Gas separation: processes – Electric or electrostatic field – With addition of solid – gas – or vapor
Reexamination Certificate
2005-10-18
2005-10-18
Chiesa, Richard L. (Department: 1724)
Gas separation: processes
Electric or electrostatic field
With addition of solid, gas, or vapor
C095S069000, C095S074000, C096S016000, C096S028000, C096S057000, C096S066000, C096S097000, C096S224000, C422S024000, C422S121000, C422S186300, C422S186040
Reexamination Certificate
active
06955708
ABSTRACT:
Air-treatment apparatus and methods are disclosed that are especially suitable for treating the air in a room or other dwelling or working space. An apparatus embodiment of the subject apparatus includes a housing having air-intake and air-output openings. A gas-filter assembly inside the housing receives air entering the air-intake opening and includes a dual-media filter element having a matrix of fibers to which particles of activated carbon are adhered at mutual points of contact without using an extraneous binder. As air passes through the gas-filter assembly, the carbon particles adsorb odor compounds from the air. At least one electrostatic 3-dimensional (E3D) filter assembly downstream of the gas-filter assembly includes a respective charging element sandwiched between dielectric-fiber filters sandwiched between two respective electrically conductive screens. The screens are electrically grounded while the charging element (which is conductive) is connected to a source of high-voltage DC power. The resulting charges on fibers of the dielectric-fiber filters polarize and attract particles in air passing therethrough.
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Dragotti Victor
Julos John J.
Wiser Forwood Cloud
Chiesa Richard L.
Klarquist & Sparkman, LLP
Shaklee Corporation
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