# US 11,998,865 B1 · Filter cleaning system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,998,865 B1 - Document ID: US11998865B1 - Status: Granted - Kind: B1 - Application number: 18/387,637 - Filed: 2023-11-07 - Granted: 2024-06-04 - Earliest claimed: 2023-11-07 - Assignees: Cyclone Filter Tools LLC - Applicants: Cyclone Filter Tools LLC - Inventors: Jordan Thiessen; Jeff Thiessen - Web page: https://patentgrep.com/patent/US11998865B1 ## CPC - B01D 41/04: of rigid self-supporting filtering material - B08B 3/024: {Cleaning by means of spray elements moving over the surface to be cleaned} - B01D 2201/0415: Details of supporting structures - 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) - B08B: CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL ## Abstract A filter cleaning system including filter cleaning apparatus including a tubular mast rotatingly disposed on a support rod. One or more filter retainers adapted to retain a filter can be disposed on the tubular mast. A filter disposed on the tubular mast can rotate about the support rod. A fluid stream can be directed on the filter to clean the filter rotating about the support rod. ## Claims ### Claim 1 A filter cleaning apparatus, comprising: a base; a rod connected to said base; a tubular mast having a mast closed end, said rod inserted into said tubular mast contacts said mast closed end, said tubular mast having said mast closed end contacting said rod adapted to rotate about said rod; and a filter retainer positionable on said tubular mast. ### Claim 2 (depends on 1) The apparatus of claim 1, further comprising a projection extending from said mast closed end, said projection configured to contact said rod inserted into said tubular mast. ### Claim 3 (depends on 2) The apparatus of claim 2, wherein said projection tapers approaching a projection end, said projection end contacts said rod inserted into said tubular mast. ### Claim 4 (depends on 3) The apparatus of claim 3, wherein said projection tapers to a point, said point contacts said rod inserted into said tubular mast. ### Claim 5 (depends on 4) The apparatus of claim 4, wherein said rod terminates in a rod end having a central indentation, said rod inserted into said tubular mast contacts said central indention with said projection extending from said closed end of said tubular mast. ### Claim 6 (depends on 1) The apparatus of claim 1, wherein said closed end of said tubular mast retains a bearing, said rod inserted into said tubular mast contacts said bearing. ### Claim 7 (depends on 6) The apparatus of claim 6, wherein said bearing includes rolling elements between a pair of races. ### Claim 8 (depends on 7) The apparatus of claim 7, wherein said bearing comprises a thrust bearing or a roller bearing. ### Claim 9 (depends on 1) The apparatus of claim 1, wherein said filter retainer configured to support a filter on said tubular mast. ### Claim 10 (depends on 9) The apparatus of claim 9, wherein said filter retainer adapted to insert in a filter end opening of said filter to support said filter on said tubular mast. ### Claim 11 (depends on 10) The apparatus of claim 10, wherein said filter retainer tapers between a filter retainer first end and a filter retainer second end. ### Claim 12 (depends on 10) The apparatus of claim 10, where said filter retainer comprises a truncated cone. ### Claim 13 (depends on 10) The apparatus of claim 10, wherein said filter retainer comprises a stepped annular conical reduction between a filter retainer first end and a filter retainer second end. ### Claim 14 (depends on 1) The apparatus of claim 1, wherein said filter retainer comprises a first filter retainer positioned on said tubular mast in adjustable fixed spatial relation to a second filter retainer positioned on said tubular mast. ### Claim 15 (depends on 14) The apparatus of claim 14, wherein said first filter retainer and said second filter retainer configured to insert in opposed filter end openings of a filter to support said filter on said tubular mast. ### Claim 16 (depends on 14) The apparatus of claim 14, wherein at least one of said first filter retainer or said second filter retainer comprising a truncated cone. ### Claim 17 (depends on 14) The apparatus of claim 14, wherein at least one of said first filter retainer or said second filter retainer comprising a stepped annular conical reduction. ### Claim 18 (depends on 14) The apparatus of claim 14, wherein at least one of said first filter retainer or said second filter retainer comprising a filter retainer collar including an annular retainer collar circumferentially disposed about a tubular retainer body configured to slidably engage said tubular mast. ### Claim 19 (depends on 18) The apparatus of claim 18, wherein said filter retainer collar adapted to engage one of said opposed filter end openings of said filter. ### Claim 20 (depends on 14) The apparatus of claim 14, wherein said first filter retainer comprises: a truncated cone disposed between a first filter retainer first end and a first filter retainer second end, or a stepped annular conical reduction between said first filter retainer first end and said first filter retainer second end, and wherein said second filter retainer comprises: a truncated cone between a second filter retainer first end and a second filter retainer second end, or a stepped annular conical reduction between said second filter retainer first end and said second filter retainer second end. ### Claim 21 (depends on 14) The apparatus of claim 14, wherein said first filter retainer comprise: a truncated cone disposed between a first filter retainer first end and a first filter retainer second end, or a stepped annular conical reduction between said first filter retainer first end and said first filter retainer second end, and wherein said second filter retainer comprises a filter retainer collar including an annular retainer collar circumferentially disposed about a tubular retainer body configured to slidably engage said tubular mast. ### Claim 22 (depends on 14) The apparatus of claim 14, wherein said first filter retainer or said second filter retainer slidably adjusted on said tubular mast to support a filter on said tubular mast between said first filter retainer and said second filter retainer; wherein said first filter retainer has a first filter retainer first end and a first filter retainer second end. ### Claim 23 (depends on 22) The apparatus of claim 22, further comprising a plurality of flexibly resilient leaves radially inwardly extending from said first filter retainer second end, said plurality of flexibly resilient leaves adapted to engage said tubular mast. ### Claim 24 (depends on 22) The apparatus of claim 22, further comprising an annular disk disposed between an external annular surface configured to secure to said first filter retainer first end and an internal annular surface configured to slidably engage said tubular mast, or a mooring hub having a tubular body positioned along said tubular mast and an annular shoulder configured to support said annular disk. ### Claim 25 (depends on 1) The apparatus of claim 1, further comprising a mast axial extension configured to connect to said mast closed end to increase a length of said tubular mast. ### Claim 26 (depends on 25) The apparatus of claim 25, wherein said mast axial extension coupled to said tubular mast rotates about said rod. ### Claim 27 (depends on 14) The apparatus of claim 14, further comprising a retainer radial extension disposed over said first filter retainer or said second filter retainer to increase a conical radius or a stepped annular conical radius of said first filter retainer. ### Claim 28 (depends on 27) The apparatus of claim 27, wherein said retainer radial extension includes a passthrough which receives said first filter retainer first end or said second filter retainer first end. ### Claim 29 (depends on 28) The apparatus of claim 28, wherein said retainer radial extension configured as truncated solid, wherein said conical or stepped annular conical radius includes a pair of flat generally parallel sides.