TREA

Two pistons coacting within one cylinder

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  • CPC
  • F04B7/045
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Parent Industries

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F04Liquid pumps F04BPOSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS F04B7/00Piston machines or pumps characterised by having positively-driven valving

Current Industry

F04B7/045Two pistons coacting within one cylinder
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Drug delivery device
    • Patent number 12,186,529
    • Issue date Jan 7, 2025
    • Societe Industrielle de Sonceboz S.A.
    • David Staub
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Dosing apparatus for dispensing a fluid under aseptic conditions
    • Patent number 11,040,146
    • Issue date Jun 22, 2021
    • SHL MEDICAL AG
    • Ludwig Daniel Weibel
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Dosing apparatus for dispensing a fluid under aseptic conditions
    • Patent number 10,653,846
    • Issue date May 19, 2020
    • IDORSIA PHARMACEUTICALS LTD
    • Ludwig Daniel Weibel
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Piston-type transfer pump device, method for transferring particula...
    • Patent number 9,903,351
    • Issue date Feb 27, 2018
    • Commissariat a l'Energie Atomique et Aux Energies Alternatives
    • Luc-Francois Gros-D'Aillon
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Pumping system with plunger having a shaped edge and coating
    • Patent number 9,822,620
    • Issue date Nov 21, 2017
    • Muth Pump LLC
    • Garold M. Muth
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Micropump
    • Patent number 9,222,470
    • Issue date Dec 29, 2015
    • Sensile Pat AG
    • Dominique Genoud
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Device and method for pumping flowable masses
    • Patent number 9,194,383
    • Issue date Nov 24, 2015
    • HAAS-MONDOMIX B.V.
    • Alex Knobel
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Twisting translational displacement pump cartridge
    • Patent number 8,702,405
    • Issue date Apr 22, 2014
    • Brian Leonard Verrilli
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Piston pump with slot-controlled inlet valve
    • Patent number 7,661,936
    • Issue date Feb 16, 2010
    • Robert Bosch GmbH
    • Juergen Reiner
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Multiple port dual diameter pumps
    • Patent number 7,207,780
    • Issue date Apr 24, 2007
    • Scientific Products & Systems
    • David T. Bach
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Device for the metered delivery of a viscous liquid
    • Patent number 6,935,539
    • Issue date Aug 30, 2005
    • ESEC Trading SA
    • Matthias Krieger
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Device for the metered delivery of a viscous liquid
    • Patent number 6,705,845
    • Issue date Mar 16, 2004
    • ESEC Trading SA
    • Matthias Krieger
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Volumetric pump
    • Patent number 6,398,081
    • Issue date Jun 4, 2002
    • International Business Machines Corporation
    • Luigi Bassi
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Pump with inlet and outlet simultaneously exposed to pump chamber a...
    • Patent number 5,639,220
    • Issue date Jun 17, 1997
    • Brother Kogyo Kabushiki Kaisha
    • Kiyoharu Hayakawa
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Positive displacement piston metering pump
    • Patent number 5,058,779
    • Issue date Oct 22, 1991
    • Silverio B. Surdilla
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Valveless pump
    • Patent number 5,024,587
    • Issue date Jun 18, 1991
    • Dragerwerk Aktiengesellschaft
    • Christoph Maurer
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Continuously operable hydraulic device
    • Patent number 4,730,992
    • Issue date Mar 15, 1988
    • Neuberg Company Limited
    • Kenji Ogawa
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Fluid-transfer system and method
    • Patent number 4,416,596
    • Issue date Nov 22, 1983
    • Eric S. Lichtenstein
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Dosing pump
    • Patent number 4,405,294
    • Issue date Sep 20, 1983
    • Dragerwerk AG
    • Scato Albarda
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3885893
    • Patent number 3,885,893
    • Issue date May 27, 1975
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3695788
    • Patent number 3,695,788
    • Issue date Oct 3, 1972
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3471079
    • Patent number 3,471,079
    • Issue date Oct 7, 1969
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    3464359
    • Patent number 3,464,359
    • Issue date Sep 2, 1969
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    3333548
    • Patent number 3,333,548
    • Issue date Aug 1, 1967
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3302578
    • Patent number 3,302,578
    • Issue date Feb 7, 1967
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    2833226
    • Patent number 2,833,226
    • Issue date May 6, 1958
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    2705835
    • Patent number 2,705,835
    • Issue date Apr 12, 1955
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    2268000
    • Patent number 2,268,000
    • Issue date Dec 30, 1941
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    2261471
    • Patent number 2,261,471
    • Issue date Nov 4, 1941
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    2243658
    • Patent number 2,243,658
    • Issue date May 27, 1941
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

  • Information Patent Application

    DOSING APPRATUS FOR DISPENSING A FLUID UNDER ASEPTIC CONDITIONS
    • Publication number 20200297935
    • Publication date Sep 24, 2020
    • IDORSIA PHARMACEUTICALS LTD
    • Ludwig Daniel WEIBEL
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PUMPING SYSTEM WITH PLUNGER HAVING A SHAPED EDGE AND COATING
    • Publication number 20150275869
    • Publication date Oct 1, 2015
    • MUTH PUMP LLC
    • Garold M. Muth
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PISTON-TYPE TRANSFER PUMP DEVICE, METHOD FOR TRANSFERRING PARTICULA...
    • Publication number 20140003968
    • Publication date Jan 2, 2014
    • COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENE. ALT.
    • Luc-Francois Gros- D'Aillon
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    MICROPUMP
    • Publication number 20130017099
    • Publication date Jan 17, 2013
    • Sensile Pat AG
    • Dominique Genoud
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    DEVICE AND METHOD FOR PUMPING FLOWABLE MASSES
    • Publication number 20120189475
    • Publication date Jul 26, 2012
    • HAAS-MONDOMIX B.V.
    • Alex Knobel
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Twisting translational displacement pump cartridge
    • Publication number 20110073620
    • Publication date Mar 31, 2011
    • Brian Leonard Verrilli
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Translational displacement pump and bulk fluid re-supply system
    • Publication number 20080118376
    • Publication date May 22, 2008
    • Brian Leonard Verrilli
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Piston pump with slot-controlled inlet valve
    • Publication number 20050276710
    • Publication date Dec 15, 2005
    • Juergen Reiner
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Multiple port dual diameter pumps
    • Publication number 20050135952
    • Publication date Jun 23, 2005
    • David T. Bach
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Device for the metered delivery of a viscous liquid
    • Publication number 20040104252
    • Publication date Jun 3, 2004
    • ESEC Trading SA, a Swiss Corporation
    • Matthias Krieger
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Device for the metered delivery of a viscous liquid
    • Publication number 20030003005
    • Publication date Jan 2, 2003
    • ESEC Trading SA, a Swiss Corporation
    • Matthias Krieger
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Volumetric pump
    • Publication number 20010052527
    • Publication date Dec 20, 2001
    • Luigi Bassi
    • G01 - MEASURING TESTING