooden form so as to exposed, said insert serving as an anchorage and pressible felt material glued to and projecting outwardly from the outer face of the insert to cover said opening.
4. A metallic insert adapted to be embedded in a concrete construction with its outer face exposed, said insert serving as an anchorage and formed with an internal pocket and a restricted opening leading from the pocket through the outer face of the insert, the outer face of the I insert being formed with a shallow recess of greater area than the opening, a strip of readily yieldable sealing material of substantially the same area and contour as the recess and of greater thickness than the recess, and means for temporarily securing the strip within the recess.
5. A metallic insert adapted to be embedded in a concrete construction with its outer face exposed, said insert serving as an anchorage and formed with an internal pocket and a restricted opening leading from the pocket through the outer face of the insert, the outer face of the insert being formed with a shallow recess of greater area than the opening, and a strip of felt of substantially the same area and contour as the recess and of greater thickness than the recess glued within said recess.
FRANK D. REILAND.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US224693A US2181740A (en) | 1938-08-13 | 1938-08-13 | Insert for concrete constructions |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US224693A US2181740A (en) | 1938-08-13 | 1938-08-13 | Insert for concrete constructions |
Publications (1)
Publication Number | Publication Date |
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US2181740A true US2181740A (en) | 1939-11-28 |
Family
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Family Applications (1)
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US224693A Expired - Lifetime US2181740A (en) | 1938-08-13 | 1938-08-13 | Insert for concrete constructions |
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Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2758467A (en) * | 1950-08-12 | 1956-08-14 | Philip N Youtz | Building apparatus |
US2794568A (en) * | 1955-11-25 | 1957-06-04 | Alexander H Johnson | Filler for electric outlet boxes |
US2957279A (en) * | 1957-03-18 | 1960-10-25 | Lloyd L Mcnair | Ceiling suspension element |
US3000146A (en) * | 1959-10-19 | 1961-09-19 | Methel A Rogers | Wall anchor |
US3159945A (en) * | 1962-04-23 | 1964-12-08 | Fireproof Products Co Inc | Supporting device to be embedded in concrete structure |
US3319384A (en) * | 1964-09-08 | 1967-05-16 | Edward T Berg | Construction for extruded reglets |
DE1267820B (en) * | 1960-12-05 | 1968-05-09 | Raymond Francois Emile Camus | Large-area building board, in particular wall or ceiling board, made of concrete |
US3524290A (en) * | 1968-06-18 | 1970-08-18 | Standard Products Co | Receiver for spline-type gaskets |
US4130977A (en) * | 1977-01-10 | 1978-12-26 | Versabar Corporation | Concrete insert |
US4167196A (en) * | 1976-12-13 | 1979-09-11 | Acorn Engineering Co. | Vandal-proof plumbing valve access box |
US4601139A (en) * | 1984-04-02 | 1986-07-22 | Four Seasons Solar Products Corp. | Method and framework for a greenhouse or the like including a reversible gable adaptor |
US4719724A (en) * | 1984-07-19 | 1988-01-19 | A-Lok Products, Inc. | Precast concrete manhole adjustable bolt slot assembly for securing cast iron frame and cover |
US5044778A (en) * | 1987-11-30 | 1991-09-03 | Red Line Products | Linear barrier for septic tanks |
US5553730A (en) * | 1994-10-03 | 1996-09-10 | Kohnen; Stephen J. | Electrical junction box for use in curved structures |
US5586853A (en) * | 1995-03-16 | 1996-12-24 | Davidson Textron Inc. | Fastener cage for a panel |
USD406524S (en) * | 1997-08-08 | 1999-03-09 | Steenson Thomas W | Floating nut anchor for concrete construction |
US5890340A (en) * | 1996-08-29 | 1999-04-06 | Kafarowski; Zygmunt Grant | Concrete insert for attaching wall panels to building structures |
US5906287A (en) * | 1994-10-03 | 1999-05-25 | Kohnen; Stephen J. | Junction box construction for use in curved structures |
US7082728B1 (en) * | 2002-05-20 | 2006-08-01 | Plantilock Corporation | Electrical box for use with insulated concrete form building systems |
US20070039281A1 (en) * | 2005-08-08 | 2007-02-22 | Sergio Zambelli | Anchoring insert for embedding in a concrete component and concrete component provided therewith |
US20120096800A1 (en) * | 2009-04-17 | 2012-04-26 | Svein Berg Holding As | Joining device for two building elements |
US8950152B2 (en) * | 2012-02-27 | 2015-02-10 | David P. MILKIEWICZ | Adjustable anchor system |
US8966833B2 (en) | 2012-09-12 | 2015-03-03 | Mohamed R. Ally | Concrete insert |
-
1938
- 1938-08-13 US US224693A patent/US2181740A/en not_active Expired - Lifetime
Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2758467A (en) * | 1950-08-12 | 1956-08-14 | Philip N Youtz | Building apparatus |
US2794568A (en) * | 1955-11-25 | 1957-06-04 | Alexander H Johnson | Filler for electric outlet boxes |
US2957279A (en) * | 1957-03-18 | 1960-10-25 | Lloyd L Mcnair | Ceiling suspension element |
US3000146A (en) * | 1959-10-19 | 1961-09-19 | Methel A Rogers | Wall anchor |
DE1267820B (en) * | 1960-12-05 | 1968-05-09 | Raymond Francois Emile Camus | Large-area building board, in particular wall or ceiling board, made of concrete |
US3159945A (en) * | 1962-04-23 | 1964-12-08 | Fireproof Products Co Inc | Supporting device to be embedded in concrete structure |
US3319384A (en) * | 1964-09-08 | 1967-05-16 | Edward T Berg | Construction for extruded reglets |
US3524290A (en) * | 1968-06-18 | 1970-08-18 | Standard Products Co | Receiver for spline-type gaskets |
US4167196A (en) * | 1976-12-13 | 1979-09-11 | Acorn Engineering Co. | Vandal-proof plumbing valve access box |
US4130977A (en) * | 1977-01-10 | 1978-12-26 | Versabar Corporation | Concrete insert |
US4601139A (en) * | 1984-04-02 | 1986-07-22 | Four Seasons Solar Products Corp. | Method and framework for a greenhouse or the like including a reversible gable adaptor |
US4719724A (en) * | 1984-07-19 | 1988-01-19 | A-Lok Products, Inc. | Precast concrete manhole adjustable bolt slot assembly for securing cast iron frame and cover |
US5044778A (en) * | 1987-11-30 | 1991-09-03 | Red Line Products | Linear barrier for septic tanks |
US5553730A (en) * | 1994-10-03 | 1996-09-10 | Kohnen; Stephen J. | Electrical junction box for use in curved structures |
US5906287A (en) * | 1994-10-03 | 1999-05-25 | Kohnen; Stephen J. | Junction box construction for use in curved structures |
US6098825A (en) * | 1994-10-03 | 2000-08-08 | Kohnen; Stephen J. | Junction box construction for use in curved structures |
US5586853A (en) * | 1995-03-16 | 1996-12-24 | Davidson Textron Inc. | Fastener cage for a panel |
US5890340A (en) * | 1996-08-29 | 1999-04-06 | Kafarowski; Zygmunt Grant | Concrete insert for attaching wall panels to building structures |
USD406524S (en) * | 1997-08-08 | 1999-03-09 | Steenson Thomas W | Floating nut anchor for concrete construction |
US7082728B1 (en) * | 2002-05-20 | 2006-08-01 | Plantilock Corporation | Electrical box for use with insulated concrete form building systems |
US20070039281A1 (en) * | 2005-08-08 | 2007-02-22 | Sergio Zambelli | Anchoring insert for embedding in a concrete component and concrete component provided therewith |
US7654057B2 (en) * | 2005-08-08 | 2010-02-02 | Sergio Zambelli | Anchoring insert for embedding in a concrete component and concrete component provided therewith |
US20120096800A1 (en) * | 2009-04-17 | 2012-04-26 | Svein Berg Holding As | Joining device for two building elements |
US8950152B2 (en) * | 2012-02-27 | 2015-02-10 | David P. MILKIEWICZ | Adjustable anchor system |
US8966833B2 (en) | 2012-09-12 | 2015-03-03 | Mohamed R. Ally | Concrete insert |
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