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Shaft sealings specially adapted for rotary-piston machines or pumps

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  • F04C15/0038
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Parent Industries

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F04Liquid pumps F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS F04C15/00Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00

Current Industry

F04C15/0038Shaft sealings specially adapted for rotary-piston machines or pumps
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Rotary lobe pump with internal bearing
    • Patent number 11,953,007
    • Issue date Apr 9, 2024
    • VOGELSANG GMBH & CO. KG
    • Paul Krampe
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Screw pump with improved sealing and bearing assembly
    • Patent number 11,905,950
    • Issue date Feb 20, 2024
    • CIRCOR PUMPS NORTH AMERICA, LLC
    • Victor Hall
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Electric pump
    • Patent number 11,905,954
    • Issue date Feb 20, 2024
    • Kabushiki Kaisha Toyota Jidoshokki
    • Tatsushi Mori
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Flexible impeller pump for flowable food product
    • Patent number 11,852,138
    • Issue date Dec 26, 2023
    • Server Products, Inc.
    • Edward Raleigh
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Gear pumps used in fluid processing lines and seal systems for flui...
    • Patent number 11,821,421
    • Issue date Nov 21, 2023
    • PSI-POLYMER SYSTEMS, INC.
    • David C. Woodcock
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Anchored low pressure gear pump wear plate
    • Patent number 11,624,361
    • Issue date Apr 11, 2023
    • Caterpillar Inc.
    • David Arthur Mork
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Pump comprising an attached gasket
    • Patent number 11,530,701
    • Issue date Dec 20, 2022
    • Schwabische Huttenwerke Automotive GmbH
    • Claus Welte
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Positive displacement pump including an unloading device
    • Patent number 11,473,574
    • Issue date Oct 18, 2022
    • Deere & Company
    • Robert C. Emmert
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Screw compressor having at least one control slide including piston...
    • Patent number 11,434,907
    • Issue date Sep 6, 2022
    • Bitzer Kuehlmaschinenbau GmbH
    • Tihomir Mikulic
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Food product pump with impeller and star wheel
    • Patent number 11,326,597
    • Issue date May 10, 2022
    • Tetra Laval Holdings & Finance S.A.
    • Ole Bendixen
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary piston pump having a sealing chamber seal
    • Patent number 11,280,335
    • Issue date Mar 22, 2022
    • VOGELSANG GMBH & CO. KG
    • Paul Krampe
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Positive displacement pump including an unloading device
    • Patent number 11,131,303
    • Issue date Sep 28, 2021
    • Deere & Company
    • Robert C. Emmert
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Direct port commutator and manifold assembly
    • Patent number 10,947,848
    • Issue date Mar 16, 2021
    • Parker-Hannifin Corporation
    • Jason Richardson
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Lubrication strategy for dry run pump system
    • Patent number 10,895,257
    • Issue date Jan 19, 2021
    • GM Global Technology Operations LLC
    • Robert Parrish
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Compressor system with purge gas system
    • Patent number 10,844,857
    • Issue date Nov 24, 2020
    • Ingersoll-Rand Industrial U.S., Inc.
    • James Christopher Collins
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Pump shaft packing gland and bushing
    • Patent number 10,760,685
    • Issue date Sep 1, 2020
    • Viking Pump, Inc.
    • Victor Christian Iehl
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Motor-driven roots pump
    • Patent number 10,738,778
    • Issue date Aug 11, 2020
    • Kabushiki Kaisha Toyota Jidoshokki
    • Takayuki Hirano
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Gear pump device for rubber extrusion
    • Patent number 10,738,776
    • Issue date Aug 11, 2020
    • Sumitomo Rubber Industries, Ltd.
    • Hiroyuki Onimatsu
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Sealed eccentric drive for submersible pump
    • Patent number 10,519,755
    • Issue date Dec 31, 2019
    • Baker Hughes, a GE company, LLC
    • David Tanner
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Mechanical seal for rotating shaft
    • Patent number 10,487,844
    • Issue date Nov 26, 2019
    • Eagle Industry Co., Ltd.
    • Masatoshi Itadani
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pump motor for high temperature fluids
    • Patent number 10,473,101
    • Issue date Nov 12, 2019
    • Nidec Motor Corporation
    • Mark S. Amalfitano
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Seal arrangement for a switchable vane cell pump of cartridge design
    • Patent number 10,458,406
    • Issue date Oct 29, 2019
    • Magna Powertrain Bad Homburg GmbH
    • Andreas Müller
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Shaft slide ring seal arrangement
    • Patent number 10,385,977
    • Issue date Aug 20, 2019
    • NETZSCH Pumpen & Systeme GmbH
    • Johann Kreidl
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Positive displacement pump including an unloading device
    • Patent number 10,309,396
    • Issue date Jun 4, 2019
    • Deere & Company
    • Robert C. Emmert
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Pump motor for high temperature fluids
    • Patent number 10,302,082
    • Issue date May 28, 2019
    • Nidec Motor Corporation
    • Mark S. Amalfitano
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Mechanical seal for rotary machine
    • Patent number 10,302,199
    • Issue date May 28, 2019
    • WILKINS IP, LLC
    • Stephen P. Wilkins
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Gear pump intended, in particular, as a high pressure fuel pump
    • Patent number 10,094,291
    • Issue date Oct 9, 2018
    • SAFRAN AIRCRAFT ENGINES
    • Philippe Vertenoeuil
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Sectional sealing system for rotary screw compressor
    • Patent number 9,803,639
    • Issue date Oct 31, 2017
    • Jan Hauser
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Internal gear pump having a rotationally fixed axial disk
    • Patent number 9,765,779
    • Issue date Sep 19, 2017
    • Robert Bosch GmbH
    • Massimiliano Ambrosi
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Sealing arrangement on a pump shaft
    • Patent number 9,759,326
    • Issue date Sep 12, 2017
    • Brinkmann Pumpen K.H. Brinkmann GmbH & Co. KG
    • Markus Helpertz
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    Double-Flow Pump
    • Publication number 20240369066
    • Publication date Nov 7, 2024
    • ITT Bornemann GmbH
    • David Johannes Blatt
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SYSTEM COMPRISING AN ELECTRIC MACHINE AND A HYDRAULIC UNIT, AS WELL...
    • Publication number 20230417244
    • Publication date Dec 28, 2023
    • Parker-Hannifin Corporation
    • Raimund PELZ
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    FLEXIBLE IMPELLER PUMP FOR FLOWABLE FOOD PRODUCT
    • Publication number 20230287885
    • Publication date Sep 14, 2023
    • SERVER PRODUCTS, INC.
    • Edward Raleigh
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SCREW PUMP WITH IMPROVED SEALING AND BEARING ASSEMBLY
    • Publication number 20230052329
    • Publication date Feb 16, 2023
    • Circor Pumps North America, LLC
    • Victor Hall
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ELECTRIC PUMP
    • Publication number 20220186728
    • Publication date Jun 16, 2022
    • Kabushiki Kaisha Toyota Jidoshokki
    • Tatsushi MORI
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY LOBE PUMP WITH INTERNAL BEARING
    • Publication number 20220025883
    • Publication date Jan 27, 2022
    • VOGELSANG GMBH & CO. KG
    • Paul Krampe
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SCREW SPINDLE PUMP
    • Publication number 20220018345
    • Publication date Jan 20, 2022
    • NIDEC GPM GmbH
    • Conrad NICKEL
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PUMP COMPRISING AN ATTACHED GASKET
    • Publication number 20210404467
    • Publication date Dec 30, 2021
    • SCHWABISCHE HUTTENWERKE AUTOMOTIVE GMBH
    • Claus Welte
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    POSITIVE DISPLACEMENT PUMP INCLUDING AN UNLOADING DEVICE
    • Publication number 20210262464
    • Publication date Aug 26, 2021
    • Deere & Company
    • Robert C. Emmert
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    BEARING WITH AN ASYMMETRIC PRESSURE BALANCE GROOVE
    • Publication number 20200392846
    • Publication date Dec 17, 2020
    • HAMILTON SUNDSTRAND CORPORATION
    • Zachary Allen Ray Le Duc
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    GEAR PUMPS USED IN FLUID PROCESSING LINES AND SEAL SYSTEMS FOR FLUI...
    • Publication number 20200392957
    • Publication date Dec 17, 2020
    • PSI-Polymer Systems, Inc.
    • David C. Woodcock
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Screw Compressor
    • Publication number 20200200170
    • Publication date Jun 25, 2020
    • Tihomir Mikulic
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Positive Displacement Pump With Shaft-Mounted Sleeve
    • Publication number 20200032790
    • Publication date Jan 30, 2020
    • AMPCO PUMPS COMPANY
    • Bob Garner
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    COMPRESSOR SYSTEM WITH PURGE GAS SYSTEM
    • Publication number 20190383290
    • Publication date Dec 19, 2019
    • Ingersoll-Rand Company
    • James Christopher Collins
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SCREW SPINDLE PUMP
    • Publication number 20190360485
    • Publication date Nov 28, 2019
    • ITT Bornemann GmbH
    • David WULSCHNER
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY PISTON PUMP HAVING A SEALING CHAMBER SEAL
    • Publication number 20190301454
    • Publication date Oct 3, 2019
    • VOGELSANG GMBH & CO. KG
    • Paul Krampe
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    POSITIVE DISPLACEMENT PUMP INCLUDING AN UNLOADING DEVICE
    • Publication number 20190285068
    • Publication date Sep 19, 2019
    • Deere & Company
    • Robert C. Emmert
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    LUBRICATION STRATEGY FOR DRY RUN PUMP SYSTEM
    • Publication number 20190249663
    • Publication date Aug 15, 2019
    • GM GLOBAL TECHNOLOGY OPERATIONS LLC
    • Robert Parrish
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    MOTOR-DRIVEN ROOTS PUMP
    • Publication number 20190226480
    • Publication date Jul 25, 2019
    • Kabushiki Kaisha Toyota Jidoshokki
    • Takayuki HIRANO
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PUMP MOTOR FOR HIGH TEMPERATURE FLUIDS
    • Publication number 20190219054
    • Publication date Jul 18, 2019
    • Nidec Motor Corporation
    • Mark S. Amalfitano
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PUMP APPARATUS
    • Publication number 20190128257
    • Publication date May 2, 2019
    • Newer Commuter, LLC
    • Andrew C. Scherer
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ELECTRIC OIL PUMP
    • Publication number 20190032657
    • Publication date Jan 31, 2019
    • NIDEC TOSOK CORPORATION
    • Shigehiro KATAOKA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    DIRECT PORT COMMUTATOR AND MANIFOLD ASSEMBLY
    • Publication number 20180371911
    • Publication date Dec 27, 2018
    • Parker-Hannifin Corporation
    • Jason Richardson
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    MECHANICAL SEAL FOR ROTARY MACHINE
    • Publication number 20180372221
    • Publication date Dec 27, 2018
    • Wilkins IP, LLC
    • Stephen P. Wilkins
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    GEAR PUMP DEVICE FOR RUBBER EXTRUSION
    • Publication number 20180320686
    • Publication date Nov 8, 2018
    • SUMITOMO RUBBER INDUSTRIES, LTD.
    • Hiroyuki ONIMATSU
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PUMP DEVICE
    • Publication number 20180180043
    • Publication date Jun 28, 2018
    • Hitachi Automotive Systems, Ltd.
    • Shigeyuki MIYAZAWA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    POSITIVE DISPLACEMENT PUMP INCLUDING AN UNLOADING DEVICE
    • Publication number 20170314553
    • Publication date Nov 2, 2017
    • Deere & Company
    • Robert C. Emmert
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SEAL ARRANGEMENT FOR A SWITCHABLE VANE CELL PUMP OF CARTRIDGE DESIGN
    • Publication number 20170260979
    • Publication date Sep 14, 2017
    • Magna Powertrain Bad Homburg GmbH
    • Andreas MÜLLER
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Rotating Pump and Securing Plate
    • Publication number 20170204855
    • Publication date Jul 20, 2017
    • FRISTAM Pumpen Schaumburg GmbH
    • Torben Hahn
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Sealing Arrangement on a Pump Shaft
    • Publication number 20170122436
    • Publication date May 4, 2017
    • BRINKMANN PUMPEN K.H. BRINKMANN GMBH & CO. KG
    • Markus Helpertz
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...