having elements opening under air pressure

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  • B01F3/04255
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ventilation element

    • Patent number 11,235,292
    • Issue date Feb 1, 2022
    • AQSEPTENCE GROUP GMBH
    • Jiansan Zhang
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Microbubble generation device and equipment

    • Patent number 11,179,683
    • Issue date Nov 23, 2021
    • PetroChina Company Limited
    • Xinglong Chen
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Dual-action water aerator

    • Patent number 11,097,229
    • Issue date Aug 24, 2021
    • TRIPLEPOINT ENVIRONMENTAL LLC
    • Braden J. Galbreath-O'Leary
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Process for the purification of a cracking gas stream in an oil scr...

    • Patent number 10,160,702
    • Issue date Dec 25, 2018
    • Linde Aktiengesellschaft
    • Gerhard Alzner
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Device for producing microbubble water by using ultrasonic vibrator...

    • Patent number 9,908,089
    • Issue date Mar 6, 2018
    • Chung-Ang University Industry - Academy Cooperation Foundation
    • Jong Min Kim
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Aeration device, a use thereof, and water purification installation...

    • Patent number 9,844,760
    • Issue date Dec 19, 2017
    • Atlas Copco Airpower, naamloze vennootschap
    • Erik Paul Fabry
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Three-dimensional flow-optimized control slider system with linear...

    • Patent number 9,644,751
    • Issue date May 9, 2017
    • Binder GmbH
    • Robert Binder
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Air-powered water circulation systems for ponds, lakes, municipal w...

    • Patent number 9,586,184
    • Issue date Mar 7, 2017
    • Medora Environmental, Inc.
    • Joel J. Bleth
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Device for gassing liquids

    • Patent number 9,556,047
    • Issue date Jan 31, 2017
    • Invent Umwelt-und Verfahrenstechnik AG
    • Marcus Hoefken
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Pulse aeration for immersed membranes

    • Patent number 9,463,419
    • Issue date Oct 11, 2016
    • General Electric Company
    • Joseph Breitner
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Gas injection device having check valve

    • Patent number 9,205,386
    • Issue date Dec 8, 2015
    • Chao-Chung Wu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Exhaust air transfer device for open system underwater diving

    • Patent number 8,418,689
    • Issue date Apr 16, 2013
    • Davenport Innovations, Inc.
    • Steven Roy Davenport
    • B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
  • Information Patent Grant

    Aerating unit

    • Patent number 6,345,810
    • Issue date Feb 12, 2002
    • Shen-Jan Hung
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Air diffuser valve

    • Patent number 6,016,839
    • Issue date Jan 25, 2000
    • Red Valve Co., Inc.
    • Spiros G. Raftis
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Sparger system including jet stream aerator

    • Patent number 5,676,823
    • Issue date Oct 14, 1997
    • Baker Hughes Incorporated
    • Jeffrey D. McKay
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Bubbling system

    • Patent number 5,356,533
    • Issue date Oct 18, 1994
    • F. Tecs Co., Ltd.
    • Turuo Nakagawa
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Device for the dosed diffusion of gases in liquids

    • Patent number 4,518,543
    • Issue date May 21, 1985
    • Grittmann; Gunter
    • Dieter Dorsch
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Leaf spring diffuser with amplitude limit

    • Patent number 4,495,114
    • Issue date Jan 22, 1985
    • Walter C. Strauss
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Valved or progressively opening sparger with rigid upper seat

    • Patent number 4,218,407
    • Issue date Aug 19, 1980
    • Chicago Bridge & Iron Company
    • Louis Robertson
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Bubble-shearing diffuser

    • Patent number 3,954,922
    • Issue date May 4, 1976
    • Peabody Galion Corporation
    • James Donald Walker
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    3790142

    • Patent number 3,790,142
    • Issue date Feb 5, 1974
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    3754740

    • Patent number 3,754,740
    • Issue date Aug 28, 1973
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    3722836

    • Patent number 3,722,836
    • Issue date Mar 27, 1973
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    3662781

    • Patent number 3,662,781
    • Issue date May 16, 1972
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    3651646

    • Patent number 3,651,646
    • Issue date Mar 28, 1972
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    3608834

    • Patent number 3,608,834
    • Issue date Sep 28, 1971
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    3491023

    • Patent number 3,491,023
    • Issue date Jan 20, 1970
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    3351292

    • Patent number 3,351,292
    • Issue date Nov 7, 1967
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    3334819

    • Patent number 3,334,819
    • Issue date Aug 8, 1967
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    3276698

    • Patent number 3,276,698
    • Issue date Oct 4, 1966
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents