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AssigneeDonaldson Company, Inc.
InventorsAndrew James Dallas, Lefei Ding, Jon Dennis Joriman, Dustin Zastera, James R. Giertz, Veli Engin Kalayci
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The assemblies of the invention can comprise a fine fiber layer having dispersed within the fine fiber layer an active particulate material. Fluid that flows through the assemblies of the invention can have any material dispersed or dissolved in the fluid react with, be absorbed by, or adsorbed onto, the active particulate within the nanofiber layer. The structures of the invention can act simply as reactive, absorptive, or adsorptive layers with no filtration properties, or the structures of the invention can be assembled into filters that can filter particulate from a mobile fluid while simultaneously reacting, absorbing, or adsorbing materials from the mobile fluid.
A filter media comprising a non-woven filter substrate and a fiber layer or fiber web comprising a substantially continuous fine fiber layer formed on the non-woven filter substrate, the fiber having a diameter of about 0.001 to 5 microns and an active spacer particulate dispersed in a substantially uniform manner in the fiber layer or fiber web, the particulate comprising 0.1 to 50 vol % of the layer or web and the layer or web having a thickness of about 0.0001 to 1 cm and a solidity of about 0.1 to 70%;
A method of removing moisture from an air stream, the method comprising placing a filter element in a location such that a moisture-laden air stream can pass through or pass by the element, the element comprising a non-woven filter substrate and a layer comprising a substantially continuous fine fiber layer formed on the non-woven filter substrate, the fiber having a diameter of about 0.001 to about 5 microns and comprising an active spacer particulate dispersed in a substantially uniform manner in the fiber layer, the particulate comprising 0.1 to 50 vol % of the layer and the layer having a thickness of about 0.0001 to 1 cm and a solidity of about 0.1 to 70%;
Dependencies are inferred from the claim text.