Patent Description:
Eddie-bolts are high-performance fasteners used in the assembly of aircraft, such as the F-<NUM>. To ensure that the eddie-bolt has been installed correctly, a mechanic uses two separate measuring devices to ensure that the bolt is both the correct height and has been swaged correctly. These two devices are used to visually ensure that the bolt has been installed correctly and can be difficult to determine in hard to reach areas. It can also cause bending or straining for the operator to ensure that they are accurately reading the measuring device. Due to the possible subjectivity of the current measuring device, an inspector has to inspect each bolt again after the mechanic has finished the initial inspection. By the time inspection is complete, each bolt has been checked twice with two different tools, leading to four checks for every eddie-bolt installed. <CIT> discloses a system and method for thread protrusion verification, in which an apparatus comprises a housing and a plurality of electrical contacts arranged to sequentially contact a contact device as the contact device moves through the housing, the contact device comprising a first end configured to couple to a bolt, a second end opposite the first end, and a conductive region between a first insulated region and a second insulated region. <CIT> discloses a swage collar inspection tool in which, to evaluate a fastener, a cam that is contoured to correspond to a relationship between a first dimension of the fastener and a second dimension of the fastener is utilized, the cam being moveable between a first position and a second position, the fastener evaluated based on whether an electrical connection is completed when contact occurs between the cam and the fastener while the cam is moved from the first position to the second position. <CIT> discloses a dual-function gage for measuring dimensions of a fastener assembly, in which a gage plug sits on a swaged collar during measurements and pin protrusion is measured when a collar swage height measurement contact member is disposed in a slot in the gage plug. <CIT> discloses a gauge for checking how far a bolt, nut, screw etc protrudes from a surface, the gauge comprising a collar having an axial bore with an opening and a predetermined diameter, a member slidably mounted within at least part of the axial bore, and an indicator means.

To assist in understanding the present disclosure, reference is now made to the following description taken in conjunction with the accompanying drawings, in which:.

To facilitate a better understanding of the present disclosure, the following examples of certain embodiments are given. The following examples are not to be read to limit or define the scope of the disclosure. Embodiments of the present disclosure and its advantages are best understood by referring to <FIG>, where like numbers are used to indicate like and corresponding parts.

Described herein are various systems, tools, and methods that provide for both the height and the swage of an eddie-bolt to be checked at the same time and to give an immediate visual signal if the bolt has been installed correctly or not. The eddie-bolt inspection device may remove operator subjectivity in measuring the bolt height and decrease the ergonomic risk by removing the need for operators to bend over to read the height measurements. The eddie-bolt inspection device may further allow for the operator to use a singular tool for both measurements and does not require an inspector repeat the process of measuring, thereby reducing the number of inspections for each bolt from four to one. The invention is defined in appended independent claim <NUM>.

<FIG> illustrates an isometric view of an eddie-bolt inspection tool <NUM>. The eddie-bolt inspection tool <NUM> may be configured to measure and/or verify the height and swage of one or more eddie-bolts used in the assembly of an aircraft. In one or more embodiments, the swage may be the post-installation diameter of the eddie-bolt. The eddie-bolt inspection tool <NUM> may be further configured to visually indicate that the height and swage of each of the one or more eddie-bolts are correct and/or within an allowable tolerance. In embodiments, the eddie-bolt inspection tool <NUM> may be any suitable size, height, shape, and combinations thereof. In embodiments, the eddie-bolt inspection tool <NUM> may comprise a generally rectangular cross-sectional shape. The eddie-bolt inspection tool <NUM> may comprise any suitable materials. Without limitations, the suitable materials may be metals, nonmetals, polymers, composites, and any combinations thereof. In embodiments, the eddie-bolt inspection tool <NUM> comprises a body <NUM>, a cap <NUM>, a cover <NUM>, and a nose piece <NUM>.

As illustrated, the cap <NUM> is disposed on top of the body <NUM>. In embodiments, the body <NUM> is disposed on top of the nose piece, where the nose piece <NUM> is at least partially disposed within the body <NUM>. In embodiments, the cover <NUM> is disposed around and on at least a portion of the body <NUM> so as to enclose the interior of the body <NUM>. In these embodiments, the cover <NUM> may be disposed in-line with the thickness of the sides of the body <NUM>.

<FIG> illustrates an embodiment of the body <NUM>. In one or more embodiments, the body <NUM> may be configured to contain one or more of the components of the eddie-bolt inspection tool <NUM> (referring to <FIG>) at least partially within an interior of the body <NUM>. In embodiments, the body <NUM> may be any suitable size, height, shape, and combinations thereof. The body <NUM> may comprise any suitable materials. Without limitations, the suitable materials may be metals, nonmetals, polymers, composites, and any combinations thereof. In embodiments, the body <NUM> comprises a first side <NUM>, a second side <NUM>, a third side <NUM>, and a fourth side <NUM>. In embodiments, the first side <NUM> may be any suitable size, height, shape, and combinations thereof. In these embodiments, the first side <NUM> may generally be in the shape of a rectangle. As illustrated, the second side <NUM> may be parallel to the first side <NUM>. In one or more embodiments, the second side <NUM> may comprise similar or equivalent dimensions as the first side <NUM>. In these embodiments, there may be an opening <NUM> disposed in the second side <NUM>, wherein the opening <NUM> may be configured to allow access to an interior of the body <NUM>. As illustrated, the opening <NUM> may be disposed in both the second side <NUM> and the third side <NUM>. Without limitations, a portion of the opening <NUM> disposed in the second side <NUM> may generally be in the shape of a rectangle with a curvilinear line disposed at an end of the second side <NUM> closer to the fourth side <NUM>. In embodiments, a remaining portion of the opening <NUM> disposed in the third side <NUM> may be in the shape of a rectangle, where the ratio of the dimensions of the rectangle may be similar to those of the shape of the third side <NUM>.

In embodiments, the second side <NUM> may be coupled to the first side <NUM> by the third side <NUM> and the fourth side <NUM>. The third side <NUM> may be perpendicular to the first side <NUM> and the second side <NUM>. The third side <NUM> may be any suitable size, height, shape, and combinations thereof. In these embodiments, the third side <NUM> may be in the shape of a rectangle. As illustrated, the remaining portion of the opening <NUM> disposed in the third side <NUM> may provide for an absence of material comprising the third side <NUM>. In one or more embodiments, the third side <NUM> may comprise of the thicknesses of the first side <NUM>, a top side <NUM> of the body <NUM>, and a bottom side <NUM> of the body <NUM>.

In one or more embodiments, the fourth side <NUM> may be coupled to the first side <NUM> and the second side <NUM> and may be disposed opposite to the third side <NUM>. The fourth side <NUM> may be any suitable size, height, shape, and combinations thereof. In embodiments, the fourth side <NUM> may be a curvilinear shape. Without limitations, the fourth side <NUM> may be a semicircle.

As illustrated, the body <NUM> may further comprise a first internal compartment <NUM> and a second internal compartment <NUM>. The first internal compartment <NUM> and the second internal compartment <NUM> may be any suitable size, height, shape, and combinations thereof. The first internal compartment <NUM> may comprise a first wall <NUM>, a second wall <NUM>, and a compartment opening <NUM>. The first wall <NUM> may be disposed within the body <NUM> and extend from the first side <NUM> to the second side <NUM>. The second wall <NUM> may be disposed within the body <NUM> and extend from the fourth side <NUM> to the third side <NUM>. In embodiments, the first wall <NUM> may be coupled to the second wall <NUM> where the first wall <NUM> is perpendicular to the second wall <NUM>. As illustrated, the compartment opening <NUM> may be disposed in the second wall <NUM>. In embodiments, the compartment opening <NUM> may be configured to allow access to a main bore (for example, main bore <NUM> in <FIG>) that is disposed through the first internal compartment <NUM> from the top side <NUM> of the body <NUM> to the bottom side <NUM> of the body <NUM>.

The second internal compartment <NUM> may comprise a first wall <NUM> and a second wall <NUM>. The first wall <NUM> may be disposed within the body <NUM> and extend from the first side <NUM> to the second side <NUM>. In embodiments, the first wall <NUM> may be offset from the first wall <NUM> by a certain distance closer to the third side <NUM> and may be parallel to the first wall <NUM>. In further embodiments, the first wall <NUM> may have a shorter length and/or height than the first wall <NUM>. The second wall <NUM> may be disposed within the body <NUM> and extend from the first wall <NUM> to the third side <NUM>. In embodiments, the first wall <NUM> may be coupled to the second wall <NUM>, wherein the first wall <NUM> is perpendicular to the second wall <NUM>. In embodiments, the second wall <NUM> may be offset from the second wall <NUM> by a certain distance closer to the first side <NUM> and may be parallel to the second wall <NUM>. In these embodiments, the second wall <NUM> may have a shorter length and/or height than the second wall <NUM>. In embodiments, there may be a central bore defined by the first wall <NUM>, second wall <NUM>, first wall <NUM>, and the top side <NUM> of the body <NUM>. The central bore may be any suitable size, height, shape, and combinations thereof. In these embodiments, the central bore may be configured to receive a position switch (for example, second position switch <NUM> in <FIG>), wherein the position switch may be inserted through an end of the second internal compartment <NUM> opposite of the top side <NUM> of the body <NUM>.

<FIG> illustrates a top view of the top side <NUM> of the body <NUM>. The top side <NUM> of the body <NUM> may be any suitable size, height, shape, and combinations thereof. In these embodiments, the top side <NUM> of the body <NUM> may be in the shape defined by the first side <NUM>, the second side <NUM>, the third side <NUM>, and the fourth side <NUM>. In one or more embodiments, the top side <NUM> of the body <NUM> may comprise one or more fastener holes <NUM>, wherein each of the one or more fastener holes <NUM> may be configured to receive any suitable fastener. The top side <NUM> of the body <NUM> may further comprise a main bore <NUM>, a valve recess <NUM>, a valve fastener hole <NUM>, and a light-emitting diode (LED) hole <NUM>. In embodiments, the main bore <NUM> may be disposed through the top side <NUM> of the body <NUM> about or near the fourth side <NUM>. The main bore <NUM> may be any suitable size, height, shape, and combinations thereof capable to receive a portion of a valve (for example, valve <NUM> in <FIG>). As illustrated, the main bore <NUM> may be disposed adjacent to the valve recess <NUM>. In embodiments, the valve recess <NUM> may be configured to receive a remaining portion of the valve (for example, valve <NUM> in <FIG>). The valve recess <NUM> may be any suitable size, height, shape, and combinations thereof. The valve recess <NUM> may be offset below the top side <NUM> of the body <NUM> by a certain distance and may be parallel to the top side <NUM> of the body <NUM>. In embodiments, the valve fastener hole <NUM> may be disposed in the valve recess <NUM>. The valve fastener hole <NUM> may be configured to receive any suitable fastener to couple the valve (for example, valve <NUM> in <FIG>) to the top side <NUM> of the body <NUM>. In one or more embodiments, the LED hole <NUM> may be disposed about any suitable location on the top side <NUM> of the body <NUM>. As illustrated, the LED hole <NUM> may be disposed near the valve recess <NUM> between the valve recess <NUM> and the third side <NUM>. In embodiments, the LED hole <NUM> may be configured to receive an LED (for example, LED <NUM> in <FIG>).

<FIG> illustrates a view of a valve <NUM>. The valve <NUM> may be configured to house a position switch (for example, first position switch <NUM> in <FIG>). In one or more embodiments, the valve <NUM> may be at least partially disposed within the body <NUM> (referring to <FIG>) to dispose the position switch within the body <NUM>. In embodiments, the valve <NUM> may be any suitable size, height, shape, and combinations thereof. The valve <NUM> may comprise any suitable materials. Without limitations, the suitable materials may be metals, nonmetals, polymers, composites, and any combinations thereof. In one or more embodiments, the valve <NUM> may comprise a valve body <NUM>, a top portion <NUM>, a fastener hole <NUM>, and a central bore <NUM>. The valve body <NUM> may comprise a circular cross-sectional shape and may generally be cylindrical. In embodiments, the valve body <NUM> may be disposed into the main bore <NUM> (referring to <FIG>) within the body <NUM>. As illustrated, the top portion <NUM> may be disposed on top of the valve body <NUM> and may be coupled to the valve body <NUM>. The top portion <NUM> may be perpendicular to the valve body. The fastener hole <NUM> may be disposed in the top portion <NUM> about any suitable location. In embodiments, the fastener hole <NUM> may align with valve fastener hole <NUM> (referring to <FIG>) to secure the valve <NUM> to the body <NUM>. In these embodiments, the cross-sectional shape of the top portion <NUM> may match that of and align with the valve recess <NUM> (referring to <FIG>) and the main bore <NUM>. As illustrated, the central bore <NUM> of the valve <NUM> may be disposed through the top portion <NUM> and the valve body <NUM>. In embodiments, the central bore <NUM> may align with the central axis of the valve body <NUM>. There may be a slot <NUM> disposed through at least a portion of the length of the valve body <NUM> configured to provide access to the central bore <NUM>. The slot <NUM> may be any suitable size, height, shape, and combinations thereof. In embodiments, the slot <NUM> may at least partially align with the compartment opening <NUM> (referring to <FIG>) to provide access from the central bore <NUM> to the interior of the body <NUM>.

<FIG> illustrate a view of the cap <NUM>. <FIG> illustrates an isometric top view of the cap <NUM>, and <FIG> illustrates an isometric bottom view of the cap <NUM>. With reference to both <FIG>, the cap <NUM> may be configured to be disposed on top of the body <NUM> (referring to <FIG>) and to be coupled to the top side <NUM> (referring to <FIG>) of the body <NUM>. As illustrated, the cap <NUM> may comprise one or more fastener holes <NUM>, a LED hole <NUM>, a fastener recess <NUM>, a shim recess <NUM>, and a spring recess <NUM>. In embodiments, the one or more fastener holes <NUM> may be disposed through the cap <NUM> at any suitable location along the cap <NUM> and may be configured to receive any suitable fastener. In one or more embodiments, the one or more fastener holes <NUM> of the cap <NUM> may align with the one or more fastener holes <NUM> (referring to <FIG>) of the top side <NUM> of the body <NUM> to secure the cap <NUM> to the body <NUM>. The LED hole <NUM> may be disposed through the cap <NUM> at any suitable location along the cap <NUM> and may be configured to receive the LED (for example, LED <NUM> in <FIG>). In one or more embodiments, the LED hole <NUM> of the cap <NUM> may align with the LED hole <NUM> (referring to <FIG>) of the top side <NUM> of the body <NUM>. As illustrated, the fastener recess <NUM> may be disposed in a bottom surface <NUM> of the cap <NUM>. The fastener recess <NUM> may be any suitable size, height, shape, and combinations thereof. The fastener recess <NUM> may be offset from the bottom surface <NUM> of the cap <NUM> by a certain distance and may be parallel to the bottom surface <NUM> of the cap <NUM>. In embodiments, the height of the fastener recess <NUM> may be less than the thickness of the cap <NUM> so as to not be accessible from a top surface <NUM> of the cap <NUM>. The fastener recess <NUM> may be configured to receive a portion of a suitable fastener protruding from the valve fastener hole <NUM> (referring to <FIG>) when the cap <NUM> is coupled to the body <NUM>. As illustrated, the shim recess <NUM> may be disposed in the top surface <NUM> of the cap <NUM>, and the spring recess <NUM> may be disposed in the bottom surface <NUM> of the cap. In embodiments, the shim recess <NUM> may be configured to receive one or more shims (not shown). In embodiments, the spring recess <NUM> may be configured to receive an end of a spring (not shown) disposed over a position switch (for example, first position switch <NUM> in <FIG>) disposed in the valve body <NUM> (referring to <FIG>). In embodiments, the cap <NUM> may be coupled to the body <NUM> by disposing the bottom surface <NUM> of the cap <NUM> against the top side <NUM> of the body <NUM> and inserting and securing suitable fasteners into the one or more fastener holes <NUM> and the one or more fastener holes <NUM>.

<FIG> illustrates a view of the cover <NUM>. The cover <NUM> may be configured to align and/or match the shape of the opening <NUM> (referring to <FIG>) of the body <NUM> (referring to <FIG>). In embodiments, the cover <NUM> may be disposed on the body <NUM> in the opening <NUM> to seal the interior of the body <NUM> from an exterior. In embodiments, the cover <NUM> may be any suitable size, height, shape, and combinations thereof. The cover <NUM> may comprise any suitable materials. Without limitations, the suitable materials may be metals, nonmetals, polymers, composites, and any combinations thereof. As illustrated a first portion <NUM> of the cover <NUM> may be in the shape of a rectangle. In embodiments, the dimensions of the first portion <NUM> may be similar or equivalent to those of the remaining portion of the opening <NUM> disposed in the third side <NUM> (referring to <FIG>) of the body <NUM>. The first portion <NUM> of the cover <NUM> may be coupled to a second portion <NUM> of the cover <NUM>. As illustrated, the first portion <NUM> may be perpendicular to the second portion <NUM>. In one or more embodiments, the second portion <NUM> may generally be in the shape of a rectangle with a curvilinear line disposed at a distal end of the second portion <NUM> from where the second portion <NUM> is coupled to the first portion <NUM>. In these embodiments, the dimensions of the second portion <NUM> may be similar or equivalent to those of the portion of the opening <NUM> disposed in the second side <NUM> (referring to <FIG>) of the body <NUM>. In embodiments, the cover <NUM> may be coupled to the body <NUM> through any suitable means, including, but not limited to the use of suitable fasteners.

<FIG> illustrate a view of the nose piece <NUM>. <FIG> illustrates an isometric top view of the nose piece <NUM>, and <FIG> illustrates an isometric bottom view of the nose piece <NUM>. With reference to both <FIG>, the nose piece <NUM> may be configured to be disposed below and coupled to the body <NUM> (referring to <FIG>). As illustrated, the nose piece <NUM> may comprise a first cylindrical portion <NUM>, a transitional ring <NUM>, and a second cylindrical portion <NUM>. The first cylindrical portion <NUM> may be any suitable size, height, shape, and combinations thereof. As illustrated, the first cylindrical portion <NUM> may have a circular cross-section. In one or more embodiments, the first cylindrical portion <NUM> may have a uniform or constant diameter with respect to the height of the first cylindrical portion <NUM>. The first cylindrical portion <NUM> may be disposed at a first end <NUM> of the transitional ring <NUM>, and the second cylindrical portion <NUM> may be disposed at a second end <NUM> of the transitional ring <NUM> opposite to the first cylindrical portion <NUM>.

The transitional ring <NUM> may have a circular cross-sectional shape. The diameter of the transitional ring <NUM> varies between the first end <NUM> and the second end <NUM>. The diameter of the transitional ring <NUM> increases from the first end <NUM> to the second end <NUM>. The second cylindrical portion <NUM> may be any suitable size, height, shape, and combinations thereof. As illustrated, the second cylindrical portion <NUM> may have a circular cross-section. In one or more embodiments, the second cylindrical portion <NUM> may have a uniform or constant diameter with respect to the height of the second cylindrical portion <NUM>. The diameter of the second cylindrical portion <NUM> is greater than the diameter of the first cylindrical portion <NUM>. The first cylindrical portion <NUM> and the transitional ring <NUM> is inserted into the bottom side <NUM> (referring to <FIG>) of the body <NUM>. As the first cylindrical portion <NUM> and the transitional ring <NUM> are inserted, the second cylindrical portion <NUM> abuts the bottom side <NUM>. Without limitations, the nose piece <NUM> is secured or coupled to the body through any suitable means, including, but not limited to, an adhesive.

<FIG> illustrates a side view of the interior of the body <NUM>. As illustrated, a LED <NUM> may be disposed at least partially through the top side <NUM> of the body <NUM>. The LED <NUM> may be configured to emit a light when current flows through it. In one or more embodiments, the LED <NUM> may comprise leads <NUM>, wherein the leads <NUM> may be inserted through the LED hole <NUM> (referring to <FIG>) of the top side <NUM> into the interior of the body <NUM>. The eddie-bolt inspection tool <NUM> (referring to <FIG>) comprises a first position switch <NUM> and a second position switch <NUM> disposed within the body <NUM>. In embodiments, both the first position switch <NUM> and the second position switch <NUM> may be configured to open and close to complete or break an electrical circuit. As illustrated, the first position switch <NUM> may be disposed in the central bore <NUM> (referring to <FIG>) of the valve body <NUM> (referring to <FIG>) of the valve <NUM> (referring to <FIG>), wherein the valve body <NUM> is disposed within the main bore <NUM> (referring to <FIG>) of the first internal compartment <NUM>. In one or more embodiments, the spring (not shown) may be disposed over and around the first position switch <NUM> within the valve body <NUM>. In embodiments, the first position switch <NUM> may comprise switch leads <NUM>, wherein the switch leads <NUM> may be accessible through the compartment opening <NUM> (referring to <FIG>) and the slot <NUM> (referring to <FIG>). As illustrated, the second position switch <NUM> may be disposed in the second internal compartment <NUM>. In embodiments, the second position switch <NUM> may comprise switch leads <NUM>, wherein the switch leads <NUM> may be accessible through a central bore formed in the second internal compartment <NUM>.

<FIG> illustrates another side view of the interior of the body <NUM> with the cap <NUM> coupled to the body <NUM>. As illustrated, the eddie-bolt inspection tool <NUM> (referring to <FIG>) may further comprise a battery holder <NUM> and a battery <NUM>. In embodiments, the battery holder <NUM> may be any suitable size, height, shape, and combinations thereof capable of housing the battery <NUM>. As illustrated, the battery holder <NUM> may be disposed onto the interior of the first side <NUM> abutting the interior of the third side <NUM> and the first wall <NUM> (referring to <FIG>) of the second internal compartment <NUM> (referring to <FIG>). The battery holder <NUM> may comprise terminals <NUM>, wherein the terminals <NUM> may be configured to couple to other components of an electrical circuit. In one or more embodiments, the battery <NUM> may be disposed on top of and partially into the battery holder <NUM>. The battery <NUM> may be any suitable power supply configured to provide power to the eddie-bolt inspection tool <NUM>.

With reference to both <FIG>, in one or more embodiments, one of the switch leads <NUM> of the first position switch <NUM> may be coupled to one of the switch leads <NUM> of the second position switch <NUM>. In one or more embodiments, another one of the switch leads <NUM> of the first position switch <NUM> may be coupled to one of the leads <NUM> of the LED <NUM>. In one or more embodiments, another one of the switch leads <NUM> of the second position switch <NUM> may be coupled to one of the terminals <NUM> of the battery holder <NUM>. In one or more embodiments, another one of the leads <NUM> of the LED <NUM> may be coupled to another one of the terminals <NUM> of the battery holder <NUM>. Without limitations, the coupling may occur through any suitable means including, but not limited to, soldering.

With reference to <FIG>, during operations, an operator may calibrate the eddie-bolt inspection tool <NUM> prior to measuring the height and swage of one or more eddie-bolts. In one or more embodiments, the eddie-bolt inspection tool <NUM> may be disposed onto a depth micrometer (not shown), wherein the depth micrometer may be partially inserted into the body <NUM> until the LED <NUM> emits a light, thereby designating an initial minimum value. Without limitations, the designated minimum value may be any suitable number ranging from about <NUM> to about <NUM>. In one or more embodiments, the designated minimum value may be a suitable number from about <NUM> to about <NUM>. If the initial minimum value is less than a designated minimum value, the operator may remove the cap <NUM> and dispose one or more shims (not shown) about each of the one or more fastener holes <NUM> to increase the minimum value. In these embodiments, the operator may recouple the cap <NUM> to the body <NUM> and use the depth micrometer to verify that the one or more shims adjusted the minimum value to be equivalent to the designated minimum value.

In embodiments, the operator may further insert the depth micrometer to determine an initial maximum value. The initial maximum value may be determined when the LED <NUM> stops emitting the light. If the initial maximum value is less than a designated maximum value, the operator may remove the fastener disposed in the shim recess <NUM> and dispose one or more shims (not shown) about the one of the one or more fastener holes <NUM> in the shim recess <NUM> to increase the maximum value. In these embodiments, the operator may recouple the fastener to the cap <NUM> and use the depth micrometer to verify that the one or more shims adjusted the maximum value to be equivalent to the designated maximum value. Without limitations, the designated maximum value may be any suitable number ranging from about <NUM> to about <NUM>. In one or more embodiments, the designated maximum value may be a suitable number from about <NUM> to about <NUM>. In embodiments, the designated minimum and maximum values of swage for an eddie-bolt may be the diameter of the first cylindrical portion <NUM> of the nose piece <NUM>.

Once calibrated, the eddie-bolt inspection tool <NUM> may be utilized to visually indicate that one or more eddie-bolts have a height and swage within an allowable tolerance (for example, within the designated minimum and maximum values). In embodiments, the eddie-bolt inspection tool <NUM> may be disposed over the top of an eddie-bolt, wherein the top of the eddie-bolt may be partially inserted into the nose piece <NUM>. If the top of the eddie-bolt is not flush with the internal diameter of the second cylindrical portion <NUM> of the nose piece <NUM>, the LED <NUM> does not emit a light, thereby signaling that the eddie-bolt has not been properly swaged. In embodiments, the bottom side <NUM> of the body <NUM> may not be seated flush with an external surface around the eddie-bolt if the eddie-bolt is not properly swaged. In those embodiments, valve <NUM> may not engage with the top of the eddie-bolt. In one or more embodiments, a downward force may be applied to the eddie-bolt inspection tool to cause the top of the eddie-bolt to push against the valve <NUM>. In these embodiments, the valve <NUM> may translate vertically and compress the spring disposed around the first position switch <NUM>. In embodiments, the electrical circuit comprising the battery <NUM>, the LED <NUM>, the first position switch <NUM>, and the second position switch <NUM> may initially be open, wherein the LED <NUM> is not provided with current to actuate and emit a light. The second position switch <NUM> may initially be set to closed, and the first position switch <NUM> may initially be set to open. During operations, as the valve <NUM> translates, the electrical circuit may close as the top of the eddie-bolt actuates the first position switch <NUM> to close, thereby providing current to the LED <NUM>, where the LED <NUM> may emit a light. If the valve <NUM> translates past the designated maximum value, the electrical circuit may open and stop current from flowing to the LED <NUM>. In embodiments, as the valve <NUM> translates past the designated maximum value, the second position switch <NUM> may be actuated to open to stop the emission of light from the LED <NUM>.

The present disclosure may provide numerous advantages, such as the various technical advantages that have been described with respective to various embodiments and examples disclosed herein. Other technical advantages will be readily apparent to one skilled in the art from the following figures, descriptions, and claims. Moreover, while specific advantages have been enumerated in this disclosure, various embodiments may include all, some, or none of the enumerated advantages.

Claim 1:
An eddie-bolt inspection tool (<NUM>) for measuring the height and swage of a bolt, comprising:
a body (<NUM>);
a valve (<NUM>);
a light-emitting diode, LED (<NUM>);
a battery (<NUM>);
a first position switch (<NUM>);
a second position switch (<NUM>);
a cap (<NUM>);
a nose piece (<NUM>) secured or coupled to the body (<NUM>); and
a cover (<NUM>);
wherein the cap (<NUM>) is disposed on top of the body (<NUM>), wherein the body (<NUM>) is disposed on top of the nose piece (<NUM>), where the nose piece (<NUM>) is at least partially disposed within the body (<NUM>), wherein the cover (<NUM>) is disposed around and on at least a portion of the body (<NUM>), wherein the body (<NUM>) comprises:
a first side (<NUM>);
a second side (<NUM>);
a third side (<NUM>);
a fourth side (<NUM>); and
an opening (<NUM>),
wherein the nose piece (<NUM>) comprises a first cylindrical portion (<NUM>), a transitional ring (<NUM>), and a second cylindrical portion (<NUM>), the first cylindrical portion (<NUM>) disposed at a first end (<NUM>) of the transitional ring (<NUM>), the second cylindrical portion (<NUM>) is disposed at a second end (<NUM>) of the transitional ring (<NUM>), the first cylindrical portion (<NUM>) and the transitional ring (<NUM>) inserted into a bottom side (<NUM>) of the body (<NUM>), wherein a diameter of the transitional ring (<NUM>) increases from the first end (<NUM>) to the second end (<NUM>), wherein a diameter of the second cylindrical portion (<NUM>) is greater than the diameter of the first cylindrical portion (<NUM>), the eddie-bolt inspection tool (<NUM>) being arranged such that a top of an eddie-bolt may be partially inserted into the nose piece (<NUM>) and, if the top of the eddie-bolt is not flush with the internal diameter of the second cylindrical portion (<NUM>) of the nose piece (<NUM>), the LED (<NUM>) does may not emit a light, thereby signaling that the eddie-bolt has not been properly swaged.