TREA

Measures to avoid lubricant contaminating the pumped fluid

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  • CPC
  • F04B39/04
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FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F04Liquid pumps F04BPOSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS F04B39/00Component parts, details, or accessories, of pumps or pumping systems, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00

Current Industry

F04B39/04Measures to avoid lubricant contaminating the pumped fluid
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Composite structures for reciprocating gas compressor systems
    • Patent number 11,879,447
    • Issue date Jan 23, 2024
    • Waukesha Bearings Corporation
    • Jie Zhou
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Compressor
    • Patent number 11,879,465
    • Issue date Jan 23, 2024
    • Fujitsu General Limited
    • Kenshi Ueda
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3D-printed oil separation for reciprocating compressors
    • Patent number 11,859,603
    • Issue date Jan 2, 2024
    • Copeland Industrial LP
    • Steven Fels
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Rod packing
    • Patent number 11,719,344
    • Issue date Aug 8, 2023
    • Compressor Products International, LLC
    • Pascal Mahieux
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Oil separator for a compressor and compressor assembly comprising s...
    • Patent number 11,703,043
    • Issue date Jul 18, 2023
    • ING. ENEA MATTEI S.P.A.
    • Giulio Contaldi
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Bellows pressure relief valve
    • Patent number 11,703,047
    • Issue date Jul 18, 2023
    • Graco Minnesota Inc.
    • Timothy S. Roman
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Oil wiper packing
    • Patent number 11,698,062
    • Issue date Jul 11, 2023
    • Burckhardt Compression AG
    • Norbert Feistel
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Compressor having intermediate passage capable of conveying accumul...
    • Patent number 11,614,087
    • Issue date Mar 28, 2023
    • Gree Green Refrigeration Technology Center Co., Ltd. of Zhuhai
    • Sheng Chen
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Refrigerant compressor with gas equalizer duct
    • Patent number 11,543,160
    • Issue date Jan 3, 2023
    • Bitzer Kuehlmaschinenbau GmbH
    • Jens Mannewitz
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Piston rod sealing system for a reciprocating machine and method fo...
    • Patent number 11,480,168
    • Issue date Oct 25, 2022
    • ATLAS COPCO CREPELLE, S.A.S.
    • Vincent Paul Caloone
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Piston seal structure for injector
    • Patent number 11,434,889
    • Issue date Sep 6, 2022
    • BEIJING BEIFEN-RUILI ANALYTICAL INSTRUMENT (GROUP) CO., LTD.
    • Lu Chen
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Automobile inflatable pump
    • Patent number 11,408,409
    • Issue date Aug 9, 2022
    • GUANGZHOU ANTU ELECTRIC CO., LTD.
    • Xinhua Kuang
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Lubrication system for a piston pump
    • Patent number 11,326,693
    • Issue date May 10, 2022
    • Schlumberger Technology Corporation
    • Michael Raymond Netecke
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rolling diaphragm pump
    • Patent number 11,313,361
    • Issue date Apr 26, 2022
    • Nippon Pillar Packing Co., Ltd.
    • Kazukiyo Teshima
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Compressor and refrigeration cycle apparatus
    • Patent number 11,306,953
    • Issue date Apr 19, 2022
    • Mitsubishi Electric Corporation
    • Takashi Moriyama
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Shaft-cylinder assembly for high temperature operation
    • Patent number 11,255,319
    • Issue date Feb 22, 2022
    • Neo Mechanics Limited
    • Stanley Moon Kai Ko
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Oil separator and compressed air drying system
    • Patent number 11,198,080
    • Issue date Dec 14, 2021
    • Nabtesco Automotive Corporation
    • Takuya Sugio
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Compressor
    • Patent number 11,136,980
    • Issue date Oct 5, 2021
    • Daikin Industries, Ltd.
    • Takashi Shimizu
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Cylinder assemble structure for compact air compressor
    • Patent number 11,067,070
    • Issue date Jul 20, 2021
    • New Motech Co., Ltd.
    • Jeong Cheol Jang
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Oil separator
    • Patent number 11,020,697
    • Issue date Jun 1, 2021
    • Daikin Industries, Ltd.
    • Takashi Inoue
    • B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
  • Information Patent Grant

    Bellows pressure relief valve
    • Patent number 10,982,665
    • Issue date Apr 20, 2021
    • Graco Minnesota Inc.
    • Timothy S. Roman
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Natural gas reciprocating compressor
    • Patent number 10,900,476
    • Issue date Jan 26, 2021
    • Southwest Research Institute
    • Klaus Brun
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Seal assembly for reciprocating compressor
    • Patent number 10,883,483
    • Issue date Jan 5, 2021
    • Air Products and Chemicals, Inc.
    • David Jonathan Chalk
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Annular sealing assembly
    • Patent number 10,876,634
    • Issue date Dec 29, 2020
    • Air Products and Chemicals, Inc.
    • David Jonathan Chalk
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Oil separator and compressed air drying system
    • Patent number 10,843,112
    • Issue date Nov 24, 2020
    • Nabtesco Automotive Corporation
    • Takuya Sugio
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Diaphragm pump with a rail to restrict rotation and a piston cavity...
    • Patent number 10,830,226
    • Issue date Nov 10, 2020
    • Nippon Pillar Packing Co., Ltd.
    • Kazukiyo Teshima
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Oil separator
    • Patent number 10,815,849
    • Issue date Oct 27, 2020
    • Nabtesco Automotive Corporation
    • Takuya Sugio
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Device and method for extending the lifespan of a shaft seal for an...
    • Patent number 10,801,623
    • Issue date Oct 13, 2020
    • Thermo King Corporation
    • Joseph Robert Kaiser
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Small air compressor
    • Patent number 10,781,805
    • Issue date Sep 22, 2020
    • New Motech Co., Ltd.
    • Jong Hyuk Kim
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Oil separator
    • Patent number 10,774,710
    • Issue date Sep 15, 2020
    • Nabtesco Automotive Corporation
    • Takuya Sugio
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...

Patents Applicationslast 30 patents

  • Information Patent Application

    MULTI-PART SEALING ASSEMBLY
    • Publication number 20240102460
    • Publication date Mar 28, 2024
    • GD Energy Products, LLC
    • Vadim Kachkovskiy
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PISTON RING ARRANGEMENT, PISTON COMPRESSOR AND METHOD FOR SEALING A...
    • Publication number 20230184332
    • Publication date Jun 15, 2023
    • Burckhardt Compression AG
    • David FLOOD
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    HIGH PRESSURE SEALS
    • Publication number 20230160474
    • Publication date May 25, 2023
    • QUANTUM SERVO PUMPING TECHNOLOGIES PTY LTD
    • Darren Reukers
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    HERMETIC ELECTRIC COMPRESSOR
    • Publication number 20230121207
    • Publication date Apr 20, 2023
    • Panasonic Intellectual Property Management Co., Ltd.
    • Takuji SASA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PUMPING ASSEMBLY, PISTON PUMP AND ORAL IRRIGATOR
    • Publication number 20230046766
    • Publication date Feb 16, 2023
    • FLY CAT ELECTRICAL CO., LTD.
    • Xinquan LIU
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    EXPANSION CHAMBER FOR PROGRESSIVE SEALING SYSTEM
    • Publication number 20220389922
    • Publication date Dec 8, 2022
    • Dover Pumps & Process Solutions Segment, Inc.
    • Jason Craig Martin
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PISTON COMPRESSOR AND METHOD FOR OPERATING SAME
    • Publication number 20220372963
    • Publication date Nov 24, 2022
    • Burckhardt Compression AG
    • Alexandre VOSER
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PACKING SEAL FOR A PISTON COMPRESSOR AND METHOD FOR OPERATING SAME
    • Publication number 20220372962
    • Publication date Nov 24, 2022
    • Burckhardt Compression AG
    • Alexandre VOSER
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PACKAGING RING WITH DIAGONAL RELIEF OPENING
    • Publication number 20220145991
    • Publication date May 12, 2022
    • Bernhard Spiegl
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PACKAGING RING WITH RELIEF OPENING
    • Publication number 20220136494
    • Publication date May 5, 2022
    • Hoerbiger Wien GmbH
    • Bernhard Spiegl
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROD PACKING
    • Publication number 20220120347
    • Publication date Apr 21, 2022
    • Compressor Products International, LLC
    • Pascal Mahieux
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    COMPRESSOR AND AIR-CONDITIONER
    • Publication number 20220106952
    • Publication date Apr 7, 2022
    • Hitachi-Johnson Controls Air Conditioning, Inc.
    • Tsutomu NOZAKI
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PACKAGING RING WITH WEAR OPENING
    • Publication number 20220099183
    • Publication date Mar 31, 2022
    • Hoerbiger Wien GmbH
    • Bernhard Spiegl
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    CYCLONE SEPARATOR
    • Publication number 20220088615
    • Publication date Mar 24, 2022
    • ATLAS COPCO AIRPOWER, naamloze vennootschap
    • Tom POTTERS
    • B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
  • Information Patent Application

    COMPOSITE STRUCTURES FOR RECIPROCATING GAS COMPRESSOR SYSTEMS
    • Publication number 20220074400
    • Publication date Mar 10, 2022
    • Waukesha Bearings Corporation
    • Jie Zhou
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    3D-Printed Oil Separation for Reciprocating Compressors
    • Publication number 20210404456
    • Publication date Dec 30, 2021
    • VILTER MANUFACTURING LLC
    • Steven Fels
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    COMPRESSOR
    • Publication number 20210270271
    • Publication date Sep 2, 2021
    • FUJITSU GENERAL LIMITED
    • Kenshi UEDA
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    BELLOWS PRESSURE RELIEF VALVE
    • Publication number 20210199102
    • Publication date Jul 1, 2021
    • Graco Minnesota Inc.
    • Timothy S. Roman
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    COMPRESSOR
    • Publication number 20210131412
    • Publication date May 6, 2021
    • LG ELECTRONICS INC.
    • Taekyoung KIM
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    LINEAR COMPRESSOR AND SEALED SYSTEM FOR AN APPLIANCE
    • Publication number 20210095652
    • Publication date Apr 1, 2021
    • Gregory William Hahn
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PISTON SEAL STRUCTURE FOR INJECTOR
    • Publication number 20210025378
    • Publication date Jan 28, 2021
    • BEIJING BEIFEN-RUILI ANALYTICAL INSTRUMENT (GROUP) CO., LTD.
    • Lu CHEN
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    OIL SEPARATOR AND COMPRESSED AIR DRYING SYSTEM
    • Publication number 20210023489
    • Publication date Jan 28, 2021
    • NABTESCO AUTOMOTIVE CORPORATION
    • Takuya SUGIO
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    OIL WIPER PACKING
    • Publication number 20200386218
    • Publication date Dec 10, 2020
    • Burckhardt Compression AG
    • Norbert FEISTEL
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Annular Sealing Assembly
    • Publication number 20200332900
    • Publication date Oct 22, 2020
    • Air Products and Chemicals, Inc.
    • David Jonathan Chalk
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Application

    OIL SEPARATOR
    • Publication number 20200230535
    • Publication date Jul 23, 2020
    • DAIKIN INDUSTRIES, LTD.
    • Takashi INOUE
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    A PISTON ROD SEALING SYSTEM FOR A RECIPROCATING MACHINE AND METHOD...
    • Publication number 20200200161
    • Publication date Jun 25, 2020
    • ATLAS COPCO CREPELLE, S.A.S.
    • Vincent Paul CALOONE
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    PUMPING DEVICE
    • Publication number 20200200156
    • Publication date Jun 25, 2020
    • LEUCO S.P.A.
    • DARIO DALL'ASTA
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Seal Assembly for Reciprocating Compressor
    • Publication number 20200102946
    • Publication date Apr 2, 2020
    • Air Products and Chemicals, Inc.
    • David Jonathan Chalk
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    OIL SEPARATOR FOR A COMPRESSOR AND COMPRESSOR ASSEMBLY COMPRISING S...
    • Publication number 20200072209
    • Publication date Mar 5, 2020
    • ING. ENEA MATTEI S.P.A.
    • Giulio Contaldi
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    CYLINDER ASSEMBLE STRUCTURE FOR COMPACT AIR COMPRESSOR
    • Publication number 20200011312
    • Publication date Jan 9, 2020
    • New Motech Co., Ltd.
    • Jeong Cheol JANG
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...