TREA

with two or more pistons reciprocating one within another

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  • CPC
  • F04B3/003
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Parent Industries

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F04Liquid pumps F04BPOSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS F04B3/00Machines or pumps with pistons coacting within one cylinder

Current Industry

F04B3/003with two or more pistons reciprocating one within another
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Compression apparatus and filling station comprising such an apparatus
    • Patent number 12,092,098
    • Issue date Sep 17, 2024
    • L'Air Liquide, Societe Anonyme Pour l'Etude et l'Exploitation des Procedes
    • Cyril Benistand-Hector
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Piston in piston variable displacement hydraulic device
    • Patent number 11,994,121
    • Issue date May 28, 2024
    • Tonand Inc.
    • Antonio Cannata
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Double acting two stage integrated pump
    • Patent number 11,300,110
    • Issue date Apr 12, 2022
    • ZF CV Systems Europe BV
    • Peter Todman
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Expansion unit for installation in a refrigerant circuit
    • Patent number 11,274,868
    • Issue date Mar 15, 2022
    • Bitzer Kuehlmaschinenbau GmbH
    • Julian Karbiner
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Multi-axis rotary piston actuator
    • Patent number 10,655,303
    • Issue date May 19, 2020
    • Woodward, Inc.
    • Kamran Eftekhari Shahroudi
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Machine for dispensing beverages from a pod, comprising a device fo...
    • Patent number 10,602,875
    • Issue date Mar 31, 2020
    • Seb S.A.
    • Matthieu Briere
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Linear compressor
    • Patent number 10,371,131
    • Issue date Aug 6, 2019
    • LG Electronics Inc.
    • Sanghyun Bae
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Multi-chamber rotary piston actuator
    • Patent number 10,273,661
    • Issue date Apr 30, 2019
    • Woodward, Inc.
    • Kamran Eftekhari Shahroudi
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Turn-back coaxial gas pressurizing pump and gas pressurizing method
    • Patent number 10,197,053
    • Issue date Feb 5, 2019
    • Beijing Const Instrument Technology Inc.
    • Weili Jiang
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    System for supplying a pressurized liquid, method for supplying a p...
    • Patent number 10,125,761
    • Issue date Nov 13, 2018
    • MINIMMA ESPRESSO, S.L.
    • Xavier Samso Besora
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Piston pump
    • Patent number 10,036,369
    • Issue date Jul 31, 2018
    • Robert Bosch GmbH
    • Oliver Gaertner
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Variable displacement piston-in-piston hydraulic unit
    • Patent number 9,784,253
    • Issue date Oct 10, 2017
    • Tonand Brakes Inc.
    • Antonio Cannata
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Positive displacement pumping system
    • Patent number 8,591,202
    • Issue date Nov 26, 2013
    • Larry Lack
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Two-stage hand pump
    • Patent number 7,353,746
    • Issue date Apr 8, 2008
    • K-Pump
    • James D. Kutella
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Very low NPSH cryogenic pump and mobile LNG station
    • Patent number 6,006,525
    • Issue date Dec 28, 1999
    • Lewis Tyree
    • F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
  • Information Patent Grant

    Internally regulated self priming fuel pump assembly
    • Patent number 5,573,381
    • Issue date Nov 12, 1996
    • Navistar International Transportation Corp.
    • Michael F. Pane
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Multiple nested pistons hand priming pump with spring biasing
    • Patent number 5,542,827
    • Issue date Aug 6, 1996
    • Navistar International Transportation Corp.
    • Bruce B. Dombek
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Cryogenic pump
    • Patent number 5,511,955
    • Issue date Apr 30, 1996
    • Cryogenic Group, Inc.
    • Bruce G. Brown
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Piston machine able to be used as a compressor or motor
    • Patent number 5,479,846
    • Issue date Jan 2, 1996
    • Seref
    • Claude Trapp
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Piston proportioning pump
    • Patent number 4,722,675
    • Issue date Feb 2, 1988
    • Dragerwerk Aktiengesellschaft
    • Scato Albarda
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Oil well pump
    • Patent number 4,720,247
    • Issue date Jan 19, 1988
    • Landell International Company, Inc.
    • Albert L. Strickland
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Cylinder-piston of a rotary compressor
    • Patent number 4,553,912
    • Issue date Nov 19, 1985
    • Marek J. Lassota
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Extra-high pressure water pump
    • Patent number 4,448,574
    • Issue date May 15, 1984
    • Aiko Engineering Co. Ltd.
    • Sachio Shimizu
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Hermetic refrigeration rotary motor-compressor
    • Patent number 4,431,356
    • Issue date Feb 14, 1984
    • Marek J. Lassota
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Hermetic refrigeration rotary motor-compressor
    • Patent number 4,431,387
    • Issue date Feb 14, 1984
    • Marek J. Lassota
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Push-button type sprayer
    • Patent number 4,424,920
    • Issue date Jan 10, 1984
    • Canyon Corporation
    • Tetsuya Tada
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Double-yoke balanced compressor
    • Patent number 4,248,050
    • Issue date Feb 3, 1981
    • The United States of America as represented by the Secretary of the Army
    • Peter Durenec
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Cryogenic pump for liquid gases
    • Patent number 4,239,460
    • Issue date Dec 16, 1980
    • Socsil S.A.
    • Roland Golz
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary compressor and process of compressing compressible fluids
    • Patent number 4,174,195
    • Issue date Nov 13, 1979
    • Marek J. Lassota
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Rotary compressor and process of compressing compressible fluids
    • Patent number 4,137,021
    • Issue date Jan 30, 1979
    • Marek J. Lassota
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

  • Information Patent Application

    PISTON IN PISTON VARIABLE DISPLACEMENT HYDRAULIC DEVICE
    • Publication number 20240410345
    • Publication date Dec 12, 2024
    • Tonand Inc.
    • Antonio Cannata
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    COMPRESSION APPARATUS AND FILLING STATION COMPRISING SUCH AN APPARATUS
    • Publication number 20230071844
    • Publication date Mar 9, 2023
    • L'Air Liquide, Societe Anonyme pour l'Etude et l?Exploitation des Procedes Ge...
    • Cyril BENISTAND-HECTOR
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    DOUBLE ACTING TWO STAGE INTEGRATED PUMP
    • Publication number 20200309103
    • Publication date Oct 1, 2020
    • WABCO Europe BVBA
    • Peter Todman
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Expansion Unit for Installation in a Refrigerant Circuit
    • Publication number 20190353414
    • Publication date Nov 21, 2019
    • Bitzer Kuehlmaschinenbau GmbH
    • Julian Karbiner
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Reciprocating Compressor System with Liquid Pumping Capability
    • Publication number 20190257306
    • Publication date Aug 22, 2019
    • Compact Compression Inc.
    • Curtis Christopher Blundell
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PISTON PUMP FOR BRAKE
    • Publication number 20160160847
    • Publication date Jun 9, 2016
    • HYUNDAI MOBIS CO., LTD.
    • Young Chang CHOI
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SYSTEM FOR SUPPLYING A PRESSURIZED LIQUID, METHOD FOR SUPPLYING A P...
    • Publication number 20140373726
    • Publication date Dec 25, 2014
    • Xavier Samso Besora
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    Pump Element of a Hydraulic Unit for a Vehicle Brake System
    • Publication number 20140298989
    • Publication date Oct 9, 2014
    • Ingo Buchenau
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    RECIPROCATING WATER PUMP
    • Publication number 20140199182
    • Publication date Jul 17, 2014
    • SUPER PRODUCTS LLC
    • Jason David Hetcher
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PISTON MACHINE FOR USE AS A VACUUM PUMP FOR MEDICAL PURPOSES
    • Publication number 20110132190
    • Publication date Jun 9, 2011
    • MAQUET GmbH & Co. KG
    • Guido Koch
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Positive Displacement Pumping System
    • Publication number 20100316504
    • Publication date Dec 16, 2010
    • Larry Lack
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Two-stage hand pump
    • Publication number 20070221056
    • Publication date Sep 27, 2007
    • K-Pump
    • James D. Kutella
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Pump
    • Publication number 20050232786
    • Publication date Oct 20, 2005
    • Steve Schneider
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...