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US 8,524,167 B2Granted
Chlorine dioxide decontamination system and method
OwnerMichael A. Regits, Henry S. Luftman +1inventors
InventorsMichael A. Regits, Henry S. Luftman, Paul W. Lorcheim
Life of this patent
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Abstract
A system includes a portable source of gaseous chlorine dioxide (CD). The source has first source and return couplings for sealingly connecting to a CD generation flow path comprising at least one gas conduit. The CD generation flow path comprises second source and return couplings for sealingly connecting the source to a device to be treated with the CD generation flow path, or a tent structure enclosing the device to be treated. A portable scrubber has third couplings for sealingly connecting to a scrubbing flow path comprising at least one gas conduit for removing the CD from the device or tent structure. The gas conduit has fourth couplings for connecting the device or tent structure to the scrubbing flow path.
Claims27
A system comprising:
- a portable source of gaseous chlorine dioxide (CD), the portable source having a first source coupling and a first return coupling for sealingly connecting the portable source to a CD generation flow path comprising at least one gas conduit, the CD generation flow path comprising a second source coupling and a second return coupling for sealingly connecting the portable source to a device to be treated with the CD generation flow path, wherein the portable source includes:
- a sealed reservoir for containing a volume of water,
- a sealable first dispenser connected to the sealed reservoir for adding a solid CD precursor to the water, wherein the sealable first dispenser includes a solid or powder dispensing cylinder with a dispensing damper slidably mounted therein;
- and
- a sparging tube for introducing air or an inert gas into the water in the sealed reservoir, for releasing the gaseous CD;
- and
- a portable scrubber having a third coupling for sealingly connecting to a scrubbing flow path comprising at least one gas conduit for removing the CD from the device, the at least one gas conduit of the scrubbing flow path having a fourth coupling for connecting the device, to the scrubbing flow path.
4 more elements
A system comprising:
- a portable source of gaseous chlorine dioxide (CD), the portable source having a first source coupling and a first return coupling for sealingly connecting to a CD generation flow path comprising at least one gas conduit, the CD generation flow path comprising a second source coupling and a second return coupling for sealingly connecting the portable source to a device to be treated with the CD generation flow path, wherein the portable source includes:
- a sealed reservoir for containing a volume of water,
- a sealable first dispenser connected to the sealed reservoir for adding a solid CD precursor to the water, and
- a sparging tube for introducing air or an inert gas into the water in the sealed reservoir, for releasing the gaseous CD,
- a portable scrubber having a third coupling for sealingly connecting to a scrubbing flow path comprising at least one gas conduit for removing the gaseous CD from the device, the at least one gas conduit of the scrubbing flow path having a fourth coupling for connecting the device to the scrubbing flow path, wherein the portable scrubber includes a high efficiency particulate air (HEPA) filter using charcoal, through which the gaseous CD in the scrubbing flow path is to be pumped;
- a first blower in the gaseous CD generation flow path for pumping the gaseous CD into the device, and
- a second blower in the scrubbing flow path for pumping the CD through the scrubber.
4 more elements
A system comprising:
- a portable source of gaseous chlorine dioxide (CD), the portable source having a first source coupling and a first return coupling for sealingly connecting to a CD generation flow path comprising at least one gas conduit, the CD generation flow path comprising a second source coupling and a second return coupling for sealingly connecting the portable source to a device to be treated with the CD generation flow path, wherein the portable source includes:
- a sealed reservoir for containing a volume of water,
- a sealable first dispenser connected to the sealed reservoir for adding a solid CD precursor to the water, and
- a sparging tube for introducing air or an inert gas into the water in the sealed reservoir, for releasing the gaseous CD,
- a portable scrubber having a third coupling for sealingly connecting to a scrubbing flow path comprising at least one gas conduit for removing the gaseous CD from the device, the at least one gas, conduit of the scrubbing flow path having a fourth coupling for connecting the device to the scrubbing flow path, wherein the portable scrubber includes:
- a charcoal container, and
- a foot valve screen coupled to the scrubbing flow path for dispersing the gaseous CD through the charcoal container;
- a first blower in the gaseous CD generation flow path for pumping the gaseous CD into the device, and
- a second blower in the scrubbing flow path for pumping the gaseous CD through the scrubber.
6 more elements
A system comprising:
- a portable source of gaseous chlorine dioxide (CD), the portable source having a first source coupling and a first return coupling for sealingly connecting to a CD generation flow path comprising at least one gas conduit, the CD generation flow path comprising a second source coupling and a second return coupling for sealingly connecting the portable source to a device to be treated with the CD generation flow path, wherein the portable source includes:
- a sealed reservoir for containing a volume of water,
- a sealable first dispenser connected to the sealed reservoir for adding a solid CD precursor to the water, and
- a sparging tube for introducing air or an inert gas into the water in the sealed reservoir, for releasing the gaseous CD,
- a portable scrubber having a third coupling for sealingly connecting to a scrubbing flow path comprising at least one gas conduit for removing the gaseous CD from the device, the at least one gas conduit of the scrubbing flow path having a fourth coupling for connecting the device to the scrubbing flow path;
- a first blower in the gaseous CD generation flow path for pumping the gaseous CD into the device,
- a second blower in the scrubbing flow path for pumping the gaseous CD through the scrubber;
- and
- a steam generator and a relative humidity meter, for humidifying the device prior to providing gaseous CD from the portable source of gaseous CD to the device.
6 more elements
A system comprising:
- a portable source of gaseous chlorine dioxide (CD), the portable source having a first source coupling and a first return coupling for sealingly connecting to a CD generation flow path comprising at least one gas conduit, the CD generation flow path comprising a second source coupling and a second return coupling for sealingly connecting the portable source to a device to be treated with the CD generation flow path, wherein the portable source includes:
- a sealed reservoir for containing a volume of water,
- a sealable first dispenser connected to the sealed reservoir for adding a solid CD precursor to the water,
- a sparging tube for introducing air or an inert gas into the water in the sealed reservoir, for releasing the gaseous CD, and
- a sealable second dispenser connected to the sealed reservoir for adding a neutralizing chemical to the water and solid CD precursor;
- and
- a portable scrubber having a third coupling for sealingly connecting to a scrubbing flow path comprising at least one gas conduit for removing the CD from the device, the at least one gas conduit of the scrubbing flow path having a fourth coupling for connecting the device to the scrubbing flow path.
4 more elements
Dependencies are inferred from the claim text.