Preventing corrosion

Patents Grantslast 30 patents

  • Information Patent Grant

    Multiple stage vacuum pump

    • Patent number 11,821,427
    • Issue date Nov 21, 2023
    • Edwards Limited
    • Alan Ernest Kinnaird Holbrook
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Compressor assembly, compressor, and method of manufacturing compre...

    • Patent number 11,525,445
    • Issue date Dec 13, 2022
    • Daikin Industries, Ltd.
    • Naoki Shimozono
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Compressor for refrigerating machine

    • Patent number 11,421,686
    • Issue date Aug 23, 2022
    • Daikin Industries, Ltd.
    • Naoki Shimozono
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Water lubrication twin-screw air compressing system

    • Patent number 11,421,687
    • Issue date Aug 23, 2022
    • Fu Sheng Industrial Co., Ltd.
    • Min-Jen Tsai
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Oil separator and relief valve of a screw compressor for a utility...

    • Patent number 11,286,938
    • Issue date Mar 29, 2022
    • KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
    • Gilles Hebrard
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Compression device

    • Patent number 10,883,504
    • Issue date Jan 5, 2021
    • Kobe Steel, Ltd.
    • Masahiro Tajima
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Liquid ring pump

    • Patent number 10,655,626
    • Issue date May 19, 2020
    • Edwards Limited
    • Gary Peter Knight
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Refrigerant compressor with supporting bearing insulation

    • Patent number 10,584,744
    • Issue date Mar 10, 2020
    • HITACHI-JOHNSON CONTROLS AIR CONDITIONING, INC.
    • Yuko Kozuma
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Compressor, oil-free screw compressor, and method of manufacturing...

    • Patent number 10,316,841
    • Issue date Jun 11, 2019
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Yukiko Ikeda
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Oil-free screw compressor coated with a base resin, a solid lubrica...

    • Patent number 9,944,880
    • Issue date Apr 17, 2018
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Yukiko Ikeda
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Pump with corrosion resistant shaft and rotor surfaces

    • Patent number 9,695,824
    • Issue date Jul 4, 2017
    • Emmanuel Uzoma Okoroafor
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Vacuum pump motor and vacuum pump having balance rings

    • Patent number 9,291,155
    • Issue date Mar 22, 2016
    • Ebara Corporation
    • Yoshinori Ojima
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Pump enveloped with thermally conductive material

    • Patent number 9,080,571
    • Issue date Jul 14, 2015
    • Edwards Limited
    • Stephen Edward Downham
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Fretting-corrosion-prevention oscillating vane type pump actuator

    • Patent number 8,899,948
    • Issue date Dec 2, 2014
    • Korea Ocean Research and Development Institute
    • Seung-Ho Shin
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Screw compressor

    • Patent number 8,801,412
    • Issue date Aug 12, 2014
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Yukiko Ikeda
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Liquid ring pump with liner

    • Patent number 8,740,575
    • Issue date Jun 3, 2014
    • Gardner Denver Nash, LLC
    • Douglas Eric Bissell
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Motor driven compressor

    • Patent number 8,622,721
    • Issue date Jan 7, 2014
    • Kabushiki Kaisha Toyota Jidoshokki
    • Hiroshi Fukasaku
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Air compressor of water injection type

    • Patent number 8,616,856
    • Issue date Dec 31, 2013
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Takehiro Matsuzaka
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Scroll expansion machine with air flow passage around outer periphe...

    • Patent number 8,562,317
    • Issue date Oct 22, 2013
    • Anest Iwata Corporation
    • Tamotsu Fujioka
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

  • Information Patent Application

    MULTIPLE STAGE VACUUM PUMP

    • Publication number 20230076739
    • Publication date Mar 9, 2023
    • Edwards Limited
    • Alan Ernest Kinnaird Holbrook
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    COMPRESSOR FOR REFRIGERATING MACHINE

    • Publication number 20210332818
    • Publication date Oct 28, 2021
    • DAIKIN INDUSTRIES, LTD.
    • Naoki SHIMOZONO
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    COMPRESSOR ASSEMBLY, COMPRESSOR, AND METHOD OF MANUFACTURING COMPRE...

    • Publication number 20210285449
    • Publication date Sep 16, 2021
    • DAIKIN INDUSTRIES, LTD.
    • Naoki SHIMOZONO
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Water Pump For Marine Engine Having Removable Cap Assembly

    • Publication number 20200386225
    • Publication date Dec 10, 2020
    • Indmar Products Company Inc.
    • Timothy L. Collins
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    WATER LUBRICATION TWIN-SCREW AIR COMPRESSING SYSTEM

    • Publication number 20200141409
    • Publication date May 7, 2020
    • Fu Sheng Industrial Co.,Ltd
    • MIN-JEN TSAI
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    STATOR, ROTARY SHAFT, DRY VACUUM PUMP AND ASSOCIATED MANUFACTURING...

    • Publication number 20190277286
    • Publication date Sep 12, 2019
    • PFEIFFER VACUUM
    • Eric MANDALLAZ
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Application

    SCREW COMPRESSOR

    • Publication number 20140322058
    • Publication date Oct 30, 2014
    • Yukiko IKEDA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VACUUM PUMP MOTOR AND VACUUM PUMP INCLUDING SAME

    • Publication number 20140056733
    • Publication date Feb 27, 2014
    • Yoshinori OJIMA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Pump

    • Publication number 20130294957
    • Publication date Nov 7, 2013
    • Edwards Limited
    • Stephen Edward Downham
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    FRETTING-CORROSION-PREVENTION OSCILLATING VANE TYPE PUMP ACTUATOR

    • Publication number 20120237384
    • Publication date Sep 20, 2012
    • KOREA OCEAN RESEARCH AND DEVELOPMENT INSTITUTE
    • Seung-Ho Shin
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    PUMPS

    • Publication number 20120171033
    • Publication date Jul 5, 2012
    • EDWARDS LIMITED
    • Emmanuel Uzoma Okoroafor
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SCREW COMPRESSOR

    • Publication number 20120100029
    • Publication date Apr 26, 2012
    • Yukiko IKEDA
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    SCROLL EXPANSION MACHINE

    • Publication number 20110300012
    • Publication date Dec 8, 2011
    • ANEST IWATA CORPORATION
    • Tamotsu Fujioka
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    LIQUID RING PUMP WITH LINER

    • Publication number 20110286840
    • Publication date Nov 24, 2011
    • Douglas Eric Bissell
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    MOTOR-DRIVEN COMPRESSOR

    • Publication number 20110236234
    • Publication date Sep 29, 2011
    • KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    • Hiroshi FUKASAKU
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Air Compressor of Water Injection Type

    • Publication number 20100233004
    • Publication date Sep 16, 2010
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Takehiro MATSUZAKA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Rotary vane air pump

    • Publication number 20070041860
    • Publication date Feb 22, 2007
    • Tatsuya Nakamoto
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Pump

    • Publication number 20060127245
    • Publication date Jun 15, 2006
    • Tadahiro OHMI
    • Tadahiro Ohmi
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...