The present disclosure relates generally to telecommunications connection devices and, more particularly, network access point (NAP) enclosures for extending fiber optic service to end users.
Optical fiber systems are increasingly used in a variety of communications applications, including voice, video, and data transmissions, because they offer a high bandwidth for signal transmission, low noise operation, and inherent immunity to electromagnetic interference. Such systems typically require connections of optical fibers at various points in the network. For example, connection points are commonly needed to (i) connect individual optical fiber cable lengths to create a longer continuous optical fiber, (ii) create branching points that reroute fibers in the same cable in different directions as needed to provide fibers at desired locations, and (iii) connect active and passive components of the system.
One such connection point is a network access point (NAP). Conventional network access points include a rigid enclosure and have a predetermined fiber drop output angle. Such conventional network access points can cause difficulty for technicians with installation on a pole or in a pedestal/vault. Also, some conventional network access point enclosures utilize an epoxy potting assembly which is often a difficult process and make the enclosure a one-time use item.
It may be desirable to have network access point enclosures that are configured to receive a multi fiber optic cable input, for example, a cable with four to twelve fibers, and provide numerous outputs of flexible drop cables. It may be desirable to provide network access point enclosures that provide fiber management, splicing, breakout, and/or pass through capabilities in a compact assembly
It may be desirable to have network access point enclosures that are configured to receive a distribution fiber cable (i.e., a multifiber cable) input, for example, a cable with four to twelve fibers, and provide a plurality of outputs of flexible fiber optic cables that extend from the enclosure and are terminated with an adapter configured to be coupled with a fiber optic connector of a drop cable. It may be desirable to provide network access point enclosures that provide environmental seals at the ports where the flexible fiber optic output cables exit the enclosure.
It may be desirable to provide a network access point enclosure including a splice tray that is configured to be pivotal between a first orientation relative to the base and a second orientation relative to the base, wherein the splice tray is configured to form a larger angle relative to the base in the first orientation than in the second orientation such that the splice tray is configured to provide increased access to a front side of the splice tray and a rear side of the splice tray in the first orientation relative to the second orientation. It may also be desirable to provide a splice tray that is configured to prevent a cover from being coupled with a base in the first orientation and to permit the cover to be sealingly coupled with the base in the second orientation.
According to various exemplary aspects of the present disclosure, a network access point enclosure is configured to sealingly house a splice tray that is configured to pivot to provide increased access to opposite sides of the splice tray during assembly. The network access point enclosure includes a base, a cover configured to be sealingly coupled with the base to form a housing, a retainer configured to be coupled with the base, and a splice tray configured to be pivotally coupled with the retainer. The splice tray is configured to be pivoted between a first orientation relative to the base and a second orientation relative to the base, and the splice tray is configured to form a larger angle relative to the base in the first orientation than in the second orientation. The retainer includes a first engagement structure configured to receive a first portion of a support arm that extends from the splice tray to hold the splice tray in the first orientation and a second engagement structure configured to receive a second portion of a support arm to hold the splice tray in the second orientation. The base portion includes a plurality of ports configured to receive fiber optic cables. A coupling assembly is configured to couple each fiber optic cable with one of the plurality of ports such that fiber optic cable is rotatingly and slidingly fixed relative to the one port. The retainer is configured to be removed from the base when the cover is not attached to the base. The splice tray is configured to provide increased access to a front side of the splice tray and a rear side of the splice tray in the first orientation relative to the second orientation. The splice tray is configured to prevent the cover from being coupled with the base in the first orientation and to permit the cover to be sealingly coupled with the base in the second orientation.
In some embodiments, the cover is configured to be ultrasonically welded to the base.
According to various embodiments, a coupling assembly is configured to couple a fiber optic cable with one of the ports of the base, and the coupling assembly includes an adapter having a threaded interface port configured to receive a threaded coupler that is attached to and configured to rotate relative to the fiber optic cable.
In various embodiments, the fiber optic cable is configured to be sealingly coupled with the port with heat shrink.
According to some embodiments, at least one of the plurality of ports is configured to sealingly receive a drop cable.
In accordance with various exemplary aspects of the present disclosure, a network access point enclosure is configured to house a splice tray that is configured to pivot to provide increased access to opposite sides of the splice tray during assembly. The network access point enclosure includes a base, a cover configured to be sealingly coupled with the base to form a housing, a retainer configured to be coupled with the base, and a splice tray configured to be pivotally coupled with the retainer. The splice tray is configured to be pivoted between a first orientation relative to the base and a second orientation relative to the base and to form a larger angle relative to the base in the first orientation than in the second orientation. The base portion includes a plurality of ports configured to receive fiber optic cables, and each port is configured to couple with a fiber optic cable such that fiber optic cable is rotatingly and slidingly fixed relative to the one port. The splice tray is configured to provide increased access to a front side of the splice tray and a rear side of the splice tray in the first orientation than in the second orientation. The splice tray is configured to prevent the cover from being coupled with the base in the first orientation and to permit the cover to be sealingly coupled with the base in the second orientation.
In some embodiments, the retainer includes a first engagement structure configured to receive a first portion of a support arm that extends from the splice tray to hold the splice tray in the first orientation and a second engagement structure configured to receive a second portion of a support arm to hold the splice tray in the second orientation.
According to some embodiments, the retainer is configured to be removed from the base when the cover is not attached to the base.
In various embodiments, the cover is configured to be sealingly coupled with the base. For example, in some embodiments, the cover may be ultrasonically welded to the base.
According to various embodiments, the network access point enclosure further includes a coupling assembly configured to couple a fiber optic cable with one of the ports of the base, and the coupling assembly includes an adapter having a threaded interface port configured to receive a threaded coupler that is attached to and configured to rotate relative to the fiber optic cable.
In some embodiments, the fiber optic cable is configured to be sealingly coupled with the port with heat shrink.
In various embodiments, at least one of the plurality of ports is configured to sealingly receive a drop cable.
According to various aspects of the present disclosure, a network access point enclosure is configured to sealingly house a splice tray that is configured to pivot to provide increased access to opposite sides of the splice tray during assembly. The enclosure includes a base, a cover configured to be sealingly coupled with the base to form a housing, and a splice tray configured to be pivotally coupled with the base. The splice tray is configured to be pivoted between a first orientation relative to the base and a second orientation relative to the base. The splice tray is configured to form a larger angle relative to the base in the first orientation than in the second orientation, and the splice tray is configured to provide increased access to a front side of the splice tray and a rear side of the splice tray in the first orientation than in the second orientation.
In some embodiments, the splice tray is configured to prevent the cover from being coupled with the base in the first orientation and to permit the cover to be sealingly coupled with the base in the second orientation.
According to some embodiments, the network access point further includes a retainer configured to be coupled with the base. In some aspects, the retainer includes a first engagement structure configured to receive a first portion of a support arm that extends from the splice tray to hold the splice tray in the first orientation and a second engagement structure configured to receive a second portion of a support arm to hold the splice tray in the second orientation. According to various aspects, the retainer includes a third engagement structure configured to receive a portion of a second support arm that extends from the splice tray to hold the splice tray in the second orientation.
In various embodiments, the retainer is configured to be removed from the base when the cover is not attached to the base.
In some embodiments, the cover is configured to be sealingly coupled with the base. For example, in some embodiments, the cover may be ultrasonically welded to the base.
According to various aspects, the base portion includes a plurality of ports configured to receive fiber optic cables. In some aspects, each port is configured to couple with a fiber optic cable such that the fiber optic cable is rotatingly and slidingly fixed relative to the one port. According to various aspects, a coupling assembly is configured to couple a fiber optic cable with one of the ports of the base, and the coupling assembly includes an adapter having a threaded interface port configured to receive a threaded coupler that is attached to and configured to rotate relative to the fiber optic cable. According to some aspects, the fiber optic cable is configured to be sealingly coupled with the port with heat shrink.
In various aspects, at least one of the plurality of ports is configured to sealingly receive a drop cable.
As illustrated in
Referring now to
In its assembled configuration, the NAP enclosure 100 may include at least one input fiber cable and at least one output fiber cable, but the NAP enclosure 100 will typically include one input fiber cable and a plurality of output fiber cables. The input fiber cable may comprise fiber 103 or one of the fibers 104, and the output fibers comprise two or more of the fibers 104.
The coupling assembly 150 includes a port adapter 152, as illustrated in
Between the threaded portion 153 and the flange portion 154, the port adapter 152 includes a ribbed portion 155 having longitudinal ribs on an outer surface of the port adapter 153. As best illustrated in
The threaded portion 153 comprises an F81 interface port configured to threadedly receive the nut 105 of the cable 103. After the nut 105 is threadedly coupled with the threaded portion 153 to a tightened configuration, a heat shrink tubing 156 can be placed over the cable 103, the nut 105, and the port 117 and hermetically sealed at both ends to waterproof the connection between the cable 103 and the port 117.
Referring now to
After the crimp sleeve 164 is crimped onto the jacket 104′, the drop cable 104 is pulled back out of housing 110 from the bottom surface 112′ until the crimp sleeve 164 is seated against a shoulder 176 formed in a through bore 177 of the port 116 at a stepped transition from a wider through bore portion 178 to a narrower through bore portion 179, as shown in
Referring now to
The base 112 includes catches 185 extending inward from opposite walls 112′ to an interior of the base 112. The catches 185 are configured to receive the latches 183 to secure the retainer 108 to the base 112, as shown in
The retainer 108 eliminates the need for potting the cables in the base 112. The retainer 108 thus saves the mess of potting and the permanency of the potting. For example, once the cables are potted, the cables cannot be rearranged relative to the base. However, with the retainer 108, the cables can be rearranged by unlatching the latches 183 from the catches 185 to free the retainer 108 from the base 112.
The retainer 108 may also include a hinge receiver 187, and the splice tray 106 (
Referring to
The first support arm 161 includes a first end 161a and an opposite second end 161b. The first end 161a includes a first positioning member 164 extending from therefrom. The first positioning member 164 comprises two spaced apart fingers 164′ defining an opening 164″. The opening 164″ narrows at the free end of the fingers 164′, and the fingers 164′ are sufficiently flexible to permit a second positioning member that is larger than the narrowed portion of the opening 164″ to be inserted through the narrowed portion by urging the fingers 164′ apart. The first support arm 161 includes a through hole 167 proximate the first end 161a and a through hole 168 proximate the second end 161b. The through holes 167, 168 are defined by flaps 167′, 168′ are sufficiently flexible such that the flaps 167′, 168′ are configured to be urged radially outward relative to the through hole 167, 168 by the enlarged flanged free end 184′ of one of the projections 184 or by the enlarged flanged free end 169′ of one of the projections 169 as the respective projection is inserted through the through hole 167, 168. The flaps 167′, 168′ are configured to return to their rest configuration after the enlarged flanged free end 184′ or 169′ passes through the through hole 167, 168 to prevent undesired removal of the arm 161 from the projection 184 or 169. The second support arm 162 similarly includes through holes 167, 168 defined by flaps 167′, 168′, but may not include the first positioning member.
Referring again to
Referring again to
After assembly of the desired optical fiber configuration for the NAP enclosure 100 is complete, the first positioning member 164 can be removed from the second positioning member 166, and the splice tray 106 can be repositioned to a second orientation, as illustrated in
Although the first support arm 161 may be adequate to maintain the splice tray 106 in the second orientation relative to the base 112, it some aspects, the second support arm 162 may be coupled to the base 112 and the splice tray 106 for additional support. For example, the projection 169 from the one side wall 106d of the splice tray 106 is inserted through one of the through holes 167, 168 of the second support arm 162, and the projection 184 extending outward from a side 108′ of the retainer 108 adjacent to the second support arm 162 is inserted through the other one of the through holes 167, 168 of the second support arm 162.
It should be appreciated that the components of the NAP enclosure 100 may be provided to a customer in an unassembled configuration as a kit such that the customer or another third party could assemble the NAP enclosure 100 in a desired configuration.
Referring now to
The network access point enclosure 1100 further includes a fiber management and distribution tray 1120 configured to be housed in the housing 1102 and mounting hardware 1190 configured to be attached to a back wall of the housing 1102 and to mount the network access point 1100 to a strand mount or a pole mount (not shown). As shown in
The fiber management and distribution tray 1120 includes a base portion 1122, a hinge portion 1124 (e.g., a living hinge), and an upper portion 1126. The base portion 1122 includes twelve ports 1142 (
The upper portion 1126 includes various fiber management features 1136 that extend from a planar surface 1127 of the upper portion 1126. The fiber management features 1136 facilitate routing of fiber optic cables to a splice tray, a breaker, and/or a splitter in the housing 1102 while ensuring that the fiber optic cables maintain at last a minimum bend radius to prevent signal losses as the optical signal negotiates the arcuate path, curve, or bend of the fiber optic cables. The upper portion 1126 also includes a protector 1134 at a first corner 1130 of the upper portion 1126 that is proximate the first corner 1128 of the base portion 1122.
With the fiber management and distribution tray 1120 in the unfolded configuration, the fiber optic cables can be routed to the first corner 1128 of the base portion 1122 and tucked between the protector 1134 and the planar surface 1127 of the upper portion 1126. For example, the protector 1134 may be an L-shaped structure that extend perpendicularly from the planar surface 1127 and turns at an approximately 90° angle in a direction toward an outer side 1131 of the upper portion 1126. Thus, when the fiber management and distribution tray 1120 is folded at the hinge portion 1124 to the folded configuration of
Referring now to
The ports 1116 include a through bore 1160 having a first diameter portion 1162 at an exterior end 1172 of the ports 1116, a second diameter portion 1164 at a middle portion 1174 of the ports 1116, and a third diameter portion 1166 at an interior end 1176 of the ports 1116. The third diameter portion 1166 has a greater diameter than the second diameter portion 1164, which has a greater diameter than the first diameter portion 1162. A locking ring 1168, for example, a locking shaft ring, is disposed in the third diameter portion 1166 of the through bore 1160 in a press fit or interference fit such that the locking ring 1168 is retained in the third diameter portion 1166 during normal operation of the network access point 1100. The locking ring 1168 is sized to be received in an annular groove 1105 in an outer surface of the output fiber optic cable 1104 to secure the output fiber optic cable 1104 to the base 1112 of the network access point 1100.
A spacer 1169 is disposed in the second diameter portion 1164 to maintain the output fiber optic cable 1104 in a substantially central position of the through bore 1160. An O-ring or other sealing member 1170 is disposed in the second diameter portion 1164 between the spacer and the first diameter portion 1162 to provide a weathertight seal of the between the output fiber optic cables 1104 and the ports 1116.
Referring to
Another alternative embodiment of a fiber management and distribution tray 1320 is illustrated in and described with respect to
The fiber management and distribution tray 1320 includes a base portion 1322, a hinge portion 1324 (e.g., a living hinge), and an upper portion 1326. The base portion 1322 includes twelve ports 1342 aligned with the twelve ports 1116 of the base 1112. Each of the ports 1342 includes a respective opening 1332 at a top surface 1323 of the base portion 1322. The openings 1332 are contoured at the top surface 1323 of the base portion 1322 so as to direct fiber optic cables extending from the ports 1116 and through the openings 1332 toward a center region 1380 of a first end 1381 of the base portion 1322 adjacent the hinge portion 1324. The base portion 1322 also includes a pair of spaced apart guides 1382 that extend from the top surface 1323 of the base portion 1322 proximate the center region 1380 of the first end 1381. The guides 1382 are configured to guide (or funnel) the fiber optic cables extending from the openings 1332 between the guides 1382 and toward the hinge portion 1324. The guides 1382 ensure that the fiber optic cables maintain at last a minimum bend radius as the fiber optic cables pass from the base portion 1322 to the hinge portion 1324.
In the unfolded configuration of the fiber management and distribution tray 1320, the hinge portion 1324 extends in a first direction from the first end 1381 of the base portion 1322 to the upper portion 1326. The hinge portion 1324 includes protection fingers 1383 that extend in a second direction perpendicular to the first direction. The protection fingers 1383 are arranged in two rows that extend in the first direction between the base portion 1322 and the upper portion 1326. The protection fingers 1383 have end portions 1384 that extend in a direction perpendicular to the first and second direction. The end portions 1384 have free ends 1385 that are substantially at a center line between the two rows of protection fingers. As shown, the free ends 1385 of the protection fingers 1383 of one row are tapered in a direction opposite relative to the free ends 1385 of the protection fingers 1383 of the other row such that the free ends 1385 of the one row do not touch the free ends 1385 of the other row. This allows the fiber optic cables to be inserted under the free ends 1385 of the two rows, and the free ends 1385 maintain the fiber optic cables under the end portions 1385 and between the rows.
The hinge portion 1324 also includes bend limiters 1386 that extend in the second direction and are arranged in two rows that extend in the first direction. The protection fingers 1383 are between the bend limiters 1386. The bend limiters 1386 are configured to limit the extent to which the hinge portion 1324 can bend, thereby ensuring that the fiber optic cables maintain at last a minimum bend radius as the fiber optic cables pass through the hinge portion 1324.
As shown in
Once the fiber optic cables are routed, the upper portion 1326 can be rotated upward by bending at the hinge portion 1324. The bend limiters 1386 are configured to limit the extent to which the hinge portion 1324 can bend, thereby ensuring that the fiber optic cables maintain at last a minimum bend radius as the fiber optic cables pass through the hinge portion 1324.
Referring now to
One or more of the ports 3116 include a coupling assembly 150 configured to couple the output fiber optic cable 3104 to the base 3112 of the network access point 3100. The coupling assembly 3150 includes a through bore 3160 of the port 3116 and a plug 3170. The through bore 3160 tapers from a first diameter at an interior end 3162 of the port 3116 to a second diameter at an exterior end 3164 of the port 3116. The plug 3170 has an outer diameter that tapers from a first end 3172 to a second end 3174. The taper of the plug 3170 may match the taper of the through bore 3160. The plug 3170 may be a plastic, an elastomer, rubber, or the like.
As shown in
In
Referring now to
The plug 3270 has a flanged first end 3272 and a cylindrical portion 3273 that extends from the flanged first end 3272 to a second end 3274. The flanged first end 3272 has an outer diameter that is greater than the first diameter of the bore 3260, and the cylindrical portion 3273 has an outer diameter that is greater than the second diameter of the through hole 3266. In some aspects, the outer diameter of the cylindrical portion 3273 may be smaller than the first diameter of the bore 3260. In other aspects, the outer diameter of the cylindrical portion 3273 may be slightly greater than the first diameter of the bore 3260 such that the plug 3270 is compressed radially inward when inserted into the bore 3260 to provide a seal between the bore 3260 and the cylindrical portion 3273 of the plug 3270. In either case, the cylindrical portion 3273 can be inserted into the bore 3260 until the flanged first end 3272 is adjacent the interior end 3262 of the port 3216, as shown in
As best illustrated in
The circumferentially extending ridges 3275 may be configured to be received by an annular groove in an outer wall of an output fiber optic cable 3104, such as for example, a Miniflex® fiber cable or duct, to prevent relative movement between the cable and the plug 3270. It should be appreciated that the plug 3270 may also be used with an ungrooved cable or duct, and the circumferentially extending ridges 3275 would provide increased gripping force on the cable or duct. As shown, the coupling assembly 3250 is shown with the plug 3270 disposed about the output fiber optic cable 3104 such that the circumferentially extending ridges 3275 are received by the groove 3105 in the output fiber cable 3104. It should be appreciated that the space 3268 in the bore 3260 below the second end 3274 of the plug 3270 may be filled with epoxy to hold the output fiber cable 3104 and/or seal the interfaces between the port 3216, the plug 3270, and the output fiber cable 104.
Referring now to
The grommet 3370 is generally cylindrical and has an outer diameter that is greater than the second diameter of the through hole 3366. In some aspects, the outer diameter of the grommet 3370 may be smaller than the first diameter of the bore 3360. In other aspects, the outer diameter of the grommet 3370 may be slightly greater than the first diameter of the bore 3360 such that the grommet 3370 is compressed radially inward when inserted into the bore 3360 to provide a seal between the bore 3360 and the grommet 3370. In either case, the grommet 3370 can be inserted into the bore 3360 until the grommet 3370 is adjacent the end wall 3365 of the port 3316, as shown in
As best illustrated in
The plate 3380 includes a first surface 3382 facing an interior of the housing 3102 and an opposite second surface 3384 facing the base 3112 of the network access point 3100. The plate 3380 includes a cylindrical projection 3386 extending from the second surface 3384. The cylindrical projection 3386 is sized and configured to be inserted into the bore 3360 until the second surface 3384 is near to or engaged with the interior end 3362 of the port 3316, as shown in
As shown in
Referring now to
The inner wall 3492 may include an annular ridge 3495 (or a plurality of circumferentially extending ridges) extending radially inward from an inner surface 3493 of the inner wall 3492. The annular ridge 3495 may be configured to be received by an annular groove in an outer wall of an output fiber optic cable 3104, such as for example, a Miniflex® fiber cable or duct, to prevent relative movement between the cable and the inner wall 3492. It should be appreciated that the inner wall 3492 may also be used with an ungrooved cable or duct, and the annular ridge 3495 would provide increased gripping force on the cable or duct.
The cap 3470 has a flanged first end 3472 and a cylindrical portion 3473 that extends from the flanged first end 3472 to a second end 3474. The cylindrical portion 3473 is sized and arranged to be inserted into the space 3496 between the outer wall 3490 and the inner wall 3492 from an exterior of the network access point 3100. The cylindrical portion 3473 has a radial thickness that tapers from the flanged first end 3472 to the second end 3474, with the radial thickness near the flanged first end 3472 being greater than the radial distance of the space 3496 between the outer wall 3490 and the inner wall 3492. As such, when the cylindrical portion 3473 is inserted into the space 3496, the cylindrical portion 3472 is configured to urge the inner wall 3492 radially inward toward the output fiber cable 3104. The flanged first end 3472 has an outer diameter that is greater than an inside diameter of the outer wall 3490 to limit the distance that the cylindrical portion 3473 can be inserted into the space 3496 between the outer wall 3490 and the inner wall 3492.
The sleeve 3494 includes an annular ridge 3475 (or a plurality of circumferentially extending ridges) extending radially inward from an inner surface 3471 of the sleeve 3494. The annular ridge 3475 may be configured to be received by an annular groove 3105 in an outer wall of an output fiber optic cable 3104, such as for example, a Miniflex® fiber cable or duct, to prevent relative movement between the cable and the plug 3170. It should be appreciated that the sleeve 3494 may also be used with an ungrooved cable or duct, and the annular ridge 3475 would provide increased gripping force on the cable or duct. The sleeve 3494 may be a plastic, an elastomer, rubber, or the like.
As shown in
Referring now to
The inner wall 3592 may include an annular ridge 3595 (or a plurality of circumferentially extending ridges) extending radially inward from an inner surface 3593 of the inner wall 3592. The annular ridge 3595 may be configured to be received by an annular groove in an outer wall 3105 of an output fiber optic cable 3104, such as for example, a Miniflex® fiber cable or duct, to prevent relative movement between the cable and the inner wall 3592. It should be appreciated that the inner wall 3592 may also be used with an ungrooved cable or duct, and the annular ridge 3595 would provide increased gripping force on the cable or duct.
The cap 3570 has a flanged first end 3572 and a cylindrical portion 3573 that extends from the flanged first end 3572 to a second end 3574. The cylindrical portion 3573 is sized and arranged to be inserted into the space 3596 between the outer wall 3590 and the inner wall 3592 from an interior of the network access point 3100. The cylindrical portion 3573 has a radial thickness that tapers from the flanged first end 3572 to the second end 3574, with the radial thickness near the flanged first end 3572 being greater than the radial distance of the space 3596 between the outer wall 3590 and the inner wall 3592. As such, when the cylindrical portion 3573 is inserted into the space 3596, the cylindrical portion 3573 is configured to urge the inner wall 3592 radially inward toward the output fiber cable 3104. The flanged first end 3572 has an outer diameter that is greater than an inside diameter of the outer wall 3590 to limit the distance that the cylindrical portion 3573 can be inserted into the space 3596 between the outer wall 3590 and the inner wall 3592.
As shown in
Referring now to
It should be appreciated that epoxy may be used in combination with any of the aforementioned coupling assemblies to hold the output fiber cable 3104 and/or seal the interfaces between the port and the output fiber cable 3104.
Although the illustrative embodiments of the present invention have been described herein with reference to the accompanying drawings, it is to be understood that the invention is not limited to those precise embodiments, and that various other changes and modifications may be effected therein by one skilled in the art without departing from the scope or spirit of the invention.
Various changes to the foregoing described and shown structures will now be evident to those skilled in the art. Accordingly, the particularly disclosed scope of the invention is set forth in the following claims.
This application is a continuation of U.S. Nonprovisional application Ser. No. 17/749,975, filed May 20, 2022, pending, claims the benefit of U.S. Provisional Application No. 63/295,341, filed Dec. 30, 2021, and U.S. Provisional Application No. 63/191,258, filed May 20, 2021, the disclosures of which are hereby incorporated by reference herein in their entirety.
| Number | Date | Country | |
|---|---|---|---|
| 63295341 | Dec 2021 | US | |
| 63191258 | May 2021 | US |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 17749975 | May 2022 | US |
| Child | 19056499 | US |