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Particulate filter materials with a lower density than the liquid mixture to be filtered

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  • B01D2201/14
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BPERFORMING OPERATIONS TRANSPORTING B01Physical, chemical processing B01DSEPARATION B01D2201/00Details relating to filtering apparatus

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B01D2201/14Particulate filter materials with a lower density than the liquid mixture to be filtered
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Patents Grantslast 30 patents

  • Information Patent Grant

    Apparatus and method for rejuvenation and recovery of filtration media
    • Patent number 11,325,058
    • Issue date May 10, 2022
    • The United States of America, as represented by the Secretary of Agriculture
    • Clinton D. Church
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Waste-movement system for aquarium
    • Patent number 10,292,373
    • Issue date May 21, 2019
    • Anthony Bugeja
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Separation of clean water from effluent streams
    • Patent number 9,956,563
    • Issue date May 1, 2018
    • Aicardo Roa-Espinosa
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Filter system and a cartridge containing a cellular granular material
    • Patent number 5,980,761
    • Issue date Nov 9, 1999
    • Chantal Boissie
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Method and apparatus for water treatment
    • Patent number 5,766,488
    • Issue date Jun 16, 1998
    • United States Filter Corporation
    • Stephen A. Uban
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Method for backwashing water processing systems
    • Patent number 5,750,041
    • Issue date May 12, 1998
    • Ken Hirane
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Sewage treatment system
    • Patent number 5,578,200
    • Issue date Nov 26, 1996
    • Hitachi Plant Engineering and Construction Co., Ltd.
    • Yasushi Funakoshi
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Sewage treatment system with air jetting means
    • Patent number 5,558,763
    • Issue date Sep 24, 1996
    • Hitachi Plant Engineering and Construction Co., Ltd.
    • Yasushi Funakoshi
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Method and apparatus for water treatment
    • Patent number 5,514,284
    • Issue date May 7, 1996
    • Wheelabrator Engineered Systems Inc.
    • Stephen A. Uban
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Filtering apparatus
    • Patent number 5,368,730
    • Issue date Nov 29, 1994
    • Degremont S.A.
    • Jean-Louis Vital
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Solid-liquid separator and process for washing the same
    • Patent number 5,145,589
    • Issue date Sep 8, 1992
    • Nishihara Environmental Sanitation Research Corporation Limited
    • Yasuhiro Okubo
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filtration system
    • Patent number 5,122,287
    • Issue date Jun 16, 1992
    • Andrew K. Hsiung
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filter system
    • Patent number 5,009,776
    • Issue date Apr 23, 1991
    • Control Fluidics, Inc.
    • James V. Banks
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Single chamber filter vessel
    • Patent number 4,885,083
    • Issue date Dec 5, 1989
    • James V. Banks
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Method for enhancing the separation capacity of a multi-bed filtrat...
    • Patent number 4,793,934
    • Issue date Dec 27, 1988
    • Signal Environmental Systems, Inc.
    • Robert E. Thompson
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Lightweight media depth filter
    • Patent number 4,747,945
    • Issue date May 31, 1988
    • Culligan International Company
    • Edward G. Kreusch
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Method and apparatus for separating suspended solids from liquids
    • Patent number 4,743,382
    • Issue date May 10, 1988
    • The State of Oregon Acting by and through the State Board of Higher Education...
    • Kenneth J. Williamson
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Buoyant filter media
    • Patent number 4,725,367
    • Issue date Feb 16, 1988
    • Ontario Research Foundation
    • Matthew P. McKim
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Process for concentrating a suspension of microscopic particles
    • Patent number 4,719,020
    • Issue date Jan 12, 1988
    • Mornex Limited
    • Samuel Elmaleh
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Water filtration apparatus having upflow buoyant media filter and d...
    • Patent number 4,608,181
    • Issue date Aug 26, 1986
    • Neptune Microfloc, Inc.
    • Andrew K. Hsiung
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Apparatus for separating solid particles from a liquid
    • Patent number 4,591,437
    • Issue date May 27, 1986
    • Leif Ernryd AB
    • Leif W. Ernryd
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Filtration device and method
    • Patent number 4,582,609
    • Issue date Apr 15, 1986
    • Minnesota Mining and Manufacturing Company
    • John S. Hunter
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Water filtration process and apparatus having upflow filter with bu...
    • Patent number 4,547,286
    • Issue date Oct 15, 1985
    • Neptune Microfloc, Inc.
    • Andrew K. Hsiung
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filter
    • Patent number 4,454,040
    • Issue date Jun 12, 1984
    • Robert L. Roberts
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Buoyant media filter
    • Patent number 4,446,027
    • Issue date May 1, 1984
    • Environmental Elements Corp.
    • Kathleen W. Simmers
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filter module
    • Patent number 4,420,403
    • Issue date Dec 13, 1983
    • Control Fluidics, Inc.
    • Wesley M. Tufts
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Process and apparatus for cleaning contaminated water
    • Patent number 4,290,894
    • Issue date Sep 22, 1981
    • Egyesult Muszaki Tomito es Gepszakmai Ipari Szovetkezet
    • Gabor Torok
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Apparatus for separating solid and liquid
    • Patent number 4,246,118
    • Issue date Jan 20, 1981
    • Nippon Paint Co., Ltd.
    • Masahisa Tada
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Liquid sand filter
    • Patent number 4,246,119
    • Issue date Jan 20, 1981
    • Robert L. Alldredge
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Process and device for the filtration of liquids polluted by suspen...
    • Patent number 4,052,300
    • Issue date Oct 4, 1977
    • Italba, S.p.A.
    • Franco Achille Mosso
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents