Abstract: A method for generating chlorine dioxide gas from sodium chlorite solution by photooxidizing the solution to produce chlorine dioxide in an aqueous phase which is gasified by supplying nitrogen or air through the aqueous phase.

Abstract: A chlorine dioxide generator and method for generating chlorine dioxide gas from sodium chlorite through the use of photochemical oxidation, the chlorine dioxide generator comprising a base to operatively support an enlarged hollow substantially cylindrical housing having a lid with a centrally disposed aperture formed therein removably disposed on the upper portion thereof; a chlorine dioxide gas generating chamber supported on the base within the enlarged hollow substantially cylindrical enclosure comprising an elongated substantially cylindrical hollow reaction tube having a reduced upper end, a gas conduit member mounted on the upper portion and partially disposed within the elongated substantially cylindrical transparent hollow reaction tube, said gas conduit member being comprised of an innermost hollow inert gas delivery tube coaxially disposed within the substantially cylindrical transparent hollow reaction tube, and an opaque hollow substantially cylindrical shield including a plurality of apertures

Abstract: This invention relates to a keyboard switch or push button transducer for use in keyboards which makes use of the advantages of resistive and capacitive methods of closure. The switch element is comprised of a resilient conductive element attached to a pad of compressible foam mounted on the end of a key plunger. When the push button or switch plunger is depressed, the switch element is brought into contact with conductive elements etched on a printed circuit board. One of the conductive elements has a coating of dielectric material thereon, and the other conductive element has a raised conductive surface to contact the conductive elastomer sheet prior to the contact with the dielectric material. The insulated area forms a capacitance between the elastomer sheet and the conductive element or metallic pad on the printed circuit board, and the other area of conductor element, being uninsulated, makes a resistive contact with the elastomer.