Patent Application
20190360545
The present invention relates to a shock-absorbing device and a package thereof; and more particularly, to a shock-absorbing device that protects external elements connected thereto against excessive vibration and a shock-absorbing device package, with which a plurality of shock-absorbing devices can be conveniently packed and stored in an organized manner.
A printed circuit board plays a very important role in an electronic produce, because various kinds of high-precision electronic elements and circuits are provided on the printed circuit board. Generally, most electronic products having high-precision electronic elements are vulnerable to impact or collision. In the event an electronic product is unexpectedly subjected to an impact, the printed circuit board in the electronic product might be fiercely vibrated to cause damage to the electronic elements on the printed circuit board.
It is therefore desirable to develop a device that can prevent, for example, a printed circuit board from excessive vibration under an external force.
A primary object of the present invention is to overcome the disadvantage in the prior art electronic products by providing a shock-absorbing device that can protect an electronic element, such as a printed circuit board, against damage due to excessive vibration under an external force.
To achieve the above and other objects, the shock-absorbing device according to the present invention includes a first holding member; a second holding member movably assembled to the first holding member; and an elastic element disposed between the first and the second holding member with two ends of the elastic element pressing against the first and the second holding member, such that an elastic shock-absorbing space is defined between the first and the second holding member by the elastic element.
In an embodiment of the present invention, the elastic shock-absorbing space has a height ranged from 0.1 to 500 mm.
In an embodiment of the present invention, the first holding member is connected to a first external element by way of snap-fit, soldering, surface-mount technology (SMT), riveting, glue bonding, fastening, screwing or expanded connection; or the second holding member is connected to a second external element by way of snap-fit, soldering, SMT, riveting, glue bonding, fastening, screwing or expanded connection.
In an embodiment of the present invention, the first holding member includes a first receiving seat; a first connecting section extended from the first receiving seat and configured for connecting to a first external element; and a first coupling section formed on the first receiving seat and configured for movably coupling with the second holding member.
In an embodiment of the present invention, the second holding member includes a second receiving seat; a second connecting section extended from the second receiving seat and configured for connecting to a second external element; and a second coupling section formed around the second receiving seat and configured for movably coupling with the first coupling section.
In an embodiment of the present invention, the first coupling section includes a radially inward extended flange and the second coupling section includes a radially outward extended flange. The radially inward extended flange of the first coupling section is movably coupled with the radially outward extended flange of the second coupling section.
In an embodiment of the present invention, the second receiving seat further includes a locating boss; and the locating boss is formed on a bottom of the second receiving seat to locate the elastic element in place.
In an embodiment of the present invention, the first holding member includes a first receiving seat; a first connecting section extended from the first receiving seat and configured for connecting to a first external element; and a first coupling section centered in the first receiving seat and configured for movably coupling with the second holding member.
In an embodiment of the present invention, the second holding member includes a second receiving seat; a second connecting section extended from the second receiving seat and configured for connecting to a second external element; and a second coupling section formed on the second receiving seat and configured for movably coupling with the first coupling section.
In an embodiment of the present invention, the first coupling section includes a radially outward extended flange and the second coupling section includes a radially inward extended flange. The radially outward extended flange of the first coupling section is movably coupled with the radially inward extended flange of the second coupling section.
In an embodiment of the present invention, the first holding member includes a first seat; a first connecting section extended from the first seat and configured for connecting to a first external element; and a first coupling section formed around the first seat and configured for movably coupling with the second holding member.
In another embodiment of the present invention, the second holding member includes a second receiving seat; a second connecting section extended from the second receiving seat and configured for connecting to a second external element; and a second coupling section formed on the second receiving seat and configured for movably coupling with the first coupling section.
In another embodiment of the present invention, the first holding member and the second holding member are movably assembled to each other via a limiting element.
In another embodiment of the present invention, the limiting element is movably extended through one of the first holding member and the second holding member while being fastened to the other one of the first and the second holding member.
In another embodiment of the present invention, the first coupling section includes a radially outward extended flange and the second coupling section includes a radially inward extended flange. The radially outward extended flange of the first coupling section is movably coupled with the radially inward extended flange of the second coupling section.
In another embodiment of the present invention, the first holding member includes a first receiving seat; a first connecting section extended from the first receiving seat and configured for connecting to a first external element; and a first coupling section formed on the first receiving seat and configured for movably coupling with the second holding member.
In another embodiment of the present invention, the second holding member includes a second seat; a second connecting section extended from the second seat and configured for connecting to a second external element; and a second coupling section formed around the second seat and configured for movably coupling with the first coupling section.
In another embodiment of the present invention, the first coupling section includes a radially inward extended flange and the second coupling section includes a radially outward extended flange. The radially inward extended flange of the first coupling section is movably coupled with the radially outward extended flange of the second coupling section.
In an embodiment of the present invention, the first holding member is integrally formed with a first external element or the first holding member is combined with a first external element through assembly molding; or alternatively, the second holding member is integrally formed with a second external element or the second holding member is combined with a second external element through assembly molding.
In an embodiment of the present invention, the first or the second holding member is made of a metal material or a plastic material.
In an embodiment of the present invention, the first connecting section of the first holding member is a boss, a recess, a female thread, a male thread, a bevel surface, a cambered surface, a through hole, a notch or a curved surface.
In an embodiment of the present invention, the first connecting section of the first holding member has a stepped outer surface.
In an embodiment of the present invention, the first connecting section of the first holding member is in the form of a sunken hole or a through hole.
In an embodiment of the present invention, either the sunken hole or the through hole has female threads formed on an inner wall surface thereof.
In an embodiment of the present invention, either the sunken hole or the through hole has a protrusion and a notch correspondingly provided on an inner wall surface thereof.
In an embodiment of the present invention, the second connecting section of the second holding member is a boss, a recess, a female thread, a male thread, a bevel surface, a cambered surface, a through hole, a notch or a curved surface.
In an embodiment of the present invention, the second connecting section of the second holding member has a stepped outer surface.
In an embodiment of the present invention, the second connecting section of the second holding member is a sunken hole or a through hole. Either the sunken hole or the through hole has female threads formed on an inner wall surface thereof.
In an embodiment of the present invention, the elastic element is a compression spring, a helical spring, a torsion spring, an elastic washer, a bent spring strip, a flat spring or an elastic bar.
In an embodiment of the present invention, the first receiving seat has a first receiving space for receiving the elastic element therein and movably receiving the second holding member therein.
In an embodiment of the present invention, the second receiving seat has a second receiving space for receiving the elastic element therein and movably receiving the first holding member therein.
In an embodiment of the present invention, the first holding member has a first anti-rotation section for interfering with or engaging with a first external element, or the second holding member has a second anti-rotation section for interfering with or engaging with a second external element.
In an embodiment of the present invention, the first anti-rotation section is in the form of a tangential surface, a cut edge, multiple tangential surfaces, multiple cut edges, a hexagon, an octagon, a cambered surface, a polygon, a spherical surface, a curved surface, a protrusion or a recess; or, the second anti-rotation section is in the form of a tangential surface, a cut edge, multiple tangential surfaces, multiple cut edges, a hexagon, an octagon, a cambered surface, a polygon, a spherical surface, a curved surface, a protrusion or a recess.
In an embodiment of the present invention, the first anti-rotation section can be provided on an upper side, a lower side, a lateral side, an inner side or an outer side of the first holding member; or, the second anti-rotation section can be provided on an upper side, a lower side, a lateral side, an inner side or an outer side of the second holding member.
In an embodiment of the present invention, the first holding member has a third anti-rotation section; or, the second holding member has a fourth anti-rotation section. The third and the fourth anti-rotation section are movably engaged with or interfered with each other.
In an embodiment of the present invention, the first holding member has a third anti-rotation section and the second holding member has a fourth anti-rotation section. The third and the fourth anti-rotation section are movably engaged with or interfered with each other to prevent the first holding member and the second holding member from rotating relative to each other.
In an embodiment of the present invention, the third anti-rotation section is in the form of a tangential surface, a cut edge, multiple tangential surfaces, multiple cut edges, a hexagon, an octagon, a cambered surface, a polygon, a spherical surface, a curved surface, a protrusion or a recess; or, the fourth anti-rotation section is in the form of a tangential surface, a cut edge, multiple tangential surfaces, multiple cut edges, a hexagon, an octagon, a cambered surface, a polygon, a spherical surface, a curved surface, a protrusion or a recess.
In an embodiment of the present invention, the third anti-rotation section can be provided on an upper side, a lower side, a lateral side, an inner side or an outer side of the first holding member; or, the fourth anti-rotation section can be provided on an upper side, a lower side, a lateral side, an inner side or an outer side of the second holding member.
In an embodiment of the present invention, a top or a bottom of the first holding member can be fully closed, be provided with a through hole, or be provided with a recess; or, a top or a bottom of the second holding member can be fully closed, be provided with a through hole, or be provided with a recess.
In an embodiment of the present invention, the first holding member and the second holding member are spaced from each other by a distance ranged from 0 to 550 mm.
Another object of the present invention is to provide a shock-absorbing device package, which includes a device carrier and at least one shock-absorbing device described above. The device carrier includes a main body and at least one compartment; and the at least one compartment is a recess formed on the main body for holding the at least one shock-absorbing device therein.
In an embodiment of the present invention, the main body of the device carrier is in the form of a long belt or a tray.
In an embodiment of the present invention, the shock-absorbing device package further includes a cover configured for covering onto the at least one compartment.
In an embodiment of the present invention, the elastic element has shock-absorbing elasticity ranged from 10 to 100,000 grams.
In an embodiment of the present invention, the first holding member or the second holding member is provided with at least one receiving section for receiving the elastic element therein.
In an embodiment of the present invention, the first receiving seat is provided with at least one receiving section or a plurality of receiving sections for receiving the elastic element therein. The receiving section is in the form of a sunken area, a recess, a slot or a through hole.
In an embodiment of the present invention, the second receiving seat is provided with at least one receiving section or a plurality of receiving sections for receiving the elastic element therein. The receiving section is in the form of a sunken area, a recess, a slot or a through hole.
In an embodiment of the present invention, the receiving sections are spaced near an outer periphery of the second coupling section, and the receiving sections are in the form of a sunken area, a recess, a slot or a through hole.
In an embodiment of the present invention, the first and the second holding member have at least one or a plurality of elastic elements disposed between them.
In an embodiment of the present invention, the first coupling section includes a fastening section.
In an embodiment of the present invention, the fastening section is in the form of a male thread, a female thread, a post, a male retainer or a female retainer.
In an embodiment of the present invention, the first holding member includes a first receiving seat, a first connecting section and a first coupling section. The first receiving seat has a first receiving space, and the first coupling section is centered in the first receiving seat.
In an embodiment of the present invention, the second holding member includes a second receiving seat, a second connecting section and a second coupling section. The second receiving seat has a second receiving space and a receiving chamber, the first coupling section is extended through the receiving chamber and the second receiving space, and the elastic element is fitted around the first coupling section and received in the receiving chamber.
In an embodiment of the present invention, the second holding member includes a second receiving seat, a second connecting section and a second coupling section. The second receiving seat has a second receiving space and at least one receiving chamber, the first coupling section is extended through the second receiving space, and the elastic element is received in the receiving chamber.
In an embodiment of the present invention, the first holding member and the second holding member are integrally formed with the first external element and the second external element, respectively.
With the first holding member, the second holding member and the elastic element(s), the shock-absorbing device of the present invention functions to protect the first and the second external element against excessive vibration when they are subjected to an external force.
The structure and the technical means adopted by the present invention to achieve the above and other objects can be best understood by referring to the following detailed description of the preferred embodiments and the accompanying drawings, wherein
The present invention will now be described with some preferred embodiments thereof and by referring to the accompanying drawings. For the purpose of easy to understand, elements that are the same in the preferred embodiments are denoted by the same reference numerals.
Please refer to
As can be seen in
The first holding member 100 is configured for connecting to the first external element 1. In the first embodiment, the first holding member 100 includes a first receiving seat 110, a first connecting section 120, and a first coupling section 130. The first holding member 100 can have a first anti-rotation section 121 for engaging with a first mating anti-rotation section 11 on the first external element 1 to prevent the first holding member 100 and the first external element 1 from rotating relative to each other. The first anti-rotation section 121 can be in the form of a tangential surface, a recess, a cut edge, a cambered surface, a polygon, a spherical surface, a curved surface, a protrusion, or a sunken area. The first mating anti-rotation section 11 is a complementary structure of the first anti-rotation section 121. Further, the first anti-rotation section 121 can be provided on an upper side, a lateral side, an outer side, a lower side or an inner side of the first holding member 100.
The first receiving seat 110 has a first receiving space or hole 111 for receiving the elastic element 300 therein. Meanwhile, the second holding member 200 is movably received in the first receiving space 111.
The first connecting section 120 is extended from the first receiving seat 110 and configured for connecting to the first external element 1. More specifically, in the first embodiment, the first connecting section 120 is locked to the first external element 1 by means of an externally provided screw 3. However, it is understood the first connecting section 120 can be connected to the first external element 1 in other ways, including but not limited to snap-fit, soldering, surface-mount technology (SMT), riveting, glue bonding, fastening or expanded connection. Further, the first connecting section 120 can be in the form of a boss, a recess, a female thread, a male thread, a bevel surface, a cambered surface, a through hole, a notch or a curved surface.
The first coupling section 130 is formed around the first receiving seat 110 and configured for movably coupling with the second holding member 200. In the first embodiment, the first coupling section 130 has a top formed into a radially inward extended flange 131.
The second holding member 200 is movably assembled to the first holding member 100 and configured for connecting to the second external element 2. In the first embodiment, the second holding member 200 includes a second receiving seat 210, a second connecting section 220 and a second coupling section 230. The second holding member 200 can have a second anti-rotation section 221 for engaging with a second mating anti-rotation section 21 on the second external element 2 to prevent the second holding member 200 and the second external element 2 from rotating relative to each other. The second anti-rotation section 221 can be in the form of a tangential surface, a recess, a cut edge, a cambered surface, a polygon, a spherical surface, a curved surface, a protrusion, or a sunken area. The second mating anti-rotation section 21 is a complementary structure of the second anti-rotation section 221. Further, the second anti-rotation section 221 can be provided on an upper side, a lateral side, an outer side, a lower side or an inner side of the second holding member 200.
The second receiving seat 210 has a second receiving space or hole 211 for receiving the elastic element 300 therein. In the first embodiment, the second receiving seat 210 further has a locating boss 212 formed on a bottom of the second receiving space 211 to locate the elastic element 300 in place.
The second connecting section 220 is extended from the second receiving seat 210 and configured for connecting to the second external element 2. More specifically, in the first embodiment, the second connecting section 220 is snap-fitted onto the second external element 2. However, it is understood the second connecting section 220 can be connected to the second external element 2 in other ways, including but not limited to soldering, SMT, riveting, glue bonding, fastening, screwing or expanded connection. Further, the second connecting section 220 can be in the form of a boss, a recess, a female thread, a male thread, a bevel surface, a cambered surface, a through hole, a notch or a curved surface.
The second coupling section 230 is formed around the second receiving seat 210 and configured for movably coupling with the first coupling section 130. In the first embodiment, the second coupling section 230 has a top formed into a radially outward extended flange 231. The radially inward extended flange 131 of the first coupling section 130 is movably coupled with the radially outward extended flange 231 of the second coupling section 230.
Please refer to
The elastic element 300 is a spring disposed between the first holding member 100 and the second holding member 200 with two ends of the spring pressing against the first and the second holding member 100, 200. The elastic element 300 has shock-absorbing elasticity ranged from 10 to 100,000 grams. Further, there is an elastic shock-absorbing space S defined between the first and the second holding member 100, 200. By “elastic shock-absorbing space S”, it means a maximum space within which the first holding member 100 and the second holding member 200 can move relative to each other. With the elastic force of the elastic element 300, the first holding member 100 and the second holding member 200 can be moved away from or closer to each other.
When the first external element 1 and the second external element 2 are subjected to an external force and vibrated, the shock-absorbing device 10 fitted between them provides a buffering effect to prevent the first and second external elements 1, 2 from being excessively vibrated.
Please refer to
In the third embodiment, the first receiving seat 140 internally defines a first receiving space or hole 141 for receiving the elastic element 300 therein.
The first connecting section 150 is extended from the first receiving seat 140 and configured for connecting to the first external element 1. More specifically, in the third embodiment, the first connecting section 150 is locked to the first external element 1 by means of an externally provided screw 3. However, it is understood the first connecting section 150 can be connected to the first external element 1 in other ways, including but not limited to snap-fit, soldering, SMT, riveting, glue bonding, fastening or expanded connection.
The first coupling section 160 is centered in the first receiving seat 140 and configured for movably coupling with the second holding member 200. In the third embodiment, the first coupling section 160 has an end formed into a radially outward extended flange 161.
The second holding member 200 is movably assembled to the first holding member 100 and configured for connecting to the second external element 2. In the third embodiment, the second holding member 200 includes a second receiving seat 240, a second connecting section 250 and a second coupling section 260.
In the first variation of the shock-absorbing device 30 as shown in
The second connecting section 250 is extended from the second receiving seat 240 and configured for connecting to the second external element 2. More specifically, in the third embodiment, the second connecting section 250 is connected to the second external element 2 by expanded connection. However, it is understood the second connecting section 250 can be connected to the second external element 2 in other ways, including but not limited to snap-fit, soldering, SMT, riveting, glue bonding, fastening or screwing.
The second coupling section 260 is formed around the second receiving seat 240 and configured for movably coupling with the first coupling section 160. In the third embodiment, the second coupling section 260 has a radially inward extended flange 261 formed on a top (see
The elastic element 300 is a spring disposed between the first holding member 100 and the second holding member 200 with two ends of the spring pressing against the first and the second holding member 100, 200. Further, there is an elastic shock-absorbing space S defined between the first and the second holding member 100, 200. By “elastic shock-absorbing space S”, it means a maximum space within which the first holding member 100 and the second holding member 200 can move relative to each other. In the first variation of the shock-absorbing device 30 as shown in
The first connecting section 180 is extended from the first seat 170 and configured for connecting to the first external element 1. More specifically, the first connecting section 180 is locked to the first external element 1 by means of an externally provided screw 3. However, it is understood the first connecting section 180 can be connected to the first external element 1 in other ways, including but not limited to snap-fit, soldering, SMT, riveting, glue bonding, fastening or expanded connection.
The first coupling section 190 is formed around the first seat 170 and configured for movably coupling with the second holding member 200. In the fifth embodiment, the first coupling section 190 has a top formed into a radially outward extended flange 191.
The second holding member 200 is movably assembled to the first holding member 100 and configured for connecting to the second external element 2. In the fifth embodiment, the second holding member 200 includes a second receiving seat 210, a second connecting section 220 and a second coupling section 230.
The second receiving seat 210 has a second receiving space or hole 211 for receiving the elastic element 300 and the first coupling section 190 therein.
The second connecting section 220 is extended from the second receiving seat 210 and configured for connecting to the second external element 2. More specifically, the second connecting section 220 is locked to the second external element 2 by means of an externally provided screw 3. However, it is understood the second connecting section 220 can be connected to the second external element 2 in other ways, including but not limited to snap-fit, soldering, SMT, riveting, glue bonding, fastening or expanded connection.
The second coupling section 230 is formed around the second receiving seat 210 and configured for movably coupling with the first coupling section 190. In the fifth embodiment, the second coupling section 230 has a top formed into a radially inward extended flange 232. The radially outward extended flange 191 of the first coupling section 190 is movably coupled with the radially inward extended flange 232 of the second coupling section 230.
The elastic element 300 is a spring disposed between the first holding member 100 and the second holding member 200 with two ends of the spring pressing against the first and the second holding member 100, 200. Further, there is an elastic shock-absorbing space S defined between the first and the second holding member 100, 200. By “elastic shock-absorbing space S”, it means a maximum space within which the first holding member 100 and the second holding member 200 can move relative to each other. With the elastic force of the elastic element 300, the first holding member 100 and the second holding member 200 can be moved away from or closer to each other.
The first receiving seat 110 has a first receiving space or hole 111 for receiving the elastic element 300 therein. Meanwhile, the second holding member 200 is movably received in the first receiving space 111.
The first connecting section 120 is extended from the first receiving seat 110 and configured for connecting to the first external element 1. More specifically, in the sixth embodiment, the first connecting section 120 is a sunken hole or a recess with female threads formed on an inner wall surface thereof and can therefore be connected to the first external element 1 by means of an externally provided screw 3. However, it is understood the first connecting section 120 can be connected to the first external element 1 in other ways, including but not limited to snap-fit, soldering, SMT, riveting, glue bonding, fastening or expanded connection.
The first coupling section 130 is formed around the first receiving seat 110 and configured for movably coupling with the second holding member 200. In the sixth embodiment, the first coupling section 130 has a top formed into a radially inward extended flange 131.
The second holding member 200 is movably assembled to the first holding member 100 and configured for connecting to the second external element 2. In the sixth embodiment, the second holding member 200 includes a second seat 270, a second connecting section 280 and a second coupling section 290.
The second connecting section 280 is extended from the second seat 270 and configured for connecting to the second external element 2. More specifically, in the sixth embodiment, the second connecting section 280 is a boss for connecting to the second external element 2 by way of snap-fit. However, it is understood the second connecting section 280 can be connected to the second external element 2 in other ways, including but not limited to soldering, SMT, riveting, glue bonding, fastening, expanded connection or screwing.
The second coupling section 290 is formed around the second seat 270 and configured for movably coupling with the first coupling section 130. In the sixth embodiment, the second coupling section 290 has a top formed into a radially outward extended flange 291. The radially inward extended flange 131 of the first coupling section 130 is movably coupled with the radially outward extended flange 291 of the second coupling section 290.
In the sixth embodiment, the elastic element 300 is a bent spring strip disposed between and pressed against the first holding member 100 and the second holding member 200. Further, there is an elastic shock-absorbing space S defined between the first and the second holding member 100, 200. By “elastic shock-absorbing space S”, it means a maximum space within which the first holding member 100 and the second holding member 200 can move relative to each other. With the elastic force of the elastic element 300, the first holding member 100 and the second holding member 200 can be moved away from or closer to each other.
It is understood the above-described shock-absorbing devices 10-80 in the first to the eighth embodiment of the present invention are only illustrative. In other words, various combinations of the differently configured first holding members 100, second holding members 200 and elastic elements can be achieved to provide shock-absorbing devices of different configurations.
According to other operable embodiments of the present invention, the first holding member 100 of the shock-absorbing device 10-80 can be integrally formed with the first external element 1, and the second holding member 200 can be integrally formed with the second external element 2. Further, the first and the second holding member 100, 200 can be made of a metal material or a plastic material.
Please refer to
When the first external element 1 and the second external element 2 are subjected to an external force and vibrated, the shock-absorbing device 10 fitted between them provides a buffering effect to prevent the first and second external elements 1, 2 from being excessively vibrated.
As can be seen in
On the other hand, as can be seen in
In summary, the top or the bottom of the first holding member 100 can be fully closed, be provided with a through hole, or be provided with a recess. Alternatively, the top or the bottom of the second holding member 200 can be fully closed, be provided with a through hole, or be provided with a recess.
Please refer to
For the purpose of conciseness, the shock-absorbing device package 4 according to the present invention is herein also briefly referred to as the package 4. As shown, the package 4 includes a device carrier 41 and at least one shock-absorbing device 10-80 as described above. The device carrier 41 includes a main body 411, at least one compartment 412 and a cover 413. The at least one compartment 412 is a recess formed on the main body 411 for holding one shock-absorbing device 10-80 therein. In
The shock-absorbing devices 10-80 disposed in the compartments 412 of the device carrier 41 can be removed from the device carrier 41 with hands or with a tool, such as a vacuum picker or a magnetic claw picker, for connecting to the first external element 1 and the second external element 2.
In other operable embodiments, the device carrier 41 can be a long belt or a tray in shape. The long belt-shaped device carrier 41 can be wound into a roll for convenient storage in an organized manner. On the other hand, a plurality of tray-shaped device carriers 41 can be stacked for convenient storage.
Please refer to
Please refer to
In conclusion, with the first holding member, the second holding member and the elastic element(s), the shock-absorbing device of the present invention functions to protect the first and the second external element against excessive vibration when they are subjected to an external force. Moreover, the device carrier according to the present invention can be used to carry and hold the shock-absorbing device in an organized manner for convenient storage.
The present invention has been described with some preferred embodiments thereof and it is understood that the preferred embodiments are only illustrative and not intended to limit the present invention in any way and many changes and modifications in the described embodiments can be carried out without departing from the scope and the spirit of the invention that is intended to be limited only by the appended claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 105210945 | Jul 2016 | TW | national |
This application is a divisional patent application of U.S. application Ser. No. 15/651,830 filed on Jul. 17, 2017, the entire contents of which are hereby incorporated by reference for which priority is claimed under 35 U.S.C. § 120.
| Number | Date | Country | |
|---|---|---|---|
| Parent | 15651830 | Jul 2017 | US |
| Child | 16532527 | US |
