Valve handle and dual valve assembly having valve handle

Abstract

Valve handles and dual valve assemblies having handles are disclosed herein. An example dual valve assembly includes a first valve having a first shaft. The first valve has a plate with a notch. The dual valve assembly also includes a second valve having a second shaft. The dual valve assembly also includes a handle coupled to the first shaft and the second shaft such that when the handle is rotated, the first shaft and the second shaft are simultaneously rotated. The handle includes a body and a flexible arm coupled to and extending from the body. The flexible arm has a locking edge sized to fit within the recess to limit rotation of the handle relative to the first and second valves.

Description

Technical Field

[0001] The present disclosure relates generally to valves and, more particularly, to valve handles and dual valve assemblies having the same. Background Art

[0002] Valves and other process control devices are often used to control the flow of fluids (e.g., wastewater, oil, gas, etc.). Some valve assemblies include two valves to be operated simultaneously, so that when one valve is closed, the other valve is opened, and vice versa. A single handle is often coupled to both valves, which can be used to operate both valves simultaneously. Summary of the invention

[0003] The example double valve assembly disclosed herein includes a first valve having a first axis. The first valve has a plate with a notch. The double valve assembly also includes a second valve having a second axis. The double valve assembly also includes a handle coupled to the first axis and the second axis such that when the handle is rotated, the first axis and the second axis are simultaneously rotated. The handle includes a body and a flexible arm coupled to and extending from the body. The flexible arm has a locking edge sized to fit within the notch to limit rotation of the handle relative to the first valve and the second valve.

[0004] The example handle disclosed herein includes a body having a first end and a second end opposite the first end. The first end has a first tab with a first opening and a second tab with a second opening. Each of the first opening and the second opening is configured to receive a rotatable component. The handle also includes a flexible arm connected to the body and extending from the body. The flexible arm has a first portion and a second portion. The first portion has a first end and a second end opposite the first end. The first end of the first portion is connected to the second portion by a bend. The size of the bend is suitable for fitting into the recess to prevent rotation of the handle. When the second end of the first portion is moved toward the body, the bend of the flexible arm is pivoted away from the body to allow rotation of the handle.

[0005] The example method disclosed herein includes printing a handle via a three-dimensional (3D) printer. The handle includes a body having a first end and a second end opposite the first end. The first end has a first tab with a first opening and a second tab with a second opening. Each of the first opening and the second opening is configured to receive a rotatable component. The handle also includes a flexible arm extending from the body. The flexible arm has a first portion and a second portion. The first portion has a first end and a second end opposite the first end. The first end of the first portion is connected to the second portion by a bend. The size of the bend is suitable for fitting in a recess to prevent rotation of the handle. When the second end of the first portion is moved toward the body, the bend of the flexible arm is pivoted away from the body to allow rotation of the handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 is a schematic diagram of an example pressure relief system having an example dual valve assembly including an example handle. The example handle is shown in a first position.

[0007] Figure 2 yes Figure 1 Schematic diagram of an example handle in a second position.

[0008] Figure 3 yes Figure 1 A side view of a physical implementation of an example pressure relief system showing an example handle.

[0009] Figure 4 yes Figure 3 A perspective view of an example pressure relief system.

[0010] Figure 5 It is possible to Figure 1 A perspective view of an example handle of an example dual valve assembly connection implementation.

[0011] Figure 6 yes Figure 5 Another perspective view of an example handle.

[0012] Figure 7 yes Figure 5 A side view of an example handle. Figure 7 An example flexible arm of an example handle is shown in an intermediate position.

[0013] Figure 8 Shows Figure 7 An example handle in which an example flexible arm has been moved.

[0014] Fig. 9 is along Figure 5 The line CC intercepts Figure 5 A cross-sectional view of an example handle.

[0015] Fig.10 yes Figure 5 A perspective view of the end of an example handle.

[0016] Fig.11 It shows that it can be Figure 5 The example extension is implemented on the example handle.

[0017] Fig.12 is a perspective view of another example handle that can be used with Figure 1 An example dual valve assembly connection implementation.

[0018] Fig.13 Shown with additional components Fig.12 An example handle for .

[0019] Fig.14 yes Fig.13 Cross-sectional view of an example handle taken along line FF.

[0020] Fig.15 is a perspective view of an example handle assembly including a Figure 1 An example handle of an example dual valve assembly connection implementation.

[0021] Fig.16 yes Fig.15 An example handle component and Figure 1 A cross-sectional view of an example valve of an example dual-valve assembly.

[0022] Fig.17 is a perspective view of another example handle that can be used with Figure 1 An example dual valve assembly connection implementation.

[0023] Fig.18 Shows Fig.17 An example handle with Figure 1 Example valve connections for an example dual valve assembly.

[0024] Fig.19 An example additive manufacturing machine is illustrated that may be used to form any of the example handles and / or handle assemblies disclosed herein.

[0025] Fig. 20 is a flow chart representing an example method of manufacturing an example handle and / or an example handle assembly.

[0026] In general, the same reference numbers are used to refer to the same or like parts throughout the drawings(s) and the accompanying written description.The drawings are not drawn to scale.

[0027] Unless otherwise specifically stated, descriptors such as "first", "second", "third", etc., used herein, and do not intend or otherwise indicate any meaning of priority, physical order, arrangement in a list, and / or any manner of ordering, but are merely used as labels and / or arbitrary names to distinguish elements for ease of understanding the disclosed examples. In some examples, the descriptor "first" may be used to refer to an element in the detailed description, while the same element may be referred to in the claims by different descriptors (such as "second" or "third"). In such cases, it should be understood that such descriptors are only used to clearly identify those elements that may, for example, share the same name. As used herein, "approximately" and "about" refer to dimensions that may be imprecise due to manufacturing tolerances and / or other real-world defects. DETAILED DESCRIPTION

[0028] Process control devices, such as valves, are generally used to control the flow of fluids. Some valves or valve systems include two valves that operate simultaneously, referred to herein as a double valve assembly or double valve system. For example, a double valve assembly may include a first valve having a first shaft and a second valve having a second shaft, the first shaft being rotated to change the state of the first valve (e.g., between an open state and a closed state), and the second shaft being rotated to change the state of the second valve. The first valve and the second valve may be, for example, ball valves. In some examples, the double valve assembly includes a handle that is disposed between the first valve and the second valve and is coupled to the first valve and the second valve. In particular, the handle is coupled to both the first shaft and the second shaft of the first valve and the second valve. Therefore, when the handle is rotated, the valve is operated simultaneously (e.g., moved to another position, opened, closed, etc.). In some examples, the valve is a three-way ball valve that fluidically couples the pressure reducing valve to the first pilot valve and / or the second pilot valve based on the position of the handle. For example, when the handle is in the first position, the valve is in a first state that fluidically couples the pressure reducing valve to the first pilot valve. When the handle is rotated (e.g., 180°) to the second position, the valve is in a second state in which the pressure reducing valve is fluidly coupled to the second pilot valve. In some examples, the handle can be rotated to a third position (e.g., between the first position and the second position), in which the valve is operated in a third state in which the pressure reducing valve is fluidly coupled to the two pilot valves. In other examples, the valve can be other types of valves and / or arranged in other configurations. For example, the double valve assembly can be configured so that the valves are in opposite states. For example, when the first valve is in a closed state, the second valve is in an open state. When the handle is rotated (e.g., 180°), the first valve is opened and the second valve is closed. In other examples, the double valve assembly can be configured so that the first valve and the second valve are in the same state.

[0029] Disclosed herein are example valve handles and handle assemblies for dual valve assemblies, and example methods for manufacturing such example handles. The example handles disclosed herein can be configured to be shorter than known handles, which enables the example handles to be used in smaller, more compact systems. The example handles disclosed herein also include a locking feature that enables the handle to be locked in a specific position relative to a first valve and a second valve. The example handles disclosed herein are easier and cheaper to manufacture than known handles.

[0030] Some example handles and handle assemblies disclosed herein are formed via an additive manufacturing process, sometimes referred to as three-dimensional (3D) printing. As used herein, additive manufacturing or 3D printing refers to a manufacturing process in which an object is formed by adding continuous adjacent layers of material (e.g., the same material). These layers are welded or combined together (e.g., naturally or via a subsequent welding process) to form an object. The material can be any material, such as metal, plastic, concrete, etc. Examples of additive manufacturing include stereolithography (SLA), selective laser sintering (SLS), fused deposition molding (FDM), and multi-jet molding (MJM). 3D printing is advantageous because it produces less material waste than known machining operations. Therefore, 3D printing example handles result in relatively low-cost handles and handle assemblies. In addition, compared with many other known manufacturing techniques, 3D printing produces excellent tolerances.

[0031] Turning now to the accompanying drawings, Figure 1 1 is a schematic diagram of an example pressure relief device or system 100 in which the example handles and handle assemblies disclosed herein may be implemented. In the illustrated example, the pressure relief system 100 includes a pressure relief valve 102. In the illustrated example, the pressure relief valve 102 is fluidically coupled to a fluid container 104 (e.g., a storage tank). The pressure relief valve 102 is configured to discharge or release pressure (e.g., gas) from the fluid container 104. For example, the fluid container 104 may be filled with a volatile or flammable fluid, such as liquefied petroleum gas or propane. If vapor pressure builds up in the fluid container 104 (e.g., due to rising atmospheric temperatures), the pressure relief valve 102 opens to release / exhaust vapor from the fluid container 104.

[0032] In the illustrated example, the pressure relief valve 102 has a passage 106 between an inlet 108 and an outlet 110. The inlet 108 is in fluid communication with the fluid container 104, and the outlet 110 is open to the atmosphere. The pressure relief valve 102 includes a flow control member 112, referred to herein as a valve plug 112, disposed in the passage 106. The valve plug 112 can be in a closed position ( Figure 1 The valve plug 112 is configured to move between a closed position (as shown in the figure) and an open position. In the closed position, the valve plug 112 prevents fluid from flowing through the passage 106 to the outlet 110. In the open position, the valve plug 112 allows fluid to flow through the passage 106 to the outlet 110. The valve plug 112 is usually maintained in the closed position until the pressure in the fluid container 104 reaches a set pressure (e.g., a threshold pressure), at which time the valve plug 112 moves to the open position to exhaust the vapor pressure in the fluid container 104. In the illustrated example, the pressure reducing valve 102 has a control spring 114 that biases the valve plug 112 to the closed position.

[0033] In the illustrated example, the pressure relief system 100 includes a first pilot valve 116 and a second pilot valve 118, sometimes referred to as a dual pilot assembly. The pilot valves 116, 118 may be implemented as pressure regulators. Generally speaking, during operation of the pressure relief system 100, one pilot valve is active and the other pilot valve is inactive (sometimes referred to as offline or standby). As further disclosed in detail herein, the active pilot valve controls the operation of the pressure relief valve 102. Figure 1 In the illustrated configuration, the first pilot valve 116 is active and the second pilot valve 118 is inactive. As disclosed in further detail herein, the pilot valves 116, 118 may be switched between active and inactive.

[0034] In the illustrated example, the pressure relief system 100 includes a dual valve assembly 120, which includes a first valve 122, a second valve 124, and an example handle 126. The handle 126 is an example of a handle disclosed herein. Other example handles and handle assemblies are disclosed herein, which can be similarly implemented in connection with the dual valve assembly 120. The handle 126 is coupled to both the first valve 122 and the second valve 124. The handle 126 is used to operate the two valves 122, 124 simultaneously. For example, the first valve 122 has a first shaft 128 (shown in phantom), and the second valve 124 has a second shaft 130 (shown in phantom). The first shaft 128 is coupled to a flow control member (e.g., a ball, a disk, a plug, etc.) in the first valve 122, and the second shaft 130 is coupled to a second flow member in the second valve 124. The handle 126 is coupled to the first shaft 128 and the second shaft 130 (e.g., via a nut). Thus, when the handle 126 is rotated, the handle 126 simultaneously rotates the first shaft 128 and the second shaft 130, thereby simultaneously operating the two valves 122 and 124. In some examples, the first valve 122 and the second valve 124 are three-way ball valves. However, in other examples, the first valve 122 and the second valve 124 can be implemented as other types of valves (e.g., butterfly valves, ball valves, etc.).

[0035] In the illustrated example, the pressure relief system 100 includes a first fluid line 132 that fluidly couples the inlet pressure of the pressure relief valve 102 to the first valve 122 and a second fluid line 134 that fluidly couples the pressure on the back side of the valve plug 112 to the second valve 124. Figure 1 In the example of FIG. 1 , the handle 126 is in a position where the valves 122, 124 fluidly couple the inlet pressure and the back pressure to the first pilot valve 116. Thus, the first pilot valve 116 is the active pilot valve. The valves 122, 124 block or prevent fluid from flowing to the second pilot valve 118. Thus, the second pilot valve 118 is inactive.

[0036] The first pilot valve 116 includes a pilot valve plug 136, a pilot control spring 138, and a pilot diaphragm 140. The second pilot valve 118 includes similar components to the first pilot valve 116. The movable pilot valve (the first pilot valve 116) senses changes in the inlet pressure of the pressure reducing valve 102. As long as the inlet pressure remains below the set pressure, the flow control element 112 remains in the closed position. In particular, the pilot control spring 138 holds the pilot valve plug 136 closed. In this way, the inlet pressure passes through the movable pilot valve (the first pilot valve 116) and enters the back side of the valve plug 112, and then is recorded as a load pressure on the top of the valve plug 112. In addition to the pilot load pressure, the force from the control spring 114 provides the force to hold the valve plug 112 in the closed position.

[0037] If the inlet pressure exceeds the set pressure, the pressure on the pilot diaphragm 140 overcomes the pilot control spring 138 and opens the pilot valve plug 136. The active pilot valve (first pilot valve 116) then exhausts the load pressure from the back side of the valve plug 112. When the inlet pressure is higher than the set pressure, the active pilot valve (first pilot valve 116) continuously exhausts the fluid. The inlet pressure imbalance overcomes the main spring force and opens the valve plug 112. In particular, the valve plug 112 moves to the Figure 1 The left side of the fluid container 104 is moved to the open position, thereby venting the steam pressure in the fluid container 104.

[0038] When the first pilot valve 116 is active, the second pilot valve 118 is inactive. This enables an operator (e.g., a person) to perform maintenance or testing on the standby pilot valve. For example, the operator can remove the second pilot valve 118, test the second pilot valve 118 to ensure that the second pilot valve 118 is operating correctly, and / or replace the second pilot valve 118. In this example, the dual valve assembly 120 is configured so that the handle 126 points to the inactive pilot valve. For example, in Figure 1 , the handle 126 points toward the second pilot valve 118. This helps indicate to the operator which pilot valve can be serviced.

[0039] To switch which pilot valve is active and inactive, the handle 126 can be rotated 180° to Figure 2 The handle 126 is rotated to control the valves 122 and 124 simultaneously. Figure 2When in the position shown, valves 122, 124 fluidly couple the inlet and back pressures to the second pilot valve 118 and disconnect the first pilot valve 116 from the inlet and back pressures. In this way, the second pilot valve 118 becomes the active pilot valve, and the first pilot valve 116 is the inactive pilot valve. The operator can then perform maintenance on the first pilot valve 116. The operator can move the handle 126 back and forth to switch the pilot valves so that each pilot valve can be tested. This example configuration is advantageous because one pilot valve is always active and control of the pressure reducing valve 102 can be maintained. Therefore, the pressure reducing system 100 can remain active even when maintenance or testing is performed on the pilot valve. Therefore, the pressure reducing system 100 does not need to be offline. In some examples, the handle 126 can also be moved to an intermediate position (in Figure 1 and Figure 2 1 ), in which position the valves 122, 124 fluidly couple the inlet pressure and the back pressure to the two pilot valves 116, 118. In this case, both pilot valves 116, 118 are active. However, in most applications, only one pilot valve is active and the other pilot valve is inactive.

[0040] Figure 3 and Figure 4 An example physical implementation of an example pressure relief system 100 is shown, including an example pressure relief valve 102, example pilot valves 116, 118, and an example dual valve assembly 120, which includes example valves 122, 124 and an example handle 126. Figure 3 and Figure 4 , the handle 126 is directed toward the second pilot valve 118. In this way, the first pilot valve 116 is the active pilot valve and the second pilot valve 118 is the inactive pilot valve. The handle 126 can be rotated 180° so that the handle 126 points to the first pilot valve 116 to switch the active pilot valve / inactive pilot valve. In some examples, the handle 126 can also be rotated 90° (from the current position) so that the handle 126 points away from the pressure reducing valve 102, which corresponds to a valve position in which both the pilot valves 116 and 118 are active. In the illustrated example, the handle 126 is connected to the first shaft 128 ( Figure 1 ) and the second shaft 130 ( Figure 4 ). Thus, when the handle 126 is rotated, the handle 126 simultaneously operates both valves 122, 124. This ensures that one of the pilot valves 116, 118 is always active, so that the pressure relief system 100 remains functional and does not need to be taken offline for maintenance.

[0041] like Figure 4As shown, the first valve 122 has a plate 400. The plate 400 can be part of the valve body of the first valve 122, or can be a separate component coupled to the valve body. In this example, the plate 400 is square. The plate 400 has one or more notches (e.g., slots, grooves, etc.). For example, Figure 4 As shown, the plate 400 has a first notch 402a, a second notch 402b, and a third notch 402c. The notches 402a-402c correspond to the three rotational positions of the handle 126. In the illustrated example, the handle 126 includes a flexible arm 404. The flexible arm 404 can be disposed in one of the specific notches 402a-402c at a specific position. For example, Figure 4 In the position shown, the flexible arm 414 is in the first recess 402a. This holds the handle 126 in place and prevents the handle 126 from being rotated. To rotate the handle 126, the operator can move the flexible arm 404 out of the first recess 402a (e.g., by pressing on the flexible arm 404), then rotate the handle 126 to another position and release the flexible arm 404. If the handle 126 is rotated 90° (so that the handle 126 points outward), the flexible arm 414 is disposed in the second recess 402b, which corresponds to an intermediate position in which both pilot valves 116, 118 are active. If the handle 126 is rotated from Figure 4 The position shown is rotated 180°, and the flexible arm 404 is disposed in the third recess 42b, which corresponds to the first pilot valve 116 being inactive. Thus, the recesses 402a-402c and the flexible arm 404 enable the handle 126 to be maintained in a specific position corresponding to a specific state of the valves 122, 124. In some examples, the second valve 124 includes a plate similar to the first valve 122. However, in this example, the handle 126 only interfaces with the plate 400 of the first valve 122. In other examples, the handle 126 can interface with a plate on the second valve 122.

[0042] In some examples, the handle 126 can be locked, which prevents the handle 126 from being accidentally turned. For example, an operator can insert a lock 406 (e.g., a key padlock, a combination padlock, etc.) into the handle 126. In some examples, the handle 126 includes a hole or opening to receive the lock catch of the lock 406. When the lock 406 is inserted into the handle 126, the lock 406 prevents the flexible arm 404 from being moved. This prevents the handle 126 from moving from the current position until the lock 406 is removed. Additionally or alternatively, a tag can be attached to the handle 126 and / or the lock 406 to indicate certain information, such as the time when the pilot valves 116, 118 were last serviced. This may also be referred to as a lockout-tagout.

[0043] Figure 5 and Figure 61 is a perspective view of an example handle 126. The handle 126 includes a body 500 having a first end 501 and a second end 502 opposite the first end 501. The first end 501 is to be coupled to the first shaft 128 and the second shaft 130 ( Figures 1 to 4 ). In the illustrated example, the body 500 includes and / or is formed by a first wall 504, a second wall 506 opposite the first wall 504, a third wall 508 between the first wall 504 and the second wall 506, and a fourth wall 510 between the first wall 504 and the second wall 506 and opposite the third wall 508. The body 500 has a rectangular tubular shape and defines a channel 512 between the first end 501 and the second end 502. An operator can grasp the body 500 of the handle 126 and rotate the handle 126. The body 500 can be of any length. In some examples, the body 500 is relatively short (e.g., approximately 2 inches). This enables the handle 126 to be assembled within a smaller, more compact system. For example, if it is desired to place the pilot valves 116, 118 ( Figure 3 and Figure 4 ) are positioned closer together, the handle 126 can be constructed shorter to fit in the space between the pilot valves 116, 118.

[0044] like Figure 5 and Figure 6 As shown, the first end 501 of the body 500 has a first protrusion 514 and a second protrusion 516. In the illustrated example, the third wall 508 and the fourth wall 510 extend beyond the first wall 504 and the second wall 506 and form the first protrusion 514 and the second protrusion 516. The protrusions 514 and 516 correspond to the connection parts ( Figures 1 to 4 In the illustrated example, the first protrusion 514 has a first opening 518 and the second protrusion 516 has a second opening 520. The openings 518, 520 are configured to receive a rotatable component. For example, when the handle 126 is assembled with the first valve 122 and the second valve 124, the first shaft 128 ( Figure 1 ) extends into the first opening 518, and the second shaft 130 ( Figure 2 and Figure 4) extends into the second opening 520, which couples the shafts 128, 130 to the corresponding tabs 514, 516. Thus, the openings 518, 520 receive the shafts 128, 130 of the valves 122, 124, respectively. The shape or keying of the openings 518, 520 matches the shape of the shafts 128, 130. In this example, the openings 518, 520 are square, which corresponds to the shape of the shafts 128, 130. Thus, when the handle 126 is rotated, the handle 126 rotates the first shaft 128 and the second shaft 130. In other examples, the shafts 128, 130 and / or the openings 518, 520 may have different shapes (e.g., circular, star-shaped, triangular, etc.). In some examples, a nut may be screwed onto the ends of the shafts 128, 130 to couple the tabs 514, 516 to the shafts 128, 130. Although in this example, the handle 126 is disclosed as being connected to the rotating shafts of two valves, it should be understood that the example handle 126 may be used in connection with other rotatable components.

[0045] In the illustrated example, the handle 126 includes a flexible arm 404 that serves as a stopper lever. The flexible arm 404 is used to engage the first valve 122 ( Figure 4 ) of the notches 402a-402c ( Figure 4 ) to prevent the handle 126 from being rotated. The flexible arm 404 is coupled to and extends from the body 500. In the illustrated example, the flexible arm 404 has a locking end or edge 522. The locking edge 522 is sized to fit within the recesses 402a-402c ( Figure 4 ) (e.g., it acts as a stopper), which limits the rotation of the handle 126 relative to the first valve 122 and the second valve 124. In some examples, the flexible arm 404 includes at least two parts connected by a bend (e.g., a corner, a fold, etc.), which enables the flexible arm 404 to flex or bend. For example, as Figure 5 and Figure 6 As shown, the flexible arm 404 includes a first portion 524 and a second portion 526 connected by a bend 528. The bend 528 corresponds to the locking edge 522. The first portion 524 has a first end 530 (connected to the second portion 526 at the bend 528) and a second end 532 (e.g., a free end or cantilever end) opposite the first end 530. The area on the first portion 524 near the second end 532 is referred to herein as a lever body or pad 534. In the illustrated example, the lever pad 534 is enlarged or widened relative to the rest of the first portion 524. In order to move the locking edge 522 of the flexible arm 404, the operator can press the lever pad 534 inwardly (i.e., toward the body 500), such as by using the operator's thumb.

[0046] In some examples, the example handle 126 may include markings. For example, Figure 5 and Figure 6 As shown, the first wall 504 and the second wall 506 include the words "INACTIVE PILOT" and an arrow pointing to the second end 502 of the handle 126. This helps indicate to the operator which pilot valve is the inactive pilot valve. Figure 5 and Figure 6 As shown, the first wall 504 and the second wall 506 include a lock symbol (disclosed in further detail herein) proximate the first opening 538 and the second opening 600. The markings may be formed by protrusions or depressions / etchings in the surface of the first wall 504 and the second wall 506. In other examples, the markings may be printed or painted on the surface of the first wall 504 and the second wall 506.

[0047] Figure 7 is a side view of a portion of the handle 126 and the first valve 122. The flexible arm 404 is in a relaxed or neutral position. Figure 7 In the embodiment, the locking edge 522 (shown in phantom) of the flexible arm 404 is disposed in a recess (eg, recess 402a ( Figure 4 )). In this way, the handle 126 cannot rotate. Figure 8 As shown, if the second end 532 of the flexible arm 404 is pushed toward the body 500 (as shown by arrow A), such as by pushing the lever pad 534, the locking edge 522 is moved (e.g., pivoted) outwardly away from the body 500 (as shown by arrow B). In this way, the locking edge 522 can be moved out of the recess of the plate 400, which permits rotation of the handle 126. The handle 126 can then be rotated to another position. When the operator releases the lever pad 534, the flexible arm 404 retracts / extends back to the original position. Figure 7 As such, the locking edge 522 moves back toward the body 500 (and possibly into another of the recesses).

[0048] refer to Figures 5 to 8 , the handle 126 includes a shield 536. The shield 536 is connected to the third wall 508 ( Figure 5 and Figure 6 ) and extends outwardly from the third wall 508. The shield 536 surrounds at least a portion of the flexible arm 404. The shield 536 limits or prevents the flexible arm 404 from being moved laterally relative to the body 500 (in and out). Figure 7 and Figure 8 Thus, the flexible arm 404 can only move along one plane toward or away from the main body 500.

[0049] like Figure 8As shown, the shield 536 forms a stop or limiter for the lever pad 534 of the flexible arm 404. In particular, when the lever pad 534 is pressed inwardly toward the body 500, the lever pad 534 contacts or engages the shield 536. In some examples, such as Figure 7 and Figure 8 As shown, the shield 536 has an angled or chamfered edge 700. The chamfered edge 700 enables the lever pad 534 to move slightly more toward the body 500 and also creates a flat surface or area for the lever pad 534 to engage.

[0050] Fig. 9 is along Figure 5 1. A cross-sectional view of an example handle 126 taken along line CC of FIG. As described above, the flexible arm 404 is coupled to and extends from the body 500. For example, the flexible arm 404 cantilevers out from the body 500. In this example, the flexible arm 404 is coupled to and extends from the inner surface of the fourth wall 510. However, in other examples, the flexible arm 404 may be coupled to another portion of the body 500.

[0051] like Fig. 9 As shown, the flexible arm 404 includes or is composed of a plurality of parts or segments connected by a bend. In this example, the flexible arm 404 has four parts, including a first part 524, a second part 526, a third part 900, and a fourth part 902. The fourth part 902 is connected to the fourth wall 510 of the body 500 and is Fig. 9 The third portion 900 and the fourth portion 902 are connected at the first bend 904. The third portion 900 extends from Fig. 9 The first bend 904 in the second embodiment extends in a downward direction. The second portion 526 and the third portion 900 are connected at the second bend 906. The second portion 526 extends from Fig. 9 The second bend 906 in the first portion 524 extends in an upward direction. The first portion 524 and the second portion 526 are connected at a bend 528 (third bend) corresponding to the locking edge 522. The first portion 524 extends from Fig. 9 The bend 528 in the flexible arm 404 extends in a downward direction. Thus, in this example, the flexible arm 404 includes four sections connected by bends, so that the flexible arm 404 has an M-shaped profile. This arrangement of the sections 524, 526, 900, 902 and the bends 528, 904, 906 enables the flexible arm 404 to be easily bent or extended / contracted. In particular, this arrangement enables the flexible arm 404 to be easily bent or extended / contracted. Fig. 9In some examples, the flexible arm 404 is a single integral part or component. In other examples, the flexible arm 404 can have more or fewer parts and / or bends, and examples thereof can be combined with Figure 12 to Figure 14 As described above, the distal section of the first portion 524 forms the lever pad 534. When the operator presses the lever pad 534, the lever pad 534 of the first portion 524 is moved toward the body 500, which causes the bend 528 (locking edge 522) to pivot outward away from the body 500 (about the second bend 906) (as shown in FIG. Figure 8 In some examples, the body 500 and the flexible arm 404 are constructed as a single integral part or component (e.g., a unitary structure). For example, the handle 126 including the body 500 and the flexible arm 404 can be printed using an additive manufacturing machine.

[0052] exist Fig. 9 In the illustrated example, the flexible arm 404 is coupled to the body 500 in the channel 512. In the illustrated example, the third wall 508 of the body 500 has an opening 908 (e.g., a slot). The flexible arm 404 extends through the opening 908. The third portion 900 and the fourth portion 902 of the flexible arm 404 are disposed in the channel 512 of the body 500, and the first portion 524 and the second portion 526 of the flexible arm 404 are disposed outside the body 500. In this way, a portion of the flexible arm 404 is in the body 500, and a portion of the flexible arm 404 is outside the body 500.

[0053] exist Fig. 9 In the illustrated example, the handle 126 includes a protrusion 910. The protrusion 910 serves as a travel stop. In this example, the protrusion 910 is coupled to the third wall 508 of the body 500 and extends therefrom. In other examples, the protrusion 910 can extend from the second portion 526 of the flexible arm 404. The protrusion 910 limits the amount by which the first portion 524 and the second portion 526 of the flexible arm 404 can be moved toward the body 500. As a result, the protrusion 910 limits the locking edge 522 (bend 528) from being moved (e.g., pushed) toward the body 500 and moving out of the notch of the valve.

[0054] In some examples, the body 500 may include an opening for receiving an object, such as the lock 406 ( Figure 4 ). When an object is inserted into the opening, the second end 532 of the first portion 524 of the flexible arm 404 is prevented from moving toward the body 500. For example, referring back to Figure 5 and Figure 6, the first wall 504 of the body 500 has a first opening 538, and the second wall 506 has a second opening 600 aligned with the first opening 538. The first opening 538 and the second opening 600 can be referred to as lock openings. In order to lock the handle 126 in a particular position, an object such as a lock, a wire, etc. can be inserted through the first opening 538 and the second opening 600. This prevents the lever pad 534 of the flexible arm 404 from being pushed toward the body 500. As a result, the locking edge 522 cannot be moved out of the recess. This prevents someone from unlocking and rotating the handle 126. In some examples, the object can be a handle or a lock shackle (e.g., a padlock). For example, an operator can insert the lock 406 ( Figure 4 ) handle or lock catch, and then lock the lock 406. In this way, the handle 126 can not be released until someone unlocks and removes the lock 406.

[0055] Fig.10 5 is a perspective view of the second end 502 of the body 500. Fig.10 As shown, the flexible arm 404 has a first tab 1000 and a second tab 1002 extending from the first portion 524 of the flexible arm 404 (at or near the lever pad 534) toward the body 500. The tabs 1000, 1002 extend into the channel 512 of the body 500. The first tab 1000 and the second tab 1002 are spaced apart from each other. The second bend 906 of the flexible arm 404 is disposed between the first tab 1000 and the second tab 1002 (but not directly coupled thereto). In the illustrated example, the third tab 1004 extends from the second bend 906. When an object such as a lock is inserted through the opening 538, 600, the first tab 1000, the second tab 1002, and the third tab 1004 engage the lock. In this way, the first tab 1000 and the second tab 1002 prevent the lever pad 534 from being moved toward the body 500, thereby preventing the locking edge 522 ( Figure 5 ) moves away from the body 500. In addition, the third tab 1004 prevents the locking edge 522 from being bent away from the body 500 (e.g., if the user pulls the locking edge 522 directly). Although in this example, the flexible arm 404 includes two tabs, in other examples, the flexible arm 404 can include more or fewer tabs (e.g., one, three, four, etc.).

[0056] In some examples, when the flexible arm 404 is in Fig.10In the relaxed or neutral state shown, the first tab 1000 and the second tab 1002 are located between the openings 538, 600, so that only a small area of ​​the openings 538, 600 is accessible. In some examples, this allows wires or thinner objects to be inserted into the openings 538, 600. In other examples, the first tab 1000 and the second tab 1002 can extend completely through the openings 538, 600. Thus, in some examples, in order to insert larger objects, such as the lock 406 ( Figure 4 ), the operator must first move the lever pad 534 slightly away from the body 500 until the tabs 1000, 1002 are clear of the openings 538, 600. Then, the object can be inserted through the openings 538, 600, and the lever pad 534 can be released. However, in other examples, the first tab 1000, the second tab 1002, and / or the third tab 1004 can be longer or shorter.

[0057] Fig.11 An example is shown in which the first tab 1000 and the second tab 1002 include extensions 1100, 1102, respectively, which extend perpendicular to the tabs 1000, 1002. Thus, in this example, the first tab 1000 and the second tab 1002 have an L-shaped profile. The extensions 1100, 1102 increase the surface area or contact area between the first tab 1000 and the second tab 1002 and the object, which limits or reduces the tabs 1000, 1002 from curling or bending the object. For example, if a wire is inserted through the openings 538, 600, the increased surface area helps limit or prevent the first tab 1000 and the second tab 1002 from curling or bending the wire.

[0058] In some examples, the handle 126 is constructed as a single integral part or component (e.g., an integral structure). In some examples, the handle 126 is 3D printed (i.e., constructed via an additive manufacturing process). In such examples, the handle 126 is composed of multiple layers of the same material bonded together. In some examples, the handle 126 is printed vertically from the second end 502 to the first end 501. This article discloses an example 3D printing operation in more detail. In other examples, the handle 126 can be constructed via other manufacturing processes, such as casting, machining, etc. In other examples, the handle 126 can be constructed by multiple parts or components connected together. For example, the flexible arm 404 can be constructed as an independent component connected (e.g., via a weldment, via a fastener) to the body 500. In some examples, the handle 126 is composed of metal, such as 316 stainless steel. In other examples, the handle 126 can be constructed by other materials.

[0059] Fig.12 Another example handle 1200 is shown. The example handle 1200 can be connected in a similar manner to the handle 126. Figures 1 to 4 The dual valve assembly 120 of the present invention is used. In the illustrated example, the handle 1200 includes a body 1202. The body 1202 is substantially the same as the body 500 of the handle 126 disclosed above. Therefore, any of the example aspects disclosed in conjunction with the body 500 also apply to the body 1202.

[0060] exist Fig.12 In the illustrated example, the handle 1200 includes a flexible arm 1204. The flexible arm 1204 has a locking edge 1206. The size and shape of the locking edge 1206 are suitable for fitting within the recesses 402a-402c of the first valve 122 to lock the handle 1200 in a specific position. In the illustrated example, the flexible arm 1204 is coupled to the body 1202 and extends from the body 1202. In this example, the flexible arm 1204 has a first portion 1208 and a second portion 1210. The first portion 1208 is coupled to the body 1202 and extends from the body 1202 at Fig.12 1206. The first portion 1208 and the second portion 1210 are connected at a bend 1212 corresponding to the locking edge 1206. In this example, the flexible arm 1204 has a V-shaped profile. This arrangement of the portions 1208, 1210 and the bend 1212 enables the flexible arm 1204 to bend (e.g., extend or contract). The distal end of the first portion 1208 forms a lever body or pad 1214. The operator can press the lever pad 1214 to move the locking edge 1206. For example, when the operator presses the lever pad 1214, the lever pad 1214 moves toward the body 1202 (in the direction of arrow D), which moves (e.g., pivots) the locking edge 1206 away from the body 1202 (in the direction of arrow E).

[0061] exist Fig.12 In the illustrated example, the handle 1200 includes a tab 1216 coupled to and extending from the body 1202. The tab 1216 has an opening 1218. The opening is located between the second portion 1210 of the flexible arm 1204 and the body 1202. An object such as a lock can be inserted through the opening 1218. When the object is inserted into the opening 1218, the object blocks the lever pad 1214 of the flexible arm 1204 from moving toward the body 1202, which prevents the locking edge 1206 from being moved outward. In the illustrated example, the tab 1216 extends through a first slot 1220 in the first portion 1208 of the flexible arm 1204. The second portion 1210 has a second slot 1222 aligned with the tab 1218, which enables the second portion 1210 to be moved toward the body 1202 without engaging the tab 1216.

[0062] In some examples, handle 1200 includes one or more additional features or components. Fig.13An example of a handle 1200 is shown, which includes additional features or components that may be implemented. For example, Fig.13 As shown, the handle 1200 includes an extension 1300 on the lever pad 1214. The extension 1300 creates a larger area for the operator to press, which reduces operator fatigue.

[0063] exist Fig.13 In the illustrated example, the handle 1200 includes a first shield wall 1302 and a second shield wall 1304. The shield walls 1302, 1304 extend from the body 1202 and cover or surround at least a portion of the flexible arm 1204. The shield walls 1302, 1304 prevent or limit the flexible arm 1204 from being moved laterally relative to the body 1202. This constrains the flexible arm 1204 so that the flexible arm 1204 can only move toward or away from the body 1202 along one plane.

[0064] exist Fig.13 In the illustrated example, the opening 1218 includes a punch hole 1306. The punch hole 1306 reduces the size of the opening 1218 to accommodate smaller objects, such as wires. This also ensures that smaller objects are positioned closer to the flexible arm 1204 to limit the movement of the flexible arm 1204. In some examples, the punch hole 1306 is perforated and can be removed, also referred to as being punched. Therefore, if it is desired to insert a larger object into the opening 1218, the punch hole 1306 can be removed. In some examples, the punch hole 1306 can include multiple punch holes that can be removed to gradually expand the size of the opening 1218.

[0065] Fig.14 yes Fig.13 A cross-sectional view of an example handle taken along line FF. Fig.14 As shown, the handle 1200 includes a protrusion 1400. The protrusion 1400 is used as a travel stop. In this example, the protrusion 1400 is connected to the first portion 1208 of the flexible arm 1204 and extends therefrom. The protrusion 1400 extends inwardly toward the body 1202. The protrusion 1400 limits the amount by which the first portion 1208 and the second portion 1210 of the flexible arm 1204 can be moved toward the body 1202. As a result, the protrusion 1400 limits the locking edge 1206 from being moved (e.g., pushed) too far toward the body 1202 and moves out of the recess of the valve. In some examples, the handle 1200 is constructed as a single integral part or component (e.g., an integral structure). For example, the handle 1200 including the body 1202 and the flexible arm 1204 can be printed using an additive manufacturing machine.

[0066] Fig.15 The diagram shows that Figures 1 to 4The dual valve assembly shown is coupled to an example handle assembly 1500 of the embodiment. The handle assembly 1500 includes an example handle 1502 and an example bracket 1504. The handle 1502 can be coupled to the valves 122, 124 and used to operate the two valves 122, 124 simultaneously.

[0067] In the illustrated example, the handle 1502 includes a socket 1506 and a lever arm 1508 coupled to and extending from the socket 1506. In some examples, the socket 1506 and the lever arm 1508 are constructed as a single integral part or component (e.g., a unitary structure). The socket 1506 has a first end 1510, a second end 1512 opposite the first end 1510, and an opening 1514 extending through the socket 1506 between the first end 1510 and the second end 1512.

[0068] Fig.16 1 is a cross-sectional view of an example handle assembly 1500 coupled between the first valve 122 and the second valve 124. In some examples, the bracket 1504 is coupled to the first valve 122 and the second valve 124, such as by threaded fasteners (e.g., bolts). Fig.16 As shown, the first shaft 128 of the first valve 122 extends into an opening 1514 at the first end 1510 of the socket 1506, and the second shaft 130 of the second valve 124 extends into an opening 1514 at the second end 1512 of the socket 1506. The shape of the opening 1514 matches the shape or contour of the first shaft 128 and the second shaft 130. An operator can grasp the lever arm 1508 and rotate the socket 1506, which rotates both shafts 128, 130 simultaneously.

[0069] like Fig.15 As shown, bracket 1504 includes a first arm 1516 and a second arm 1518. Lever arm 1508 includes an opening 1520. When lever arm 1508 is in Fig.15 In the position shown, the first arm 1516 extends through the opening 1520 of the lever arm 1508. This can correspond to a position in which one of the pilot valves 116, 118 is active and one of the pilot valves 116, 118 is inactive. The first arm 1516 has a first opening 1522 (e.g., a lock opening). For example, the lock 406 ( Figure 4) can be inserted into the first opening 1522 in the first arm 1516, which locks the handle 1502 in place. When the object is removed, the handle 1502 can be rotated 180° to a position where the second arm 1518 extends through the opening 1520 in the lever arm 1508. This can correspond to the position where the active / inactive pilot valve is switched. The second arm 1518 has a second opening 1524 (e.g., a lock opening). An object can be inserted into the second opening 1524 to lock the handle 1502 in place. In some examples, the handle 1502 and the bracket 1504 can be printed using an additive manufacturing machine.

[0070] Fig.17 Another example handle 1700 is shown. The example handle 1700 can be used with Figures 1 to 4 The handle 1700 can be coupled to the shafts 128, 130 of the valves 122, 124 to operate the valves 122, 124 simultaneously.

[0071] In the illustrated example, the handle 1700 includes a socket 1702 and a lever arm 1704 coupled to and extending from the socket 1702. In some examples, the socket 1702 and the lever arm 1704 are constructed as a single integral part or component (e.g., a unitary structure). The socket 1702 has a first end wall 1706 with a first opening 1708 and a second end wall 1710 with a second opening 1712 opposite the first end wall 1706. When the handle 1700 is coupled to the valves 122, 124, the first shaft 128 extends into the first opening 1708 and the second shaft 130 extends into the second opening 1712. The shapes of the openings 1708, 1712 match the shapes or contours of the first shaft 128 and the second shaft 130. In this way, when the handle 1700 is rotated, the handle 1700 simultaneously rotates the shafts 128, 130.

[0072] In the illustrated example, the handle 1700 includes a plate 1714 that can be used to lock the handle 1700 in a particular position. The plate 1714 has an opening 1716. The lever 1704 extends through the opening 1716. The plate 1714 floats freely on the lever 1704. Therefore, the plate 1714 can move (e.g., slide) along the lever arm 1704. The end 1718 of the lever arm 1704 is enlarged to prevent the plate 1714 from completely sliding out of the lever arm 1704. The size and shape of the end of the plate 1714 are suitable for fitting in the recess of the valve 122, 124. For example, Fig.18 A handle 1700 is shown coupled to the first valve 122 and the second valve 124. Fig.18 As shown, the ends of the plate 1714 are disposed in the recesses 402a, 1800 of the corresponding valves 122, 124. In this way, the handle 1700 is prevented from rotating. Fig.17 and Fig.18 As shown, the lever arm 1704 has an opening 1720. For example, the lock 406 ( Figure 4 ) can be inserted through the opening 1720. When the lock is inserted through the opening 1720, the plate 1714 is prevented from moving out of the notch 402a, 1800. This locks the handle 1700 in place. To move the handle 1700 to another position, the lock is removed, the plate 1714 is pulled out of the notch 402a, 1800, and the handle 1700 can be rotated to another position.

[0073] In some examples, the socket 1702 and the lever arm 1704 are printed as a single part, and the plate 1714 is printed as a separate part on the lever arm 1704. In this way, no additional manufacturing steps are required to assemble the plate 1714 on the lever arm 1704.

[0074] Although the example handles 126, 1200, 1502, 1700 are disclosed in conjunction with operating two valves, any of the example handles 126, 1200, 1502, 1700 can be similarly used in connection with only one valve. For example, the handle 126 can be connected to only one valve, rather than two valves. As disclosed herein, the handle 126 can be locked in one or more rotational positions.

[0075] As described herein, any of the example handles 126 , 1200 , 1502 , 1700 and / or the example handle assembly 1500 may be printed or formed via an additive manufacturing machine (commonly referred to as a 3D printer). Fig.19 An example powder bed fusion machine 1900 is illustrated, which is an AM machine or 3D printer that can be used to print or form any one of the example handles 126, 1200, 1502, 1700 and / or the example handle assembly 1500. In this example, the powder bed fusion machine 1900 is shown printing one of the example handles 126. However, it should be understood that the powder bed fusion machine 1900 can be similarly used to print any one of the other example handles 1200, 1502, 1700 and / or the example handle assembly 1500.

[0076] In the illustrated example, the powder bed welding machine 1900 includes a build platform 1902 that can be moved up and down via a platform motor 1904. In order to create one or more objects, such as a handle 126, a substrate 1906 is placed on the build platform 1902. The substrate 1906 can be, for example, a sheet of metal such as stainless steel. Then, a roller 1908 spreads a thin layer (e.g., 40 microns) of powder material 1910 from a reservoir 1912 (e.g., a hopper) over the top of the substrate 1906 and the build platform 1902. The powder material 1910 can be any metal (e.g., stainless steel) and / or polymer-based material. Then, a laser 1914 applies energy to the powder material layer 1910 (in the cross-sectional shape of the 3D handle), which sinters, welds, and / or hardens the powder material 1910 to form a handle layer 126. In this example, the first layer of the handle 126 is welded or sintered to the substrate 1906. Next, build platform 1902 is moved downwardly a small amount (e.g., 0.1 millimeter (mm)) via platform motor 1904, and roller 1908 spreads another layer of powder material 1910 over build platform 1902 and over the first hardened layer(s). Laser 1914 then applies energy to powder material 1910 to harden the material onto the previous layer(s). This process is repeated to build handle 126 layer by layer. Thus, handle 126 may be constructed of multiple layers of the same material (e.g., stainless steel) bonded together. In this example, handle 126 is built vertically starting from second end 502 ( Figure 5 ). In other examples, the handle 126 can be constructed in another orientation.

[0077] Other types of powder bed fusion AM processes can be accomplished by various techniques, such as direct metal laser sintering, electron beam melting, selective heat sintering, selective laser melting, selective laser sintering, etc. Powder bed fusion uses a laser or electron beam to melt and fuse material powders together. Although some of the example handles and / or handle assemblies disclosed herein are described as being manufactured by a powder bed fusion AM machine, the example handles and / or handle assemblies disclosed herein can also be implemented with any other type of AM process or machine, such as VAT photopolymerization, material jetting, adhesive jetting, material extrusion, sheet lamination, and / or directed energy deposition.

[0078] Fig. 20 is a flow chart representing an example method 2000 for manufacturing a handle of a dual valve assembly. The example method 2000 is described in conjunction with the handle 126. However, it should be understood that the example method 2000 can be similarly performed in conjunction with any of the other example handles 1200, 1502, 1700 and / or the example handle assembly 1500.

[0079] At block 2002, the example method 2000 includes printing a handle on a substrate via a 3D printer. For example, the handle 126 may be printed via a 3D printer. Fig.19 The powder bed fusion machine 1900 is printed. In some examples, the handle 126 is printed vertically from the second end 502 to the first end 501. In some examples, the handle 126 is printed from stainless steel. Therefore, in some examples, the handle 126 includes stainless steel. In some examples, multiple handles can be printed on the substrate 1906 at the same time in a horizontal arrangement.

[0080] At block 2004, the example method 2000 includes removing the handle from the substrate. For example, the handle 126 can be removed from the substrate 1906 via a cutting tool or machine. In some examples, the handle 126 is cut from the substrate 1906 along a cutting plane between the second end 502 and the substrate 1906. In some examples, one or more post-processing operations can be performed, such as machining (e.g., drilling, stamping, etc.), painting, sandblasting, etc.

[0081] "Include" and "comprising" (and all their forms and tenses) are used herein as open-ended terms. Thus, whenever a claim adopts any form of "include" or "comprising" (e.g., comprises, includes, comprising, including, having, etc.) as a preamble or used in any type of claim statement, it should be understood that additional elements, terms, etc. may be present without exceeding the scope of the corresponding claim or narrative. As used herein, when the phrase "at least" is used as a transitional term, such as in the preamble of a claim, it is open-ended in the same manner as the terms "include" and "comprising" are open-ended. When used in the form of, for example, A, B, and / or C, the term "and / or" refers to any combination or subset of A, B, and C, such as (1) A alone, (2) B alone, (3) C alone, (4) A and B, (5) A and C, (6) B and C, and (7) A and B and C. As used herein in the context of describing structures, components, items, objects, and / or things, the phrase "at least one of A and B" is intended to refer to embodiments that include any of (1) at least one A, (2) at least one B, and (3) at least one A and at least one B. Similarly, as used herein in the context of describing structures, components, items, objects, and / or things, the phrase "at least one of A or B" is intended to refer to embodiments that include any of (1) at least one A, (2) at least one B, and (3) at least one A and at least one B. As used herein in the context of describing the execution or performance of processes, instructions, actions, activities, and / or steps, the phrase "at least one of A and B" is intended to refer to embodiments that include any of (1) at least one A, (2) at least one B, and (3) at least one A and at least one B. Similarly, as used herein in the context of describing the execution or performance of processes, instructions, actions, activities, and / or steps, the phrase "at least one of A or B" is intended to refer to an implementation that includes any of (1) at least one A, (2) at least one B, and (3) at least one A and at least one B.

[0082] As used herein, singular references (e.g., "a," "an," "first," "second," etc.) do not exclude the plural. The term "a" or "an" entity as used herein refers to one or more of that entity. The terms "a" (or "an"), "one or more," and "at least one" may be used interchangeably herein. In addition, although listed separately, multiple equipment, elements, or method actions may be implemented by, for example, a single unit or processor. In addition, although individual features may be included in different examples or claims, these features may be combined, and inclusion in different examples or claims does not mean that the combination of features is not feasible and / or disadvantageous.

[0083] In summary, it can be understood that the example valves, valve assemblies, and dual valve assemblies with example handles disclosed herein are easier to manufacture and have lower costs than known handles. The example handles and handle assemblies can be constructed to be smaller than known handles, which enables the handles or handle assemblies to be used in smaller, more compact systems.

[0084] Example methods, apparatus, and articles of manufacture are disclosed herein. Examples and example combinations disclosed herein include:

[0085] Example 1 is a dual valve assembly including a first valve having a first axis. The first valve has a plate with a notch. The dual valve assembly includes a second valve having a second axis and a handle coupled to the first axis and the second axis such that when the handle is rotated, the first axis and the second axis are rotated simultaneously. The handle includes a body and a flexible arm coupled to and extending from the body. The flexible arm has a locking edge sized to fit within the notch to limit rotation of the handle relative to the first valve and the second valve.

[0086] Example 2 includes the dual valve assembly of Example 1, wherein the flexible arm includes a first portion and a second portion connected by a bend. The bend corresponds to the locking edge.

[0087] Example 3 includes the dual valve assembly of Example 2, wherein the first portion of the flexible arm has a first end and a second end opposite the first end, the first end is coupled to the second portion at a bend, and wherein when the second end is moved toward the body, the locking edge moves away from the body.

[0088] Example 4 includes the dual valve assembly of Example 3, wherein the body includes an opening for receiving the lock, and wherein when the lock is inserted into the opening, the second end of the first portion of the flexible arm is prevented from moving toward the body.

[0089] Example 5 includes the dual valve assembly of Example 4, wherein the flexible arm includes a tab extending from the first portion of the flexible arm toward the body. The tab is to engage the lock.

[0090] Example 6 includes the dual valve assembly of any of Examples 1 to 5, wherein the flexible arm includes four sections connected by bends such that the flexible arm has an M-shaped profile.

[0091] Example 7 includes the dual valve assembly of any of Examples 1 to 6, wherein the valve body defines a channel, the flexible arm is coupled to the body in the channel, and wherein at least a portion of the flexible arm is in the channel and at least a portion of the flexible arm is outside the body.

[0092] Example 8 includes the dual valve assembly of any of Examples 1 to 7, wherein the handle includes a shield coupled to the body. The shield surrounds at least a portion of the flexible arm to limit the flexible arm from being moved laterally relative to the body.

[0093] Example 9 includes the dual valve assembly of any of Examples 1 to 8, wherein the handle includes a protrusion extending from the body to limit the locking edge from being moved toward the body.

[0094] Example 10 includes the dual valve assembly of any of Examples 1 to 9, wherein the body includes a first end and a second end opposite the first end. The first end is coupled to the first shaft and the second shaft. The body includes an arrow pointing to the second end.

[0095] Example 11 includes the dual valve assembly of any of Examples 1 to 10, wherein the handle is comprised of multiple layers of the same material bonded together.

[0096] Example 12 includes the dual valve assembly of any of Examples 1 to 11, wherein the handle comprises stainless steel.

[0097] Example 13 is a handle comprising a body having a first end and a second end opposite the first end. The first end has a first tab with a first opening and a second tab with a second opening. Each of the first opening and the second opening is configured to receive a rotatable component. The handle comprises a flexible arm coupled to the body and extending from the body. The flexible arm has a first portion and a second portion. The first portion has a first end and a second end opposite the first end. The first end of the first portion is connected to the second portion by a bend. The size of the bend is adapted to fit within a recess to prevent rotation of the handle. When the second end of the first portion is moved toward the body, the bend of the flexible arm is pivoted away from the body to permit rotation of the handle.

[0098] Example 14 includes the handle of Example 13, wherein the body includes an opening. When the object is inserted into the opening, the second end of the flexible arm is constrained from moving toward the body.

[0099] Example 15 includes the handle of Example 13 or 14, wherein the handle includes a protrusion extending from the body to limit the bending portion from being moved toward the body,

[0100] Example 16 includes the handle of any of Examples 13 to 15, further comprising a shield coupled to the body. The shield surrounds at least a portion of the flexible arm to limit the flexible arm from being moved laterally relative to the body.

[0101] Example 17 includes the handle of any of Examples 13 to 16, wherein the body and the flexible arm are constructed as a single integral part.

[0102] Example 18 is a method comprising printing a handle via a three-dimensional (3D) printer, the handle comprising a body having a first end and a second end opposite the first end. The first end has a first tab with a first opening and a second tab with a second opening. Each of the first opening and the second opening is configured to receive a rotatable component. The handle also includes a flexible arm extending from the body. The flexible arm has a first portion and a second portion. The first portion has a first end and a second end opposite the first end. The first end of the first portion is connected to the second portion by a bend. The size of the bend is suitable for fitting within a recess to prevent rotation of the handle. When the second end of the first portion is moved toward the body, the bend of the flexible arm is pivoted away from the body to allow rotation of the handle.

[0103] Example 19 includes the method of Example 18, wherein the 3D printer is a powder bed fusion machine.

[0104] Example 20 includes the method of Example 18 or 19, wherein the handle is printed from stainless steel.

[0105] Although certain example methods, apparatus, and articles of manufacture are disclosed herein, the scope of coverage of this patent is not limited thereto. On the contrary, this patent covers all methods, apparatus, and articles of manufacture that fully fall within the scope of the claims of this patent.

[0106] The following claims are incorporated into this Detailed Description by reference, with each claim standing on its own as a separate embodiment of the disclosure.

Claims

1. A double valve assembly, comprising: a first valve having a first shaft, the first valve having a plate with a notch; a second valve having a second shaft; as well as a handle coupled to the first shaft and the second shaft such that when the handle is rotated, the first shaft and the second shaft are rotated simultaneously, the handle comprising: main body; as well as A flexible arm is coupled to and extends from the body, the flexible arm having a locking edge sized to fit within the recess to limit rotation of the handle relative to the first and second valves. 2 . The dual valve assembly according to claim 1 , wherein the flexible arm comprises a first portion and a second portion connected by a bend, the bend corresponding to the locking edge.

3. The dual valve assembly of claim 2, wherein the first portion of the flexible arm has a first end and a second end opposite the first end, the first end being coupled to the second portion at the bend, and wherein, When the second end is moved toward the body, the locking edge moves away from the body.

4. The dual valve assembly of claim 3, wherein the body includes an opening for receiving a lock, and wherein: When a lock is inserted into the opening, the second end of the first portion of the flexible arm is prevented from moving toward the body.

5. The dual valve assembly of claim 4, wherein the flexible arm includes a tab extending from the first portion of the flexible arm toward the body, the tab being adapted to engage the lock.

6. The dual valve assembly of claim 1, wherein the flexible arm comprises four sections connected by bends such that the flexible arm has an M-shaped profile.

7. The dual valve assembly of claim 1, wherein the body defines a channel, the flexible arm is coupled to the body in the channel, and wherein at least a portion of the flexible arm is in the channel and at least a portion of the flexible arm is external to the body.

8. The dual valve assembly of claim 1, wherein the handle includes a shroud coupled to the body, the shroud surrounding at least a portion of the flexible arm to limit the flexible arm from being moved laterally relative to the body.

9. The dual valve assembly of claim 1, wherein the handle includes a protrusion extending from the body to limit the locking edge from being moved toward the body.

10. The dual valve assembly of claim 1, wherein the body includes a first end and a second end opposite the first end, the first end being coupled to the first shaft and the second shaft, the body including an arrow pointing toward the second end.

11. The dual valve assembly of claim 1 , wherein the handle is constructed of multiple layers of the same material bonded together.

12. The dual valve assembly of claim 11, wherein the handle comprises stainless steel.

13. A handle, comprising: a body having a first end and a second end opposite the first end, the first end having a first tab with a first opening and a second tab with a second opening, each of the first opening and the second opening being configured to receive a rotatable member; as well as a flexible arm coupled to and extending from the body, the flexible arm having a first portion and a second portion, the first portion having a first end and a second end opposite the first end, the first end of the first portion being connected to the second portion by a bend, the bend being sized to fit within a recess to prevent rotation of the handle, and wherein when the second end of the first portion is moved toward the body, the bend of the flexible arm is pivoted away from the body to permit rotation of the handle.

14. The handle of claim 13, wherein the body includes an opening, wherein the second end of the flexible arm is constrained from moving toward the body when an object is inserted into the opening.

15. The handle of claim 13, wherein the handle includes a protrusion extending from the body to restrict the bent portion from being moved toward the body.

16. The handle of claim 13, further comprising a shroud coupled to the body, the shroud surrounding at least a portion of the flexible arm to limit the flexible arm from being moved laterally relative to the body.

17. The handle of claim 13, wherein the body and the flexible arm are constructed as a single integral part.

18. A method comprising: A handle is printed via a three-dimensional (3D) printer, the handle comprising: a body having a first end and a second end opposite the first end, the first end having a first tab with a first opening and a second tab with a second opening, each of the first opening and the second opening being configured to receive a rotatable member; and a flexible arm extending from the body, the flexible arm having a first portion and a second portion, the first portion having a first end and a second end opposite the first end, the first end of the first portion being connected to the second portion by a bend, the bend being sized to fit within the recess to prevent rotation of the handle, and wherein when the second end of the first portion is moved toward the body, the bend of the flexible arm is pivoted away from the body to permit rotation of the handle.

19. The method of claim 18, wherein the 3D printer is a powder bed fusion machine.

20. The method of claim 18, wherein the handle is printed from stainless steel.

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