Apparatus and method for controlled delivery of a gas
AssigneeSelective Micro Technologies, LLC
InventorsRichard A. Hamilton, John J. Warner
Life of this patent
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Abstract
Disclosed are apparatus for delivery of a gas, e.g., carbon dioxide and/or chlorine dioxide, and methods of its use and manufacture. The apparatus includes a sachet constructed in part with a hydrophobic material. The sachet contains one or more reactants that generate a gas in the presence of an initiating agent, e.g., water. The apparatus can also include a barrier layer and/or a rigid frame. In another embodiment, the apparatus is combined with a reservoir that can be used to deliver a gas to the reservoir and, optionally, a conduit. In another embodiment, the apparatus is incorporated into a fluid dispersion system that includes a dispersion apparatus, e.g., a humidifier.
Claims15
An apparatus for delivery of a gas comprising:
- a sachet comprising a hydrophobic water vapor selective membrane;
- and
- an aqueous soluble reactant disposed within the sachet that generates chlorine dioxide in the presence of an initiating agent, wherein the water vapor selective membrane has a water vapor permeability between 2,000 g/m2/24 hrs and 150,000 g/m2/24 hrs, such that the sachet substantially impedes the permeation of a water soluble species out of the apparatus when immersed in water.
An apparatus for delivery of a gas comprising:
- a sachet comprising a hydrophobic water vapor selective membrane;
- a partition disposed within the sachet defining a first volume and a second volume;
- a first aqueous soluble reactant disposed within the first volume;
- and
- a second aqueous soluble reactant disposed within the second volume,
- wherein the first reactant and the second reactant generate chlorine dioxide in the presence of an initiating agent, and
- wherein the water vapor selective membrane has a water vapor permeability between 2,000 g/m2/24 hrs and 150,000 g/m2/24 hrs, such that the sachet substantially impedes the permeation of a water soluble species out of the apparatus when immersed in water.
An apparatus for delivery of a gas comprising:
- a sachet comprising a hydrophobic water vapor selective membrane;
- and
- an aqueous soluble reactant disposed within the sachet that generates chlorine dioxide in the presence of an initiating agent, wherein the sachet has a water intrusion pressure between 100 millibars and 1500 millibars;
- and
- wherein the water vapor selective membrane has a water vapor permeability between 2,000 g/m2/24 hrs and 150,000 g/m2/24 hrs, such that the sachet substantially impedes the permeation of a water soluble species out of the apparatus when immersed in water.
Dependencies are inferred from the claim text.