Alliedsignal Inc.

Other

Honeywell International Inc.

Lixin L Xue

Ronald Paul Rohrbach

Peter D Unger

Daniel E Bause

Gordon William Jones

Russell A Dondero

Gary B Zulauf

Douglas M Dewar

Michael Kwong Chan

Gregory H Barnett

Richard Mace Norris

Kenneth O MacFadden

Greg Kemenah

Samuel L Penrod

An improved oil conditioning filter, for use with an internal combustion engine, includes a mechanically active filter element and a chemically active filter element having a reactive basic conditioner therein. The reactive basic conditioner is provided to counteract acidic combustion products in lubricating oil in an internal combustion engine. In a preferred embodiment of the invention, the chemically active conditioning agent is provided in a plurality of pellets disposed within the oil filter housing. The pellets may be bonded together to form an integral porous filter element having spaces defined between the pellets thereof. The pellets are made of a mixture including a polymeric binder and the chemically active conditioning agent, in a defined weight ratio and in a narrow range of particle sizes. The chemically active filter element reacts with acids present in the oil to form a product which may be filtered out of the oil. The pellets are made either by a hot extrusion process or by a solvent process.

Staged oil filter incorporating pelletized basic conditioner

A unique filtration device ( ) which removes metal ions from a contaminated aqueous stream through the use of partially hollow wicking fibers ( ) impregnated with a selected liquid ( ) which can capture the metal ions in the aqueous stream. The wicking fibers ( ) are formed into a filter element ( ) which extends from a chamber ( ) through which the aqueous stream is directed into a chamber ( ) wherein the unwanted metal ions are removed from the extracting liquid ( ). The wicking fibers ( ) include internal longitudinal cavities ( ) each with a relatively small longitudinal extending opening ( ). The wicking fibers ( ) are filled with the selected liquid extraction ( ) which remains within the fiber through capillary action by which capillary action the individual wicking fibers ( ) rapidly draw the selected liquid,( ) with which they comes into contact, through the internal cavities ( ). The liquid extrant ( ) remains within the wicking fiber cavities ( ) and generally does not enter the space between the wicking fibers ( ) yet through the longitudinal openings ( ) the liquid ( ) is in full communication with the metals contaminated aqueous stream flowing through the filter ( ) and past the individual fibers ( ).

Fibrous system for continuously capturing metals from an aqueous stream

A battery separator, for placement between conductive plates within a battery, includes a non-woven fiber mat made up of one or more nonwoven fibers, which have a specific cross-sectional shape and exhibit a microcapillary action. The fibers are preferred to be made of a thermoplastic selected from the group consisting of polyolefins, fluoropolymers, polyimides, polysulfones, polyesters, polyamides, and mixtures thereof Each of the fibers includes an outer surface, a hollow internal cavity, and an extended slot. The hollow internal cavity communicates with the outer surface by way of the extended slot. Capillary forces within the fibers are greater than those on the fiber surface, such that a liquid electrolyte readily moves through the interior of the fiber via a wicking action. As a result, the battery separator tends to direct fluid to adjacent battery plates even when an electrolyte level, within the battery, drops below the tops of the plates.

Microcapillary battery separator including hollow fibers, and storage battery incorporating same

An unique filtration device ( ) which removes acidic contaminants such as H2S and SO2 from a fluid stream through the use of partially hollow wicking fibers ( ) impregnated with an effective amount of alkaline-generating chemical compounds, preferably also containing an effective amount of a compound with elements from Group II and Group 6-12 in &plus;2 oxidation state, and most preferably also containing an effective amount of solid fine particles ( ). A nonwoven filter mat ( ) is formed from a plurality of the elongated fibers ( ) each having at least one internal channel ( ) connected to the fiber outer surface via an elongated opening ( ). The fluid stream containing the acidic gas phase contaminants is directed over the nonwoven filter mat ( ) whereby said plurality of small solid particles ( ) and reservoir of active chemical reagents disposed in the open channels ( ) communicate through the elongated opening ( ) with the fluid flow path and absorbs the acidic gas phase contaminants.

High efficient acid-gas-removing wicking fiber filters

A fluid filter increases the useful life of the filtered fluid by removing contaminants therefrom, and may optionally provide for in-line delivery of additives to the filtered fluid. The filter may be an oil filter, a fuel filter, or other fluid filter. The fluid filter includes a casing which defines a hollow space therein, a mechanically active filter element within that space, and a chemically active filter element also retained within the hollow space proximate the mechanically active filter element. The chemically active filter element includes a nonwoven web made up of a plurality of fibers. Each fiber has a longitudinally extending internal cavity formed therein, and a corresponding longitudinally extending slot opening from that internal cavity to the outer surface of the fiber. Preferably each fiber as multiple lobes extending radially outwardly from a central stem, and each lobe cooperates with an adjacent lobe to define a longitudinally extending internal cavity and a corresponding slot therebetween. In order to remove contaminants or to supply additives to lubricating oil, the internal cavities, of each of the chemically active filter fibers, are supplied with a chemical reagent therein.

Multi-stage fluid filter, and methods of making and using same

A filter for coalescing water and removing odor from air includes a water coalescing layer made of a synthetic fiber and an odor removal layer including an adsorbent material that operatively interfaces the coalescing layer. The coalescing and removal layers are shaped to receive and expel the air. Both layers can be supported by a frame and/or an outer support layer of polyester material.

Combined water coalescer odor removal filter for use in water separation systems

The internal channels (22) of wicking fibers (20) are filled with a selected liquid (18) form of a prepolymerized polymer or monomers and related reagents and then the polymerization reaction is carried out under suitable conditions to form a fiber with desired properties. Fibers with the properties of the formed polymeric products are conveniently obtained thereafter. This provides a convenient way to obtain engineered fibers by directly polymerizing the monomers in the wicking fiber (20) channels (22). The wicking fibers (20) include internal longitudinal cavities or channels (22) each with a relatively small longitudinal extending opening (24). The wicking fibers (20) are filled with the selected liquid through capillary action by which the individual wicking fibers (20) rapidly draw the selected liquid, with which they comes into contact, through the internal cavities (22). The selected liquid remains within the wicking fiber cavities (22) and generally does not enter the space between the wicking fibers yet through the longitudinal openings (24) the liquid is in full communication with the environment surrounding the wicking fiber (20). The formed solid polymer is retained in the channels (22) of the wicking fiber (20).

Production of engineering fibers by formation of polymers within the

A nonwoven filter media or mat (10) formed from a plurality of elongated generally hollow fibers (20) each having an internal cavity (22) which has an opening (24), smaller than the cavity width, to the fiber (20) surface and each retaining within the internal cavity (22) an electrically conductive material. The electrically conductive material can be a large number of relatively small conductive solid particles (18). The small solid particles (18), which can be graphite are permanently entrapped within the longitudinal cavities (22) of the fibers (20) without the use of an adhesive. The electrically conductive material can also be a selected liquid. In the case of a liquid, the wicking fibers (20) are filled with the selected conductive liquid through capillary action by which the individual wicking fibers (20) rapidly draw the selected electrically conductive liquid, with which they come into contact, through the internal cavities (22). The electrically conductive material, either solid particles or a liquid, remains within the wicking fiber cavities (22) and generally does not enter the space between the wicking fibers yet through the longitudinal openings (24).

Electrically conductive shaped fibers

A nonwoven filter media or mat (1) formed from a plurality of elongated generally hollow fibers (20) each having an internal cavity (22) which has an opening (24), smaller than the cavity width, to the fiber (20) surface and each retaining within its internal cavity (22) an electrically chargeable powder particle material. The electrically chargeable material can be a pure electrically chargeable dielectric powder material or a mixture of oppositely chargeable dielectric powder particles (18). The small solid particles (18), which can be PTFE, CTFE, halogenated polymers or any other electrically chargeable dielectric powder particles, are permanently entrapped within the longitudinal cavities (22) of the fibers (20) without the use of an adhesive. The electrically charged material remains within the wicking fiber cavities (22) and generally does not enter the space between the wicking fibers yet through the longitudinal openings (24) the electrically charged material is in full communication with the fluid stream flowing past the fibers (20).

Electrically charged filtration media

A unique filtration device (10) which continuously removes gas phase contaminants from an air stream through the use of partially hollow wicking fibers (20) impregnated with a fine solid carbon powder (18) or zeolites and formed into a fiber filter (12) with a selected chemisorptive liquid applied to one side of the fiber filter (12) and large carbon particles (19) applied to the other side of the fiber filter (12). The air stream to be cleaned is directed through filter element (12) which can capture the gas phase contaminants. The wicking fibers (20) include internal longitudinal cavities (22) filled with the fine carbon powder (18) and each having a relatively small longitudinal extending opening (24). The wicking fibers (20), to a shallow depth on one side of filter (12), are filled with the selected contaminant removing chemisorptive liquid through capillary action by which the individual wicking fibers (20) rapidly draw the selected chemisorptive liquid, with which they come into contact, through the internal cavities (22). The chemisorptive liquid and fine carbon powder (18) or zeolite powder remain within the wicking fiber cavities (22) and generally do not enter the space between the wicking fibers yet through the longitudinal openings (24) the fine carbon particles (18) and the chemisorptive liquid are in full fluid communication with the air stream flowing past the fibers (20).

Multicomponent depth odor control filter and method of manufacture

A unique filtration device (10) which continuously removes gas phase contaminants from an air stream through the use of partially hollow wicking fibers (20) impregnated with a fine solid powder and a selected chemisorptive liquid (18) which can capture the gas phase contaminants. The wicking fibers (20) are generally disposed to extend in the same direction and are formed into a filter element (12). The air stream to be cleaned is directed through filter element (12). The wicking fibers (20) include internal longitudinal cavities (22) filled with a fine powder and each having a relatively small longitudinal extending opening (24). The wicking fibers (20) are filled with the selected contaminant removing chemisorptive liquid through capillary action by which the individual wicking fibers (20) rapidly draw the selected chemisorptive liquid, with which they come into contact, through the internal cavities (22). The chemisorptive liquid and fine powder remains within the wicking fiber cavities (22) and generally does not enter the space between the wicking fibers yet through the longitudinal openings (24) the chemisorptive liquid is in full fluid communication with the air stream flowing past the fibers (20).

Wicking fiber with solid particulates for a high surface area odor

A unique odor filtration device (10) which continuously removes odor causing gas phase contaminants from an air stream through the use of partially hollow wicking fibers (20) impregnated with a selected liquid (18) which can capture odor causing gas phase contaminants. The odor removing liquid (18) is a chemical composition including sodium permanganate in combination with either sodium carbonate or sodium phosphate. The odor absorbing liquid (18) can include specialized additives such as transition metal salts and other agents such as sodium iodide for additional and broader odor removal coverage. The wicking fibers (20) are formed into a filter element (12) which extends from a chamber (16) through which the air stream to be cleaned is directed into a stripping chamber (19). The odor causing contaminants are conveyed to from chamber (16) to chamber (19) by a concentration factor induced molecular migration. The wicking fibers (20) include internal longitudinal cavities (22) each with a relatively small longitudinal extending opening (24). The wicking fibers (20) are filled with the selected contaminant removing liquid through capillary action by which the individual wicking fibers (20) rapidly draw the selected liquid, with which they come into contact, through the internal cavities (22). The absorption liquid (18) remains within the wicking fiber cavities (22) and generally does not enter the space between the wicking fibers yet through the longitudinal openings (24) the liquid is in full communication with the air stream flowing past the fibers (20).

Chemical reagent package and method of operation effective at removing a

An air filtration or fluid treatment system includes a nonwoven filter media or mat (10) formed from a plurality of elongated generally hollow fibers (20) each having an internal cavity (22) which has an opening (24) to the fiber surface and each retaining within the internal cavity a large number of relatively small solid particles (18) which interact with the air or other fluid stream to be treated. The solid adsorbent particles (18), such as activated carbon, are permanently entrapped within the longitudinal cavities (22) of the fibers (20) without the use of an adhesive or without being embedded onto or within the polymer fiber.

Elongate fiber filter mechanically securing solid adsorbent particles

A nonwoven filter media or mat (10) formed from a plurality of elongated generally hollow fibers (20) each having an internal cavity (22) which has an opening (24), smaller than the cavity width, to the fiber (20) surface and each retaining within the internal cavity (22) a large number of relatively small solid particles (18). The small solid particles (18), which can be an adsorbent such as activated carbon, are permanently entrapped within the longitudinal cavities (22) of the fibers (20) without the use of an adhesive.

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Midilothian, VA, United States of America

Lixin L Xue