Apparatus for rapid disinfection of personal items

{
  "publication_number": "US11033645B1",
  "country": "US",
  "kind": "B1",
  "title": "Apparatus for rapid disinfection of personal items",
  "abstract": "Disinfectors that are touchless, high speed, or both for personal electronic devices and the like. A housing defines an internal volume including a disinfection zone and an object entry port of a size to permit entry by an object of interest with exposed surface area. At least one emitter projects a stripe of UV-C light into the disinfection zone. A drive under the control or a controller transport causes relative movement between the object and the emitter to expose the surface area to greater than 3 mJ/cm 2 of UV-C light in less than 90 seconds.",
  "claims": [
    "1. An apparatus comprising: a housing defining an internal volume including a disinfection zone and an object entry port of a size to permit entry by an object of interest, the object of interest having an exposed surface area; a first emitter to emit a stripe of light with a wavelength in the range of 200-280 nm from a first side of the disinfection zone at a first distance from the disinfection zone; a drive to cause relative movement between the first emitter and the object of interest; a carriage to hold the object of interest during disinfection; and a controller to control the relative movement based on the first distance and responsive to a characteristic of the object of interest; and wherein, in use, the exposed surface area is subjected to greater than 3 mJ/cm 2 of light of the wavelength in less than 90 seconds and wherein the object of interest is introduced directly into the object entry port without external packaging, and wherein, contact between the carriage and the object of interest is less than 6% of the exposed surface area of the object of interest.",
    "2. The apparatus of claim 1 wherein the transport comprises: a linear drive; and a platform to retain the object of interest, the platform moved past the first emitter by the linear drive.",
    "3. The apparatus of claim 1 wherein the first emitter comprises: a plurality of light emitting diodes spaced such that emitted light from adjacent members of the plurality overlaps.",
    "4. The apparatus of claim 1 wherein the emitter comprises: a laser and wherein the laser is one of rastered or spread to form the stripe.",
    "5. The apparatus of claim 1 further comprising: a resilient closure allowing the object to pass through the port while occluding light from within the volume, the resilient closure having an internally exposed side and an externally exposed side, wherein the resilient closure contacts a first side and second and is configured to at least partially support the object as it enters the housing.",
    "6. The apparatus of claim 1 further comprising: a second emitter to emit a second stripe of light with a wavelength in the range of 200-280 nm from a second side of the disinfection zone at a second distance from the disinfection zone, the second side opposed to the first side.",
    "7. The apparatus of claim 1 further comprising: a sensor operatively coupled to the controller to signal the presence of the object in the port wherein the controller activates the transport responsive to the presence of the object.",
    "8. The apparatus of claim 7 wherein the sensor further signals to the controller when the object is fully within the internal volume and wherein the controller determines a range of transport responsive to the signals.",
    "9. A touchless disinfection apparatus comprising: a housing defining an internal volume including a disinfection zone and an object entry port of a size to permit entry by an object of interest, the object of interest having an exposed surface area; a first emitter to emit a stripe of light with a wavelength in the range of 200-280 nm from a first side of the disinfection zone at a first distance from the disinfection zone; a drive to transport the object into the disinfection zone and exposes the object out of the housing after disinfection; a carriage to hold the object of interest during disinfection; and a controller to power the first emitter and activate the drive; wherein, in use, the object of interest is introduced directly into the object entry port without external packaging, and wherein, contact between the carriage and the object of interest is less than 6% of the exposed surface area of the object of interest.",
    "10. The apparatus of claim 9 wherein the drive causes relative movement between the first emitter and the object of interest based on at least one characteristic of the object of interest.",
    "11. The apparatus of claim 9 further comprising: a bracket coupled to the housing to couple the housing to a substantially vertical surface.",
    "12. The apparatus of claim 9 wherein the housing has a gross geometry and wherein the gross geometry does not change while the object is moved into and out of the housing.",
    "13. An apparatus comprising: a housing defining an internal volume including a disinfection zone and an object access port of a size to permit entry by an object of interest; means for emitting light with a wavelength in the range of 200-280 nm sufficient to cover a perimeter of the object within the disinfection zone; means for transporting the object into the housing and exposing the object out of the housing after disinfection is complete; and means for controlling the means for transporting and the means for emitting to provide greater than 3 mJ/cm 2 of light of the wavelength in less than 90 seconds to an exposed surface area of the object of interest, wherein, in use, the object of interest is introduced directly into the object entry port without external packaging, and wherein, contact between the means for transporting and the object less than 6% of the exposed surface area of the object of interest.",
    "14. The apparatus of claim 13 further comprising: means for resiliently occluding the object access port while allowing the object to pass through the port while occluding light from within the volume, the means having an internally exposed side and an externally exposed side and wherein the internally exposed side is reflective.",
    "15. The apparatus of claim 13 further comprising: means for sensing operatively coupled to the means for controlling to signal the presence of the object in the port wherein the means for controlling activates the means for transporting responsive to the presence of the object.",
    "16. The apparatus of claim 13 wherein the means for sensing further signals to the means for controlling when the object is fully within the internal volume and wherein the means for controlling determines a range of transport responsive to the signals.",
    "17. The apparatus of claim 13 wherein the exposed surface area is exposed to greater than 30.0 mJ/cm2 of light of the wavelength in less than 90 seconds.",
    "18. The apparatus of claim 13 further comprising: means for causing relative motion between the object of interest and the means for emitting.",
    "19. The apparatus of claim 13 where the housing has a gross geometry including a length, a width and a height and wherein the gross geometry remains substantially unchanged throughout operation."
  ],
  "description_excerpt": "Embodiments of the invention relate ultraviolet disinfection. More specifically embodiments of the invention relate to rapid ultraviolet disinfection of personal items.\n\nThe novel corona virus that causes COVID-19 has been highly disruptive to the global economy. It has also highlighted the degree to which contagion can be spread through contact with everyday items. Personal electronic devices such as cell phones have been found to be significant vectors for viral and bacterial transmission. Taking the smart phones as an example, the normal use of the touch screen result in repeated hand contact with the screen. That contact can result in pathogens transferred from the user's hands to the screen. The pathogens may originate on any surface that the user touches, such as a grocery cart, handrail in public transportation, doorknob are just some examples. When a call comes in, the user then often puts the phone to their ear and risks transfer of the pathogens to their face including potential exposure to the mucous membranes in the mouth and nose which are often the pathway to infection.\n\nIn an effort to combat the spread of the novel corona virus, particular attention in being given to hand washing. Unfortunately, immediately after handwashing the hands are often again contaminated through contact with a pathogenic rich smart phone or other such item. While some devices exist to disinfect smartphones, the typical model is a clam shell enclosure that requires the phone reside therein for thirty minutes or more to complete the disinfecting process. Such time requirement significantly reduces the utility of the device.",
  "cpc": [
    "A61L 2/10",
    "A61L 2/24",
    "A61L 2/26",
    "A61L 2103/05",
    "A61L 2202/11",
    "A61L 2202/12",
    "A61L 2202/14"
  ],
  "ipc": [
    "A61L 2/10",
    "A61L 2/24",
    "A61L 2/26"
  ],
  "assignees": [
    "1LSS Inc"
  ],
  "inventors": [
    "Fernando Mora",
    "Alejandro Baca",
    "Mydul R. Islam"
  ],
  "filing_date": "2020-06-11",
  "publication_date": "2021-06-15",
  "grant_date": "2021-06-15",
  "priority_date": "2020-06-11",
  "application_number": "US-202016899135-A",
  "family_id": "76320855",
  "cited_by_count": 9,
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  ]
}