TIMING SYSTEM AND DEVICE AND METHOD FOR MAKING THE SAME
A timing device for indicating the passage of a duration of time is disclosed. The timing device and system, in accordance with the embodiments of the invention, comprise an electrochemical component which generates a visual and/or audio indication of the passage of time. The timing device further comprises a compensating element, such as a varistor, a thermistor and/or combinations thereof. The compensating element regulates the response of the device with respect to changes in temperature. The timing device is configured to indicate the passage of a single duration of time or comprises zones that are activated in a range of prescribed times and individually or collectively indicate the passage of time or the passage of a range of times.
This patent application is a continuation-in-part of the co-pending U.S. patent application Ser. No. 10/376,672 filed Feb. 26, 2003 and entitled “TIMING SYSTEM AND DEVICE AND METHOD FOR MAKING THE SAME,” which is a continuation-in-part of the co-pending U.S. patent application Ser. No. 10/319,233 filed Dec. 13, 2002, and entitled “TIMING SYSTEM AND DEVICE AND METHOD FOR MAKING THE SAME.” This patent application also claims priority under 35 U.S.C. 119 (e) of the co-pending U.S. Provisional Patent Application Ser. No. 60/469,467, filed May 8, 2003, and entitled “TIMING SYSTEM AND DEVICE AND METHOD FOR MAKING THE SAME”. The U.S. patent application Ser. No. 10/376,672 filed Feb. 26, 2003 and entitled “TIMING SYSTEM AND DEVICE AND METHOD FOR MAKING THE SAME,” the U.S. patent application Ser. No. 10/319,233 filed Dec. 13, 2002, and entitled “TIMING SYSTEM AND DEVICE AND METHOD FOR MAKING THE SAME and the Provisional Patent Application Ser. No. 60/469,467, filed May 8, 2003, and entitled “TIMING SYSTEM AND DEVICE AND METHOD FOR MAKING THE SAME” are also hereby incorporated by reference.
FIELD OF THE INVENTIONThe invention relates to timing systems and devices and a method for making the same. More specifically, the invention relates to systems and devices for and methods of indicating the passage of a duration of time.
BACKGROUND OF THE INVENTIONThere are a number of different timing systems and devices, generally referred to as time-temperature indicators (TTIs), which can be used to monitor the exposure of objects to a range of temperatures over a specified period of time. In an early example, Witonsky, in U.S. Pat. No. 3,942,467, describes a time-temperature indicator with an encapsulated inner container and a pH sensitive dye solution contained therein. The device of Witonsky further has an encapsulated outer container containing an organic material which undergoes solvolysis. The outer container and the inner container are separated by a membrane. When the membrane between the inner container and the outer container is broken, the contents of the containers mix and over a period of time change color, thus providing an indication of the passage of a duration of time. A number of other time-temperature indicators utilize wicking techniques (such as described in U.S. Pat. Nos. 5,709,472 and 6,042,264, both issued to Prusik et al.) or diffusion layer techniques (such as described in U.S. Pat. No. 4,629,330 issued to Nichols and U.S. Pat. Nos. 5,930,206 and 5,633,835 both issued to Haas et al.). In U.S. Pat. No. 6,198,701 issued to De Jonghe et al., an electrochemical timing device is described, whereby consumption of an electrode is used to provide an indication of the passage of a duration of time.
Time-temperature indicators can have a number of different applications for indicating when an event or activity needs to take place. For example, time-temperature indicators have applications for indicating when perishable materials have expired and need to be thrown out. Time-temperature indicators also have applications for general inventory management, for monitoring projects, activities and a host of other time and/or temperature dependent events. Therefore, there is a continued need to develop reliable timing systems and devices which can be used for a variety of different applications.
SUMMARY OF THE INVENTIONThe present invention is directed to a device and system for indicating the passage of a duration of time and a method of making the same. While the present invention is referred to herein as a timing device, it is understood that the timing device of the present invention can also be sensitive to temperature. While a timing device, in accordance with the embodiments of the invention, can be configured to be more or less sensitive to temperature, the timing device will generally react, or change, at a faster rate at higher temperatures unless the timing device is configured with a temperature compensating element, such as described in detail below.
A timing device, in accordance with the embodiments of the present invention, is a chemical-based timing device, electrochemical-based timing device, or a combination thereof. The timing device, when actuated, provides a visual indication of a passage of time. The timing device is configured as a “stand alone” indicator or, alternatively, is configured to be coupled with any number of circuits which also provide an audible signal or otherwise sense and/or store information regarding the operation of the device.
The device preferably comprises a lens, a base and means for altering the visibility of the base through the lens and thereby indicating the passage of a duration of time. The means for altering the visibility of the base through the lens preferably comprises an optical medium positioned between the lens and the base. The optical medium comprises chemicals and/or elements of a battery that react or otherwise change over time and, thereby alters the visibility of the base through the lens. For example, one or more of the materials, layers or components of the optical medium are converted from opaque to transparent or, alternatively, from transparent to opaque, thereby increasing or decreasing the visibility of the base through the lens, respectively. Alternatively, one or more of the materials, layers or components of the optical medium are dissolved or depleted, thereby altering the visibility of the base through the lens.
In accordance with the embodiments of the invention, the optical medium comprises a solid layer positioned between the lens and the base, and a fluid layer positioned between the solid layer and the base. Because the solid layer is preferably plated or coated directly onto the lens, the solid layer is also referred to herein as a lens coating layer. The fluid layer contains gel, water and any suitable chemical(s) required to change the solid layer from opaque to transparent, change the solid layer from transparent to opaque, deplete the solid layer, or dissolve the solid layer, as explained in detail below. In the preferred embodiment of the invention, the solid layer is opaque and when the device is actuated, the fluid layer dissolves the solid layer over a duration of time, thereby making the base visible through the lens and indicating the passage of a duration of time.
In further embodiments of the invention, a timing device comprises an indicator between the lens and the lens coating layer to enhance the visual indication of the passage of time. Suitable indicators are fluids or solids, and can include, but are not limited to, pH indicators and reactive dye indicators, which generate a color change when reacted with the fluid layer, after the fluid layer sufficiently depletes or dissolves the lens coating layer. Alternatively, the lens coating layer is a semi-porous membrane layer, wherein the indicator provides a color change when a sufficient amount of the reactive species from the fluid medium migrates through the membrane layer.
In still further embodiments of the invention, a timing device comprises a battery, wherein at least a portion of the optical medium between the solid layer and the base actively participates in an electrochemical process resulting in a visual change indicating the passage of a duration of time. In accordance with this embodiment of the invention, the battery is a galvanic cell and the optical medium comprises an electrolyte. A galvanic cell is a battery in which reduction and oxidation of species within the battery will occur spontaneously as long as there is a conductive path from a first electrode of the cell to a second electrode of the cell. In operation a material within the electrolyte is plated between the base and the lens, thereby reducing the visibility of the base through the lens. Alternatively, an opaque electrode positioned between the lens and the base is depleted, thereby increasing the visibility of the base through the lens.
In still further embodiments of the invention, the battery is an electrolytic cell. An electrolytic cell requires a current from another battery, or other current source, to drive the reduction and oxidation of species within the battery. In accordance with this embodiment, a current from an external battery, or current source, flows through the battery and a material within the electrolyte is plated out between the lens and the base, thereby reducing the visibility of the base through the lens. Alternatively, an opaque electrode positioned between the lens and the base is depleted, thereby increasing the visibility of the base through the lens.
Regardless of whether a timing device is configured to operate as a galvanic cell or as an electrolytic cell, the timing device can comprise a colored electrolyte. In accordance with the embodiments of the invention, the colored electrolyte becomes visible after depleting one or more electrode materials positioned between a transparent lens and the colored electrolyte, thereby indicating the passage of a duration of time. For example, a timing device comprises a clear lens formed from a polymer, such as polyester. The polyester lens is coated with a first electrode material, such as aluminum. The timing device further comprises a base structure with a second electrode material. The second electrode material can be any metal with a reduction potential that is different from a reduction potential of the first electrode material. If the device is being operated as an electrolytic cell, as explained above, then the reduction potential of the first electrode material and that of second electrode material can be the same. Between the first electrode material and the base structure is the colored electrolyte, and when the device is activated the first electrode material is depleted from the transparent lens and the colored electrolyte becomes visible, thereby indicating the passage of the duration of time.
In yet further embodiments of the invention, a timing device is configured to operate as a galvanic cell or as an electrolytic cell and comprises a modified electrolyte. In accordance with this embodiment, the modified electrolyte includes a compensating material to control resistance to ion transport or migration through the modified electrolyte as a function temperature. For example, magnesium dioxide powder or granules are mixed with an ionic aqueous or gel electrolyte solution to provide a temperature dependent resistance to ion transport or migration through the ionic aqueous or gel electrolyte solution.
In accordance with further embodiments of the invention, a timing device is configured with a lens structure and/or the base structure formed from a conductive polymer with an electrode material coated thereon. The conductive polymer is believed to help ensure uniform plating and/or depletion of electrode materials when the device is activated, such as described in detail above. Alternatively, or in addition to the use of a conductive polymer, as described above, a metal screen can be in contact with, or imbedded in, one or more of the electrode materials to help ensure uniform plating and/or depletion of electrode materials.
In still further embodiments of the invention, a timing device is configured to operate as an electrochemical cell and includes an electrolyte with an indicator. For example, the timing device comprises an electrolyte with a pH indicator that changes color when the electrochemical cell is activated, such as described above, and the electrochemical cell generates a sufficient concentration of an ion or a pH altering species within the electrolyte.
A timing device, in accordance with the embodiments of the invention, is actuated using any number of different mechanisms or combination of mechanisms. For example, if the timing device is a chemical-based timing device, the timing device is preferably formed in parts, wherein a first part comprises a first reactive region and a second part comprises a second reactive region. To form an activated device, the first part and the second part are brought together and the first reactive region and the second reactive region are held in an eclipsed or overlapping position and in contact. Alternatively, a chemical-based timing device comprises a membrane or a removable structure separating the reactive regions of the device, wherein the membrane is broken or the structure is removed to activate the device.
In accordance with the embodiments of the invention, a timing device is an electrochemical-based timing device with electrodes that are in electrical communication with each other. The timing device further includes one or more electrolyte solutions that are positioned between the electrodes and that are separated by a membrane. The membrane can be formed from plastic, glass or any other material or combination of materials that are capable of preventing or reducing the migration of ions through the electrolyte and, thus, prevent or reduce the flow of current between the electrodes. To actuate the timing device, the membrane is ruptured or broken allowing the migration of ions through the electrolyte and allowing current to flow between the electrodes, wherein depleting or plating one of the electrode materials generates a visible change indicating passage of a duration of time, as described in detail above.
Alternatively, the timing device is an electrochemical-based timing device that is actuated with a switch mechanism that closes a circuit between electrode elements of a galvanic or an electrolytic cell. Alternatively, the device is fabricated in parts as described above, wherein the parts have contact features, which when brought together close a circuit between the electrode elements of a galvanic or an electrolytic cell. An actuator switch, in accordance with further embodiments of the invention, is in electrical communication with a thermosensor, wherein the thermosensor instructs the actuator switch to close a circuit between electrode elements of a galvanic or an electrolytic cell within a range of temperatures.
In accordance with yet further embodiments of the invention, a timing device and system comprises a photo-sensitive component, element or film. For example, a timing device comprises a piece of photographic film, which is color film, black and white film or a combination thereof. The photographic film is formed from a base with a photographic medium coated or deposited thereon, wherein the photographic film is capable of being activated to change color or shade and thereby indicate the passage of a duration of time. The photographic material is any photographic medium, but preferably comprises a silver-based material including, but not limited to, silver chloride, silver fluoride, silver iodide and/or combinations thereof. In yet other embodiments of the invention the photographic medium comprises a silver-soap (Ag+ cations in a fatty acid such as stearic acid) often used in thermally-activated films. If the photographic medium is a silver halide, the silver halide is mixed with a binder, such as cellulose or gelatin, to hold the silver halide material on the base.
The photographic material, in accordance with the embodiments of the invention, is made to be thermally and/or light sensitive using any number of techniques known in the art, including the addition of sulfur and gold and/or a dye, such as an infrared absorbing dye. To activate the photographic medium a developer is applied to the film. There are a number of materials that can be used for developing photographic materials, such as hydroquinone-based developers. Generally, all developers contain chemicals that assist in the reduction of silver halide or silver cations to form a darkened or colored image.
In accordance with the embodiments of the invention, a developer is incorporated into the construction of the film and a timing device is thermally activated or is activated by removing a barrier between the photographic material and the developer. Alternatively, the photographic material and the developer are included on separate parts or regions of a timing device and are activated by bringing together a part or region of the film with the photographic material with a part or region of the film with the developer.
In accordance with yet further embodiments of the invention, a device comprises a film with zones that change color at different rates and, therefore, provide an indication of the passage of a range of times. Each of the zones comprises a photographic material, as explained above, or other chemical and/or electro-chemical materials that can be activated to change color at different rates. When the zones comprise photographic materials, the zones are made to have different reaction rates by using photographic materials with different sensitivities to heat, light and/or developer, and/or by varying the thickness of diffusion layers deposited over the zones. In accordance with further embodiments of the invention, the zones are made to have different rates of reaction and/or sensitivity to a developer by pre-treating the zones to a range of different light and/or heat exposures, wherein the zones with longer exposures will develop and change color faster than zones with shorter exposures.
A system, in accordance with the embodiments of the invention, comprises a timing film, such as described above, and further comprises an adhesion layer for attaching pieces of film to consumer articles, such as containers of leftover food. The system also preferably comprises a dispenser for conveniently dispensing pieces of film from a stack or roll of the timing film and means, such as a magnet, for attaching the dispenser to a household appliance.
In accordance with a preferred embodiment of the invention, a timing device comprises an electrochemical structure, such as described above, that is capable of being activated and configured to generate an audio and/or visual response to indicate a passage of a duration of time after being activated. The timing device also preferably comprises a compensating element such as a varistor, a thermistor and/or combinations thereof. The compensating element is electrically coupled to the electrochemical structure and regulates the time for the response with respect to changes in temperature.
In still further embodiments of the invention, a timing device comprises an electrochromic structure configured to generate a visual indication in a prescribed period of time after being activated. The timing device also preferably comprises a driver circuit. The driver circuit is electrically coupled to the electrochromic structure and is configured to actuate the electrochromic structure in the prescribed period of time. The driver circuit can include a timing circuit and a battery structure. Further, the timing circuit can be programmable to generate a visual indication in a range of prescribed periods of time. Also, the timing device can include zones which are each configured to indicate a passage of a different and predetermined duration of time.
Referring to
Still referring to
Referring now to
Still referring to
In still further embodiments of the invention, the lens coating layer 205 comprises a reactive species that reacts with an indicator in the fluid layer 207. For example, the lens coating layer 205 comprises a base material, such as sodium bicarbonate, which is leached from the lens coating layer 205 or is dissolved into the fluid layer 207 from the lens coating layer 205. The fluid layer 207 comprises a pH indicator and an acidic material and when a sufficient amount of base material is dissolved into the fluid layer 207, then the acidic material is neutralized and the pH indicator changes color, indicating the passage of a duration of time.
In still further embodiments of the invention, a timing device 200 comprises a diffusion material 209. When the device 200 is activated, the diffusion material 209 begins to diffuse through the fluid layer 207, as indicated by the arrows 215. When the diffusion material 209 reaches the lens coating layer 205, the diffusion material 209 reacts with the lens coating layer 205 to provide a color change, dissolve the lens coating layer 205 and react with the indicator layer 203, or any combination thereof, to indicate the passage of a duration of time.
Still referring to
Now referring to
Now referring to
In use, an activated device is formed by removing a first part 327 comprising a first reactive region 322 and a second part 329 comprising a second reaction region 324 from the tapes 321 and 323 through the perforations 326 and 328, respectively. The first part 327 and the second part 329 are then combined with the first reactive region 322 and the second reactive region 324 eclipsed and in contact, as explained in detail above.
Now referring to
Referring now to
In accordance with the embodiments of the invention, the timing device 420 comprises a lens 425 formed from a transparent polymer, such as polyester, or from a conductive polymer that is coated with a metal lens coating layer 423, such as aluminum. The timing device 420 further comprises a base structure 421 and a second electrode material 422. The second electrode material 422 can be any metal with a reduction potential that is different from a reduction potential of the first electrode material 423. Alternatively, the second electrode material 422 can be any metal with a reduction potential that is the same as the reduction potential of the first electrode material 423, when the device 420 is being operated as an electrolytic cell (viz. has a battery structure 421 or other source of electrons to drive the reduction and oxidation process). Between the first electrode material 423 and the base structure 421 is a colored electrolyte 431. When the timing device 420 is activated, the first electrode material 423 is depleted from the transparent lens 423 and the colored electrolyte 431 becomes visible, thereby indicating the passage of the duration of time.
In yet further embodiments of the invention, a metal screen (not shown) is in contact with one or both of the metal lens coating layer 423 and the second electrode material 422, to help ensure uniform depletion and/or plating of the electrode materials.
In still further embodiments of the invention, a timing device 420 comprises an electrolytes 431 with an indicator that changes when the device 420 is activated, such as described above, and the electrochemical cell generates a sufficient concentration of an ion or a pH altering species within the electrolyte.
In accordance with a preferred embodiment of the invention, the first electrode material 423 and the second electrode material 422 are in electrical communication with each other. The timing device 420 further includes a membrane 426 that is positioned between the electrolytes 431 and 431′. The membrane 426 is formed from plastic, glass or any other material or combination of materials that are capable of preventing or reducing the migration of ions between the electrolytes 431 and 431′ and, thus, prevent or reduce the flow of current between the first electrode material 423 and the second electrode material 422. In operation, the timing device 420 is actuated by rupturing or breaking the membrane 426, thereby allowing migration of ions between the electrolytes 431 and 431′ and allowing current to flow between the first electrode material 423 and the second electrode material 422, wherein depletion of the first electrode material 423 generates a visible change that indicates passage of a duration of time.
In accordance with yet further embodiments of the invention, a timing device 440 is coupled to a circuit 450, as shown in
In still further embodiments of the invention, a timing device comprises a galvanic cell or an electrolytic cell, wherein one or more electrochemically active materials between a transparent lens and a base, such as metal ions and/or electrodes, are configured to be plated out or depleted and alter the visibility of the base through the lens, thereby indicating the passage of a duration of time. If a timing device is an electrochemical-based timing device, an actuator switch mechanism comprising electrical contacts can be used to actuate the device. The timing device, in accordance with still further embodiments of the invention, is in electrical communication with a thermosensor (not shown), wherein the thermosensor instructs the actuator switch to close a circuit between electrode elements of a galvanic or electrolytic cell within a range of temperatures.
In yet further embodiments of the invention, a timing device comprises a galvanic cell or an electrolytic cell with electrodes that are asymmetrically positioned or shaped, such that one of depletion or plating of one of the electrodes occurs and at uneven rate across a viewable portion of a lens. Accordingly, a visual indication of the passage of time moves across the viewable portion of the lens and the timing device indicates a range of durations of time. For example, a timing device is configured to deplete an electrode deposited on the viewable portion of the lens from one side of the lens to the other side of the lens over the range of durations of time. Timing devices in accordance with further embodiments of the invention are configured to indicate passage of a range of durations of time using electrochemical zones or photographic zones, such as described below.
Referring to
Still referring to
Still referring to
Still referring to
In accordance with still further embodiments of the invention, the section of film 600 further comprises a barrier layer 613 that can be pulled out or removed to activate the device and allow the developer layer 611 to diffuse through the layer 615 and cause the photographic layer 605 to change color or darken, thereby indicating the passage of time. Alternatively, the photographic layer 605 and the developer layer 611 are formed as separate parts that can be brought together to activate the device, as explained in detail above with reference to
Still referring to
Now referring to
In accordance with yet further embodiments of the invention, a timing device utilizes an electrochromic material. An electrochromic material refers to a material that changes color when the composition of the material is changed by use of an electrochemical cell or other voltage source. Electrochromic materials often exhibit reversible color changes and can be switched between two or more color states by reversing the polarity of an applied potential of a layer comprising the material that is in contact with an ion or metal ion source, as described in detail below. A number of materials exhibit elelctrochromism, including but not limited to, tungsten oxide, molybdenum oxide, titanium oxide, niobium oxide, iridium oxide and rhodium oxide, to name a few.
Now referring to
Now referring to
In accordance with yet further embodiments the invention, the driver circuit 910 is programmable and can be programmed to switch or change the color state of the layered electrochromic structure 916 in a range of prescribed times that are selectable by the user and/or manufacturer. In still further embodiments of the invention, the layered electrochromic structure 916 is divided into zones, wherein the zones are activated in a range of prescribed times and the zones individually or collectively change color to indicate the passage of time or the passage of a range of times, such as previously described with reference to
In accordance with still further embodiments of the invention, a timing device comprises an electrochemical cell configuration, such as described with respect to
The current invention has applications for marking when any number of different events need to take place and/or for timing the duration of any number of different events. For example, the timing device of the present invention has applications for indicating when perishable materials have expired and need to be thrown out, indicating the age of inventory and managing when the inventory needs to be rotated, tracking a deadline and a host of other time and/or temperature dependent events. One advantage of the present invention is that the timing device can be fabricated in two or more reactive parts, wherein the device is not activated, or sensitive to the environment (such as temperature), until the parts are coupled together, as explained in detail above. Accordingly, the shelf life of the timing device prior to use is enhanced and the sensitivity of the device to environmental conditions prior to use is reduced.
The present invention has been described in terms of specific embodiments incorporating details to facilitate the understanding of the principles of construction and operation of the invention. As such, references, herein, to specific embodiments and details thereof are not intended to limit the scope of the claims appended hereto. It will be apparent to those skilled in the art that modifications can be made in the embodiment chosen for illustration without departing from the spirit and scope of the invention.
Claims
1-29. (canceled)
30. A timing device comprising:
- a. an electrochemical structure comprising a first electrode and a second electrode;
- b. an indicator for visually indicating a period of time and coupled to the electrochemical structure; and
- c. a driver circuit for actuating the timing device to visually indicate the period of time.
31. The timing device of claim 30, wherein the indicator comprises an electrochromic layer.
32. The timing device of claim 30, wherein the indicator switches from transparent to opaque to visually indicate the period of time.
33. The timing device of claim 30, wherein the indicator switches from opaque to transparent to visually indicate the period of time.
34. The timing device of claim 30, wherein the driver circuit applies an electrical potential across the timing device to actuate the timing device.
35. The timing device of claim 30, wherein the driver circuit comprises a timing circuit.
36. The timing device of claim 30, wherein the driver circuit is programmable.
37. The timing device of claim 30, wherein the driver circuit acts as a switch that maintains a circuit that is open for a prescribed period of time.
38. The timing device of claim 30, wherein the timing device is divided into zones that collectively provide the visual indication of a range of times.
39. The timing device of claim 30, wherein the timing device comprises a plurality of sub cells that collectively provide the visual indication of the range of times.
40. A timing system comprising:
- a. first transparent layer,
- b. a second transparent layer;
- c. an indicator between the first transparent layer and the second transparent layer, wherein the indicator visually indicates a period of time;
- d. a base structure viewable through the first transparent layer and the second transparent layer when the indicator is in a transparent state; and
- e. a driver circuit for actuating the timing device to visually indicate the period of time.
41. The timing system of claim 40, wherein the driver circuit comprises a voltage source.
42. The timing system of claim 40, wherein the indicator comprises an electrochromic layer.
43. The timing system of claim 40, wherein the indicator switches from transparent to opaque to visually indicate the period of time.
44. The timing system of claim 40, wherein the driver circuit applies an electrical potential across the timing device to actuate the timing device.
45. The timing system of claim 40, wherein the driver circuit comprises a timing circuit.
46. The timing system of claim 40, wherein the driver circuit is programmable.
47. The timing system of claim 40, wherein the driver circuit acts as a switch that maintains a circuit that is open for a prescribed period of time.
48. The timing system of claim 40, wherein the timing device is divided into zones that collectively provide the visual indication of a range of times.
49. The timing system of claim 40, wherein the timing device comprises a plurality of sub cells that collectively provide the visual indication of the range of times.
50. A method of monitoring a period of time using a timing device:
- a. programming a driver circuit to a prescribed time within a range of times; and
- b. activating the timing device, wherein after activation an indicator of the timing device visually indicates the period of time.
51. The timing device of claim 50, wherein the indicator comprises an electrochromic layer.
52. The timing device of claim 50, wherein the indicator switches from transparent to opaque to visually indicate the period of time.
53. The timing device of claim 50, wherein the indicator switches from opaque to transparent to visually indicate the period of time.
54. The timing device of claim 50, wherein the driver circuit applies an electrical potential across the timing device to actuate the timing device.
Type: Application
Filed: Mar 19, 2019
Publication Date: Jul 11, 2019
Inventor: Fritz S. Braunberger (Sequim, WA)
Application Number: 16/358,350