Abstract
Methods for using installation tools are disclosed. Fastener installation tools engage the distal end of an elongated. Two projection elements positioned in a plane on the installation tool and a channel between the projection elements further are positionable to provide a marker for a user during use to achieve an optimal installation location.
Claims
1. A method of installing a fastener comprising: providing a fastener installation tool having a body comprising a first member having a substantially planar profile in a first plane, a positioning member formed integrally with the first member wherein the positioning member has a rocker positioned along a length of the positioning member between a channel face of the first member and a distal end of the positioning member on a first side, an axial channel passing from the distal end of the fastener installation tool to the proximal end; positioning the distal end of the positioning member against a target surface; and driving a fastener through the target surface.
2. The method of claim 1 further comprising the steps of providing an adapter and securing the fastener installation tool on a distal end of the adapter.
3. The method of claim 1 further comprising the steps of providing an adapter, providing a driver, engaging the adapter to the driver, and securing the fastener installation tool on a distal end of the adapter.
4. The method of claim 1 further comprising the step of providing a level tool.
5. The method of claim 4 further comprising the step of determining a level indication from the level tool.
6. The method of claim 4 further comprising the step of adjusting a position of the level tool to adjust a level indication of the level tool.
7. The method of claim 4 further comprising the step of removably securing the level indicator to an end of the fastener installation tool.
8. The method of claim 1 wherein the fastener installation tool further comprises one or more linear markers and one or more angled markers wherein at least one of the one or more linear markers is positioned on an exterior surface in the first plane and one or more angled marker are positioned on the exterior surface in the second plane and further wherein the one or more linear markers and one or more angled markers are visually distinct from a remainder of the body of the fastener installation tool.
9. The method of claim 8 further comprising the step of aligning at least one of the one or more linear marker and one or more angled markers with a surface plane of a target surface.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) The novel features of the invention are set forth with particularity in the appended claims. A better understanding of the features and advantages of the present invention will be obtained by reference to the following detailed description that sets forth illustrative embodiments, in which the principles of the invention are utilized, and the accompanying drawings of which:
(2) FIGS. 1A-F illustrate a fastener installation tool;
(3) FIGS. 2A-D illustrate a configuration of a level tool;
(4) FIGS. 3A-D illustrate another configuration of a level tool;
(5) FIG. 4A illustrates the fastener installation tool with a driver and a telescoping adapter;
(6) FIG. 4B is a close-up of a portion of the telescoping adapter;
(7) FIG. 4C is a close-up of a proximal end of the telescoping adapter;
(8) FIG. 4D is a cross-section of the fastener installation tool of FIG. 4A;
(9) FIGS. 5A-E illustrate fastener installation tools in use;
(10) FIG. 6 illustrates a handle engaging a level tool at a proximal end; and
(11) FIGS. 7A-E illustrate a fastener installation too connected to an adapter (FIG. 7A), the fastener installation tool removed from the adapter (FIG. 7B), the fastener installation tool engaging an extension without the adapter engaged (FIG. 7C), the fastener installation tool engaging both the extension and the adapter (FIG. 7D); and a cross-section of the fastener installation tool engaging the extension and the adapter (FIG. 7E).
DETAILED DESCRIPTION
(12) Fastener Installation Tools
(13) FIGS. 1A-F illustrate a fastener installation tool 100. FIG. 1A is a first planar view of the fastener installation tool 100. The fastener installation tool 100 has a proximal end 2 and a distal end 4. The distal end 4 has a first thickness in the first planar view of FIG. 1A that is different that the thickness of the proximal end 2 in the first planar view. The distal most end of the fastener installation tool 100 forms an engagement member 110 with an upper surface 111 and a lower surface 111′. Upper surface 111 and the lower surface 111′ can be parallel to each other, or substantially parallel, when viewed in the first planar view. The length of the engagement member 110 is from about 0.90 inches to about 1.25 inches, preferably about 0.975 inches, and the thickness is from about 0.200 inches to about 0.400 inches, preferably about 0.300 inches.
(14) The distal most end 113 of the engagement member 110 can be configured to have a rounded end (as shown). In another configuration, the distal most end 113 can be, for example, flat (e.g., an end which is perpendicular to the upper surface 111 and lower surface 111′), pointed, tapered, or angled. A linear marker 112 can be provided which forms a line along at least a portion of the length the fastener installation tool 100. The linear marker 112 can have a length that is, for example, 50% or greater of the overall length from the proximal end 2 to the distal end 4 of the fastener installation tool 100. The linear marker 112 can be achieved by using a surface treatment, applying a coating, or by over-molding. Thus, for example, achieving a result where the overall fastener installation tool 100 is one color (e.g., black) and the linear marker 112 is another color (e.g., orange). The linear marker 112 is configured to be visually distinct from the remainder of the fastener installation tool 100.
(15) The proximal end 2 of the engagement member 110 is formed integrally with a positioning member 120 such that the proximal end 2 is either made from one piece with the positioning member 120 or operates as a single piece when the fastener installation tool 100 is in a final assembly. The positioning member 120 increases in thickness at a neck 119, 119′. Each side of the positioning member 120 has a substantially flat positioning member 121, 121′.
(16) A rocker 130 is positioned approximately halfway along the length of the positioning member 120 between the proximal end 2 to the distal end 4. An angle θ is an angle at which the fastener is installed (see FIG. 5E). The measure of the angle is proportionate to a distance between the rocker 130 contact location and the distal end 113. As would be appreciated by those skilled in the art, the size and position of the rocker is relative to the size and position of the engagement member 110.
(17) The rocker 130 forms a curved surface that extends from the substantially flat surface of the flat positioning member 121, 121′. The rocker 130 can be a curved surface, as illustrated, that provides a fulcrum which allows the fastener installation tool 100 to be positioned with respect to the target surface, such as a rafter. This allows the user to pivot the distal end 4 of the fastener installation tool 100 back-and-forth along an axis from the proximal end 2 to the distal end 4. A tongue and groove shape 150, 152 can be provided at the proximal end 2 of the fastener installation tool 100. The tongue and groove shape 150, 152 can be used, for example, to align the fastener installation tool with a level tool such as those shown in FIGS. 2-3.
(18) An aperture 146 is provided that passes from one side of the fastener installation tool 100 to the opposing side. The aperture 146 allows an attachment member, such as a screw, to pass through. The aperture 146 can be positioned at a 90 degree angle from the longitudinal axis of the fastener installation tool 100 or at an angle 90 degrees from what is shown. The aperture 146 allows, for example, a screw to pass through to secure the fastener installation tool 100 to the telescoping member.
(19) The length of the positioning member 120 is from about 2.0 inches to about 4.0 inches, preferably about 3.0 inches. The thickness of the positioning member 120 is from about 0.40 inches to about 0.75 inches, preferably about 0.610 inches, at its distal end and from about 0.90 inches to about 1.125 inches, preferably about 1.115 inches, at its proximal end. The rocker 130 extends from the surface of the positioning member from about 0.40 inches to about 0.75 inches, preferably about 0.565 inches. Typically, the dimensions are proportional, such that the distance between the points of contact with, for example, the stud, result in a predetermined angle of installation. A suitable range for angle of installation is, for example, between 4 and 14 degrees when a rafter is centered over a stud.
(20) FIG. 1B is a planar view of the fastener installation tool 100 rotated perpendicularly 90 degrees about the x axis of the view of FIG. 1A, where the x axis refers generically to an axis which can be in any of the x-y-z direction. The engagement member 110 which appears as a solid member in the first plane shown in FIG. 1A has projections 114, 116 with a channel 115 in between the projections 114, 116 in a second plane. The channel 115 between the projections 114, 116 has a channel face 118 at the proximal end. The channel face 118 can be perpendicular to the projections 114, 116. Additionally, the projections 114, 116 can have parallel, or substantially parallel, sides which face each other within the channel 115 as illustrated. In other configurations the projections 114, 116 are not parallel. The channel 115 has a length of about 0.75 inches to about 1.115 inches, preferably about 0.975 inches, from the distal end of the fastener installation tool 100 and a width of about 0.30 inches to about 0.40 inches, preferably about 0.500 inches, between the projections 114, 116. Other shapes of the channel face 118 can be employed without departing from the scope of the disclosure including but not limited to convex, concave, sloped, and angled. The distal end 4 of the projections 114, 116 can have an interiorly positioned notch 117, 117′ on one or both projections 114, 116 facing into the channel 115. The positioning member 120 has a pair of angled markers 142, 144. The pair of angled markers 142, 144 can be achieved by surface treatment, applying a coating, or over-molding. Thus, for example, achieving a result where the overall device is one color (e.g., black) and the angled markers 142, 144 are another color (e.g., orange). The pair of angled markers 142, 144 are configured to be visually distinct from the remainder of the fastener installation tool 100. The angle A1 between the angled markers 142, 144 is from about 35 degrees to about 55 degrees, preferably about 45 degrees. The angled markers 142, 144 are angled to a degree off of a linear axis between the proximal end 2 and the distal end 4 to allow the user to visually determine when one of the angled markers 142, 144 is parallel to a vertical member or parallel a horizontal member (shown in FIG. 5).
(21) FIG. 1C is a view of the fastener installation tool 100 of FIGS. 1A-B from the proximal end 2. An axial channel 180 which passes through the fastener installation tool 100 from the proximal end 2 to the distal end 4 is provided through which a fastener (shown in FIG. 5) passes during use of the fastener installation tool 100.
(22) FIG. 1D is a view of the fastener installation tool 100 of FIGS. 1A-B from the distal end 4 down the axial channel 180.
(23) FIGS. 1E-F are perspective views of the fastener installation tool 100 of FIGS. 1A-B.
(24) Position Indicator Tools
(25) FIGS. 2A-D illustrate a configuration of position indicator tool such as a level tool 200. The level tool 200 is configured to removably engage a tubular member 412 (shown in more detail in FIG. 4). The level tool 200 has a length of from about 1.60 inches to about 2.10 inches, preferably about 1.886 inches, and a diameter of from about 0.90 inches to about 1.30 inches, preferably about 1.115 inches. The level tool 200 has a partial tubular shape having a curved interior surface which has an open end 202 along a length to allow the level tool 200 to engage a tubular member 412 as shown in FIG. 2. The curved interior surface (shown in FIG. 2D) has a length that is substantially the same as the overall length of the level tool 200, and a diameter across a mid-line of about 0.6 inches to about 1.2 inches, preferably about 0.875 inches. The partial tubular shape can be from about 225 degrees of a 360 degree circle to about 275 degrees of a 360 degree circle, preferably about 250 degrees. Other shapes can be used without departing from the scope of the disclosure.
(26) A flange 250, 250′ can be provided on either side of the open end 202 of the level tool 200 (i.e., the end that engages the tubular member 412). Either or both flanges 250, 250′ which present a tongue and groove interface can extend along the entire length of the open end 202 of the level tool 200. Flanges can be provided for ease of attachment to the tubular member. A bubble level is positioned on an exterior surface 204 of the level tool 200. The bubble level has a vial 230 which is slightly curved and held by mounting members 210, 220 on either side of the vial 230.
(27) The mounting members 210, 220 extend from an exterior surface of the level tool 200. As illustrated, the mounting members 210, 220 are not parallel one another on the exterior surface 204. However, the mounting members 210, 220 can be parallel in some configurations. The mounting members 210, 220 are configurable to have a common axis through their center. One mounting member 210 is closer to the proximal end 2 while the other mounting member 220 is farther away from the proximal end 2 and closer to the distal end 4. The spacing between the mounting members 210, 220 is such that a user has an unobstructed view of the bubble 240 in the vial during operation when the fastener installation tool 100 is at an optimum position for installing the fastener and an obscured view when the fastener installation tool 100 is not at an optimum position for installing the fastener.
(28) The vial 230 can be a curved glass or plastic vial. The vial 230 is incompletely filled with a liquid. Suitable liquid for the vial can be a colored liquid, such as a colored alcohol. The vial has a slight upward curve so that a bubble 240 in the fluid naturally rests at a center position along the length of the vial 230 when an axis of the vial 230 between an end engaging a first mounting member 210 and an end engaging a second mounting member 220 is either horizontal or vertical to, for example, a top plate 20 or a vertical stud 30 (shown in FIG. 5). At slight inclinations, the bubble 240 travels away from center position of the vial 230 toward a first end or second end of the vial 230. Movement of the bubble 240 within the vial 230 helps the user determine when a horizontal (level) or vertical (plumb) position has been achieved. An end of the level tool 200, such as the distal end 4, can have a tongue and groove 252 shape. The tongue and groove shape 252 can be used to align the level tool 200 with, for example, a fastener installation tool 100 of FIG. 1. In other configurations, the end of the level tool 200 can be flat. FIG. 6 illustrates a level tool 200 which has a tongue and groove shape 252 on both ends of the tool. The proximal end of the tongue and groove 252 can be configured to engage a handle 610 as illustrated in FIG. 6.
(29) FIG. 2B is a view of the level tool 200 of FIG. 2A from a first side showing a convex curved exterior surface and the offset positioning of the mounting members 210, 220. FIG. 2C is a view of the level tool 200 of FIG. 2A from a second side showing a concave curved interior surface. FIG. 2D illustrates the level tool 200 rotated 90 degrees from the view in FIG. 2B. From this view, the open end 202 with its semi-circular shape and flanges 250 that extend away from a centerline is apparent.
(30) The mounting members 210, 220 can form an inverted “V” or “U” when viewed from the side as shown in FIG. 2D. This orientation of the mounting members 210, 220 allows as much light as possible to pass through the vial, which provides for better visibility of the bubble for the user. In some configurations, a symmetrical part can be used from the right and the left which allows the flanges forming a tongue and groove surface to be positioned on both sides of the level tool 200.
(31) FIGS. 3A-D illustrate a configuration of a position indicator tool 300. The position indicator tool 300 is configured to removably engage a tubular member 412 as shown in FIG. 4. The position indicator tool 300 has a length of from about 1.60 inches to about 2.20 inches, preferably about 1.886 inches, and a diameter of from about 0.80 inches to about 1.20 inches, preferably about 1.0 inches. The position indicator tool 300 has a partial tubular shape having a curved interior surface which has an open end 302 along a length to allow the position indicator tool 300 to engage a tubular member 412 as shown in FIG. 4. The curved interior surface (shown in FIG. 3D) has a length of about 1.60 inches to about 2.20 inches, preferably about 1.886 inches, and a diameter across a mid-line of about 0.50 inches to about 1.0 inches, preferably about 0.75 inches. The partial tubular shape can be from about 225 degrees of a 360 degree circle to about 275 degrees of a 360 degree circle, preferably about 250 degrees. Other shapes can be used without departing from the scope of the disclosure.
(32) A flange 350, 350′ can be provided on either side of the open end 302 of the level tool 300. Either or both flanges 350, 350′ can extend along the entire length of the open end 302 of the position indicator tool 300. A laser element 330 is positionable within mounting 320. The mounting 320 is positioned on a connecting member 328 which is integrally formed on the exterior surface 304 of the position indicator tool 300. The height of the laser element is such that the laser light still appears on the truss or rafter when the screw is being installed as described below in FIG. 5C. The ability to continue to visualize the laser light enables the user to ensure accurate placement of the fastener.
(33) FIG. 3B is a view of the position indicator tool 300 of FIG. 3A from a first side showing a convex curved exterior surface. As shown in FIG. 3B the laser element 330 extends beyond the upper surface of the mounting 320. To activate the laser element 330, the laser element 330 is pushed out of the mounting 320. As will be appreciated by those skilled in the art, activation of the laser can be achieved a variety of ways. In one embodiment, the whole laser element is pushed from, for example, the bottom so that it extends out of the housing. The step of pushing the laser element turns on the light. The step of pushing the laser back into the housing turns off the laser light. In another configuration, a switch element can be provided which is activated when the fastener installation tool engages a work surface. Removal of the fastener installation tool from the work surface would then turn off the laser light. In another configuration, a switch can be provided on the handle of the tool. In still another configuration, the light can be activated by twisting the mounting piece and the tool relative to one another. In still another configuration, a Bluetooth switch can be provided. In yet another configuration, a switch can be provided which is related to the spinning mandrel inside the tool. Spinning of the mandrel would activate the switch and turn on the laser.
(34) FIG. 3C is a view of the position indicator tool 300 of FIG. 3A from a second side showing a concave curved interior surface. FIG. 3D illustrates the position indicator tool 300 rotated 90 degrees from the view in FIG. 3B. From this view, the open end 302 with its semi-circular shape and flanges 350 that extend away from a centerline is apparent. The position indicator tool 300 could also have tongue and groove features as shown on the bubble level mount.
(35) Telescoping Adapters
(36) FIG. 4A illustrates the fastener installation tool 100 with a driver 490 and a telescoping adapter 410. The fastener installation tool 100 engages the telescoping adapter 410 at a distal end 4. The proximal end 2 of the telescoping adapter 410 engages the driver 490. The driver 490 is any suitable tool, such as a heavy-duty hand tool. Suitable heavy duty tools include, for example, power drills.
(37) FIG. 4B is a close-up of a portion of the telescoping adapter 410. The telescoping adapter has a first tubular member 412 and a second tubular member 414 that fits within the interior of the first tubular member 412. The first tubular member 412 can have a larger diameter than the second tubular member 414. The two tubular members can be keyed to control movement of the first tubular member 412 with respect to the second tubular member 414. The keyed feature can act as a forward and backward stop position. An elongated channel 416 or slot is formed in the second tubular member 414. A keying member 420 is provided which has an elongated body 422 to fit within the elongated channel 416 and a raised element 420 which is sized to fit within an aperture 418 in the first tubular member 412. The elongated body 422 of the keying member 420 is passed through the aperture 418 in the first tubular member 412. The elongated body 422 is configured to sit within the elongated channel 416. Once the elongated body 422 is positioned within the elongated channel 416, the raised element 420 sits within the aperture 418. The top surface 426 of the raised element 420 can be flush with the exterior surface of the first tubular member 412 or extend above the exterior surface of the first tubular member 412. One or more securement devices (not shown), such as screws, can be used to secure the keying member 420 securely in position. The securement devices would pass through the apertures 422, 424 in the first tubular member 412 and the keying member 420.
(38) FIG. 4C is a close-up of a proximal end 2 of the telescoping adapter 410. A drill chuck 460 engages the mandrel 450 which spins freely within the telescoping tube 454.
(39) FIG. 4D shows a cross-section of the telescoping adapter 410 with the mandrel 450 at the proximal end and the bit 452 towards the distal end, where the bit 452 engages the fastener 80.
(40) Use of Devices and Systems
(41) FIGS. 5A-E illustrate fastener installation tools in use when installing fasteners to, for example, wood framing components. The projections 116 act as forks to stabilize the tool during use while the fastener is being driven into, for example, the rafters.
(42) As shown for illustration in FIGS. 5A-D, a rafter 10 is adjacent a top plate 20. A vertical stud 30 engages the top plate 20 at a 90 degree angle. Movement of the fastener installation tool 100 changes the orientation of the angled markers 142, 144 so that one of the markers is parallel to either the top plate 20 or the vertical stud 30. As shown in FIG. 5A, the angled marker 142 is positioned approximately parallel to the vertical stud 30. Because the angled marker 142 is visually distinct from the body of the fastener installation tool 100, the user can readily assess the position of the marker 142, for example, to the vertical stud 30. The front face of the top plate 20 and the stud 30 are essentially flush. The angled markers 142 provide a visual references, for example, to the target surface. Positioning either of the angled markers 142 so that they are vertical, for example, ensures a correct angle of installation of the screw 80. Further, the angled markers 142 can be visually compared to other vertical surfaces or edges within the line of sight by the user. Another feature of the design is that the interiorly positioned notches 117, 117′ are angled to allow easy and comfortable engagement with the top plate 20 as shown in FIG. 5A. This provides tactile feedback to the user that the tool is positioned securely.
(43) In FIG. 5A, the fastener installation tool 100 attached to a telescoping adapter 410 engages a side surface 22 of a top plate 20 at an angle. The fastener installation tool 100 is positioned so that one of the interiorly positioned notches 117 of a projection 116 is positioned on the side surface 22 of the top plate 20 while the second projection 116′ is positioned on the lower surface 24 of the top plate 20. The distal tip of the fastener 80 extends beyond the recessed face of the channel 115. The user can move the telescoping adapter 410 upward to change the angle of attack of the fastener installation tool 100 and the fastener 80. Additionally, the user can move the telescoping adapter 410 from side-to side to change the angle of attack of the fastener installation tool 100 and the fastener 80.
(44) Turning to FIG. 5B, the fastener installation tool 100 is shown attached to a telescoping adapter 410 turned 90 degrees from the deployment illustrated in FIG. 5A and at the intersection between the top plate 20 and the vertical stud 30. Additionally, a level tool 200 is positioned on the telescoping adapter 410 immediately below the fastener installation tool 100. In use, the user can move the telescoping adapted forward and backward so that a rocker 130 engages a surface 32 of the vertical stud 30. The level tool 200 is positioned so that the user can look up at the level tool 200 to determine whether the tool itself is at a desired orientation.
(45) FIG. 5C illustrates the fastener installation tool 100 engaging a telescoping adapter 410. The fastener installation tool engages the top plate 20 on the lower surface 24 and the vertical stud 30 on a second surface 34. The rocker 130 and the visual indicator 112 allow the user to essentially aim for the center of the rafter. When the rafter is not centered over the stud, the user can utilize the rocker 130 engagement to quickly and easily adjust the angle of installation as needed. In some configurations, the telescoping adapter 410 and fastener installation tool 100 are moved towards and away 60 the vertical stud 30.
(46) FIG. 5D illustrates the fastener installation tool 100 attached to a telescoping adapter 410. Additionally, a position indicator tool 300 is positioned on the telescoping adapter 410 immediately below the fastener installation tool 100. The fastener installation tool 100 is shown positioned away from the intersection between the top plate 20 and the vertical stud 30. In use, the laser element 330 is activated so that a light beam 332 is generated. The light beam 332 from the laser element 330 provides the user with visual feedback of the relative location of where the fastener will penetrate the top plate 20. For purposes of illustration, the position indicator tool 300 is shown below the lower surface of the top plate 20. However, in use the position indicator tool 300 would allow for installation from the side of a stud 30 and below a rafter 10. So the vertical installation illustrated is for ease of reference, as would be appreciated by those skilled in the art. In use, the position indicator tool 300 would allow for installation at angles other than perpendicular.
(47) Prior to engagement of the fastener installation tool 100 with, for example, the top plate 20 of the roof support structure, a fastener 80 is placed into a fastener channel with the fastener head proximate to or engaging with a coupler. A portion of the fastener 80 is typically initially received in a chamber of the telescoping adapter 410 adjacent the distal end 4. A mandrel 450 is proximate the proximal opening of the telescoping adapter 410. It will be appreciated that the fastener installation tool 100 as properly positioned on the distal end 4 of the telescoping adapter 410 provides an entry point and for the fastener 80 as the fastener 80 is driven through the top plate 20 into the roof support member with the application of torque from the driver 490. The driver 490 can be easily dismounted from the telescoping adapter 410. The telescoping adapter 410 may employ a receiver configured to receive and functionally attach to a wide range of dismountable drill guns without the torque driver 490 being fully integrated with the telescoping adapter 410, as will be appreciated by those skilled in the art.
(48) FIG. 5E is a close-up cut-away of the fastener installation tool 100 with the distal end engaging the top plate 20, and a side surface of the fastener installation tool 100 engaging the side of the vertical stud 30. The fastener is positioned in the central channel. h is a dimension that is parallel to the center axis of the tool and the fastener. y is the short side of the triangle formed between the vertical stud 30 and h, and 0 is the angle between the vertical member 30 and h.
(49) Turning now to FIGS. 7A-E a fastener installation tool 100 is illustrated connected to telescoping adapter 419 in FIG. 7A. As described above, the fastener installation tool 100 can be removed from the telescoping adapter 410 as shown in FIG. 7B. In some use situations, additional distance between the fastener installation tool 100 and the driver 490 (shown in FIG. 4A) may be desirable. Where additional distance is desirable, the fastener installation tool 100 engages a secondary extension 710 via an extension connector 720.
(50) The fastener installation tool 100 can be part of a modular system which is connected to one or more secondary extensions 710 via one or more extension connectors 720. The modular configuration allows the tool to be used at a variety of distances away from the user. This allows the user to secure framing components at a target angle while remaining on the ground, thus eliminating the need to climb on a ladder to secure framing components or achieve a target angle of the fastener.
(51) FIG. 7C illustrates the fastener installation tool 100, the secondary extension 710, the extension connector 720 and the telescoping adapter 410. When the components are connected, the fastener installation tool 100 engages the secondary extension 710 at the proximal end of the fastener installation tool 100 and the distal end of the secondary extension 710. The secondary extension 710 engages the extension connector 720 at the proximal end of the secondary extension 710 and the distal end of the extension connector 720. The extension connector 720 engages the telescoping adapter 410 at the proximal end of the extension connector 720 and the distal end of the telescoping adapter 410. FIG. 7D illustrates a side-view of the connection between the secondary extension 710, extension connector 720 and the telescoping adapter 410. A cross-section of the fastener engaging the extension and the adapter is illustrated in FIG. 7E. As illustrated, the secondary extension 710 and the telescoping adapter 410 fit within an interior of the extension connector 720.
(52) While preferred embodiments of the present invention have been shown and described herein, it will be obvious to those skilled in the art that such embodiments are provided by way of example only. Numerous variations, changes, and substitutions will now occur to those skilled in the art without departing from the invention. It should be understood that various alternatives to the embodiments of the invention described herein may be employed in practicing the invention. It is intended that the following claims define the scope of the invention and that methods and structures within the scope of these claims and their equivalents be covered thereby.
