# US 11,992,793 B2 · Devices, systems and methods for a filter > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,992,793 B2 - Document ID: US11992793B2 - Status: Granted - Kind: B2 - Application number: 17/418,986 - Filed: 2019-12-24 - Published: 2022-04-07 - Granted: 2024-05-28 - Earliest claimed: 2018-12-28 - Assignees: Mott Corporation - Applicants: Mott Corporation - Inventors: Jonathan Bolluyt; Wayne White; Allen Beaune; Aravind Mohanram; John E. Rosenberger - Web page: https://patentgrep.com/patent/US11992793B2 ## CPC - B01D 39/2041: {the material being filamentary or fibrous} - B01D 39/2044: {sintered or bonded by inorganic agents} - B01D 29/111: {Making filtering elements} - B01D 29/23: arranged for outward flow filtration - B01D 29/33: arranged for inward flow filtration - B01D 29/54: arranged concentrically or coaxially - B01D 46/2407: {Filter candles} - B21D 51/16: characterised by the use of the objects (making heat exchangers B21D53/02) - B23K 9/02: Seam welding; Backing means; Inserts - B23K 15/0053: {Seam welding} - B23K 26/24: Seam welding - B01D 2201/0415: Details of supporting structures - B01D 2239/065: More than one layer present in the filtering material - B23K 31/027: {Making tubes by soldering or welding} - B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28) - B21D: WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL (working or processing of wire B21F) - B23K: SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM ## Abstract The present disclosure generally relates to the field of filtration. In particular, the present disclosure relates to filtration devices, systems and methods for high flowrates and low pressure differentials through porous bodies of metal fiber media. ## Claims ### Claim 1 A filter comprising: a porous elongate body comprising metal fiber media, having a first end that is open, a second end that is closed, and a porous sidewall configured to filter fluids that flow through it; a duct extending from the first end to the second end; wherein the porous elongate body defines a flow path from the first end, into the duct, and across the porous sidewall; and wherein the porous elongate body comprises a rolled sheet of metal fiber media overlapping itself, a first seam weld extending lengthwise along the rolled sheet of metal fiber media at the overlap, and a second weld extending lengthwise along the porous elongate body, wherein the second weld is substantially offset about 180 degrees from the first seam weld about a longitudinal axis extending along the porous elongate body. ### Claim 2 (depends on 1) The filter of claim 1, further comprising a solid plate at the second end. ### Claim 3 (depends on 2) The filter of claim 2, further comprising a ferrule connected about the first end of the porous elongate body. ### Claim 4 (depends on 1) The filter of claim 1, wherein a flow of a fluid through the flow path across the porous sidewall comprises a pressure differential of less than about 10 pounds per square inch. ### Claim 5 A filter system comprising: a plurality of porous elongate bodies each comprising metal fiber media, each having a first end that is open, a second end that is closed, a duct extending from the first end to the second end, and wherein the each porous elongate body defines a flow path from the first end, into the duct, and across a porous sidewall, and wherein each porous elongate body comprises a rolled sheet of metal fiber media forming the porous sidewall overlapping itself, a first seam weld extending lengthwise along the rolled sheet of metal fiber media at the overlap, and a second weld extending lengthwise along the porous elongate body, wherein the second weld is substantially offset about 180 degrees from the first seam weld about a longitudinal axis extending along the porous elongate body; and a housing having an inlet and an outlet, disposed about the plurality of porous elongate bodies; and wherein the plurality of porous elongate bodies are disposed within the housing in parallel such that each first end is oriented toward the inlet and each second end is oriented toward the outlet. ### Claim 6 (depends on 5) The filter system of claim 5, wherein each of the plurality of porous elongate bodies further comprises a solid plate at the second end. ### Claim 7 (depends on 6) The filter system off claim 6, wherein each of the solid plates are connected to an outlet brace of the housing. ### Claim 8 (depends on 5) The filter system of claim 5, wherein each of the plurality of porous elongate bodies further comprises a ferrule connected about the first end. ### Claim 9 (depends on 8) The filter system of claim 8, wherein each of the ferrules are connected to an inlet brace of the housing. ### Claim 10 (depends on 5) The filter system of claim 5, wherein a flow of a fluid through the filter system from the inlet through the outlet comprises a flowrate greater than 500 standard liters per minute and a pressure differential of less than about 10 pounds per square inch. ### Claim 11 A method of manufacturing a filter comprising: rolling a first sheet into a first porous elongate body such that there is a portion of the sheet overlapping itself and wherein the portion is about an eighth of an inch in the circumferential direction of the rolled sheet; seam welding the portion of the first porous elongate body to provide a first seam weld; and welding along a length of the first porous elongate body along a longitudinal axis of the porous elongate body at a location substantially 180 degrees offset from the first seam weld, to form a second weld. ### Claim 12 (depends on 11) The method of claim 11, further comprising seam welding a connector about a first end of the first porous elongate body. ### Claim 13 (depends on 11) The method of claim 11, further comprising seam welding a solid plate at a second end of the first porous elongate body. ### Claim 14 (depends on 11) The method of claim 11, further comprising disposing a second sheet about the first porous elongate body.