Modularized bonding type anchor bolt screen

Abstract

A modular bond-type insert for building anchors allows controlled dispersion of adhesive in preformed holes and a plurality of insert screens (400) are attached to each other to create a number of sizes of screens. The insert includes an end cap (402) and further includes an abutment structure. The insert comprises a housing having a first end and a second end, the first end comprising a first set of connection structures and the second end comprising a second set of connection structures, the housing comprising a plurality of shutters (414) between the first end and the second end, each shutter adapted to vary the size of an opening associated with each said shutter.

Description

[0001] Priority Claim

[0002] This application claims priority to U.S. Patent Application No. 18 / 466,302, filed on September 13, 2023, entitled "MODULAR ADHESIVE ANCHOR SCREEN", which claims priority to U.S. Provisional Patent Application No. 63 / 407,280, filed on September 16, 2022, entitled "MODULAR ADHESIVE ANCHOR SCREEN", the disclosures of which are hereby incorporated by reference in their entireties. Background Art

[0003] When setting adhesive type structural anchors on the surface of a wall or other base material, perforated sleeves are used in various situations. The adhesive type anchor should be completely surrounded by an adhesive or mortar, and the adhesive should completely fill the space between the anchor and the hole wall. Currently, a sieve tube or a plastic screen retains the adhesive and prevents it from falling into the cavity in the base material during installation. When the anchor is inserted into the screen, the adhesive flows out of the screen or tube and adheres to the solid part of the base material.

[0004] Perforated sleeves are also useful when the anchor is set in a hollow base or a base with an internal open space (such as a brick, a concrete block, or a concrete masonry unit (CMU)). A screen type insert is used to keep the adhesive close to the anchor. Setting the anchor in a base with internal voids poses further difficulties for the insertion of the adhesive. The adhesive not only flows too far into the holes away from the anchor and drips from the upper surface of the holes, but also completely falls into the voids away from the anchor.

[0005] Concrete blocks are generally cement and / or concrete formed into rectangular units. Concrete blocks and concrete masonry units are hollow rather than solid rectangular blocks. A typical concrete block or CMU is usually a rectangular block with four complete sides or shells surrounding a cavity that opens outwards through the top and bottom faces. Wider concrete blocks and concrete masonry units can be formed by webs that divide the cavity and span the distance from one side of the block to the other. The walls of the concrete block or CMU can be narrow or thick, depending on the strength required for the block.

[0006] One problem with using perforated sleeves is that different sizes of holes need to be provided for different types of adhesives. Due to the multiple components and assembly processes, current plastic screens have become very expensive. The limited number of suppliers of the pipe netting has also caused potential supply chain disruptions, and the screens are only available in limited lengths because of low production volumes and the need to manufacture new dies for each length. Therefore, due to the limited length options, builders may have to purchase perforated sleeves or screens that are not optimal for the length of their application. Additionally, due to differences in adhesive chemistries, including different particle sizes and viscosities, each different adhesive typically requires a different pore size. Summary of the Invention

[0007] The present technology relates to an improved connection between anchor bolts or fastening elements in a substrate (such as masonry, cement, or stone), which uses an adhesive or mortar compound for the connection, and more specifically, provides an improved perforated or porous sleeve-shaped member for use with anchor bolts and adhesives.

[0008] One general aspect includes a modular bonding-type insert for a construction anchor bolt. The insert includes a first plastic insert that includes a housing having a first end and a second end, the first end including a first set of connection structures. The second end includes a second set of connection structures. The first set of connection structures is adapted to connect to the second set of connection structures of a second plastic sleeve, and the body includes a plurality of baffles between the first end and the second end.

[0009] Embodiments may include an insert, wherein the plastic insert includes a plurality of orifices that coincide with the louvers. Embodiments may include that the insert further includes a first end cap and a second end cap, a first set of connection structures adapted to be connected to the first end cap, and a second set of connection structures adapted to connect the second end cap to the plastic sleeve. Embodiments may include an insert, wherein each louver has at least an open side, a second side opposite the open side, and two sides defined by a notch in the housing and positioned between the open side and the second side. Embodiments may include an insert, wherein each louver has at least a hinged side, a free end opposite the hinged side, and two free sides between the hinged side and the free end. Embodiments may include an insert, wherein each of the plurality of louvers includes a hinged side perpendicular to the central axis of the screen, such that each louver opens along the axial length of the screen. Embodiments may include an insert, wherein each of the plurality of louvers includes a hinged side parallel to the central axis of the screen, such that each louver opens along the radial length of the screen. Embodiments may include an insert, wherein each of the plurality of louvers includes an inner side and an outer side, and a cam on the inner side of the louver. Embodiments may include an insert, wherein each of the plurality of louvers includes an inner side and an outer side, and a cam on the outer side of the louver. Embodiments may include an insert, wherein the screen includes a plurality of panels that are interleaved with the plurality of louvers, and some of the panels and some of the louvers include orifices. Embodiments may include an insert, wherein the first set of connection structures may include posts. Embodiments may include an insert, wherein the second set of connection structures may include notches.

[0010] Another aspect includes a modular bondable screen for an anchor insert assembly for use in a hole in a substrate. The screen includes a body having a first end and a second end, and a length between the first end and the second end. The body has a tubular shape defined by one or more outer surfaces, the one or more outer surfaces including a plurality of louvers, each of the louvers being configured to change an opening associated with the louver when the insert assembly is installed.

[0011] Embodiments may include a screen, where the size of the shutter changes as the screen is inserted into the hole. Embodiments may include a screen, where each of the plurality of shutters includes an inner side and an outer side, and a cam on the outer side of the shutter. Embodiments may include a screen, where the anchor bolt insert assembly includes an anchor bolt rod inserted into the screen, and as the anchor bolt rod is inserted into the screen, the size of the shutter changes. Embodiments may include the screen, where each of the plurality of shutters includes an inner side and an outer side, and a cam on the inner side of the shutter. Each of the plurality of shutters has at least a hinged side, a free end opposite the hinged side, and two free sides between the hinged side and the free end. Embodiments may include the screen, where each of the plurality of shutters includes a hinged side perpendicular to the central axis of the screen, such that each shutter opens along the axial length of the screen. The screen includes a plurality of panels interleaved with the plurality of shutters, and some of the panels and some of the shutters include orifices.

[0012] The Summary of the Invention is provided to introduce in a simplified form some concepts that will be further described in the Detailed Description below. The Summary of the Invention is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to help determine the scope of the claimed subject matter. The claimed subject matter is not limited to implementations that solve any or all of the disadvantages noted in the Background Art. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Aspects of the present disclosure are illustrated by way of example and are not limited by the drawings, in which like reference numerals indicate like elements.

[0014] Figure 1 is a perspective view of a prior art hole screen for use with adhesive anchors.

[0015] Figure 2A is filled with adhesive Figure 1 of the insert in a cross-sectional front view.

[0016] Figure 2B is filled with adhesive Figure 1 of the insert in a cross-sectional front view.

[0017] Figure 2C is Figure 1 of the insert in a cross-sectional front view, which is filled with adhesive and inserted through two oppositely disposed shells of a hollow concrete block unit.

[0018] Figure 2D is Figure 1Front elevation sectional view of the insert, which is filled with adhesive and inserted through two oppositely disposed housings of a substrate having inserted therein anchor bolts such that the adhesive is forced out of the orifices in the insert to bond with the housings of the concrete block units.

[0019] Figure 2E is Figure 1 Front elevation sectional view of the insert, which is filled with adhesive and inserted through one housing of a hollow concrete block unit.

[0020] Figure 3A is a perspective view of a first embodiment of an adhesive screen used in a modular adhesive anchor bolt insert according to the present technology.

[0021] Figure 3B is a plan view of a first embodiment of an adhesive screen and an attached end cap including a modular adhesive anchor bolt insert according to the present technology.

[0022] Figure 3C is along Figure 3A sectional view taken along line 3C-3C.

[0023] Figure 3D is along Figure 3D partial enlarged sectional view taken along line 3D-3D.

[0024] Figure 3E is along Figure 3A view taken along line 3E-3E.

[0025] Figure 4A is a perspective view of a second embodiment of an adhesive screen used in a modular adhesive anchor bolt insert according to the present technology.

[0026] Figure 4B is a plan view of a second embodiment of an adhesive screen portion of a modular adhesive anchor bolt insert according to the present technology.

[0027] Figure 4C is along Figure 4A view taken along line 4C-4C.

[0028] Figure 4D is along Figure 4A perspective sectional view taken along line 4D-4D.

[0029] Figure 4E is along Figure 4D partial enlarged sectional view taken along line 4E-4E.

[0030] Figure 5 is Figures 4A - 4E perspective sectional view of an anchor bolt of an embodiment of an adhesive anchor bolt, showing the movement of the axial shield.

[0031] Figure 6A Is a perspective view of a third embodiment of an adhesive screen used in a modular adhesive anchor insert according to the present technology.

[0032] Figure 6B Is a plan view of a third embodiment of an adhesive screen portion of a modular adhesive anchor insert according to the present technology.

[0033] Figure 6C Is along Figure 6A View along line 6C-6C.

[0034] Figure 6D Is along Figure 6A View along line 6D-6D.

[0035] Figure 6E Is along Figure 6D Partially enlarged cross-sectional view along line 6E-6E.

[0036] Figure 6F Is along Figure 6A View along line 6F-6F.

[0037] Figure 7A Is a perspective view of a fourth embodiment of an adhesive screen used in a modular adhesive anchor insert according to the present technology.

[0038] Figure 7B Is a plan view of a fourth embodiment of an adhesive screen portion of a modular adhesive anchor insert according to the present technology.

[0039] Figure 7C Is along Figure 7A View along line 7C-7C.

[0040] Figure 7D Is along Figure 7A View along line 7D-7D.

[0041] Figure 7E Is along Figure 7D Partially enlarged cross-sectional view along line 7E-7E.

[0042] Figure 8A Is a perspective view of a fourth embodiment of an adhesive screen used in a modular adhesive anchor insert according to the present technology.

[0043] Figure 8B Is a plan view of a fourth embodiment of an adhesive screen portion of a modular adhesive anchor insert according to the present technology.

[0044] Figure 8C Is along Figure 8A View along line 8C-8C.

[0045] Figure 8Dis a view along Figure 8A the line 8D-8D.

[0046] Figure 8E is a cross-sectional view along Figure 8A the line 8E-8E.

[0047] Figure 8F is a partial enlarged cross-sectional view along Figure 8D the line 8F-8F.

[0048] Figure 9A is Figures 8A - 8F a cross-sectional view of an anchor bolt inserted through two oppositely arranged shells of a hollow concrete block unit.

[0049] Figure 9B is Figures 8A - 8F a top view of an anchor bolt inserted through two oppositely arranged shells of a hollow concrete block unit.

[0050] Figure 10A is a perspective view of a fourth embodiment of an adhesive screen used in a modular adhesive anchor bolt insert according to the present technology.

[0051] Figure 10B is a plan view of a fourth embodiment of an adhesive screen portion of a modular adhesive anchor bolt insert according to the present technology.

[0052] Figure 10C is a view along Figure 10A the line 10C-10C.

[0053] Figure 10D is a view along Figure 10A the line 10D-10D.

[0054] Figure 10E is a perspective cross-sectional view along Figure 10A the line 10E-10E.

[0055] Figure 11A is Figures 10A - 10E a cross-sectional view of an anchor bolt inserted through two oppositely arranged shells of a hollow concrete block unit.

[0056] Figure 11B is Figures 10A - 10E a top view of an anchor bolt inserted through two oppositely arranged shells of a hollow concrete block unit.

[0057] Figure 12A is a perspective view of a fourth embodiment of an adhesive screen used in a modular adhesive anchor bolt insert according to the present technology.

[0058] Figure 12BIt is a plan view of the fourth embodiment of the adhesive screen portion of the modular adhesive anchor insert according to the present technology.

[0059] Figure 12C It is a view along Figure 12A line 12C-12C.

[0060] Figure 12D It is a view along Figure 12A line 12D-12D.

[0061] Figure 12E It is a perspective sectional view taken along Figure 12A line 12E-12E.

[0062] Figure 12F It is a partially enlarged sectional view along Figure 12A line 12F-12F.

[0063] Figure 12G It is a partially enlarged sectional view along Figure 12B line 12G-12G.

[0064] Figure 13A It is a perspective view of the fourth embodiment of the adhesive screen used in the modular adhesive anchor insert according to the present technology.

[0065] Figure 13B It is a plan view of the fourth embodiment of the adhesive screen portion of the modular adhesive anchor insert according to the present technology.

[0066] Figure 13C It is a view along Figure 13A line 13C-13C.

[0067] Figure 13D It is a view along Figure 13A line 13D-13D.

[0068] Figure 13E It is Figure 13A an enlarged view of the end shown. Detailed Description

[0069] The present technology, roughly described, provides an improved insert for adhesively securing a construction anchor in a substrate. The insert is a modular adhesive type insert for a construction anchor, which allows multiple insert screens to be attached to each other to produce screens of various sizes, and which is produced by a relatively simple injection molding process to provide different variants of inserts that can be used with a variety of types of adhesives. The insert includes an end cap and also includes an abutment structure (or second end cap). The insert includes a plastic insert having a first end and a second end, the first end including a first set of connection structures such as posts, and the second end including a second set of connection structures such as notches. The first set of connection structures is adapted to connect the end cap to the plastic sleeve, and the second set of connection structures is adapted to connect the abutment structure portion to the plastic sleeve. The first set of connection structures is also adapted to connect the first end of the plastic insert to the second set of connection structures on a second plastic sleeve.

[0070] Figure 1 and Figures 2A - 2E An apparatus and method for forming a connection between a substrate 1 and an anchor bolt 2 by means of an adhesive 3 are shown. Figure 1 and 2A -2E is reproduced from U.S. Patent No. 7837018.

[0071] A hole 4 is first formed in the substrate 1. To facilitate the connection between the anchor bolt 2 and the substrate 1, a porous screen 5 is used. The screen 5 is received by the hole 4 in the substrate 1. The screen 5 is formed by a frame 7 and a tube 7. The distal end 12 of the frame 7 is first inserted into the hole, and when the screen 5 is inserted into the hole 4, the tail end or the anchor bolt receiving end 15 is visible. The front axial portion 13 of the frame 7 is formed with an orifice 14, and the tube 7 has an orifice 17 formed therein.

[0072] The tube 7 is received by the frame 7 such that at least a portion of the tube 7 overlaps a portion of the front axial portion 13. Since there is an orifice 14 in the front axial portion 13 and an orifice 17 in the tube 7, the fluid material disposed within the inner region 8 surrounded by the frame 7 and at the front axial portion 13 can be forced radially outward through the orifice 17 in the tube 7 and through the orifice 14 in the front axial portion 13 of the frame 7 to reach the exterior 9 of the frame 7.

[0073] As Figure 2A and 2B shown, an injection gun is typically used to fill the tube 7 with the adhesive, and the screen 5 can be filled with a cap 39 having an opening for receiving the nozzle 41 of the injection gun when needed. The adhesive 3 is disposed within the inner region 8 of the frame 7, and the adhesive 3 is forced out of the frame 7 through the orifice 17 in the tube 7 and the orifice 14 in the axial section 13 of the frame 7.

[0074] As Figure 2C and 2DAs shown, when the substrate includes a concrete block unit or other hollow substrate 30, and the user wishes to set anchors in both the first web 31 and the second web 33 of the substrate 30, the screen 5, when filled with the adhesive 3, needs to be hard enough to be inserted into the first hole 4 formed in the first web 31 of the hollow substrate 30, extend through the inner cavity 32 of the hollow substrate 30, and be received in the second aperture formed in the second opposing web 33 of the hollow substrate 30.

[0075] like Figures 2C - 2E As shown, the outer diameter 35 of the screen is selected to match the diameters of the holes 4 or apertures in the substrate 1 or the first holes 4 and second holes 34 in the first web 31 and second web 33 of the hollow substrate 30. When the fastener or anchor 2 is inserted into the cylindrical screen 5, the adhesive 3 1s disposed within the screen 5 will be prevented from axially exiting from the distal end 12 of the screen 5 and will be radially exited through the apertures 14, 17 and 19 in the screen 5, as shown. Figure 2D and 2E shown.

[0076] like Figure 2D As shown, the frame 7 is formed with an abutment structure 37 at its anchor receiving end 15, which determines the depth to which the screen 5 can be driven or inserted into the hole 4. The abutment structure 37 can be formed by providing an annular flange at the anchor receiving end 15, or as shown in FIG. Figure 1 As shown, in this embodiment, this is formed by providing a pair of oppositely disposed flanges 38 at the anchor receiving end 15 of the frame 7.

[0077] Regarding adhesive 3, the apertures 17 in the mesh tube 7 and the apertures 19 in the second axial portion 18 are designed to be used with a specific adhesive 3. The properties of the adhesive 3 determine the size of the apertures 17 of the mesh tube 7 and the size of the apertures 19 in the second axial portion 18 of the frame 7.

[0078] For a hollow substrate, such as substrate 30, the substrate is prepared by forming aligned holes 4 and 34 in a first web 31 and a second web 33 of the hollow substrate 30. Using a drill, a first hole 4 is formed in the first web 31 of the substrate 30. The drill is then inserted further, extending through the inner cavity 32 of the hollow substrate 30, and a second hole 34 is blind drilled in the opposing second web 33 of the hollow substrate 30.

[0079] Figures 1 - 2E The solutions shown in require multiple parts and assemblies and therefore become very expensive over the years, which is the opposite of what they were intended to do. In addition, due to differences in adhesive chemistry, each different adhesive requires a different screen. The embodiments of the modular adhesive anchor disclosed herein solve these and other problems.

[0080] Figures 3A - 3D Figure 1 shows a first embodiment of a modular adhesive - type anchor bolt screen 300 according to the present technology. As Figure 3B shown, the adhesive - type anchor bolt screen 300 includes a portion of an insert 350, and the insert 350 includes a screen 300, an end cap 330, and an adjacent structure 340. The screen 300 includes a first set of connection structures, and the first set of connection structures includes notches 310 that cooperate with posts 311 on the adjacent structure 340 to fix the adjacent structure 340 inside the screen 300. The screen 300 includes a second set of connection structures, and the second set of connection structures includes posts 320 that cooperate with notches 325 on the end cap 330 to fix the end cap 330 on a collar 322 of the screen 300. The notches 310 can be used to connect with the posts 320 to serially connect multiple screens 300 to form inserts of different sizes.

[0081] The adhesive - type anchor bolt screen 300 is a modular injection - molded plastic adhesive - type screen designed to work with a variety of types of adhesives. The screen 300 includes a variable - sized mesh of apertures 312, 314. (In FIG. 3, not every aperture or row of apertures is labeled so as not to obscure the illustration of the screen.) In one embodiment, the apertures are circular and have varying sizes. For example, the apertures 314 in row 314a can have a diameter of 0.015 inches, and the apertures 312 in row 312a can have a diameter of 0.010 inches. In one embodiment, the diameter of the apertures in each row 312a, 314b alternates with respect to the diameter of adjacent rows and repeats across the surface of the screen. In alternative embodiments, apertures of different sizes are located in the same row in any number of different patterns (i.e., each row does not need to be apertures of the same size). In alternative embodiments, more than two different - diameter apertures are used. Each aperture can have a different cross - sectional opening shape. For example, the aperture can be circular, rectangular, triangular, oval, star - shaped, or other geometric shapes. Additionally, the spacing and pattern of the apertures can vary.

[0082] As Figure 3C shown, the screen 300 has a generally circular cross - section. The interior of the screen 300 includes support ribs 352 between a front or first end 302 that is first inserted into a hole and a second tail end or anchor - bolt receiving end 304. In one embodiment, eight support ribs are provided on the interior of the screen 300. More or fewer ribs can be used.

[0083] For connection using an anchor bolt, an adhesive 3 is disposed within an interior region of the screen 300, where the abutment structure 340 and end cap 330 are attached after the insert 350 is disposed in the substrate. Inserting the anchor bolt 2 into the insert 350 (the screen 300 to which the abutment structure 340 (or second end cap) and first end cap 330 are attached) before the adhesive solidifies will force the adhesive to exit the screen 300 through the orifices 312, 314. Sufficient adhesive is provided into the insert such that the adhesive completely surrounds and fully contacts the portion of the anchor bolt 2 inserted into the screen 300. The adhesive is extruded from the screen 300 and contacts the hole in the substrate 1, and when the adhesive solidifies, the anchor bolt 2 is bonded to the substrate by contact with the adhesive.

[0084] Varying opening sizes, orifice spacings, and orifice screen patterns allow the screen 300 to be used with adhesives having different viscosities and / or particle sizes to work in the same screen. Further variations are possible by changing the shape (circular, rectangular, triangular, oval, star-shaped, etc.) and spacing / pattern of the orifices.

[0085] Figures 4A - 4E A second embodiment of a screen 400 for a modular bonded insert is shown. The screen 400 includes a plurality of internally actuated axial flaps 414 that allow the adhesive to be extruded during installation as the anchor bolt forces the flaps to open. (The flaps are referred to as "axial" because they are actuated outwardly along the axis (A) of the anchor bolt inserted into the screen 400.) It should be understood that the screen 400 can also be assembled with an end cap 330 at the first end 402 and an abutment structure 340 at the second end 404 in a manner similar to that shown for the Figure 3B screen 300 in. The first end 402 includes a first set of connection structures and a second set of connection structures. The first set of connection structures includes posts 410 to allow attachment of the end cap, and the second set of connection structures includes notches 420 in the second end 404 that allow connection of the abutment structure and / or allow multiple screens 400 to be connected to each other, thus allowing the use of multiple sizes of screens to produce inserts of different sizes.

[0086] As Figures 4C to 4E shown, each individual flap 414 includes an angled cam or cams 416, where the cam 416 includes a lower end 416a closer to the second trailing end 404 of the screen 400 and a higher end 416b closer to the first leading end. As Figure 4E best shown in, each flap has a free end 415 and a hinged edge 413 connected to the body 14. When the anchor bolt is inserted into the interior of the screen 400, the angled cam 416 forces the flap 414 to open.

[0087] As Figure 4A and 4CAs shown, the screen 400 has a generally hexagonal cross-section defined by six sides 405, each side 405 including an axial shield 414. More or fewer sides may be used in various embodiments. The sides of the shield are separated by support ribs 450 between a front end or first end 402 that is first inserted into the hole and a second tail end anchor receiving end 404. In one embodiment, six support ribs are provided, but more or fewer ribs may be used, as well as more or fewer sides with axial shields. In other embodiments, some sides need not include a shield and may be staggered with sides that include a shield.

[0088] Figure 5 An anchor 2 inserted into the screen 400 without adhesive is shown. (Note that adhesive will be present during installation of the anchor.) Each angled cam 416 engages the body of the anchor (in the case of, the body of the anchor is the fastener thread). When the anchor engages the cam 416 of the shield 414, the shield rotates about the hinge edge 413 and its free end 415 is forced outward, allowing any adhesive in the screen to be extruded from the screen and into the substrate (or free space) in which the anchor is installed, as shown at 505. As shown at 510, the unengaged shield remains closed and prevents extrusion of adhesive at portions of the screen where the anchor has not reached. Figure 5 the case of, the body of the anchor is the fastener thread). When the anchor engages the cam 416 of the shield 414, the shield rotates about the hinge edge 413 and its free end 415 is forced outward, allowing any adhesive in the screen to be extruded from the screen and into the substrate (or free space) in which the anchor is installed, as shown at 505. As shown at Figure 5 510, the unengaged shield remains closed and prevents extrusion of adhesive at portions of the screen where the anchor has not reached.

[0089] Figures 6A - 6F Another embodiment of a screen 600 is shown, which may be used with modular adhesive-type anchors. The screen 600 is formed with a plurality of internally actuated radial shields 614a and 614b. (The shields are referred to as "radial" because they actuate outwardly perpendicular to the axis of the anchor inserted into the screen 600 and along the outer radius of the screen 600.) The shields are generally planar and are arranged in six sides 605. More or fewer sides of the shield may be used. Each side is separated by a support rib 650. Again, all instances of the shield 614 are not numbered so as not to obscure the illustration in the figure. Figure 6A is a perspective view, Figure 6B and is a plan view of this embodiment. It should be understood that the screen 600 may also be assembled with an end cap 330 at the first end 602 and an abutment structure 340 at the second end 604 in a manner similar to that shown for the screen 300 in Figure 3B The end 602 includes a first set of connection structures and a second set of connection structures. The first set of connection structures includes posts 620 to allow attachment of the end cap, and the second set of connection structures includes notches 610 in the second end 604 that allow connection of the abutment structure and / or allow multiple screens 600 to be connected to each other.

[0090] As Figures 6A - 6EAs shown, the baffles 614a and 614b have two different sizes and structures. In an alternative configuration, the baffles have the same size and configuration. The baffle 614a is generally smaller than the baffle 614b. Each baffle 614a is placed opposite a corresponding baffle 614b on one side of the screen 600 and alternates in an axial row along one side of the screen 600 so as to be arranged on each side of the screen 600 in a staggered manner. The screen 600 includes six sides, but more or fewer sides can be used. As Figure 6E and 6F shown, each baffle includes a hinge side and three free sides. The baffle 614a includes a single hinge 613a opposite the free end 615a, and the free end 615a has two free sides 617a and 618a. The baffle 614b includes two hinges 613b opposite the free end 615b, and the free end 615b has two free sides 617a and 618a. When the anchor bolts enter the interior of the screen and engage the angled cams 616a, 616b on the corresponding baffles 614a, 614b, each baffle 614a and 614b rotates about one or more of its hinges. This allows the adhesive in the interior of the screen to leave the opening formed by the movement of the hinge and be extruded from the screen into the substrate in which the anchor bolts are placed.

[0091] As Figure 6C and 6D shown, the first end 602 includes a web 625 formed by a plurality of generally triangular fingers 626, and openings 627 are formed at the ends of the fingers 626. For example, this allows multiple screens to be connected when the anchor bolts are provided by a plurality of cinder blocks. As in the previous embodiment, the baffle opens to allow the adhesive to flow when the anchor bolts are inserted, and the closed baffle allows less (or no) adhesive to flow. In addition, the baffle prevents excessive adhesive from flowing out prematurely from the distal end of the screen with the highest pressure until the rod is inserted to that depth. The internal baffle cams can have the same or different heights / geometries along the length of the screen. This allows adhesives with different viscosities and / or particle sizes to function in the same screen and controls the flow of the adhesive along the entire length of the screen.

[0092] The screen 600 has a generally hexagonal cross-section defined by six sides, and each side includes radial baffles 614a, 614b. The sides of the baffle are separated by support ribs 650 between the front distal end 602 that is first inserted into the hole and the tail end or anchor bolt receiving end 604. In one embodiment, six support ribs are provided, but more or fewer ribs can be used, as well as more or fewer sides with radial baffles. In other embodiments, some sides do not need to include radial baffles and can be staggered with the sides that include radial baffles.

[0093] Figure 7A-7F shows another embodiment of the screen 700, which can be used with a modular bonded anchor insert. Figure 7A is a perspective view, Figure 7B and is a plan view of this embodiment. The screen 700 is formed with a plurality of internally actuated axial baffles 714 arranged in six rows on the screen 700, each row being separated by a support rib 750. All instances of the baffles are not numbered so as not to obscure the illustration in the figure. It should be understood that the screen 700 can also be assembled with an end cap 330 at the first end 702 and an abutment structure 340 at the second end 704 in a manner similar to that shown for the screen 300 in Figure 3B Furthermore, the end 702 can engage the end 704 to connect a plurality of screens together. The screen 700 includes a first set of connection structures and a second set of connection structures. The first set of connection structures includes posts 710 on the end 702 to cooperate with the end cap 330, and the second set of connection structures includes notches 720 on the end 704 to cooperate with the posts 710 of the abutment structure 340.

[0094] As Figures 7B to 7E shown, the baffles 714 are of substantially equal size, and each baffle includes a hinge side and three free sides. The baffle 714 includes a single hinge 713 opposite a free end 715 having two free sides 717 and 718. When an anchor enters the interior of the screen and engages the angled cam 716 on the corresponding hinge 713, each baffle 714 rotates about its hinge. This allows the adhesive in the interior of the screen to leave the opening formed by the movement of the hinge and be extruded from the screen into the substrate in which the anchor is placed.

[0095] The screen 700 has a generally hexagonal cross-section defined by six sides, each side including a radial baffle 714. The sides of the baffle are separated by support ribs 750 between a front distal end 702 that is first inserted into the hole and a tail end or anchor receiving end 704. In one embodiment, six support ribs are provided, but more or fewer ribs can be used, as well as more or fewer sides with radial baffles. In other embodiments, some sides do not need to include radial baffles and can be staggered with sides that include radial baffles.

[0096] Figures 8A - 8F shows another embodiment of the screen 800, which can be used with a bonded anchor insert. Figure 8A is a perspective view, Figure 8B and is a plan view of this embodiment. The screen 800 is formed with a plurality of externally actuated axial baffles 814 arranged in eight rows on the screen 800. All instances of the baffles are not numbered so as not to obscure the illustration in the figure. An end cap 827 is shown attached to the first front end 802 of the screen 800. The screen 800 can also be in a manner similar to that regarding Figure 3Bis fitted with an adjacent structure at the second end 804 in a manner similar to that shown for the screen 300. The screen 800 includes a connection structure including 820 at the end 802 and a connection structure including a notch 810 at the end 804 to cooperate with the post 820, or as shown, corresponding notches are included on the end cap 827 of the screen 800. In some embodiments, the end 802 can be joined to the end 804 to connect a plurality of screens together using the notch 810 and the post 820.

[0097] As Figures 8B to 8E shown, the baffles 814 are approximately equal in size, and each baffle includes a cam 816, a hinge side 813, and three free sides 815, 817, and 818. The baffle 814 includes a single hinge side 813 opposite the free end 815 having two free sides 818 and 818, thereby defining each baffle as having a generally rectangular shape in the axial direction of the screen 800. When the screen enters a hole formed in a substrate or a substrate wall into which the screen is inserted, each baffle 814 rotates about its hinge. Thus, during installation, the adhesive within the screen is only extruded in areas adjacent to the opening area in the substrate.

[0098] Eight baffles 814 are provided around a circular cross-section ( Figure 8E ), thereby forming a baffle ring around the cross-section. Each of the eight baffles aligned in one of the five baffle rings near the first end 802 of the screen 800 is separated by a support ring 852 along approximately half of the screen 800 adjacent to the first end 802. In an embodiment, the first five rings of the baffles are separated by the support ring 852, while the last four rings of the baffles are not separated by the support ring. Each baffle in the baffle ring is separated by a support rib 850 or a support rib 855 between the front distal end 804 and the tail end or the anchor receiving end 804 that are first inserted into the hole. In one embodiment, eight support ribs 850, 855 (four each) are provided, but more or fewer ribs and more or fewer baffles can be used in each ring. In other embodiments, some sides do not need to include baffles and can be staggered with the sides that include baffles.

[0099] Figure 9A and 9B show the opening of the baffle and the extrusion of the adhesive. Figure 9A shows the assembled insert 890, which includes a screen 800 attached with an end cap 827 and an adjacent structure 828. The insert 890 has been inserted into a first hole 944 formed in a first web 931 of a hollow substrate 930, extends through the lumen 910 of the hollow substrate 930, and is received in a second hole formed in a second opposite web 932 of the substrate 930. As Figure 9AAs shown, at 902 and 904, the baffles 814 within the holes 944 and 945 are opened, where the cams 816 of any baffle within the holes engage the sides of the holes 944, 945, forcing each baffle to rotate about its hinge side 813 towards the interior of the screen 900. This allows the adhesive to be extruded from the opened baffles within the solid portions of the webs 931 and 932 (in region 902) to bond with the solid web of the substrate 930 and also extend slightly adjacent to the webs 931, 932 to maximize the bond with the solid material. At 906, the baffle within the internal cavity 910 in the closed substrate is closed, thereby preventing or inhibiting the extrusion of the adhesive within most of the internal cavity 910. As a result, when the anchor bolt 2 is inserted into the screen 800, extrusion occurs adjacent to the respective webs 931, 932 at region 902, extruded from the opened baffles within the webs 931, 932. This is shown in Figure 9B as Figure 9B showing the attached screen 800 and the adjacent structure 828 (and the end caps within the web 952). As Figure 9B shown, when the anchor bolt 2 is fully inserted into the screen 800, the extrusion of the adhesive within the cavities 910a, 910b occurs adjacent to the respective webs 931a, 931b, 932a, 932b (e.g., at 922 and 926). Thus, the baffle 914 is activated externally to open only in the solid portions of the substrate to allow more adhesive to flow out, where the substrate is solid, and the closed baffles located in the hollow portions of the substrate allow less (or no) adhesive to flow.

[0100] Figures 10A - 10E Another embodiment of a screen 1000 is shown, which can be used with an adhesive - type anchor bolt insert. Figure 10A is a perspective view, Figure 10B and is a plan view of this embodiment. The screen 1000 is formed with a plurality of externally - actuated radial baffles 1014 arranged in eight rows on the screen 1000. All instances of the baffles are not numbered so as not to obscure the illustration in the figure. Each of the eight baffles aligned within one of the four baffle rings near the first end 1002 of the screen 1000 is separated by a support ring 1052 along approximately half of the screen 1000 adjacent to the first end 1002. In the embodiment, the first four rings of the baffles are separated by the support ring 1052, while the last four rings of the baffles are not separated by the support ring. An end cap 1027 is shown attached to the first front end 1004 of the screen 1000. The screen 1000 can also be similar to that regarding Figure 3Bis fitted with an adjacency structure at the second end 1002 in the manner shown by the screen 300. The screen 1000 includes a connection structure having posts 1020 on an end 1004 and a connection structure having notches 1010 on an end 1002 to mate with the posts 1020, or as shown, includes corresponding notches on the end cap 1027 of the screen 1000. In some embodiments, the end 1002 may be joined to the end 1004 to connect a plurality of screens together using the notches 1010 and the posts 1020.

[0101] As Figures 10B to 10E shown, the baffles 1014 are of substantially equal size, and each baffle includes a cam 1016, a hinge side 1013, and three free sides 1015, 1017, and 1018. The baffle 1014 includes a single hinge side 1013 opposite the free end 1015 having two free sides 1018 and 1018, thereby defining each baffle as having a generally rectangular shape in the axial direction of the screen 1000. When the screen enters a hole formed in a substrate or a substrate wall, each baffle 1014 rotates about its hinge, and the screen is inserted into the substrate or the substrate wall. Thus, during installation, the adhesive within the screen is extruded only in the regions adjacent to the opening areas in the substrate.

[0102] Eight baffles 1014 are provided around a circular cross-section ( Figure 10E ), thereby forming a baffle ring around the cross-section. Each hinge side 1013 is attached to a support rib 1050. Each free side 1015 is opposite one of four internal support bosses 1052. Each of the eight baffles aligned in a ring around the screen 1000 is separated by a support ring 1052. Four support rings 1052 are provided between the front end 1004 and approximately half way towards the trailing end 1002 of the screen 1000. The support ribs 1050 and the support ribs 1052 extend between the front distal end 804 that is first inserted into the hole and the trailing end or the anchor receiving end 1002. In one embodiment, eight support ribs 1050, 1055 (four each) are provided, but more or fewer ribs and more or fewer baffles may be used in each ring. In other embodiments, some sides need not include baffles and may be staggered with the sides that include baffles.

[0103] Figure 11A and 11B Similar to Figure 9A and 9B , and shows the opening of the baffles and the extrusion of the adhesive using the screen 1000 in the insert 1150. Figure 11AAn insert 1150 is shown with a screen 1000, an end cap 1027, and an adjacent structure 1028 attached thereto. The insert 1050 has been inserted into a first hole 1144 formed in a first web 1131 of a hollow substrate 1130, extends through the inner cavity 1110 of the hollow substrate 1130, and is received in a second hole formed in a second opposite web 1132 of the substrate 1130. As Figure 11A shown, at 1102, the baffles 1014 within the holes 1144 and 1145 are open, where the cams 1016 of any baffle within the holes engage the sides 1144, 1145 of the holes, forcing each baffle to rotate about its hinge side 1013 toward the interior of the screen 1100. This allows the adhesive to be extruded from the open baffles within the solid portions of the webs 1131 and 1132 to bond with the solid webs of the substrate 1130 and also extend slightly adjacent to the webs 1131, 1132 to maximize the bond with the solid material. At 1106, the baffles within the closed voids 1110a, 1110b are closed, thereby preventing or inhibiting the extrusion of the adhesive within most of the web voids 1110a, 1110b. As a result, when the anchor bolts 2 are inserted into the screen 1000, squeezing occurs adjacent to the respective webs 1131, 1132 and in the region 1102 because the baffles are open in this region. This is shown in Figure 11B which Figure 11B shows the attached screen 1000 and adjacent structure 1028 (and the end cap within the web 1152). As Figure 11B shown, when the anchor bolts 2 are fully inserted into the screen 1000, the extrusion of the adhesive within the cavities 1110a, 1110b occurs adjacent to the respective webs 1131a, 1131b, 1132a, 1132b. Thus, the baffles 1114 are activated externally to open only in the solid portions of the substrate to allow more adhesive to flow out, where the substrate is solid, and the closed baffles located in the hollow portions of the substrate allow less (or no) adhesive to flow. Again, the baffles at 1124 are closed, thereby squeezing the adhesive against the walls adjacent to the webs 1131, 1132 at 1122 and 1126, for example.

[0104] Figures 12A - 12F Another embodiment of a screen 1200 is shown, which can be used with an adhesive - type anchor insert. Figure 12A is a perspective view, Figure 12Bis a plan view of the embodiment. The screen 1200 is formed with a plurality of externally actuated radial baffles 1214 arranged in four rows on the screen 1200, and a plurality of apertures 1224, 1225, and 1228. The apertures are provided in the radial baffles and in the fixed portions of the screen 1200 such that they coincide with the baffles. All instances of the baffles and apertures are not numbered so as not to obscure the illustration in the figure. The sections of the baffle 1214 are separated by a support ring 1250. The aperture 1224 is provided in each radial baffle 1214. The aperture 1225 is provided in the fixed wall panel 1226. The aperture 1228 is provided in the end cap 1227. Two panels 1226 are adjacent to each radial baffle 1214, and the two panels 1226 are separated by one of four support bosses 1252. The end cap 1227 is shown attached to the first front end 1204 of the screen 1200. In this embodiment, the end cap 1227 is integrally formed with the remainder of the screen 1200 by a plastic molding process. The screen 1200 can also be fitted with an abutment structure at the second end 1202 in a manner similar to that shown for the screen 300 with respect to Figure 3B . The screen 1200 includes a connection structure having a post 1220 at the end 1204 and a connection structure having a notch 1210 at the end 1202 for mating with the post 1220, or as shown, includes a corresponding notch on the end cap 1227 of the screen 1200. In some embodiments, the end 1202 can engage the end 1204 to connect a plurality of screens together using the notch 1210 and the post 1220.

[0105] As Figures 12B to 12E shown, the baffles 1214 are approximately equal in size, and each baffle includes a cam 1216, a hinge side 1213, and three free sides 1215, 1217, and 1218. The baffle 1214 includes a single hinge side 1213 opposite the free end 1215 having two free sides 1218 and 1218, thereby defining each baffle as having a generally rectangular shape in the axial direction of the screen 1200. When the screen enters a hole formed in a substrate or substrate wall into which the screen is inserted, each baffle 1214 rotates about its hinge 1213 toward the interior of the screen 1200. Thus, during installation, the adhesive within the screen is extruded along the entire length of the screen, but more so in the regions adjacent to any web walls and within the substrate wall due to the open baffles.

[0106] Four baffles 1214 are arranged around a circular cross-section ( Figure 12E)。Each hinge side 1213 is attached to the support rib 1250. Each free side 1215 is opposite one of the four internal support bosses 1252. Each of the eight baffles aligned in a ring around the screen 1200 is separated by a support ring 1252. Four support rings 1252 are disposed between the front end 1204 of the screen 1200 and approximately halfway toward the trailing end 1202. The support ribs 1250 and the support ribs 1252 extend between the front distal end 804 that is first inserted into the hole and the trailing end or the anchor receiving end 1202. In one embodiment, eight support ribs 1250, 1255 (four each) are provided, but more or fewer ribs and more or fewer baffles may be used in each ring. In other embodiments, some sides do not need to include baffles and may be staggered with the sides that include baffles.

[0107] As described above, Figures 12A - 12F The embodiment of includes an axial baffle and a fixed orifice that coincides with the orifice. This embodiment provides the advantage of being suitable for different drilling techniques in the art, which may result in slightly different diameters of the holes drilled in the substrate. Holes of different diameters in the substrate will affect how much the baffle can open, and in the case of extremely large hole sizes, the baffle may not open much at all, resulting in very little adhesive being extruded from the screen. Even if the baffle is not fully opened by the substrate, the addition of the fixed orifice allows a certain amount of adhesive to flow out along the entire length of the screen. In this case, some smaller amount of adhesive can come out of the orifice along the entire length of the screen, and then additional adhesive will come out in the solid portion of the substrate where the baffle is forced open, thereby creating a strong bond in those areas.

[0108] Figures 13A - 13E Another embodiment of the screen 1300 is shown, which can be used with an adhesive - type anchor insert. Figure 13A is a perspective view, Figure 13B is a plan view of this embodiment. Figure 13C is along Figure 13A the line 13C - 13C view. Figure 13D is along Figure 13A the line 13D - 13D view. Figure 13E is Figure 13A an enlarged view of the end shown.

[0109] The screen 1300 is formed with a plurality of externally actuated baffles 1314 that have a limited range and only have one open side 1318 ( Figure 3DAs shown in). The baffle 1314 is arranged in four rows on the screen 1300, and a plurality of orifices 1325 are provided in the fixed part of the screen 1300. All instances of the baffle and orifice are not numbered so as not to obscure the illustration in the figure. The radial sections of the baffle 1314 are separated by support rings 1350. In one embodiment, seven support rings 1350 are provided. In each radial section except the section 1380 closest to the end 1304, two opposing baffles are provided. In the radial section 1380 near the end 1304, four baffles 1314 are provided. The orifices 1325 are provided in the fixed wall plate 1326. One of the four support bosses 1352 separates each of the baffle 1314 and the fixed wall plate 1326. The end cap 1327 is shown attached to the first front end 1304 of the screen 1300. In this embodiment, the end cap 1327 is integrally formed with the rest of the screen 1300 by a plastic molding process but is attached to the screen by a tab 1327a. The screen 1300 can also be assembled with an adjacent structure 1340 at the second end 1302 in a manner similar to that shown for the screen 300 in Figure 3B . The adjacent structure 1340 is also integrally formed and attached to the screen 1300 by a tab 1340a. The screen 1300 includes a connection structure having columns 1320 on the end 1302 and a connection structure having notches 1310 at the end 1304 for mating with the columns 1320, or as shown, includes corresponding notches on the end cap 1327 of the screen 1300. In some embodiments, the end 1302 can be joined to the end 1304 to connect a plurality of screens together using the notches 1310 and columns 1320.

[0110] As Figures 13B to 13E shown, the baffles 1314 are of substantially equal size, and specifically as Figure 3E shown, each baffle includes a cam 1316, an open side 1318, and two serrated sides 1315 and 1317. The fourth side 1319 is connected to one of the rings 1350, thereby defining each baffle as having a generally rectangular shape in the axial direction of the screen 1300. When the screen enters a hole formed in the substrate or substrate wall into which the screen is inserted, each baffle 1314 can be pressed inward to increase the area at the side facing the interior of the screen 1300. Thus, during installation, the adhesive within the screen is extruded along the entire length of the screen, but this is especially true in the regions adjacent to any web walls and within the substrate wall.

[0111] The support ribs 1352 extend between the front distal end 1302 that is first inserted into the hole and the tail end or anchor bolt receiving end 1304. In one embodiment, four support ribs 1352 (four each) are provided, but more or fewer ribs and more or fewer baffles can be used in each ring. In other embodiments, some sides do not need to include baffles and can be staggered with the sides that include baffles.

[0112] The embodiment of FIG. 13 has reduced the number of panels with cams and shutters to reduce the installation effort and prevent too much adhesive from flowing out at any single location. The shutters 1316 are configured to open only along their open edges when the cams are activated, while other embodiments herein are free on three sides. This provides more flow control and prevents the shutters from accidentally opening outward under pressure, where the adhesive may escape uncontrollably into the void areas of the substrate. Additionally, the adhesive is controlled so that it can only escape into the solid portions of the substrate. Orifices 1325 are provided in addition to the shutters to allow the adhesive to be extruded even if the shutters are not properly activated due to misinstallation.

[0113] The notches 1310 are configured to be much larger than the posts 1320, and the sides 1321 and 1323 are relatively deep so that any adhesive that flows back up along the screen due to flow restrictions in the screen can leave via the notches 1310. The removable top cap 1327 can be tethered to the top end 1392 of the screen 1300, and the bottom cap 1349 can be tethered or may not be tethered to the end 1304 of the screen. The bottom cap 1340 is attached by pressing it onto the notch 1310 at the bottom of the screen (in a manner similar to assembling several screens together) and removed by twisting if additional screens are needed. The internal axial ribs 1352a help guide and center the threaded rod and prevent it from sagging in a horizontal application. The cams 1316 serve as activation means for the shutters and also hold the screen in place in the holes such that it does not slide out of the upwardly inclined and / or top holes.

[0114] In various embodiments, externally actuated shutter cams can have the same or different heights / geometries along the length of the screen to control the adhesive flow at different locations in the screen. Generally, embodiments herein with axially oriented shutters provide long lever arms for easy hinging at the connection points, making it easier to insert into the substrate. Both allow adhesives with different viscosities and / or particle sizes to function in the same screen and control the flow of the adhesive along the entire length of the screen. Radially oriented shutters generally have short lever arms for more precise control of the adhesive flow, but can increase the force required for insertion into the substrate. The shutter cams can serve as barbs to hold the screen in the top holes.

[0115] Each of the screens 300, 400, 600, 700, 800, 1000, 1200, and 1300 can be manufactured as a single injection-molded plastic part, thus reducing manufacturing costs and significantly simplifying the supply chain. Alternative materials can be used to manufacture the screens, including sheet metal (such as steel, stainless steel, aluminum, etc.), cardboard, or any material with sufficient strength and flexibility to allow the shutter hinge to function properly. Each of the screens 300, 400, 600, 700, 800, 1000, 1200, and 1300 is modular because they can be connected to another one of the corresponding anchor screens 300, 400, 600, 700, 800, 1000, 1200, and 1300 to provide variable lengths as needed and provide custom lengths. In an embodiment, the end caps are shown as being integrally formed as part of the screen and / or separate from the body of the screen but attachable to the body of the screen. Each screen embodiment herein can include attached end caps or separate end caps. Additionally, integrally formed end caps can be removed in the field to allow connection between multiple screens. Although the connection structures are described differently herein as notches and posts, it should be understood that various different types of connection structures can be used with the techniques described herein.

[0116] Each of the screens 300, 400, 600, 700, 800, 1000, 1200, and 1300 is referred to herein as being generally cylindrical and surrounds a longitudinal axis A that passes through the center of each of the cross-sections shown in Figure 3E , 4C , 7C, 8C, and 8E. However, some embodiments (e.g., screens 400, 600, 700, 800, 1000, 1200, and 1300) are not completely cylindrical because they include sides on which shutters are formed or include cross-sections defined by the shutters themselves that are not strictly true circular cross-sections. Each of the screens 300, 400, 600, 700, 800, 1000, 1200, and 1300 is referred to herein as having a tubular shape - a three-dimensional geometric form similar to a tube or cylinder, characterized by a hollow interior and one or more outer surfaces that result in a generally cylindrical shape. Each of the screens 300, 400, 600, 700, 800, 1000, 1200, and 1300 is generally symmetric about the longitudinal axis A, where the cross-sectional area is consistent along its length.

[0117] As used herein, the terms "top" and "bottom", "upper" and "lower", and "vertical" and "horizontal" are for illustrative and explanatory purposes only and are not meant to limit the description of the present invention, since the items cited may be interchanged in position and orientation. Further, as used herein, the terms "substantially" and / or "about" mean that the specified dimension or parameter may vary within acceptable manufacturing tolerances for a given application. In one embodiment, the acceptable manufacturing tolerance is ±2.5% of the specified dimension.

[0118] The terms used herein are for the purpose of describing particular aspects only and are not intended to limit the disclosure. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that when used in this specification, the terms "comprises" and / or "comprising" specify the presence of the stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0119] The foregoing detailed description has been presented for purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise form disclosed. Many modifications and variations are possible in light of the above teaching. The described embodiments were chosen in order to best explain the principles of the invention and its practical application, to thereby enable others skilled in the art to best utilize the invention in various embodiments and with various modifications as are suited to the particular use contemplated. The scope of the invention is intended to be defined by the appended claims.

Claims

1. A modular adhesive insert for an anchor bolt assembly, comprising: a housing having a first end and a second end, the first end including a first set of connection structures, the second end including a second set of connection structures, the housing including a plurality of baffles between the first end and the second end, each of the baffles being adapted to change the size of an opening associated with each baffle.

2. The insert according to claim 1, wherein at least a first subset of the plurality of orifices has an opening of a first size, and at least a second subset of the plurality of orifices has an opening of a second size.

3. The insert according to claim 1, further comprising a first end cap and a second end cap, the first set of connection structures being adapted to connect to the first end cap, and the second set of connection structures being adapted to connect the second end cap to the housing.

4. The insert according to claim 1, wherein each baffle has at least an opening side, a second side opposite the opening side, and two sides defined by a notch in the housing and positioned between the opening side and the second side.

5. The insert according to claim 1, wherein each of the plurality of baffles includes an inner side and an outer side, and a cam on the inner side of the baffle.

6. The insert according to claim 1, wherein each of the plurality of baffles includes an inner side and an outer side, and a cam on the outer side of the baffle.

7. The insert according to claim 1, wherein each baffle has at least a hinged side, a free end opposite the hinged side, and two free sides between the hinged side and the free end.

8. The insert according to claim 7, wherein each of the plurality of baffles includes a hinged side perpendicular to the central axis of the housing such that each baffle opens along the axial length of the housing.

9. The insert according to claim 7, wherein each of the plurality of baffles includes a hinged side parallel to the central axis of the housing such that each baffle opens along the radial length of the housing.

10. The insert according to claim 9, wherein the housing includes a plurality of panels interleaved with the plurality of baffles, and some of the panels and some of the baffles include orifices.

11. The insert according to claim 1, wherein the first set of connection structures includes posts, and the second set of connection structures includes notches.

12. A modular adhesive screen for an anchor bolt insert assembly, comprising a body having a first end and a second end, and a length between the first end and the second end, the body having a tubular shape defined by one or more outer surfaces, the one or more outer surfaces including a plurality of baffles, each baffle configured to change an opening associated with the baffle when the insert assembly is installed.

13. The screen according to claim 12, wherein each baffle has at least an opening side, a second side opposite the opening side, and two sides defined by a notch in the body and positioned between the opening side and the second side.

14. The screen according to claim 12, wherein As the screen is inserted into the hole in the substrate, the size of the shutter changes.

15. The screen according to claim 14, wherein, each of the plurality of shutters includes an inner side and an outer side, and a cam on the outer side of the shutter.

16. The screen according to claim 12, wherein, the anchor screen assembly includes an anchor rod inserted into the screen, and as the anchor rod is inserted into the screen, the size of the shutter changes.

17. The screen according to claim 16, wherein, each of the plurality of shutters includes an inner side and an outer side, and a cam on the inner side of the shutter.

18. The screen according to claim 12, wherein, each of the plurality of shutters has at least a hinged side, a free end opposite the hinged side, and two free sides between the hinged side and the free end.

19. The screen according to claim 18, wherein, each of the plurality of shutters includes a hinged side perpendicular to the central axis of the screen, such that each shutter opens along the axial length of the screen.

20. The screen according to claim 18, wherein, the screen includes a plurality of panels interleaved with the plurality of shutters, and some of the panels and some of the shutters include orifices.

Images