piston or piston-rod being used as auxiliary valve

Patents Grantslast 30 patents

  • Information Patent Grant

    Hydraulic fluid pump and retainer assembly for same

    • Patent number 11,359,739
    • Issue date Jun 14, 2022
    • GD ENERGY PRODUCTS, LLC
    • Robert James Dyer
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Engine block and a process for hybrid ignition of an engine

    • Patent number 10,087,818
    • Issue date Oct 2, 2018
    • Paul Jermyn D. Ocampo
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Compact linear actuator

    • Patent number 9,291,161
    • Issue date Mar 22, 2016
    • James Victor Hogan
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Reversing valve for a compressed air membrane pump

    • Patent number 6,382,934
    • Issue date May 7, 2002
    • ALMATEC Maschinenbau GmbH
    • Dirk Budde
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Pressure medium driven device performing linear motion

    • Patent number 5,683,230
    • Issue date Nov 4, 1997
    • Reijo Karppinen
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Method of forming a seal between a control shaft and bushing

    • Patent number 5,619,786
    • Issue date Apr 15, 1997
    • Wilden Pump & Engineering Co.
    • Kerry W. Baland
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Fluid driven recipricating apparatus

    • Patent number 5,616,005
    • Issue date Apr 1, 1997
    • Regents of the University of California
    • John C. Whitehead
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Shaft seal arrangement for air driven diaphragm pumping systems

    • Patent number 5,611,678
    • Issue date Mar 18, 1997
    • Wilden Pump & Engineering Co.
    • Wilfred D. Pascual
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Pneumatically shifted reciprocating pump

    • Patent number 5,558,506
    • Issue date Sep 24, 1996
    • John M. Simmons
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Air driven device

    • Patent number 5,538,042
    • Issue date Jul 23, 1996
    • Wilden Pump & Engineering Co.
    • Kerry W. Baland
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Pneumatically operated double acting pump for viscous food stuffs

    • Patent number 5,520,520
    • Issue date May 28, 1996
    • Tomijiko Nakamoto
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Apparatus for driving piston by fluid pressure

    • Patent number 5,493,945
    • Issue date Feb 27, 1996
    • Kabushiki Kaisha Kosmek
    • Toyokazu Matsumura
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Shaft seal

    • Patent number 5,441,281
    • Issue date Aug 15, 1995
    • Wilden Pump & Engineering Co.
    • Kerry W. Baland
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Valving for controlling a fluid-driven reciprocating apparatus

    • Patent number 5,427,507
    • Issue date Jun 27, 1995
    • Regents of the University of California
    • John C. Whitehead
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Gas booster assembly for fluid pressure piston driving apparatus

    • Patent number 5,252,042
    • Issue date Oct 12, 1993
    • Kabushiki Kaisha Kosmek
    • Keitaro Yonezawa
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Fluid-driven reciprocating apparatus and valving for controlling same

    • Patent number 5,222,873
    • Issue date Jun 29, 1993
    • The United States of America as represented by the United States Department o...
    • John C. Whitehead
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Fluid compressors

    • Patent number 5,049,038
    • Issue date Sep 17, 1991
    • Normalair-Garrett (Holdings) Ltd.
    • Robin H. J. Searle
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Variable frequency control for percussion actuator

    • Patent number 5,031,505
    • Issue date Jul 16, 1991
    • Ingersoll-Rand Company
    • Paul B. Campbell
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Variable frequency control for percussion actuator

    • Patent number 5,022,309
    • Issue date Jun 11, 1991
    • Ingersoll-Rand Company
    • Paul B. Campbell
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Apparatus for driving piston by fluid pressure

    • Patent number 4,812,109
    • Issue date Mar 14, 1989
    • Kabushiki Kaisha KOSMEK
    • Keitaro Yonezawa
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Double admitting pressure intensifier

    • Patent number 4,735,051
    • Issue date Apr 5, 1988
    • Veb Kombinat Orsta-Hydraulik
    • Karl Bittel
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Reciprocating piston fluid powered motor

    • Patent number 4,708,053
    • Issue date Nov 24, 1987
    • Sprague Devices, Inc.
    • Alan K. Forsythe
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Engine with pneumatic valve actuation

    • Patent number 4,702,147
    • Issue date Oct 27, 1987
    • Don E. Johnson
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Hydrualic pressure amplifier

    • Patent number 4,659,294
    • Issue date Apr 21, 1987
    • Eimco Secoma, Societe Anonyme
    • Jean-Claude S. Barthomeuf
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Reciprocating piston fluid powered motor

    • Patent number 4,632,013
    • Issue date Dec 30, 1986
    • Sprague Devices, Inc.
    • Richard Frigon
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Double-diaphragm pumps

    • Patent number 4,624,628
    • Issue date Nov 25, 1986
    • Flotronics AG
    • Derek N. Marchant
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Unbalanced spool

    • Patent number 4,397,614
    • Issue date Aug 9, 1983
    • Fluid Devices Limited
    • Donald A. Larner
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Fluid supply system using one fluid medium to move a second fluid m...

    • Patent number 4,388,049
    • Issue date Jun 14, 1983
    • Deere & Company
    • Ronnie F. Burk
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Hydraulic impactor

    • Patent number 4,363,258
    • Issue date Dec 14, 1982
    • Joy Manufacturing Company
    • John Duff
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Hammer

    • Patent number 4,344,353
    • Issue date Aug 17, 1982
    • Joy Manufacturing Company
    • John Duff
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES

Patents Applicationslast 30 patents

  • Information Patent Application

    HYDRAULIC FLUID PUMP AND RETAINER ASSEMBLY FOR SAME

    • Publication number 20200080660
    • Publication date Mar 12, 2020
    • GARDNER DENVER PETROLEUM PUMPS, LLC
    • Robert James Dyer
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    HYDRAULIC FLUID PUMP AND RETAINER ASSEMBLY FOR SAME

    • Publication number 20200080661
    • Publication date Mar 12, 2020
    • GARDNER DENVER PETROLEUM PUMPS, LLC
    • Chance Ray Mullins
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    AN ENGINE BLOCK AND A PROCESS FOR HYBRID IGNITION OF AN ENGINE

    • Publication number 20170107894
    • Publication date Apr 20, 2017
    • Paul Jermyn D. Ocampo
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    COMPACT LINEAR ACTUATOR

    • Publication number 20140090552
    • Publication date Apr 3, 2014
    • James Victor HOGAN
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    REVERSING VALVE FOR A COMPRESSED AIR MEMBRANE PUMP

    • Publication number 20010016169
    • Publication date Aug 23, 2001
    • ALMATEC MASCHINENBAU GmbH
    • DIRK BUDDE
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...