Modular adhesive anchor screen

Abstract

The modular adhesive insert for construction anchors allows controlled adhesive distribution within pre-formed holes, allowing multiple insert screens to be joined together to create screens of various sizes. The insert includes an end cap and an abutment structure. The insert includes a housing having a first end and a second end, with a first set of connecting structures at the first end and a second set of connecting structures at the second end. The housing includes multiple shutters between the first end and the second end, each of which can vary the size of its corresponding opening.

Description

[Technical Field]

[0001] (Claim for priority) This application claims priority to U.S. Patent Application No. 18 / 466,302, entitled "MODULAR ADHESIVE ANCHOR SCREEN," filed September 13, 2023, which claims priority to U.S. Provisional Patent Application No. 63 / 407,280, entitled "MODULAR ADHESIVE ANCHOR SCREEN," filed September 16, 2022, both of which are incorporated by reference in their entireties.

[0002] Windowed sleeves are used in various cases when installing construction adhesive anchors into walls or other foundation materials. The adhesive anchor should be completely surrounded by the adhesive or mortar, and the adhesive should completely fill the space between the anchor and the wall of the hole. Currently, a screen tube or plastic screen retains the adhesive and prevents it from falling into hollow voids in the base material during installation. When the anchor is inserted into the screen, the adhesive flows out of the screen or tube and bonds with the solid portion of the base material.

[0003] Windowed sleeves are also useful when installing anchors in hollow masonry, such as brick, concrete block, or concrete masonry units (CMUs), or in masonry with one or more internal open spaces. Screen-type inserts help keep the adhesive close to the anchor. Installing anchors in masonry with internal voids creates additional challenges to adhesive insertion. Not only can the adhesive flow too far into the hole, away from the anchor and drip off the upper surface of the hole, but it can also leave the anchor entirely and actually fall into the void.

[0004] Concrete blocks are generally cement and / or concrete formed into rectangular cells. Concrete blocks and concrete masonry units are hollow rectangular blocks rather than solid rectangular blocks. A typical concrete block or CMU is generally a rectangular block with all four sides or shells surrounding a void that is open outwardly through the top and bottom surfaces. Wider concrete blocks and concrete masonry units may be formed with webs that divide the void and span the distance from one side of the block to the other. The walls of a concrete block or CMU can be narrow or thick, depending on the strength required of the block.

[0005] One challenge with using windowed sleeves is the need for different window sizes for different types of adhesives. Current plastic screens are very expensive due to the multiple components and assembly process. Limited mesh tube suppliers also create potential supply chain disruptions, and screens are only available in limited lengths due to low volumes, requiring new molds to be made for each length. Thus, due to the limited length selection, contractors may be forced to purchase windowed sleeves or screens that are not optimized for their application length. Additionally, different adhesives typically require different window sizes due to the different adhesive chemistries, including different particle sizes and viscosities. Summary of the Invention

[0006] This technology relates to improved connections between anchors or fastening elements and parent materials such as masonry, cement, or stone using adhesive or mortar compounds to create the connection, and more particularly to providing improved fenestrated or porous sleeve-shaped members for use with anchors and adhesives.

[0007] One general aspect includes a modular adhesive insert for a construction anchor, the insert comprising a first plastic insert with a housing having a first end and a second end, the first end including a first set of connecting features, the second end including a second set of connecting features, the first set of connecting features adapted to connect to the second set of connecting features of a second plastic sleeve, and a body including a plurality of shutters between the first end and the second end.

[0008] An example implementation may include the insert, wherein the plastic insert includes multiple windows that correspond to the shutters. An example implementation may include the insert further including a first end cap and a second end cap, wherein the first set of connecting structures are adapted to connect to the first end cap and the second set of connecting structures are adapted to connect the second end cap to the plastic sleeve. An example implementation may include the insert, wherein each shutter has at least an open side, a second side opposite the open side, and two sides defined by recesses in the housing and positioned between the open side and the second side. An example implementation may include the insert, wherein each shutter 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. An example implementation may include the insert, wherein each of the multiple shutters includes the hinged side perpendicular to a central axis of the screen such that each shutter opens along the axial length of the screen. An implementation may include the insert, wherein each of the plurality of shutters includes the hinged side parallel to the central axis of the screen so that each shutter opens along the radial length of the screen. An implementation may include the insert, 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. An implementation may include the insert, 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. An implementation may include the insert, wherein the screen includes a plurality of panels interleaved with the plurality of shutters, some of the panels and some of the shutters including windows. An implementation may include the insert, wherein the first set of connecting structures may include posts. An implementation may include the insert, wherein the second set of connecting structures may include notches.

[0009] Another aspect includes a modular adhesive screen for an anchor insert assembly for use in a hole in a base material, the screen including 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 cylindrical shape defined by one or more outer surfaces including a plurality of shutters, each of the shutters configured to vary an opening associated with the shutter when the insert assembly is installed.

[0010] An example implementation may include the screen, wherein the shutters change size as the screen is inserted into the hole. An example implementation may include the screen, 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. An example implementation may include the screen, wherein the anchor insert assembly includes an anchor rod inserted into the screen, wherein the shutters change size as the anchor rod is inserted into the screen. An example implementation may include the screen, 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. 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. An example implementation may include the screen, wherein each of the plurality of shutters includes the hinged side perpendicular to a central axis of the screen such that each shutter opens along an axial length of the screen. The screen includes a plurality of panels interleaved with the shutters, some of the panels and some of the shutters including windows.

[0011] This Summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This Summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining 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. [Brief explanation of the drawings]

[0012] Aspects of the present disclosure are illustrated by way of example and not limitation in the accompanying drawings, in which like reference numerals indicate like elements and in which:

[0013] FIG. 1 is a perspective view of a conventional aperture screen used with adhesive anchors.

[0014] FIG. 2A is a cross-sectional front view of the insert of FIG. 1 filled with adhesive.

[0015] FIG. 2B is a cross-sectional front view of the insert of FIG. 1 filled with adhesive.

[0016] FIG. 2C is a cross-sectional front view of the insert of FIG. 1 filled with adhesive and inserted into two opposing shells of a hollow concrete block.

[0017] Figure 2D is a front cross-sectional view of the insert of Figure 2. The insert of Figure 1 is filled with adhesive and inserted into two opposing shells of the anchor-inserted substrate, causing the adhesive to extrude through the openings in the insert and bond with the shells of the concrete block.

[0018] FIG. 2E is a cross-sectional front view of the insert of FIG. 1 filled with adhesive and inserted into one shell of a hollow concrete block.

[0019] FIG. 3A is a perspective view of a first embodiment of an adhesive screen for use with a modular adhesive anchor insert in accordance with the present technology.

[0020] FIG. 3B is a plan view of a first embodiment of an adhesive screen and associated end caps that comprise a modular adhesive anchor insert in accordance with the present technology.

[0021] FIG. 3C is a cross-sectional view taken along line 3C-3C of FIG. 3A.

[0022] FIG. 3D is a partially enlarged cross-sectional view taken along line 3D-3D in FIG. 3D.

[0023] FIG. 3E is a view taken along line 3E-3E of FIG. 3A.

[0024] FIG. 4A is a perspective view of a second embodiment of an adhesive screen for use with a modular adhesive anchor insert in accordance with the present technology.

[0025] FIG. 4B is a top view of a second embodiment of an adhesive screen portion of a modular adhesive anchor insert in accordance with the present technology.

[0026] FIG. 4C is a view taken along line 4C-4C of FIG. 4A.

[0027] FIG. 4D is a perspective cross-sectional view taken along line 4D-4D in FIG. 4A.

[0028] FIG. 4E is a partially enlarged cross-sectional view taken along line 4E-4E of FIG. 4D.

[0029] FIG. 5 is a perspective cross-sectional view of an anchor entering the adhesive anchor embodiment of FIGS. 4A-4E, illustrating the movement of the axial shutter.

[0030] FIG. 6A is a perspective view of a third embodiment of an adhesive screen for use with a modular adhesive anchor insert in accordance with the present technology.

[0031] FIG. 6B is a top view of a third embodiment of an adhesive screen portion of a modular adhesive anchor insert in accordance with the present technology.

[0032] FIG. 6C is a view taken along line 6C-6C of FIG. 6A.

[0033] FIG. 6D is a view taken along line 6D-6D of FIG. 6A.

[0034] FIG. 6E is a partially enlarged cross-sectional view taken along line 6E-6E of FIG. 6D.

[0035] FIG. 6F is a view taken along line 6F-6F of FIG. 6A.

[0036] FIG. 7A is a perspective view of a fourth embodiment of an adhesive screen for use with a modular adhesive anchor insert in accordance with the present technology.

[0037] FIG. 7B is a top view of a fourth embodiment of an adhesive screen portion of a modular adhesive anchor insert in accordance with the present technology.

[0038] FIG. 7C is a view taken along line 7C-7C of FIG. 7A.

[0039] FIG. 7D is a view taken along line 7D-7D of FIG. 7A.

[0040] FIG. 7E is a partially enlarged cross-sectional view taken along line 7E-7E of FIG. 7D.

[0041] FIG. 8A is a perspective view of a fourth embodiment of an adhesive screen for use with a modular adhesive anchor insert in accordance with the present technology.

[0042] FIG. 8B is a top view of a fourth embodiment of an adhesive screen portion of a modular adhesive anchor insert in accordance with the present technology.

[0043] FIG. 8C is a view taken along line 8C-8C of FIG. 8A.

[0044] FIG. 8D is a view taken along line 8D-8D of FIG. 8A.

[0045] FIG. 8E is a cross-sectional view taken along line 8E-8E of FIG. 8A.

[0046] FIG. 8F is a partially enlarged cross-sectional view taken along line 8F-8F of FIG. 8D.

[0047] FIG. 9A is a cross-sectional view of the anchors of FIGS. 8A-8F inserted into two opposing shells of a hollow concrete block.

[0048] FIG. 9B is a top view of the anchors of FIGS. 8A-8F inserted into two opposing shells of a hollow concrete block.

[0049] FIG. 10A is a perspective view of a fourth embodiment of an adhesive screen for use with a modular adhesive anchor insert in accordance with the present technology.

[0050] FIG. 10B is a top view of a fourth embodiment of an adhesive screen portion of a modular adhesive anchor insert in accordance with the present technology.

[0051] FIG. 10C is a view taken along line 10C-10C of FIG. 10A.

[0052] FIG. 10D is a view taken along line 10D-10D of FIG. 10A.

[0053] FIG. 10E is a perspective cross-sectional view taken along line 10E-10E of FIG. 10A.

[0054] FIG. 11A is a cross-sectional insertion view of the anchor of FIGS. 10A-10E.

[0055] FIG. 11B is a top view of the anchors of FIGS. 10A to 10E inserted into two opposing shell-shaped hollow concrete blocks.

[0056] FIG. 12A is a perspective view of a fourth embodiment of an adhesive screen for use with a modular adhesive anchor insert in accordance with the present technology.

[0057] FIG. 12B is a top view of a fourth embodiment of an adhesive screen portion of a modular adhesive anchor insert in accordance with the present technology.

[0058] FIG. 12C is a view taken along line 12C-12C of FIG. 12A.

[0059] FIG. 12D is a view taken along line 12D-12D of FIG. 12A.

[0060] FIG. 12E is a perspective cross-sectional view taken along line 12E-12E of FIG. 12A.

[0061] FIG. 12F is a partially enlarged cross-sectional view taken along line 12F-12F in FIG. 12A.

[0062] FIG. 12G is a partially enlarged cross-sectional view taken along line 12G-12G of FIG. 12B.

[0063] FIG. 13A is a perspective view of a fourth embodiment of an adhesive screen for use with a modular adhesive anchor insert in accordance with the present technology.

[0064] FIG. 13B is a top view of a fourth embodiment of an adhesive screen portion of a modular adhesive anchor insert in accordance with the present technology.

[0065] FIG. 13C is a view taken along line 13C-13C of FIG. 13A.

[0066] FIG. 13D is a view taken along line 13D-13D of FIG. 13A.

[0067] FIG. 13E is an enlarged view of the end shown in FIG. 13A. DETAILED DESCRIPTION OF THE INVENTION

[0068] Broadly described, the present technology provides an improved insert for use in adhesively securing construction anchors within a base material. The insert is a modular adhesive insert for construction anchors that allows multiple insert screens to be attached to each other to create screens of various sizes. The insert is fabricated using a relatively simple injection molding process, providing different insert variations that can be used with multiple types of adhesives. The insert includes an end cap and also includes abutment structures (or a 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 connecting structures, such as posts, and the second end including a second set of connecting structures, such as notches. The first set of connecting structures is adapted to connect the end cap to a plastic sleeve, and the second set of connecting structures is adapted to connect the abutment structure portion to the plastic sleeve. The first set of connecting structures is further adapted to connect the first end of the plastic insert to the second set of connecting structures on the second plastic sleeve.

[0069] Figures 1 and 2A-2E show an apparatus and method for forming a connection between a base material 1 and an anchor 2 by means of an adhesive 3. Figures 1 and 2A-2E are reproduced from U.S. Patent No. 7,837,018.

[0070] The base material 1 is first formed with holes 4 therein. To facilitate the connection between the anchors 2 and the base material 1, a porous screen 5 is used. The screen 5 is received by the holes 4 in the base material 1. The screen 5 is formed from a frame 7 and a tube 7. The distal end 12 of the frame 7 is inserted into the hole first, and the trailing or anchor-receiving end 15 is visible when the screen 5 is inserted into the hole 4. The leading axial section 13 of the frame 7 is formed with a window 14, and the tube 7 has a window 17 formed therein.

[0071] The tube 7 is received by the frame 7 so that at least a portion of the tube 7 overlaps a portion of the leading axial section 13. Because the leading axial section 13 has a window 14 and the tube 7 has a window 17, fluid material disposed in the interior area 8 surrounded by the frame 7 and in the leading axial section 13 can be forced radially outward through the window 17 in the tube 7 and the window 14 in the leading axial section 13 of the frame 7 to reach the outside 9 of the frame 7.

[0072] 2A and 2B, a squirt gun is typically used to fill the adhesive into the barrel 7, and the screen 5 can be filled, if desired, using a cap 39 having an opening to receive the nozzle 41 of the squirt gun in place. The adhesive 3 is disposed within the interior area 8 of the frame 7, and the adhesive 3 is forced out of the frame 7 through windows 17 in the barrel 7 and windows 14 in the axial section 13 of the frame 7.

[0073] As shown in Figures 2C and 2D, when the matrix comprises a concrete masonry unit or other hollow matrix 30 and the user desires to install anchors in both the first web 31 and the second web 33 of the matrix 30, the screen 5, when filled with adhesive 3, needs to be rigid enough to be inserted into the first hole 4 formed in the first web 31 of the hollow matrix 30, to extend throughout the interior void 32 of the hollow matrix 30, and to be received in the second window formed in the opposing second web 33 of the hollow matrix 30.

[0074] 2C-2E, the screen has an outer diameter 35 selected to cooperate with the diameter of the holes 4 or windows in the matrix 1 or the first and second holes 4, 34 in the first and second webs 31, 33 of the hollow matrix 30. When the fastener or anchor 2 is inserted into the cylindrical screen 5, adhesive 31s disposed within the screen 5 is prevented from axially exiting the distal end 12 of the screen 5 and is forced to exit radially through the windows 14, 17, and 19 in the screen 5, as shown in FIGS.

[0075] As shown in Figure 2D, frame 7 is formed with an abutment structure 37 at its anchor-receiving end 15 that determines the depth to which screen 5 can be driven or inserted into hole 4. This abutment structure 37 may be formed by providing an annular flange at anchor-receiving end 15, or, in embodiments as shown in Figure 1, by providing a pair of oppositely disposed flanges 38 at anchor-receiving end 15 of frame 7.

[0076] With respect to adhesive 3, the windows 17 in the mesh tube 7 and the windows 19 in the second axial section 18 are designed for use with a particular adhesive 3. The properties of the adhesive 3 determine the size of the windows 17 in the mesh tube 7 and the size of the windows 19 in the second axial section 18 of the frame 7.

[0077] For a hollow preform, such as preform 30, the preform is prepared by forming aligned holes 4 and 34 in a first web 31 and a second web 33 of hollow preform 30. A drill is used to form a first hole 4 in first web 31 of preform 30. The drill is then inserted further to extend throughout the interior void 32 of hollow preform 30, and a second hole 34 is blind drilled in the opposing second web 33 of hollow preform 30.

[0078] The solutions shown in Figures 1-2E require multiple components and assemblies, and have therefore become very expensive over the years, which is contrary to the purpose for which they were intended. Additionally, each different adhesive requires a different screen mesh due to differences in the adhesive chemistries. The modular adhesive anchor embodiments disclosed herein address these and other challenges.

[0079] 3A-3D show a first embodiment of a modular adhesive-anchored screen 300 in accordance with the present technology. As shown in FIG. 3B, the adhesive-anchored screen 300 is part of an insert 350 that includes the screen 300, end caps 330, and abutment structures 340. The screen 300 includes a first set of connecting structures including notches 310 that mate with posts 311 on the abutment structures 340 to secure the abutment structures 340 within the interior of the screen 300. The screen 300 includes a second set of connecting structures including posts 320 that mate with notches 325 on the end caps 330 to secure the end caps 330 onto the collars 322 of the screen 300. The notches 310 can be used to connect with the posts 320 to connect multiple screens 300 in series to form inserts of various sizes.

[0080] Adhesive anchor screen 300 is a modular, injection-molded, plastic adhesive screen designed to work with multiple types of adhesives. Screen 300 includes variable-sized mesh windows 312 and 314 (FIG. 3 does not label every window or row of windows to avoid obscuring the illustration of the screen). In one embodiment, the windows are circular and have varying dimensions. For example, row 314a of window 314 may have a diameter of 0.015 inches, and row 312a of window 312 may have a diameter of 0.010 inches. In one embodiment, the diameters of each row of windows 312a and 314b alternate between adjacent rows and are repeated across the surface of the screen. In alternative embodiments, different sized windows are positioned in any number of different patterns within the same row (i.e., each row need not all have the same sized windows). In alternative embodiments, three or more different diameter windows are used. Each window may have a different cross-sectional opening shape. For example, the windows may be circular, rectangular, triangular, oval, star-shaped, or other geometric shapes. Additionally, the spacing and pattern of the windows may vary.

[0081] As shown in Figure 3C, the screen 300 has a generally circular cross-section. The interior of the screen 300 includes support ribs 350 between a leading or first end 302, which is inserted first into a hole, and a trailing, anchor-receiving or second end 304. In one embodiment, eight support ribs are provided on the interior of the screen 300. More or fewer ribs may be used.

[0082] To create a connection using the anchor, adhesive 3 is placed within the interior area of ​​the screen 300 with the abutment structure 340 and end cap 330 attached after insert 350 is placed within the matrix. Insertion of anchor 2 into insert 350 (screen 300 with abutment structure 340 (or second end cap) and first end cap 330 attached) before the adhesive sets forces the adhesive out of the screen 300 through windows 312 and 314. Sufficient adhesive is provided within the insert so that it completely surrounds and fully contacts the portion of anchor 2 inserted into the screen 300. The adhesive is forced out of the screen 300 and contacts the hole in matrix 1, and anchor 2 is bonded to the matrix through contact with the adhesive as the adhesive sets.

[0083] Varying opening size, window spacing, and window mesh pattern allows screen 300 to be used with adhesives having different viscosities and / or particle sizes that work within the same screen. Further variations are possible by varying the window shape (round, rectangular, triangular, oval, star-shaped, etc.) and spacing / pattern.

[0084] 4A-4E show a second embodiment of a screen 400 for use in a modular adhesive insert. The screen 400 includes a plurality of inwardly actuated axial shutters 414 that allow adhesive to extrude as anchors push them open during installation. (The shutters are referred to as "axial" because they actuate outward along the axis (A) of the anchor inserted into the screen 400.) It should be understood that the screen 400 may also be fitted with an end cap 330 at a first end 402 and an abutment structure 340 at a second end 404 in a manner similar to that shown for the screen 300 in FIG. 3B. The first end 402 includes a first set of connecting structures with posts 410 that allow for attachment of an end cap, and a second set of the first set of connecting structures with notches 420 at the second end 404 that allow for connection of abutment structures and / or allow multiple screens 400 to be connected to one another, thereby allowing multiple sizes of screen to be used to create inserts of different sizes.

[0085] 4C-4E, each individual shutter 414 includes an angled cam or cam 416 that includes a low end 416a closer to the trailing second end 404 of the screen 400 and a high end 416b closer to the leading first end. As best shown in FIG. 4E, each shutter has a free end 415 and a hinged lip 413 connected to the main body of 414. The angled cam 416 pushes the shutter 414 open when an anchor is inserted into the interior of the screen 400.

[0086] As shown in FIGS. 4A and 4C , the screen 400 has a generally hexagonal cross-section defined by six sides 405, each containing an axial shutter 414. In various embodiments, more or fewer sides may be used. The shutter sides are separated by support ribs 450 between a leading or first end 402, which is inserted first into the hole, and a trailing, anchor-receiving second end 404. In one embodiment, six support ribs are provided, but more or fewer ribs and more or fewer sides with axial shutters may be used. In other embodiments, some sides need not contain shutters and may be interleaved with sides that contain shutters.

[0087] FIG. 5 illustrates anchor 2 being inserted into screen 400 without any adhesive (note that adhesive will be present during installation of the anchor). Each angled cam 416 engages with the body of the anchor (in the case of FIG. 5, the threads of a fastener). When the anchor engages with the cams 416 of shutter 414, the shutter rotates about hinged edge 413, forcing its free end 415 outward, as shown at 505, allowing any adhesive within the screen to be extruded from the screen into the matrix (or open space) where the anchor is installed. The disengaged shutter remains closed, as shown at 510 in FIG. 5, preventing adhesive from being extruded in the portions of the screen not reached by the anchor.

[0088] 6A-6F illustrate another embodiment of a screen 600 that can be used with modular adhesive anchors. The screen 600 is formed with a plurality of inwardly actuated radial shutters 614a and 614b (the shutters are termed "radial" because they act outward, perpendicular to the axis of the anchors inserted into the screen 600 and along the outer radius of the screen 600). The shutters are generally planar and arranged into six sides 605. More or fewer shutter sides may be used. Each side is separated by a support rib 650. Again, not all instances of the shutters 614 are numbered to avoid obscuring the illustration in the figures. FIG. 6A is a perspective view of this embodiment, and FIG. 6B is a top view of this embodiment. It should be understood that screen 600 may also be fitted with end caps 330 at first end 602 and abutment structures 340 at second end 604 in a manner similar to that shown for screen 300 in Figure 3B. End 602 includes a first set of connecting structures comprising posts 620 to allow for attachment of the end caps, and a second set of connecting structures comprising notches 610 at second end 604 to allow for connection of the abutment structures and / or to allow multiple screens 600 to be connected to one another.

[0089] As shown in FIGS. 6A-6E, the shutters 614a and 614b have two different sizes and configurations. In an alternative configuration, the shutters are the same size and configuration. The shutters 614a are generally smaller than the shutters 614b. Each of the shutters 614a is positioned opposite the corresponding shutter 614b on one side of the screen 600, and alternates along an axial row on one side of the screen 600, so that the shutters are arranged in an interleaved manner on each side of the screen 600. The screen 600 includes six sides, although more or fewer sides may be used. As shown in FIGS. 6E and 6F, each shutter includes a hinge side and three free sides. The shutter 614a includes a single hinge 613a opposite a free end 615a having two free sides 617a and 618a. The shutters 614b include two hinges 613b opposite a free end 615b having two free sides 617a and 618a. Each shutter 614a and 614b rotates about its one or more hinges as anchors enter the interior of the screen and engage angled cams 616a and 616b on the respective shutters 614a and 614b. This allows adhesive within the interior of the screen to exit openings formed by the hinge movement and be forced out of the screen and into the matrix where the anchors are located.

[0090] As shown in FIGS. 6C and 6D , the first end 602 includes a web 625 formed by multiple, generally triangular fingers 626, with openings 627 at the ends of the web 625. This allows multiple screens to be connected when anchors are to be installed, for example, via multiple cinder blocks. As in the previous embodiment, the shutters open to allow adhesive flow as the anchors are inserted, while closed shutters allow less adhesive flow (or no adhesive flow at all). Additionally, the shutters prevent excess adhesive from prematurely flowing out the far end of the screen, where pressure is highest until the rod is inserted to its full depth. The inner shutter cams can be the same height / geometry or different heights / geometry throughout the length of the screen. This allows adhesives with different viscosities and / or particle sizes to work within the same screen, controlling adhesive flow throughout the length of the screen.

[0091] The screen 600 has a generally hexagonal cross-section defined by six sides, each containing a radial shutter 614a and 614b. The shutter sides are separated by a support rib 650 between the leading, distal end 602, which is inserted first into the hole, and the trailing, or anchor-receiving, end 604. In one embodiment, six support ribs are provided, although more or fewer ribs and more or fewer sides with radial shutters may be used. In other embodiments, some sides need not contain radial shutters and may be interleaved with sides that contain radial shutters.

[0092] 7A-7F illustrate another embodiment of a screen 700 that can be used with modular adhesive anchor inserts. FIG. 7A is a perspective view of this embodiment, and FIG. 7B is a plan view of this embodiment. The screen 700 is formed with a plurality of axial shutters 714 arranged in six rows on the screen 700 and actuated inwardly, with each row separated by a support rib 750. Not all instances of the shutters are numbered to avoid obscuring the illustration. It should be understood that the screen 700 can also be fitted with an end cap 330 at a first end 702 and an abutment structure 340 at a second end 704 in a manner similar to that shown for the screen 300 in FIG. 3B. Additionally, the end 702 can engage with the end 704 to connect multiple pieces of the screen together. The screen 700 includes a first set of connecting structures comprising posts 710 on the end 702 that mate with the end cap 330, and a second set of connecting structures comprising notches 720 on the end 704 that mate with the abutment structure 340 posts 710.

[0093] As shown in Figures 7B-7E, the shutters 714 are approximately equal in size, and each shutter includes a hinge side and three free sides. The shutters 714 include a single hinge 713 opposite a free end 715 having two free sides 716 and 718. Each shutter 714 rotates about its hinge as anchors enter the interior of the screen and engage angled cams 716 on the respective hinge 713. This allows adhesive within the interior of the screen to exit openings formed by the hinge movement and be forced out of the screen and into the matrix where the anchors are located.

[0094] The screen 700 has a generally hexagonal cross-section defined by six sides, each containing a radial shutter 714. The shutter sides are separated by a support rib 750 between the leading, distal end 702, which is inserted first into the hole, and the trailing, or anchor-receiving, end 704. In one embodiment, six support ribs are provided, although more or fewer ribs and more or fewer sides with radial shutters may be used. In other embodiments, some sides need not contain radial shutters and may be interleaved with sides that contain radial shutters.

[0095] FIGS. 8A-8F illustrate another embodiment of a screen 800 that can be used with adhesive anchor inserts. FIG. 8A is a perspective view of this embodiment, and FIG. 8B is a plan view of this embodiment. The screen 800 is formed with a plurality of axial shutters 814 arranged in eight rows on the screen 800 and actuated outward. Not all instances of the shutters are numbered to avoid obscuring the illustration. An end cap 827 is shown attached to the leading first end 802 of the screen 800. The screen 800 can also be fitted with an abutment structure at the second end 804 in a manner similar to that shown for screen 300 in FIG. 3B. The screen 800 includes a connecting structure comprising 820 on end 802 and a notch 810 on end 804 that mates with post 820, or a corresponding notch on the end cap 827 of the screen 800, as shown. In some implementations, end 802 may engage end 804 to connect multiple ones of the screens together using notches 810 and posts 820.

[0096] 8B-8E, the shutters 814 are approximately equal in size, and each shutter includes a cam 816, a hinge side 813, and three free sides 815, 817, and 818. The shutter 814 includes a single hinge side 813 opposite a free end 815 having two free sides 818 and 818, thereby defining each shutter as having a generally rectangular shape in the axial direction of the screen 800. Each shutter 814 rotates about its hinge as the screen enters a hole formed in the matrix or matrix wall into which it is inserted. In this way, during installation, adhesive within the screen is extruded only in areas adjacent to the open areas in the matrix.

[0097] Eight shutters 814 are disposed around the circular cross-section (FIG. 8E), forming a ring of shutters around the cross-section. Each of the eight shutters aligned within one of the five rings of shutters near the first end 802 around the screen 800 is separated by a support ring 852 along approximately half of the screen 800 adjacent the first end 802. In an embodiment, the first five rings of shutters are separated by a support ring 852, while the last four rings of shutters are not. Each shutter within a ring of shutters is separated by either a support rib 850 or a support rib 855 between the leading, distal end 802, which is inserted first into the hole, and the trailing, or anchor-receiving, end 804. In one embodiment, eight support ribs 850 and 855 (four of each) are provided, although more or fewer ribs and more or fewer shutters within each ring may be used. In other embodiments, some sides need not include shutters and may be interleaved with sides that do include shutters.

[0098] 9A and 9B illustrate the opening of the shutters and the extrusion of adhesive. FIG. 9A illustrates an assembled insert 890 including the screen 800 with the end caps 827 and abutment structures 828 attached. The insert 890 is inserted into a first hole 944 formed in a first web 931 of a hollow matrix 930, extends across the interior void 910 of the hollow matrix 930, and is received in a second window formed in an opposing second web 932 of the matrix 930. As shown in 902 and 904 of FIG. 9A , the shutters 814 in holes 944 and 945 are open, and the cams 816 of any shutters in those holes engage the sides of the holes 944 and 945, forcing each shutter to rotate inwardly into the screen 900 about its hinge side 813. This allows adhesive to extrude from the open shutters in the solid portions of web 931 and web 932 (in region 902) to bond with the solid webs of matrix 930, and also extend slightly adjacent to webs 931 and 932 to maximize bonding with the solid material. At 906, the shutters in the internal void 910 in the matrix are closed, preventing or limiting extrusion of adhesive in most of internal void 910. As a result, when anchor 2 is inserted into screen 800, extrusion occurs from the open shutters in web 931 and web 932 in region 902 adjacent to each of webs 931 and 932. This is illustrated in Figure 9B, which shows the installed screen 800 and abutment structure 828 (and end caps in web 932). As shown in FIG. 9B, extrusion of adhesive within gaps 910a and 910b occurs adjacent to respective webs 931a, 931b, 932a, and 932b (e.g., at 922 and 926, for example) when anchor 2 is fully inserted into screen 800.Thus, the shutter 814 is actuated outward to open only in the solid portions of the base material, allowing more adhesive to flow where the base material is solid, and a closed shutter positioned in a hollow section of the base material allows less adhesive (or no adhesive) to flow.

[0099] 10A-10E illustrate another embodiment of a screen 1000 that can be used with adhesive anchor inserts. FIG. 10A is a perspective view of this embodiment, and FIG. 10B is a plan view of this embodiment. The screen 1000 is formed with a plurality of radial shutters 1014 arranged in eight rows on the screen 1000 and actuated outward. Not all instances of the shutters are numbered to avoid obscuring the illustration. Each of the eight shutters aligned in one of four rings of shutters around the screen 1000 near the first end 1002 is separated by a support ring 1052 along approximately half of the screen 1000 adjacent the first end 1002. In this embodiment, the first four rings of shutters are separated by the support ring 1052, while the last four rings of shutters are not separated by a support ring. An end cap 1027 is shown attached to the leading first end 1002 of the screen 1000. The screen 1000 can also be fitted with an abutment structure at the second end 1004 in a manner similar to that shown for the screen 300 in FIG. 3B. The screen 1000 includes a connecting structure comprising a post 1020 on the end 1002 and a notch 1010 in the end 1005 that mates with the post 1020, or a corresponding notch on the end cap 1027 of the screen 1000, as shown. In some implementations, the end 1002 can engage the end 1004 to connect multiple ones of the screens together using the notch 1010 and the post 1020.

[0100] 10B-10E, the shutters 1014 are approximately equal in size, and each shutter includes a cam 1016, a hinge side 1013, and three free sides 1015, 1017, and 1018. The shutter 1014 includes a single hinge side 1013 opposite a free end 1015 having two free sides 1018 and 1019, thereby defining each shutter as having a generally rectangular shape in the axial direction of the screen 1000. Each shutter 1014 rotates about its hinge as the screen enters a hole formed in the matrix or matrix wall into which it is inserted. In this way, during installation, adhesive within the screen is extruded only in areas adjacent to the open areas in the matrix.

[0101] Eight shutters 1014 are mounted around the circular cross-section (FIG. 10E), forming a ring of shutters around the cross-section. Each hinge side 1013 is attached to a support rib 1050. Each free side 1015 faces one of four internal support bosses 1052. Each of the eight shutters aligned in the ring around the screen 1000 is separated by a support ring 1052. Four support rings 1052 are mounted between the leading end 1002 and approximately halfway toward the rear end 1004 of the screen 1000. The support ribs 1050 and 1052 extend between the leading, distal end 1002, which is inserted first into the hole, and the trailing, or anchor-receiving, end 1004. In one embodiment, eight support ribs 1050 and 1052 (four of each) are provided, although more or fewer ribs and more or fewer shutters in each ring may be used. In other embodiments, some sides need not include shutters and may be interleaved with sides that do include shutters.

[0102] 11A and 11B are similar to FIGS. 9A and 9B and illustrate the opening of the shutter and the extrusion of adhesive using the screen 1000 in the insert 1150. FIG. 11A illustrates the insert 1150 with the screen 1000 and the attached end cap 1027 and abutment structure 1028. The insert 1150 is inserted into a first hole 1144 formed in a first web 1131 of a hollow matrix 1130, extends across the interior void 1110 of the hollow matrix 1130, and is received in a second window formed in an opposing second web 1132 of the matrix 1130. 11A at 1102, the shutters 1014 in holes 1144 and 1145 are open, and the cams 1016 of any shutters in that hole engage the sides 1144 and 1145 of the hole, forcing each shutter to rotate about its hinge side 1013 toward the inside of the screen 1100. This allows adhesive to extrude from the open shutters in the solid portions of webs 1131 and 1132 to bond with the solid web of matrix 1130, and also extend slightly adjacent to webs 1131 and 1132 to maximize bonding with the solid material. At 1106, the shutters in gaps 1110a and 1110b are closed, preventing or inhibiting extrusion of adhesive in most of web gaps 1110a and 1110b. As a result, when anchor 2 is inserted into screen 1000, extrusion occurs adjacent to each web 1131 and 1132 and in region 1102 as the shutter opens in this region. This is illustrated in Figure 11B, which shows screen 1000 and attached abutment structure 1028 (and end cap in web 1132). As shown in Figure 11B, extrusion of adhesive in voids 1110a and 1110b occurs adjacent to each web 1131a, 1131b, 1132a, and 1132b when anchor 2 is fully inserted into screen 1000.Thus, shutters 1114 are actuated outwardly to open only in the solid portions of the base material, allowing more adhesive to flow where the base material is solid, and closed shutters positioned in hollow sections of the base material allow less adhesive to flow (or no adhesive to flow at all). Again, the shutter at 1124 is closed so that adhesive is extruded adjacent the walls of webs 1131 and 1132, for example at 1122 and 1126.

[0103] 12A-12F illustrate another embodiment of a screen 1200 that can be used with adhesive anchor inserts. FIG. 12A is a perspective view of this embodiment, and FIG. 12B is a plan view of this embodiment. The screen 1200 is formed with both a plurality of radial shutters 1214 arranged in four rows on the screen 1200 and actuated outward, and a plurality of windows 1224, 1225, and 1228. The windows are provided in both the radial shutters and in the stationary portion of the screen 1200 so that the windows and shutters are aligned. Not all instances of shutters and windows are numbered to avoid obscuring the illustration. Sections of the shutters 1214 are separated by a support ring 1250. Each of the radial shutters 1214 has a window 1224. A stationary wall panel 1226 has a window 1225. An end cap 1227 defines a window 1228. Two panels 1226 are adjacent to each radial shutter 1214, separated by one of four support bosses 1252. The end cap 1227 is shown attached to the leading first end 1204 of the screen 1200. In this embodiment, the end cap 1227 is integrally formed with the remainder of the screen 1200 through a plastic molding process. The screen 1200 may also be fitted with an abutment structure at the second end 1202 in a manner similar to that shown for screen 300 in FIG. 3B. The screen 1200 includes a connecting structure comprising a post 1220 on the end 1204 and a notch 1210 on the end 1202 that mates with the post 1220, or a corresponding notch on the end cap 1227 of the screen 1200, as shown. In some implementations, end 1202 may engage end 1204 to connect multiple ones of the screens together using notches 1210 and posts 1220.

[0104] As shown in FIGS. 12B-12E , the shutters 1214 are approximately equal in size, and each shutter includes a cam 1216, a hinge side 1213, and three free sides 1215, 1217, and 1218. The shutter 1214 includes a single hinge side 1213 opposite a free end 1215 having two free sides 1218 and 1218, thereby defining each shutter as having a generally rectangular shape in the axial direction of the screen 1200. Each shutter 1214 rotates about its hinge 1213 toward the interior of the screen 1200 as the screen 1200 enters a hole formed in the matrix or matrix wall into which it is inserted. In this way, adhesive within the screen during installation is extruded along the entire length of the screen due to the open shutters, but more adhesive is extruded in the areas adjacent to any web walls and within the matrix wall.

[0105] Four shutters 1214 are provided around the circular cross section (FIG. 12E). Each hinge side 1213 is attached to a support rib 1250. Each free side 1215 faces one of four internal support bosses 1252. Eight shutters are aligned in rings around the screen 1200 and separated by support rings 1252. The four support rings 1252 are provided between the leading end 1204 and approximately halfway toward the trailing end 1202 of the screen 1200. The support ribs 1250 and 1252 extend between the leading, distal end 1204, which is inserted first into the hole, and the trailing, or anchor-receiving, end 1202. In one embodiment, eight support ribs 1250 and 1255 (four each) are provided, although more or fewer ribs and more or fewer shutters may be used within each ring. In other embodiments, some sides need not include shutters and may be interleaved with sides that do include shutters.

[0106] As noted above, the embodiment of Figures 12A-12F includes not only a stationary window but also an axial shutter that matches the window. This embodiment offers the advantage of being compatible with different drilling techniques in the field, which can result in slightly different diameter drilled holes in the matrix. Different diameter holes in the matrix affect how far the shutter can open; in the case of holes that are too large, the shutter may not open significantly at all, resulting in very little adhesive extruding from the screen. The addition of stationary holes allows some adhesive to ooze throughout the length of the screen, even when the shutter is not fully opened by the matrix. In this case, some smaller amount of adhesive can ooze from the holes throughout the length of the screen, and then additional adhesive will ooze in the solid portions of the matrix where the shutter is forced open, creating a strong bond in those areas.

[0107] Figures 13A-13E illustrate another embodiment of a screen 1300 that can be used with adhesive anchor inserts. Figure 13A is a perspective view of this embodiment, and Figure 13B is a top view of this embodiment. Figure 13C is a view taken along line 13C-13C in Figure 13A. Figure 13D is a view taken along line 13D-13D in Figure 13A. Figure 13E is an enlarged view of the end portion shown in Figure 13A.

[0108] The screen 1300 is formed with a plurality of outwardly actuated shutters 1314 having a limited extent with only one open side 1318 (shown in FIG. 3D ). The shutters 1314 are arranged in four rows on the screen 1300, and a plurality of windows 1325 are provided in a stationary portion of the screen 1300. Not all instances of shutters and windows are numbered to avoid obscuring the illustration. Radial sections of the shutters 1314 are separated by support rings 1350. In one embodiment, seven support rings 1350 are provided. Each radial section, except for section 1380 nearest the end 1304, has two opposing shutters. The radial section 1380 near the end 1304 has four shutters 1314. The stationary wall panel 1326 has windows 1325. One of four support bosses 1352 separates each of the shutters 1314 from the stationary wall panel 1326. An end cap 1327 is shown attached to the leading first end 1302 of the screen 1300. In this embodiment, the end cap 1327 is integrally formed with the rest of the screen 1300 through a plastic molding process, but is attached to the screen by a tab 1327a. The screen 1300 may also be fitted with an abutment structure 1340 at the second end 1304 in a manner similar to that shown for screen 300 in FIG. 3B. The abutment structure 1340 is also integrally formed and attached to the screen 1300 by a tab 1340a. The screen 1300 includes a connecting structure comprising a post 1320 on the end 1302 and a notch 1310 in the end 1304 that mates with the post 1320, or a corresponding notch on an end cap 1327 of the screen 1300, as shown. In some implementations, the end 1302 can engage the end 1304 to connect multiple ones of the screens together using the notch 1310 and the post 1320.

[0109] As shown in FIGS. 13B-13E, the shutters 1314 are approximately equal in size, and as shown particularly in FIG. 3E, each shutter includes a cam 1316, an open side 1318, and two recessed sides 1315 and 1317. A fourth side 1319 is connected to one of the rings 1350, thereby defining each shutter as having a generally rectangular shape in the axial direction of the screen 1300. Each shutter 1314 may be forced inward as the screen 1300 enters a hole formed in the matrix or matrix wall into which it is inserted, increasing the area of ​​its side toward the interior of the screen. In this way, adhesive within the screen during installation is extruded along the entire length of the screen, but more adhesive is extruded in the areas adjacent to any web walls and within the matrix wall.

[0110] The support ribs 1352 extend between the leading, distal end 1302, which is inserted into the bore first, and the trailing, or anchor-receiving, end 1304. In one embodiment, four support ribs 1352 are provided (four each), although more or fewer ribs and more or fewer shutters in each ring may be used. In other embodiments, some sides need not include shutters and may be interleaved with sides that include shutters.

[0111] The embodiment of Figure 13 reduces the number of panels with cams and shutters, reducing installation effort and preventing too much adhesive from coming out of any single spot. The shutter 1314 is configured to open only along its open edge when the cam is activated, whereas other embodiments herein are free on three sides. This provides more flow control and prevents the shutter from accidentally opening outward under pressure, which could result in uncontrolled adhesive leakage into gap areas of the matrix. Additionally, adhesive is controlled to only be able to leak in solid sections of the matrix. Holes 1325 are provided in addition to the shutter to allow adhesive to extrude even if the shutter is not properly activated due to incorrect installation.

[0112] The notch 1310 is configured to be larger than the post 1320, and the sides 1321 and 1323 are relatively deep so that any adhesive that backs up the screen due to flow restrictions in the screen can exit through the notch 1310. A removable top cap 1327 may be tethered onto the top end 1392 of the screen 1300, and a bottom cap 1340 may or may not be tethered to the end 1304 of the screen. The bottom cap 1340 is installed by pressing it onto the notch 1310 at the bottom of the screen (in a manner similar to assembling several screens together) and is removed by twisting if additional screens are needed. An internal axial rib 1352a helps guide and center the threaded rod and prevents it from sagging downward in horizontal applications. The cam 1316 acts as an actuating device for the shutter and also holds the screen in place within the hole so that it cannot slide out of the upwardly sloping hole and / or the hole directly above it.

[0113] In various embodiments, the outwardly actuated shutter cams can be the same height / geometry or different heights / geometry along the entire length of the screen to control adhesive flow at distinct points on the screen. Generally, embodiments herein with axially oriented shutters provide long lever arms for easy hinging at connection points, making insertion into the base material easier. This both allows adhesives with different viscosities and / or particle sizes to work within the same screen and controls adhesive flow throughout the screen's length. Radially oriented shutters generally have short lever arms, providing better control of adhesive flow but may increase the force required to insert into the base material. The shutter cams can act as barbs to retain the screen within the holes directly above it.

[0114] Each of screens 300, 400, 600, 700, 800, 1000, 1200, and 1300 can be fabricated as a single injection-molded plastic part, thereby reducing manufacturing costs and significantly simplifying the supply chain. Alternative materials may be used to manufacture the screens, including sheet metal (e.g., steel, stainless steel, or aluminum), cardboard, or any material with sufficient strength and flexibility to allow the shutter hinges to function properly. Each of screens 300, 400, 600, 700, 800, 1000, 1200, and 1300 is modular in that they can be connected to additional respective anchor screens 300, 400, 600, 700, 800, 1000, 1200, and 1300 to provide variable and customized lengths as needed. In embodiments, end caps are shown as integrally formed as part of the screen and / or as separate but attachable to the main body of the screen. Each screen embodiment herein may include attached end caps or separate end caps. Also, integrally formed end caps may be removed in the art to allow for connection between multiple screens. While connection structures are variously described herein as notches and posts, it should be understood that a variety of different types of connection structures may be used with the techniques described herein.

[0115] Each of screens 300, 400, 600, 700, 800, 1000, 1200, and 1300 is referred to herein as being generally cylindrical, centered on a longitudinal axis A that passes through the center of each of the cross sections depicted in Figures 3E, 4C, 7C, 8C, and 8E. However, certain embodiments (e.g., screens 400, 600, 700, 800, 1000, 1200, and 1300) are not perfectly cylindrical because they either include shuttered sides or include cross sections defined by the shutters themselves that are not exactly circular cross sections. Each of screens 300, 400, 600, 700, 800, 1000, 1200, and 1300 is referred to herein as having a cylindrical shape—a three-dimensional geometry resembling a tube or cylinder, characterized by a hollow interior and one or more exterior surfaces resulting in a generally cylindrical shape. Each of screens 300, 400, 600, 700, 800, 1000, 1200, and 1300 is generally symmetrical about longitudinal axis A, with a cross-sectional area that remains constant along its length.

[0116] The terms "top" and "bottom," "upper" and "lower," "vertical" and "horizontal" as used herein are for illustrative and descriptive purposes only and are not intended to limit the description of the present invention, as the locations and orientations of the referenced items are interchangeable. Additionally, the terms "substantially" and / or "about" as used herein mean that a specified dimension or parameter may vary within an allowable manufacturing tolerance for a given application. In one embodiment, the allowable manufacturing tolerance is ±2.5% of the stated dimension.

[0117] The terminology used herein is for the purpose of describing particular aspects only and is not intended to limit the disclosure. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms unless the context clearly dictates otherwise. Furthermore, it will be understood that the terms "comprises" and / or "comprising," as used herein, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0118] 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 teachings. The described embodiments have been chosen to best explain the principles of the invention and its practical application, thereby enabling those skilled in the art to best utilize the invention by making various embodiments and modifications suited to the particular use envisioned. It is intended that the scope of the invention be defined by the claims appended hereto.

Claims

1. 1. A modular adhesive insert for an anchor assembly, comprising: a housing having a first end and a second end; the first end includes a first set of connecting structures; the second end includes a second set of connecting structures; The modular adhesive insert, wherein the housing includes a plurality of shutters between the first end and the second end, each of the shutters adapted to vary the size of an opening associated with each of the shutters.

2. The insert of claim 1 , wherein at least a first subset of the plurality of windows has the openings of a first size and at least a second subset of the plurality of windows has the openings of a second size.

3. further comprising a first end cap and a second end cap; 2. The insert of claim 1, wherein the first set of connecting structures is adapted to connect to the first end cap and the second set of connecting structures is adapted to connect the second end cap to the housing.

4. 2. The insert of claim 1, wherein each of the plurality of shutters has at least an open side, a second side opposite the open side, and two sides defined by a recess in the housing and positioned between the open side and the second side.

5. The insert of claim 1 , 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.

6. The insert of claim 1 , 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.

7. 2. The insert of claim 1, wherein each shutter 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 of claim 7 , wherein each of the plurality of shutters includes a hinged side that is perpendicular to a central axis of the housing such that each shutter opens along an axial length of the housing.

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

10. The insert of claim 9 , wherein the housing includes a plurality of panels interleaved with the plurality of shutters, some of the plurality of panels and some of the plurality of shutters including windows.

11. The insert of claim 1 , wherein the first set of connecting structures comprises posts and the second set of connecting structures comprises notches.

12. 1. A modular adhesive screen for an anchor 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 modular adhesive screen, wherein the body has a cylindrical shape defined by one or more outer surfaces, the one or more outer surfaces including a plurality of shutters, each of the plurality of shutters configured to vary an opening associated with the shutter installed in the insert assembly.

13. 13. The screen of claim 12, wherein each shutter has at least an open side, a second side opposite the open side, and two sides defined by recesses in the body and positioned between the open side and the second side.

14. 13. The screen of claim 12, wherein the shutters vary in size as the screen is laid into holes in a matrix.

15. 15. The screen of 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. 13. The screen of claim 12, wherein the anchor screen assembly includes an anchor rod that is inserted into the screen, and the shutter changes size as the anchor rod is laid into the screen.

17. 17. The screen of 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. 13. The screen of 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. 20. The screen of claim 18, wherein each of the plurality of shutters includes a hinged side that is perpendicular to a central axis of the screen such that each shutter opens along an axial length of the screen.

20. 20. The screen of claim 18, wherein the screen includes a plurality of panels interleaved with the plurality of shutters, some of the plurality of panels and some of the plurality of shutters including windows.

Images