Patent Grant
11866921
The present application relates generally to the field of toilet assemblies having vitreous and non-vitreous components. More specifically, the present application relates to toilet assemblies having a vitreous bowl and a vitreous shroud coupled to a non-vitreous (e.g., plastic) flush engine.
Conventionally, whenever a new toilet is developed, the waterways within the toilet must be re-engineered to fit within the shape of the new toilet. For example, a waste trapway must be redesigned to fit within a new pedestal design based on the desired aesthetics. Specifically, the design for the waste trapway goes through multiple iterations in order to optimize the suction power during a flush cycle while minimizing water consumption. This re-engineering process increases the development costs for new products.
A conventional toilet can also be costly to develop due to the use of vitreous china, which provides a sanitary surface. Importantly, this sanitary surface minimizes or eliminates the presence of bacteria, waste, or other harmful chemicals being retained on the surface. However, vitreous china requires casting and firing, utilizing a manufacturing process specially developed for each new toilet design, which increases both prototyping costs and overall manufacturing costs.
In order to reduce development costs of a new toilet design, it may be advantageous to provide a standardized flush engine, which may be coupled to a vitreous bowl insert and/or enclosed in vitreous shrouds having different shapes.
One embodiment relates to a toilet assembly, including a flush engine having a bowl defining a sump and a trapway extending from the sump. A bowl insert is configured to be located in the bowl and a shroud is configured to be positioned over the flush engine to conceal at least a portion of the flush engine.
One aspect of the toilet assembly relates to the flush engine being from a material that is not vitreous china.
One aspect of the toilet assembly relates to the bowl insert and the shroud both being formed from a material that is vitreous china.
One aspect of the toilet assembly relates to an overflow rim of the flush engine at an upper periphery of the bowl.
Another aspect of the toilet assembly relates to an overflow nozzle of the flush engine extending from the overflow rim and configured to pass excess water from the overflow rim to the trapway such that the excess water bypasses the bowl.
Another aspect of the toilet assembly relates to the bowl insert comprising a lip extending laterally outward from an upper periphery of the bowl insert, the lip of the bowl insert configured to engage the overflow rim when the bowl insert is received within the bowl.
Another aspect of the toilet assembly relates to the overflow rim comprises a first portion extending laterally outward from the upper periphery of the bowl and a second portion extending vertically upward from the first portion. The lip of the bowl insert is spaced apart from the second portion of the overflow rim to define a channel that provides an area for excess water to flow between the lip and the second portion of the overflow rim.
Another aspect of the toilet assembly relates to a rinse rim configured to be coupled to a top portion of the flush engine, the rinse rim defining a plurality of rinse openings configured to supply water from within the rinse rim into the bowl insert.
Another aspect of the toilet assembly relates to the trapway extending from the sump at a trapway inlet of the trapway, and the bowl insert defining a trapway opening configured to align with the trapway inlet of the trapway when the bowl insert is received in the bowl.
Another aspect of the toilet assembly relates to the flush engine comprising a sump nozzle extending from the sump of the bowl and the bowl insert defining a sump opening configured to align with the sump nozzle of the flush engine when the bowl insert is received in the bowl.
Another aspect of the toilet assembly relates to the bowl insert being located within the bowl of the flush engine such that the bowl does not directly hold any fluid.
Another embodiment relates to a flush engine for a toilet, including a bowl defining a sump and configured to receive a bowl insert, and a trapway extending from the sump. The flush engine further includes an overflow rim at an upper periphery of the bowl. The overflow rim is configured to engage a lip of the bowl insert received in the bowl.
One aspect of the flush engine relates to the bowl and the trapway being formed from a material that is not a vitreous china.
Another aspect of the flush engine relates to flush engine being configured to be at least partially received within various shrouds having different external aesthetics.
Another aspect of the flush engine relates to an overflow nozzle extending from the overflow rim and configured to pass excess water from the overflow rim to the trapway such that the excess water bypasses the bowl.
Another aspect of the flush engine relates to an overflow trapway that fluidly connects the overflow nozzle and the trapway.
Another embodiment relates to a method of assembling a toilet assembly, including providing a flush engine having a bowl defining a sump, and a trapway extending from the sump. The method further includes inserting a bowl insert into the bowl. The method further includes positioning a shroud over the flush engine to conceal at least a portion of the flush engine.
One aspect of the method relates to where the flush engine is formed from a material that is not a vitreous china, and the bowl insert and the shroud are both formed from a material that is vitreous china.
One aspect of the method relates to the shroud being a first pedestal shroud and further including removing the first pedestal shroud from the flush engine and positioning a second pedestal shroud over the flush engine, the second pedestal shroud having a different aesthetic appearance from the first pedestal shroud.
Another aspect of the method relates to coupling a rinse rim to the flush engine, providing a tank having a conduit defining a rinse outlet and a separate sump outlet, fluidly coupling the rinse outlet to the rinse rim, and fluidly coupling the sump outlet to the sump.
The foregoing is a summary and thus by necessity contains simplifications, generalizations, and omissions of detail. Consequently, those skilled in the art will appreciate that the summary is illustrative only and is not intended to be in any way limiting. Other aspects, inventive features, and advantages of the devices and/or processes described herein, as defined solely by the claims, will become apparent in the detailed description set forth herein and taken in conjunction with the accompanying drawings.
Further features, characteristics, and advantages of the present disclosure will become apparent to a person of ordinary skill in the art from the following detailed description of embodiments of the present disclosure, made with reference to the drawings annexed, in which like reference characters refer to like elements.
Referring to the FIGURES generally, a toilet assembly is shown according to various exemplary embodiments. The toilet assembly includes a vitreous bowl insert received in a bowl of a non-vitreous flush engine, and a rinse rim disposed on the flush engine. A vitreous pedestal shroud encloses the flush engine to provide a desired outer aesthetic. During use of the toilet assembly, the user may only see and feel the vitreous china outer surface and may not be able to distinguish the toilet assembly from a conventional toilet formed entirely from vitreous china. Furthermore, the flush engine may be a standardized (i.e., uniform) part, such that the same flush engine is configured to be enclosed in shrouds having various outer shapes to provide corresponding different aesthetics.
Referring to
The flush engine 12 further comprises an overflow rim 30 formed at and above the upper periphery 18 of the bowl 14. The overflow rim 30 defines a generally “L”-shaped cross section as shown in
It should be noted that while
As shown in
In use, water generally overflows in the bowl 14 when there is an obstruction (i.e., blockage) in the trapway 22. Once the excess water reaches the upper periphery 18 of the bowl 18, the excess water flows into the overflow rim 30 and then into and through the overflow nozzle 36, the overflow waterway 42, the overflow trapway 48, and finally the trapway 22. By passing the water from the overflow rim 30 to a portion of the trapway 22 proximate the drain outlet 28, the overflowing excess water is most likely to bypass the obstruction (and the bowl 14) and prevent overflow from the entire flush engine 12. It should be noted that the overflow trapway 48 may be fluidly connected to the trapway 22 in other locations or may be separately output to an area outside the flush engine 12. The overflow trapway 48 forms a water seal (e.g., air lock) between the overflow nozzle 36 and the trapway 22 which prevents gas present in the sewer line from being released through the overflow nozzle inlet 38.
The overflow waterway 42 may be formed from plastic (e.g., polyethylene), rubber, or other non-vitreous flexible or rigid material, such that the overflow waterway 42 may be coupled to and fluidly connect the overflow nozzle 36 and the overflow trapway nozzle 50 by routing the overflow waterway 42 around various components of the flush engine 12 (such as the bowl 14 and the majority of the trapway 22). The inlet 44 of the overflow waterway 42 may be threadably coupled to the overflow nozzle 36 or may be coupled to the overflow nozzle 36 in other ways (e.g., with a quick-connect configuration). Similarly, the outlet 46 of the overflow waterway 42 may be threadably coupled to the overflow trapway nozzle 50 or may be coupled to the overflow trapway nozzle 50 in other ways. Integrally forming waterways as part of the molded components of the flush engine 12 during a molding process may be difficult and expensive and limit the possible arrangements of the toilet assembly 10. However, by fluidly connecting the overflow waterway 42 and the overflow trapway 48 with a separate waterway 42, the cost and complexity of manufacturing the flush engine 12 may be reduced.
Referring still to
The bowl insert 56 comprises a lip 66 that extends laterally outward from the upper periphery 60 of the bowl insert 56. Referring now to
As shown in
As shown in
Referring to
Referring again to
Referring now to
When the rinse rim 78 is installed on the overflow rim 30, the fingers 86 may extend below the first portion 32 of the overflow rim 30 and radially inward beneath the first portion 32 to form the interference fit. According to another exemplary embodiment, the second portion 34 of the overflow rim 30 may define a groove (i.e., channel, inset portion) configured to receive at least a portion of the fingers 86 extending radially inward. While
Referring to
Referring now to
As shown in
As shown in
Where the tank 92 is separate from the flush engine 12 (e.g., as shown in
Referring now to
As shown in
Referring now to
Referring still to
As discussed above, the pedestal and tank shrouds 112, 114 are formed from a material that is vitreous china and provide a sanitary outer surface of the toilet assembly 10. Further, the bowl insert 56 is also formed from a material that is vitreous china. When the toilet assembly 10 is fully assembled, the bowl insert 56 conceals the inner surface 15 of the bowl 14 from view and the pedestal shroud 112 and/or the tank shroud 114 conceals the rest of the flush engine 12 from view. In this configuration, while the flush engine 12 (in particular the bowl 14 and trapway 22) is formed from a material that is not vitreous china (i.e., a non-vitreous material), the entire flush engine 12 is concealed such that a user may only see and feel a vitreous china outer surface. It is noted that the flush engine 12, the bowl insert 56, the shrouds 112, 114, the tank 92, and the rinse rim 78 may each be separately formed from each other.
The toilet assembly 10 can be used within commercial toilets (e.g., for use in airports, restaurants, or other high-traffic areas) or for in-home, non-commercial use. The toilet can be configured as a gravity fed (e.g., that includes a toilet tank that introduces water into the bowl through gravity) or may be configured as a line pressure toilet that does not include a tank but utilizes water flowing in from a water line directly to the bowl and rim areas. Additionally, the toilet assembly 10 may include a flushometer in order to meter the fluid flow to the bowl and/or rim.
Referring now to
This may be a manual process or may utilize an assembly robot. According to other embodiments, the flush engine 12 may be inverted and provided onto the bowl insert 56, which is also inverted. When the bowl insert 56 is provided in the bowl 14, the trapway opening 70 of the bowl insert 56 is substantially aligned with the trapway inlet 23 and/or the sump opening 76 is substantially aligned with the sump nozzle 72.
In a second step 204, a rinse rim is provided on an overflow rim of the flush engine. For example, with reference to the accompanying figures, a rinse rim such as rinse rim 78 is provided on or coupled to the overflow rim 30 of the flush engine 12. This may be a manual process or may utilize an assembly robot. According to other embodiments, the flush engine 12 and the bowl insert 56 may be inverted and provided onto the rinse rim 78, which is also inverted. As the rinse rim 78 is moved closer to the overflow rim 30, the plurality of fingers 86 engage the second portion 34 of the overflow rim 30, which forces at least a portion of the plurality of fingers 86 to expand laterally outward. After the lower surface 85 of the rinse rim 78 is disposed on the overflow rim 30, the plurality of fingers 86 rebound to an non-deflected condition, such that at least a portion of the below the first portion 32 of the overflow rim 30, coupling the rinse rim 78 to the overflow rim 30 with an interference fit. According to other exemplary embodiments, the rinse rim 78 may be coupled to the overflow rim 30 with single finger 86 or other structure providing an interference fit or may be coupled to the overflow rim 30 in other ways (e.g., with a fastener, adhesive, etc.).
In a third step 206, an overflow nozzle in the overflow rim is fluidly connected to a trapway. For example, with reference to the accompanying figures, an overflow nozzle such as overflow nozzle 36 extends from the overflow rim 30. An overflow waterway 42 is coupled to the overflow nozzle 36 and to the trapway 22. During operation of the toilet assembly 10 during a flush cycle, if the trapway 22 is clogged, causing water to rise above the first portion 32 of the overflow rim 30 (and above the top surface of the lip 66 of the bowl insert 56), water passes in a channel formed between the lip 66 of the bowl insert 56 and the second portion 34 of the overflow rim 30. The water then passes from this channel, through the overflow nozzle 36 and the overflow waterway 42 before being fed to the trapway 22 or the intervening overflow trapway 48.
According to an exemplary embodiment, the overflow waterway 42 is fluidly coupled to an overflow trapway 48, which is connected to the trapway 22. The overflow trapway 48 forms a water lock configured to prevent gases in the trapway 22 from exiting the trapway 22 through the overflow trapway 48. The overflow waterway 42 may be press-fit onto the overflow nozzle 36 and/or the overflow trapway 48, or may be coupled to the overflow nozzle 36 and/or the overflow trapway 48 in other ways (e.g., threadably coupled, glued, etc.).
In a fourth step 208, a tank is fluidly coupled to the flush engine. For example, with reference to the accompanying figures, a tank such as tank 92 is provided on and coupled to the flush engine 12 at a platform 108 disposed on the trapway 22. The tank 92 is provided with a conduit 94 defining a rinse outlet 96 and a separate sump outlet 98 for separately outputting water from the tank 92. The rinse outlet 96 is fluidly coupled to the rinse rim 78 at the rinse nozzle 82. Specifically, the rinse waterway 100, which may be formed from a flexible or rigid material that is not vitreous china, is coupled to and extends between the rinse outlet 96 and the rinse rim 78 (in particular the rinse nozzle 82 for supplying water from the tank 92 to the rinse rim 78). The rinse waterway 100 may be press-fit onto the rinse outlet 96 and/or the rinse nozzle 82, or may be coupled to the rinse outlet 96 and/or the rinse nozzle 82 in other ways (e.g., threadably coupled, glued, etc.). Similarly, the sump outlet 98 is fluidly coupled to the sump 62 at the sump nozzle 72. Specifically, the sump waterway 102, which may be formed from a flexible or rigid material that is not vitreous china, is coupled to and extends between the sump outlet 98 and the sump 62 (in particular the sump nozzle 72 for supplying water from the tank 92 to the sump 62). The sump waterway 102 may be press-fit onto the sump outlet 98 and/or the sump nozzle 72, or may be coupled to the sump outlet 98 and/or the sump nozzle 72 in other ways (e.g., threadably coupled, glued, etc.).
While the figures show the fourth step 208 including coupling the tank 92 to the flush engine 12, it should be understood that the according to other exemplary embodiments, the flush engine 12 may be supplied with water from a water supply line (not shown) instead of or in addition to the tank 92. For example, a water supply line may be provided in a wall in a bathroom. The water supply line provides pressurized water to the conduit 94, which then separates the water into streams in each of the rinse outlet 96 and the sump outlet 98 for outputting to the rinse rim 78 and the sump 62, respectively. According to another exemplary embodiment, the water supply line may include two separate water supply lines (e.g., first and second water supply lines). In this configuration, the rinse waterway 100 and the sump waterway 102 may be coupled to the water supply lines without an intervening conduit 94. For example, the rinse waterway 100 may be coupled to the first water supply line and the sump waterway 102 may be separately coupled to the second water supply line.
In a fifth step 210, a pedestal shroud is installed on a flush engine 12. For example, with reference to the accompanying figures, a pedestal shroud such as pedestal shroud 112 is disposed about and positioned over the flush engine 12. The pedestal shroud 112 is lifted above the ground, such that the shoulder 121 is positioned above and further away from the ground than the rinse rim 78. In this configuration, the fifth step 210 includes receiving the flush engine 12, including the bowl 14 and the rinse rim 78, through the rear end 122 of the pedestal shroud 112 and sliding the pedestal shroud 112 rearward relative to the flush engine 12. According to another exemplary embodiment, the pedestal shroud 112 is lifted above the ground, such that a bottom surface of the pedestal shroud 112 is positioned above and further away from the ground than the rinse rim 78. In this configuration, the fifth step 210 includes receiving the flush engine 12, including the bowl 14 and the rinse rim 78, through the bottom surface of the pedestal shroud 112. In either configuration, when the opening 120 in the pedestal shroud 112 is substantially vertically aligned with the opening 80 in the rinse rim 78, the pedestal shroud 112 is lowered onto the flush engine 12, such that the shoulder 121 is disposed laterally inward from and proximate the inner surface 88 of the rinse rim 78, thereby concealing the rinse rim 78 from view by a user.
In a sixth step 212, a tank shroud is installed about a tank and on a pedestal shroud. For example, with reference to the accompanying figures, a tank shroud such as tank shroud 114 is disposed about and positioned over the tank 92. The tank shroud 114 is lifted above the ground, such that the lower surface 134 of the tank shroud 114 is positioned above and further away from the ground than the platform 108 and/or the upper surface 118 of the pedestal shroud 112. In this configuration, the sixth step 212 includes receiving the tank 92 through the rear end 132 of the tank shroud 114 and sliding the tank shroud 114 rearward relative to the tank 92. According to another exemplary embodiment, the tank shroud 114 is lifted above the ground, such that the lower surface 134 of the tank shroud 114 is positioned above and further away from the ground than the tank 92. In this configuration, the sixth step 212 includes receiving the tank 92 through the lower surface 134 of the tank shroud 114. When the tank shroud 114 is installed and the tank 92 is received therein, the tank 92 is concealed from view during use of the toilet assembly 10, regardless of whether the tank 92 is inserted through an opening in either the rear end 132 or the lower surface 134 of the tank shroud 114. As shown in the figures, the tank shroud 114 may be coupled to the tank 92 and/or the pedestal shroud 112. For example, the lower surface 134 of the tank shroud 114 may be disposed on and engage the upper surface 118 of the pedestal shroud 112.
While the method 200 shows a process for assembling a toilet assembly 10, it should be understood that one or more of the steps in the method 200 may be performed in reverse in order to disassemble the toilet assembly 10. For example, such process may be used in order to replace the pedestal shroud 112 and/or the tank shroud 114. During a bathroom renovation, it may be desirable to replace toilets to provide a new desired aesthetic appearance. Rather than completely replacing the entire toilet, which will result in higher incurred costs, the pedestal shroud 112 (i.e., first pedestal shroud) and/or the tank shroud 114 (i.e., first tank shroud) may be replaced with a new pedestal shroud 112 (i.e., second pedestal shroud) and/or a new tank shroud 114 (i.e., second tank shroud) having different aesthetic appearances.
Referring now to
In a second step 254, a first tank shroud is removed (e.g., separated) from the tank. For example, with reference to the accompanying figures, a first tank shroud such as tank shroud 114 is originally disposed about the tank 92. The second step 254 includes separating or removing the first tank shroud 114 from the tank 92 and the pedestal shroud 112. For example, the second step 254 includes sliding the first tank shroud 114 forward relative to the tank 92 and passing the tank 92 through the rear end 132 of the first tank shroud 114. The first tank shroud 114 is then separated from the tank 92 for removal from the toilet assembly 10. According to another exemplary embodiment, the first tank shroud 114 is lifted upward away from the ground and separated from the tank 92. According to other exemplary embodiments, the first tank shroud 114 may be removed from the toilet assembly 10 in other ways.
In a third step 256, a first pedestal shroud is removed (e.g., separated) from the flush engine. For example, with reference to the accompanying figures, a first pedestal shroud such as pedestal shroud 112 is originally disposed about the flush engine 12. The third step 256 includes sliding the first pedestal shroud 112 forward relative to the flush engine 12 and passing the flush engine 12 through the rear end 122 of the pedestal shroud 112. The first pedestal shroud 112 is then separated from the flush engine 12 for removal from the toilet assembly 10. According to another exemplary embodiment, the first pedestal shroud 112 is lifted upward away from the ground and separated from the flush engine 12.
In a fourth step 258, a second pedestal shroud is installed on and positioned over the flush engine. For example, with reference to the accompanying figures, a second pedestal shroud such as pedestal shroud 112 is disposed about the flush engine 12. The second pedestal shroud 112 provides a different aesthetic appearance than the first pedestal shroud 112 and is configured to be coupled to the flush engine 12 in substantially the same way as the first pedestal shroud 112. The second pedestal shroud 112 is lifted above the ground, such that the shoulder 121 is positioned above and further away from the ground than the rinse rim 78. In this configuration, the fourth step 258 includes receiving the flush engine 12, including the bowl 14 and the rinse rim 78, through the rear end 122 of the second pedestal shroud 112 and sliding the second pedestal shroud 112 rearward relative to the flush engine 12. According to another exemplary embodiment, the second pedestal shroud 112 is lifted above the ground, such that a bottom surface of the second pedestal shroud 112 is positioned above and further away from the ground than the rinse rim 78. In this configuration, the fourth step 258 includes receiving the flush engine 12, including the bowl 14 and the rinse rim 78, through the bottom surface of the second pedestal shroud 112. In either configuration, when the opening 120 in the second pedestal shroud 112 is substantially vertically aligned with the opening 80 in the rinse rim 78, the second pedestal shroud 112 is lowered onto the flush engine 12, such that the shoulder 121 is disposed laterally inward from and proximate the inner surface 88 of the rinse rim 78, thereby concealing the rinse rim 78 from view by a user.
In a fifth step 260, a second tank shroud is installed about a tank and on a second pedestal shroud. For example, with reference to the accompanying figures, a second tank shroud such as tank shroud 114 is disposed about the tank 92. The second tank shroud 114 provides a different aesthetic appearance than the first tank shroud 114 and is configured to be coupled to the tank 92 and/or the second pedestal shroud 112 in substantially the same way as the first tank shroud 114. For example, the second tank shroud 114 is lifted above the ground, such that the lower surface 134 of the second tank shroud 114 is positioned above and further away from the ground than the platform 108 and/or the upper surface 118 of the second pedestal shroud 112. In this configuration, the fifth step 260 includes receiving the tank 92 through the rear end 132 of the second tank shroud 114 and sliding the second tank shroud 114 rearward relative to the tank 92. According to another exemplary embodiment, the second tank shroud 114 is lifted above the ground, such that the lower surface 134 of the second tank shroud 114 is positioned above and further away from the ground than the tank 92. In this configuration, the fifth step 260 includes receiving the tank 92 through the lower surface 134 of the second tank shroud 114. When the second tank shroud 114 is installed and the tank 92 is received therein, the tank 92 is concealed from view during use of the toilet assembly 10, regardless of whether the tank 92 is inserted through an opening in either the rear end 132 or the lower surface 134 of the tank shroud 114. As shown in the figures, the second tank shroud 114 may be coupled to the tank 92 and/or the second pedestal shroud 112. For example, the lower surface 134 of the second tank shroud 114 may be disposed on and engage the upper surface 118 of the second pedestal shroud 112.
It should be understood that while the method 250 shown in
As utilized herein, the terms “approximately,” “about,” “substantially,” and similar terms are intended to have a broad meaning in harmony with the common and accepted usage by those of ordinary skill in the art to which the subject matter of this disclosure pertains. It should be understood by those of skill in the art who review this disclosure that these terms are intended to allow a description of certain features described and claimed without restricting the scope of these features to the precise numerical ranges provided. Accordingly, these terms should be interpreted as indicating that insubstantial or inconsequential modifications or alterations of the subject matter described and claimed are considered to be within the scope of this disclosure as recited in the appended claims.
It should be noted that the term “exemplary” as used herein to describe various embodiments is intended to indicate that such embodiments are possible examples, representations, and/or illustrations of possible embodiments (and such term is not intended to connote that such embodiments are necessarily extraordinary or superlative examples).
The terms “coupled,” “connected,” and the like as used herein mean the joining of two members directly or indirectly to one another. Such joining may be stationary (e.g., permanent) or moveable (e.g., removable or releasable). Such joining may be achieved with the two members or the two members and any additional intermediate members being integrally formed as a single unitary body with one another or with the two members or the two members and any additional intermediate members being attached to one another.
References herein to the position of elements (e.g., “top,” “bottom,” “above,” “below,” etc.) are merely used to describe the orientation of various elements in the FIGURES. It should be noted that the orientation of various elements may differ according to other exemplary embodiments, and that such variations are intended to be encompassed by the present disclosure.
It is to be understood that although the present invention has been described with regard to preferred embodiments thereof, various other embodiments and variants may occur to those skilled in the art, which are within the scope and spirit of the invention, and such other embodiments and variants are intended to be covered by corresponding claims. Those skilled in the art will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, manufacturing processes, etc.) without materially departing from the novel teachings and advantages of the subject matter described herein. For example, the order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. Other substitutions, modifications, changes and omissions may also be made in the design, operating conditions and arrangement of the various exemplary embodiments without departing from the scope of the present disclosure.
This application is a Continuation of U.S. patent application Ser. No. 16/533,334 filed Aug. 6, 2019, which claims priority to and the benefit of U.S. Provisional Patent Application No. 62/715,431, filed Aug. 7, 2018, the entire disclosures of which is are incorporated herein by reference.
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| Parent | 16533334 | Aug 2019 | US |
| Child | 17513514 | US |
