TREA

Rotary-piston machines or pumps with fluid ring or the like

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Industry

  • CPC
  • F04C7/00
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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

Current Industry

F04C7/00Rotary-piston machines or pumps with fluid ring or the like
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Liquid ring pump control
    • Patent number 11,828,285
    • Issue date Nov 28, 2023
    • Edwards Technologies Vacuum Engineering (Qingdao) Company Limited
    • Andries Daniel Jozef De Bock
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Ring section pump having intermediate tie rod combination
    • Patent number 11,118,584
    • Issue date Sep 14, 2021
    • ITT Manufacturing Enterprises LLC.
    • Daniel S. Miller
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Microfluidic pump
    • Patent number 10,138,886
    • Issue date Nov 27, 2018
    • Majid Ashouri
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Liquid ring screw pump functional design
    • Patent number 10,030,654
    • Issue date Jul 24, 2018
    • Jets AS
    • Ole Asgeir Svenheim
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Bearing arrangement and wear indicator for a liquid ring vacuum pump
    • Patent number 9,964,110
    • Issue date May 8, 2018
    • Sterling Industry Consult GmbH
    • Heiner Kösters
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Liquid ring compressor
    • Patent number 9,556,871
    • Issue date Jan 31, 2017
    • Agam Energy Systems Ltd.
    • Gad Assaf
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Screw type liquid ring pump with integrated macerator
    • Patent number 9,097,257
    • Issue date Aug 4, 2015
    • JETS Invest AS
    • Eimund Øvsthus
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Liquid ring pump and method for operating a liquid ring pump
    • Patent number 8,944,778
    • Issue date Feb 3, 2015
    • Evac International Oy
    • Vesa Lappalainen
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Liquid seal pump of the helical screw type
    • Patent number 7,029,231
    • Issue date Apr 18, 2006
    • Jets AS
    • Olav Hofseth
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vacuum drainage system
    • Patent number 5,344,085
    • Issue date Sep 6, 1994
    • Olav Hofseth
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Loop pump
    • Patent number 4,820,134
    • Issue date Apr 11, 1989
    • Per-Olof Karlsson
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Electro-rheological transducer
    • Patent number 4,493,615
    • Issue date Jan 15, 1985
    • National Research Development Corp.
    • James E. Stangroom
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3102083
    • Patent number 3,102,083
    • Issue date Aug 27, 1963
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3008421
    • Patent number 3,008,421
    • Issue date Nov 14, 1961
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    2362954
    • Patent number 2,362,954
    • Issue date Nov 14, 1944
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    2201575
    • Patent number 2,201,575
    • Issue date May 21, 1940
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    2098244
    • Patent number 2,098,244
    • Issue date Nov 9, 1937
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    2092740
    • Patent number 2,092,740
    • Issue date Sep 7, 1937
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    1817196
    • Patent number 1,817,196
    • Issue date Aug 4, 1931
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    1746428
    • Patent number 1,746,428
    • Issue date Feb 11, 1930
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

  • Information Patent Application

    ELECTRONIC POSITIVE DISPLACEMENT FLUID PUMP WITH MOTOR COOLING AND...
    • Publication number 20240328415
    • Publication date Oct 3, 2024
    • DELPHI TECHNOLOGIES IP LIMITED
    • Alejandro Moreno
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    TURBOMACHINE PROVIDED WITH AN ELECTROMAGNETIC PUMP WITH AXIAL MAGNE...
    • Publication number 20220372973
    • Publication date Nov 24, 2022
    • SAFRAN HELICOPTER ENGINES
    • Franck Albert Robert DUPEU
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    RING SECTION PUMP HAVING INTERMEDIATE TIE ROD COMBINATION
    • Publication number 20180003177
    • Publication date Jan 4, 2018
    • ITT MANUFACTURING ENTERPRISES LLC
    • Daniel S. MILLER
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    MOBILE SLUDGE EXHAUSTER AND METHOD
    • Publication number 20160177952
    • Publication date Jun 23, 2016
    • J. HVIDTVED LARSEN A/S
    • Hans LARSEN
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Liquid Ring Screw Pump Functional Design
    • Publication number 20160090982
    • Publication date Mar 31, 2016
    • Jets AS
    • Ole Asgeir Svenheim
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VANE-TYPE PUMP AND HEAT RECOVERY DEVICE
    • Publication number 20150226213
    • Publication date Aug 13, 2015
    • Magna Powertrain Bad Homburg GmbH
    • Jan Hinrichs
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    LIQUID RING SCREW PUMP DESIGN
    • Publication number 20150176581
    • Publication date Jun 25, 2015
    • Jets AS
    • Olav Hofseth
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SCREW TYPE LIQUID RING PUMP WITH INTEGRATED MACERATOR
    • Publication number 20140119975
    • Publication date May 1, 2014
    • JETS INVEST AS
    • Eimund Øvsthus
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Application

    LIQUID RING PUMP AND METHOD FOR OPERATING A LIQUID RING PUMP
    • Publication number 20130089440
    • Publication date Apr 11, 2013
    • EVAC INTERNATIONAL OY
    • Vesa Lappalainen
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Liquid Ring Compressor
    • Publication number 20090290993
    • Publication date Nov 26, 2009
    • AGAM ENERGY SYSTEMS LTD.
    • Gad Assaf
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Liquid seal pump of the helical screw type
    • Publication number 20040184911
    • Publication date Sep 23, 2004
    • Olav Hofseth
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...