Embodiments of the present disclosure generally relate to the field of smart textiles, and in particular to a textile interconnection system for a textile substrate.
BACKGROUND
Sensory devices, such as physiological data sensors, may be integrated or embedded into smart textiles. Smart textiles may include garments, such as clothing. When sensory devices are embedded into garments, the sensory devices may be positioned physically proximate to user limbs or body parts. The garments having the sensory devices embedded therein may be worn by users for extended durations of time and may be configured to generate sensory data over time.
Smart textiles are a fabric based system of materials and structures that sense and react to environmental conditions or stimuli, such as those from mechanical, thermal, chemical, electrical, magnetic or other sources. Smart textiles can react or adapt to external stimuli or changing environmental conditions. The stimuli can include changes in temperature, moisture, pH, chemical sources, electric or magnetic fields, mechanical stress or strain.
Advanced smart textiles can have embedded computing, digital components, electronics, energy supply, and sensors. Basic components of smart textiles include sensors, actuators, data transmission and electrical power. When functionality, size, cost, reliability, comfort and aesthetic/requirements are considered, it may be desirable to seamlessly integrate electronic components into the manufacturing of the textiles. Further, electrical connections between electrically conductive circuits of the textiles (e.g. conductive fibres, wires, etc., of the textile substrate) with electronic components, such as power sources and computational components (e.g. processor, memory, etc.) may require adaptable and/or reliable connection to the textiles.
Furthermore, textile manufacturing and electronics manufacturing may use vastly different manufacturing infrastructures, utilizing highly dissimilar assembly equipment, materials and processes.
It may be desirable to provide materials and manufacturing methods which can integrate the interconnection of electronics devices or electronics modules into textile based substrates.
Textile interconnection systems for smart textiles, including smart garments, are described in the present application.
In one aspect, the present application provides a textile interconnection system for a textile substrate. The textile substrate may include at least one conductive fibre configured to transmit at least one of a power or data signal. The textile interconnection system may include: a textile receptacle projecting from the textile substrate to define a cavity for receiving a controller device. The textile interconnection system may also include a textile docking device received within the textile receptacle and coupled to the at least one conductive fibre of the textile substrate of the textile substrate to electrically interconnect the received controller device and the textile substrate. The textile interconnection system may also include a housing coupled to the textile docking device and received within the textile receptacle to mechanically interconnect the received controller device and the textile substrate.
In another aspect, the present application provides a garment. The garment may include a garment body including a textile substrate. The textile substrate may include at least one conductive fibre configured to transmit at least one of a power or data signal. The garment may include a textile interconnection system coupled to the textile substrate. The textile interconnection system may include a textile receptacle projecting from the textile substrate to define a cavity for receiving a controller device. The textile interconnection system may include a textile docking device received within the textile receptacle and coupled to the at least one conductive fibre of the textile substrate to electrically interconnect the received controller device and the textile substrate. The textile interconnection device may include a housing coupled to the textile docking device and received within the textile receptacle to mechanically interconnect the received controller device and the textile substrate.
In this respect, before explaining at least one embodiment in detail, it is to be understood that the embodiments are not limited in application to the details of construction and to the arrangements of the components set forth in the following description or illustrated in the drawings. It is to be understood that the phraseology and terminology employed herein are for the purpose of description and should not be regarded as limiting.
Further features and combinations thereof concerning embodiments described herein will appear to those skilled in the art following a reading of the present application.
In the figures, embodiments are illustrated by way of example. It is to be expressly understood that the description and figures are only for the purpose of illustration and as an aid to understanding.
Embodiments will now be described, by way of example only, with reference to the attached figures, wherein in the figures:
In the following detailed description of the invention of exemplary embodiments of the invention, reference is made to the accompanying drawings (where like numbers represent like elements), which form a part hereof, and in which is shown by way of illustration specific exemplary embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention, but other embodiments may be utilized and logical, mechanical, electrical, and other changes may be made without departing from the scope of the present invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is defined only by the appended claims.
In the following description, specific details are set forth to provide a thorough understanding of the invention. However, it is understood that the invention may be practiced without these specific details. In other instances, well-known structures and techniques known to one of ordinary skill in the art have not been shown in detail in order not to obscure the invention. Referring to the figures, it is possible to see the various major elements constituting the apparatus of the present invention.
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Periodic removal of the controller device 12 could be advantageous for recharging of a power source 70 (see
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The bottom enclosure 24 of the housing can include apertures 79a for receiving corresponding pins 79b mounted on a body 54a of the electrical dock connector 54 (e.g. an 8 pin connector). It is also envisioned that the electrical dock connector 54 can be a socket connector and the electrical controller connector 26 can be a pin connector 26 configured for mating with the socket connector 54. It is also recognized that the electrical connectors 26,54 can have mating electrical connections other than of the pin/socket type (e.g. magnetic), as desired, in so much that the electrical connectors 26,54 are of the releasably securable type. As shown in
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For example, electrical current to the electronics 22 follows the electrically conductive path of: a) from the conductive pathways 76 to b) the electrical controller connector 26 to c) the electrical dock connector 54 to d) the conductive pathways 43 connecting each of the one or more electrical connectors 79b (e.g. pins, sockets, etc.) of the electrical dock connector 54 to e) corresponding one or more electrical connection locations 42 to finally f) (e.g. via the fasteners 29) positioned adjacent to and electrically bonded to the conductive pathways 80 of the textile substrate 34. Similarly, electrical current from the conductive pathways 80 of the textile substrate 34 follows the electrically conductive path of: a) (e.g. via the fasteners 29) positioned adjacent to and electrically bonded to the conductive pathways 80 of the textile substrate 34 to b) corresponding one or more electrical connection locations 42 to c) the conductive pathways 43 connecting each of the one or more electrical connectors 79b (e.g. pins, sockets, etc.) of the electrical dock connector 54 to d) the electrical dock connector 54 to e) the electrical controller connector 26 to f) the conductive pathways 76 connected to the electronics 22.
In fabrication of the overall assembly 10, the following example manufacturing processes can be performed.
As shown above by example, the overall assembly 10 included the controller device 12, the module dock station 14 fixedly connected to the substrate(s) 28,30, and the substrates 28,30 fixedly connected to the textile substrate 34 (having the plurality of conductive pathways 80). As such, the controller device 12, once assembled, is both mechanically and electrically releasably securable to the module dock station 14, in order to effect electrical communication between the electronics 22 of the controller device 12 and the conductive pathways 80 of the textile substrate 34.
Accordingly, described by example only is: (a) light pipe 16, (b) top enclosure 18, (b) magnet 20, (c) main electronics 22 which can contain (d) the main PCB 28, (e) battery 70 and (f) other electronic components 72,74,76, (g) bottom enclosure 24, which holds (h) the connector PCB 26, (i) module dock 14, (j) top textile PCB 28 which are located above the (j) textile band 34 and under the (k) textile pocket 35 and the (I) bottom textile PCB 30 and (m) fabric and laminate padding 32, which are located below the textile band 34.
Further, the embodiments comprise apparatus and methods to make a reliable interconnection between electronic devices 12 and smart textiles 34. The embodiments facilitate the electronic device 12 to maintain a robust electrical connection to electrically conductive circuits 80 on the smart textile 34 while also being securely mechanically fastened to the smart textile 34, thus acquiring the ability to withstand mechanical shock, torsion, stretch and other stresses to which the smart textile 34 or electronic devices 12 may be subject to.
In some embodiments the textile band 34 or textile substrate 34 may contain no electrical or electronic components. In some embodiments, the textile substrate 34 may contain only electrically conductive circuits 80, such as electrically conductive yarn, fiber or printed electronic circuits. In other embodiments, the textile substrate 34 may contain fully functional and active electronic components, sensors, circuits and the like.
For the purposes of a wearable smart textile 34 worn on the body, the direction of below the textile band 34 would be interpreted as being closer to the body and above the textile band 34 would be farther away from the body. The textile pocket 35 is preferably a structure which is raised above the textile band 34 and fabricated by knitting into the textile band 34 knit structure.
In some embodiments, the textile substrate 34 (also called the textile band 34) has successfully incorporated health monitoring sensors in the form of ECG sensor pads, respiratory monitoring sensors and bio-impedance monitoring sensors. These sensors are electrically connected to conductive circuits 80 within the textile band 34, which are then connected using rivets 29, eyelet or grommets 42 leading to the hard electronics 22 (e.g. mounted on the PCB 78). In other embodiments, the main electronics PCB 78 has also successfully incorporated motion sensors and temperature sensors onto the module PCB 78, as part of the electronics 22.
Steps 1-4, above, create a robust and secure mechanical and electrical connection between the top textile PCB 28, the bottom textile PCB 30 and the textile band 34. In regions where an electrical connection is required, the pre-punched rivet holes 34b in the textile band 34 can be located such that an electrical conductive circuit 80 in the textile band 34 is physically in contact with the metal rivet 29 an/or the conductive locations 42 (e.g. part of the conductive pathways 43 positioned on the underside of the first substrate 28 (and thus able to be placed into direct contact with the surface 34a of the textile substrate 34). It should be noted that rivet 29 can also mean eyelet, grommet or similar type of metal fastening method.
The textile band pocket 35, which is fabricated in such a manner as to be raised above the surface 34a of the textile band 34 facilitating just enough room for the module dock housing 50 to fit snugly within the pocket 35, while also facilitating it to be removed when necessary.
Ultrasonically welding to seal the edges of the top 18 and bottom 24 module.
Other options for manufacture can include generally processes such as but not limited to:
1) the process of assembly comprises the steps of: assembling the top textile PCB onto the textile band; placing an adhesive material on the bottom size of the top textile PCB; inserting the top textile PCB inside the textile pocket by aligning the holes on the top textile PCB to the matching pre-punched rivet holes onto the textile band; placing double-sided adhesive on the bottom textile PCB and placing it on the opposite side of the textile band to the top textile PCB, also aligning to the pre-punched rivet holes in the textile band; and pressing the rivets at the same time as applying even pressure to the PCBs;
2) in regions where an electrical connection is needed, the pre-punched rivet holes in the textile band can be located such that an electrical conductive circuit in the textile band is physically in contact with the metal rivet;
3) the textile band pocket can be fabricated in such a manner as to be raised above the surface of the textile band providing just enough room for the module dock housing to fit snugly within the pocket, while also allowing it to be removed when used;
4) assembling the module dock and dock backing into the textile band; applying epoxy to the dock and placing it inside the pocket by aligning the heat stacking poles to the holes on the textile PCBs; heat staking the dock onto the textile PCB assembly; applying epoxy to the dock backing and placing it on the back of the bottom textile PCB; and covering the dock backing with a fabric, preferably laminated;
5) assembling the connector PCB into the bottom module enclosure; placing and press-fitting the connector PCB target discs into the bottom module holes; heat staking the connector PCB onto the dock; and applying adhesive sealant around the connector PCB to prevent water ingression; and/or
6) assembling the light pipe and magnet into the module top enclosure and assembling the top and bottom module enclosures together; press fitting and/or gluing the light pipe into Module Top; press fitting and/or gluing the magnet into Module Top; assembling the Top and Bottom of the Module together; and ultrasonically welding to seal the edges of the top and bottom module.
Reference is made to
The textile interconnection system 2200 may be configured to receive a controller device (not illustrated in
In some embodiments, the textile substrate 2270 may be a portion of a smart garment. In some embodiments, the smart garment may be formed of a knitted textile. In some other embodiments, the smart garment may be formed of other textile forms and/or techniques such as weaving, knitting (warp, weft, etc.) or the like. In some embodiments, the smart garment may include one of a knitted textile, a woven textile, a cut and sewn textile, a knitted fabric, a non-knitted fabric, in any combination and/or permutation thereof. Example structures and interlacing techniques of textiles formed by knitting and weaving are disclosed in U.S. patent application Ser. No. 15/267,818, the entire contents of which are herein incorporated by reference.
As used herein, “textile” refers to any material made or formed by manipulating natural or artificial fibres to interlace to create an organized network of fibres. Generally, textiles are formed using yarn, where yarn refers to a long continuous length of a plurality of fibres that have been interlocked (i.e. fitting into each other, as if twined together, or twisted together). Herein, the terms fibre and yarn may be used interchangeably. Fibres or yarns can be manipulated to form a textile according to any method that provides an interlaced organized network of fibres, including but not limited to weaving, knitting, sew and cut, crocheting, knotting and felting.
Different sections of a textile can be integrally formed into a layer to utilize different structural properties of different types of fibres. For example, conductive fibres can be manipulated to form networks of conductive fibres and non-conductive fibres can be manipulated to form networks of non-conductive fibers. These networks of fibres can comprise different sections of a textile by integrating the networks of fibres into a layer of the textile. The networks of conductive fibres can form one or more conductive pathways that can electrically connect sensors and actuators embedded in the smart garment for conveying data and/or power to and/or from these components.
In some embodiments described in the present application, the textile substrate 2270 may be configured as a network of conductive fibres for conveying data and/or power between the one or more sensor, actuators, devices, or combinations thereof.
In some embodiments, multiple layers of textile may be stacked upon each other to provide a multi-layer textile.
In the present application, “interlace” refers to fibres (either artificial or natural) crossing over and/or under one another in an organized fashion, typically alternately over and under one another, in a layer. When interlaced, adjacent fibres touch each other at intersection points (e.g. points where one fibre crosses over or under another fibre). In one example, first fibres extending in a first direction can be interlaced with second fibres extending laterally or transverse to the fibres extending in the first connection. In another example, the second fibres can extend laterally at 90° from the first fibres when interlaced with the first fibres. Interlaced fibres extending in a sheet can be referred to as a network of fibres.
In the present application, “integrated” or “integrally” refers to combining, coordinating or otherwise bringing together separate elements so as to provide a harmonious, consistent, interrelated whole. In the context of a textile, the textile can have various sections comprising networks of fibres with different structural properties. For example, a textile can have a section comprising a network of conductive fibres and a section comprising a network of non-conductive fibres. Two or more sections comprising networks of fibres are said to be “integrated” together into a textile (or “integrally formed”) when at least one fibre of one network is interlaced with at least one fibre of the other network such that the two networks form a layer of the textile. Further, when integrated, two sections of a textile can also be described as being substantially inseparable from the textile. Here, “substantially inseparable” refers to the notion that separation of the sections of the textile from each other results in disassembly or destruction of the textile itself.
In some examples, conductive fabric (e.g. group of conductive fibres can be knit along with (e.g. to be integral with) the base fabric (e.g. surface) in a layer. Such knitting may be performed using a circular knit machine or a flatbed knit machine, or the like, from a vendor such as Santoni or Stoll.
As described, the textile interconnection system 2200 includes the textile receptacle 2210 coupled to the textile substrate 2270. In some examples, the textile substrate 2270 may include one or more conductive or non-conductive fibers for transmitting/receiving data signals or power signals between the controller device received within the textile receptacle 2210 and one or more sensors, actuators, or components coupled to the textile substrate 2270.
The textile receptacle 2210 may project from the portion of the textile substrate 2270 to form a cavity for receiving the controller device. In some embodiments, the textile receptacle 2210 may project from the portion of the textile substrate 2270 to form a pocket-like cavity for receiving the controller device. The textile docking device 2250 may be received within the textile receptacle 2210 and may be configured as an electrical and/or mechanical interconnection interface between the controller device and the textile substrate 2270. For example, the textile docking device 2250 may be coupled to at least one conductive fibre of the textile substrate 2270 to provide an electrical interconnection with the at least one conductive fiber of the textile substrate 2270. In some embodiments, the textile receptacle 2210 may include textile material that is substantially similar to the textile substrate 2270. As such, the textile receptacle 2210 may be an extension that projects or protrudes from a surface of the textile substrate 2270.
In some embodiments, when the textile receptacle 2210 receives the controller device, the textile receptacle 2210 may be configured as a mechanical encasing providing a physical barrier for the controller device from external elements such as moisture, physical disturbances, or other external environmental elements. For instance, the textile receptacle 2210 may include moisture-resistant material configured as a moisture barrier for the controller device received within the textile receptacle 2210 (e.g. pocket-like cavity).
In some embodiments, the portion of the textile substrate 2270 associated with the textile receptacle 2210 may be configured with traces or electrodes for integrating electronic hardware. For example, the portion of the textile substrate 2270 associated with the textile receptacle 2210 may include one or more conductive traces 2212 or conductive pads 2214.
The conductive traces 2212 or conductive pads 2214 may be inlaid on the textile substrate 2270. The conductive traces 2212 or the conductive pads 2214 may be associated with the textile receptacle 2210. For instance, the conductive traces 2212 or the conductive pads 2214 may be positioned on a portion of the textile substrate 2270 and within or proximal the pocket-like cavity of the textile receptacle 2210.
The conductive pads 2214 may be positioned such that the conductive pads may interconnect or mate with electronic pads of the controller device, when the controller device is received within the textile receptacle 2210.
The conductive traces 2212 or conductive pads 2214 may be coupled to one or more conductive fibers of the textile substrate 2270, and the conductive traces 2212 or conductive pads 2214 may be configured to transmit / receive data signals or power signals between the textile substrate 2270 and the controller device received within the textile receptacle 2210.
In some embodiments, the conductive traces 2212 or the conductive pads 2214 may be coupled to a support board 2216. In some examples, the support board 2216 may be a printed circuit board.
In some embodiments, the portion of the textile substrate 2270 associated with the textile receptacle 2210 may include one or more mounting apertures. The mounting apertures may be configured to receive the textile docking device 2250. The textile docking device 2250 may be a printed circuit board for interfacing with the controller device received within the textile receptacle 2210.
In some embodiments, the textile substrate 2270 may be disposed between the textile docking device 2250 and the support board 2216. The support board 2216 may provide foundational support to the textile receptacle 2210. The conductive traces 2212 or conductive pads 2214 may be configured to interface the textile docking device 2250 and the textile substrate 2270. The conductive traces 2212 or conductive pads 2214 may be configured to transmit/receive power or data signals between the textile substrate 2270 and the textile docking device 2250.
In some embodiments, the textile docking device 2250 may be coupled to the textile substrate 2270 directly without the support circuit board 2216.
In some embodiments, the textile docking device 2250 may be configured as an electronic circuit (e.g. a printed circuit board including conductive pads) and one or more fastener components. The fastener components may include one or more grommets 2254 or one or more heat stake apertures 2256. The grommets 2254 or heat stake apertures 2256 may correspond to or align with apertures or other fastening features of the textile substrate 2270, and the textile docking device 2250 may be coupled within the textile receptacle 2210 via one or more grommets 2254 or heat stake apertures 2256.
The textile docking device 2250 may include one or more circuit connection pads 2252 substantially aligning with conductive traces 2212 or conductive pads 2214 positioned proximal or within the pocket-like cavity of the textile receptacle 2210.
In some embodiments, the textile interconnection system 2200 may include a housing 2218 received within the textile receptacle 2210. The housing 2218 may be configured to provide a substantially structured frame for the textile receptacle 2210, and the controller device may be mechanically received within the housing 2218. In some embodiments, the housing 2218 may be configured to provide a mechanical interconnection between the received controller device and the textile substrate 2270.
In some embodiments, the textile docking device 2250 may be coupled or combined with the housing 2218, and collectively may electrically and/or mechanically receive the controller device within the textile receptacle 2210.
In some embodiments, the one or more grommets 2254 may be pressed or crimped, and pins (e.g. plastic pins) from the housing 2218 may align the textile docking device 2250, the conductive traces 2212/conductive pads 2214, and the support circuit board 2216. In some embodiments, one or more heat stakes may be inserted within one or more heat stake apertures 2256 to provide mechanical support for components of the textile interconnection system 2200.
As described in the present application, the textile receptacle 2210 may receive a controller device. The controller device may be mechanically interconnected to the textile substrate 2270 by the housing 2218 and may be electronically interconnected to the textile substrate 2270 by the textile docking device 2250. The controller device may be configured as a power supply, a power receiver/storage device, a data communication bus, a sensor platform/device, an actuator platform/device, or a combination of any of the foregoing, among other devices.
In some embodiments, the housing 2218 may include a magnet, positioned within the textile receptacle 2210. When the controller device is received within the textile receptacle 2210, including the housing 2218, the magnet (not illustrated in
As illustrated in embodiments described in the present application, the textile interconnection system 2200 may provide interconnections between the controller device and the textile substrate 2270 for sharing power or electronic data communications. As sensor devices, actuator devices, or other electronic devices integrated throughout the textile substrate 2270 may require power signals or data signals to interoperate with one or more devices connected via a network of the textile substrate 2270, the textile interconnection system 2200 may be configured to interconnect electronic devices disparately located in the power/data network provided by the textile substrate 2270. For example, the textile substrate 2270 may provide a plurality of disparately located sensors for obtaining physiological data (e.g. measuring impedance on surface of user skin, etc.) from a plurality of locations on a user's body. The textile interconnection system 2200 may provide an electrical and/or mechanical interconnection among the disparately located sensors or controller devices for collecting physiological data collected from the disparately located sensors.
In some embodiments, the textile receptacle 2210 may include electronic devices configured to provide intermediary communications. For example, the textile receptacle 2210 may include electronic devices configured as a data messaging hub or data messaging bus for coordinating data packet transmissions across conductive traces 2212 (e.g. a communication network). In some embodiments, the textile receptacle 2210 or the textile docking device 2250 may include data clock generation devices for generating data clock signals to synchronize data acquisition or data transfer operation. The data clock generation devices may be configured to provide reference timing signals.
Reference is made to
In some embodiments, the one or more grommets 2254 may be constructed of conductive material, and may conductive electrical signals to/from the support circuit board 2216. In some embodiments, the one or more grommets 2254 may be configured to provide a vertical interconnect access (VIA) of a printed circuit board. In some embodiments, the one or more grommets 2254 may be configured as a vertical interconnect access to electrically interconnect the textile docking device 2250 and the support board 2216. In some embodiments, the one or more grommets 2254 may be electrical ground paths for the textile docking device 2250. In some embodiments, the one or more grommets 2254 may align with apertures or other fastening features of the textile substrate 2270. In some embodiments, the one or more grommets 2254 may be configured as a mechanical fastener or be configured as mechanical support.
In some embodiments, the textile receptacle 2210 may be an extension of the textile substrate 2270. The textile receptacle 2210 may project or protrude from a surface of the textile substrate 2270.
Reference is made to
In some embodiments, the textile receptacle 2210 may project or protrude from the surface of the textile substrate 2270 to form the pocket-like cavity for receiving other electronic devices, such as physiological sensor devices for acquiring physiological data. For instance, the physiological sensor devices may include one-time use electrodes that may require replacement following each physiological data acquisition session.
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In the embodiment illustrated in
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The textile interconnection system 2600 may include a textile substrate 2670. The textile substrate 2670 may include conductive pads 2614 configured to transmit/receive power or data signals between the textile substrate 2670 and a controller device received by the textile interconnection system 2600. In some embodiments, the conductive pads 2614 may be coupled, via conductive traces (not illustrated in
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The computing device 3000 includes at least one processor 3002, memory 3004, I/O interface 3006, and at least one network communication interface 3008.
The processor 3002 may be a microprocessor or microcontroller, a digital signal processing (DSP) processor, an integrated circuit, a field programmable gate array (FPGA), a reconfigurable processor, a programmable read-only memory (PROM), or combinations thereof.
The memory 3004 may include a computer memory that may be located either internally or externally such as, for example, random-access memory (RAM), read-only memory (ROM), compact disc read-only memory (CDROM), electro-optical memory, magneto-optical memory, erasable programmable read-only memory (EPROM), and electrically-erasable programmable read-only memory (EEPROM), Ferroelectric RAM (FRAM).
The I/O interface 3006 may enable the computing device 3000 to interconnect with one or more input devices, such as a keyboard, mouse, camera, touch screen and a microphone, or with one or more output devices such as a display screen and a speaker.
The network interface 3008 may be configured to receive and transmit data sets, for example, to a target data storage or data structures. The target data storage or data structure may, in some embodiments, reside on a computing device or system such as a mobile device.
The term “connected” or “coupled to” may include both direct coupling (in which two elements that are coupled to each other contact each other) and indirect coupling (in which at least one additional element is located between the two elements).
Although the embodiments have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the scope. Moreover, the scope of the present application is not intended to be limited to the particular embodiments of the process, machine, manufacture, composition of matter, means, methods and steps described in the specification.
As one of ordinary skill in the art will readily appreciate from the disclosure, processes, machines, manufacture, compositions of matter, means, methods, or steps, presently existing or later to be developed, that perform substantially the same function or achieve substantially the same result as the corresponding embodiments described herein may be utilized. Accordingly, the appended claims are intended to include within their scope such processes, machines, manufacture, compositions of matter, means, methods, or steps.
The description provides many example embodiments of the inventive subject matter. Although each embodiment represents a single combination of inventive elements, the inventive subject matter is considered to include all possible combinations of the disclosed elements. Thus if one embodiment comprises elements A, B, and C, and a second embodiment comprises elements B and D, then the inventive subject matter is also considered to include other remaining combinations of A, B, C, or D, even if not explicitly disclosed.
As can be understood, the examples described above and illustrated are intended to be exemplary only.
Thus, it is appreciated that the optimum dimensional relationships for the parts of the invention, to include variation in size, materials, shape, form, function, and manner of operation, assembly and use, are deemed readily apparent and obvious to one of ordinary skill in the art, and all equivalent relationships to those illustrated in the drawings and described in the above description are intended to be encompassed by the present invention.
Furthermore, other areas of art may benefit from this method and adjustments to the design are anticipated. Thus, the scope of the invention should be determined by the appended claims and their legal equivalents, rather than by the examples given.
This application is a continuation-in-part of PCT Patent Application number PCT/CA2018/051654, filed on Dec. 21, 2018, which claims priority from U.S. provisional patent application No. 62/614,380, filed on Jan. 6, 2018, the entire contents of which are hereby incorporated by reference herein. This application also claims priority from U.S. provisional patent application No. 62/789,356, filed on Jan. 7, 2019; the entire contents of which are hereby incorporated by reference herein.
Number | Date | Country | |
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62789356 | Jan 2019 | US | |
62614380 | Jan 2018 | US |
Number | Date | Country | |
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Parent | PCT/CA2018/051654 | Dec 2018 | US |
Child | 16735839 | US |