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  • F04D15/00
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F04D15/0005by using valves F04D15/0011by-pass valves F04D15/0016mixing-reversing- or deviation valves F04D15/0022throttling valves or valves varying the pump inlet opening or the outlet opening F04D15/0027Varying behaviour or the very pump F04D15/0033By-passing by increasing clearance between impeller and its casing F04D15/0038by varying the effective cross-sectional area of flow through the rotor F04D15/0044by introducing a gas F04D15/005the pumps being of the circumferential flow type F04D15/0055Rotors with adjustable blades F04D15/0061responsive to temperature F04D15/0066by changing the speed F04D15/0072Installation or systems with two or more pumps, wherein the flow path through the stages can be changed F04D15/0077Safety measures F04D15/0083Protection against sudden pressure change F04D15/0088Testing machines F04D15/0094Indicators of rotational movement F04D15/02Stopping of pumps, or operating valves, on occurrence of unwanted conditions F04D15/0209responsive to a condition of the working fluid F04D15/0218the condition being a liquid level or a lack of liquid supply F04D15/0227Lack of liquid level being detected using a flow transducer F04D15/0236Lack of liquid level being detected by analysing the parameters of the electric drive F04D15/0245responsive to a condition of the pump F04D15/0254the condition being speed or load F04D15/0263the condition being temperature, ingress of humidity or leakage F04D15/0272the condition being wear or a position F04D15/0281responsive to a condition not otherwise provided for F04D15/029for pumps operating in parallel

Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    PUMP HEAD DELIVERY

    • Publication number 20250099740
    • Publication date Mar 27, 2025
    • MAGENTA MEDICAL LTD
    • Yosi Tuval
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PURGING A BEARING INTERFACE

    • Publication number 20250099741
    • Publication date Mar 27, 2025
    • MAGENTA MEDICAL LTD
    • Yosi Tuval
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PUMP SYSTEM

    • Publication number 20250100704
    • Publication date Mar 27, 2025
    • AIRBUS OPERATIONS LIMITED
    • Stephen TOMLINSON
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    BLOOD PUMP

    • Publication number 20250090833
    • Publication date Mar 20, 2025
    • MAGENTA MEDICAL LTD
    • Yosi Tuval
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    IMPELLER

    • Publication number 20250090834
    • Publication date Mar 20, 2025
    • MAGENTA MEDICAL LTD
    • Yosi Tuval
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    DETERMINING ANGULAR POSITION OF A ROTOR IN A DOWNHOLE ELECTRIC SUBM...

    • Publication number 20250092769
    • Publication date Mar 20, 2025
    • Halliburton Energy Services, Inc.
    • Ketankumar Kantilal Sheth
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    DETERMINING ELECTRICAL SUBMERSIBLE PUMP LIFETIME EXPECTANCY

    • Publication number 20250084756
    • Publication date Mar 13, 2025
    • Saudi Arabian Oil Company
    • Christopher Wrighton
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    SEALING ASSEMBLY FOR A PUMP WITH A LEAK PATH

    • Publication number 20250084851
    • Publication date Mar 13, 2025
    • Cooper Standard Automotive Inc.
    • David S. Malone
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    POOL COVER PUMP

    • Publication number 20250084852
    • Publication date Mar 13, 2025
    • Joseph R. Pinto
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    CONFIGURABLE BI-DIRECTIONAL AIRFLOW FAN

    • Publication number 20250059984
    • Publication date Feb 20, 2025
    • Cisco Technology, Inc.
    • Yongguo Chen
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    BED WITH USER WEIGHT TRACKING

    • Publication number 20250057481
    • Publication date Feb 20, 2025
    • Sleep Number Corporation
    • Wade Daniel Palashewski
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    STICK PUMP ASSEMBLY

    • Publication number 20250052247
    • Publication date Feb 13, 2025
    • Milwaukee Electric Tool Corporation
    • Nolan J. Henton
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SUMP PUMP SYSTEM HAVING A DUAL CONNECTOR ASSEMBLY

    • Publication number 20250043788
    • Publication date Feb 6, 2025
    • IPS CORPORATION
    • Timothy Lee WrightBrandt
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    METHOD AND APPARATUS FOR DETECTING HYDRAULIC SHOCK

    • Publication number 20250035120
    • Publication date Jan 30, 2025
    • GRUNDFOS HOLDING A/S
    • Torben NIELSEN
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ELECTRIC SUBMERSIBLE PUMP AUTOMATIC DATA DRIVEN SETPOINT MANAGEMENT

    • Publication number 20250027501
    • Publication date Jan 23, 2025
    • Baker Hughes Oilfield Operations LLC
    • Nicholas Christopher Styles
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    METHODS RELATED TO STARTUP OF AN ELECTRIC SUBMERSIBLE PUMP

    • Publication number 20250027500
    • Publication date Jan 23, 2025
    • Sensia LLC
    • David Milton Eslinger
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    METHOD AND APPARATUS FOR DETECTING HYDRAULIC SHOCK

    • Publication number 20250020128
    • Publication date Jan 16, 2025
    • GRUNDFOS HOLDING A/S
    • Torben NIELSEN
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Pump System

    • Publication number 20250012295
    • Publication date Jan 9, 2025
    • J.C. Bamford Excavators Limited
    • Lee James Harper
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    COMPRESSIBLE AND EXPANDABLE BLADE FOR A FLUID PUMP

    • Publication number 20250012283
    • Publication date Jan 9, 2025
    • ECP ENTWICKLUNGSGESELLSCHAFT MBH
    • Thomas Toellner
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Sensor For Fluid Pump

    • Publication number 20250003413
    • Publication date Jan 2, 2025
    • Dean Richard Howard
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VENTRICULAR ASSIST DEVICE

    • Publication number 20250000376
    • Publication date Jan 2, 2025
    • MAGENTA MEDICAL LTD
    • Yosi Tuval
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PERFORMANCE DERATING CONTROL IN A CIRCULATING PUMP

    • Publication number 20240418172
    • Publication date Dec 19, 2024
    • GRUNDFOS HOLDING A/S
    • Robert GREVE
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    GAS SEAL COLUMN APPARATUS WITH SENSOR COLUMN

    • Publication number 20240418173
    • Publication date Dec 19, 2024
    • GSCD Corp.
    • William Louis Kacin
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    REVERSING POLARITY OF A PUMP ON FAILURE, AND APPLICATIONS THEREOF

    • Publication number 20240410373
    • Publication date Dec 12, 2024
    • ZOELLER PUMP COMPANY, LLC
    • Anthony Scott HUNCHMAN
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    FLUID TRANSPORTATION NETWORK AND METHOD

    • Publication number 20240410374
    • Publication date Dec 12, 2024
    • BELIMO HOLDING AG
    • Andy BROOKS
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    METHOD AND ARRANGEMENT FOR OPERATING PUMP SYSTEM

    • Publication number 20240405705
    • Publication date Dec 5, 2024
    • ABB Schweiz AG
    • Matti Eskola
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    HYDRATION SYSTEM AND COMPONENTS THEREOF

    • Publication number 20240392904
    • Publication date Nov 28, 2024
    • RainMaker Solutions, Inc.
    • EDUARD ALBERT JAEGER
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    PRESSURE CONTROLLED PUMP SYSTEMS

    • Publication number 20240392791
    • Publication date Nov 28, 2024
    • HAMILTON SUNDSTRAND CORPORATION
    • Ryan Prescott Susca
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    FLUID DELIVERY SYSTEM HEALTH MONITORING SYSTEMS AND METHODS

    • Publication number 20240392790
    • Publication date Nov 28, 2024
    • Oshkosh Corporation
    • Eric R. Linsmeier
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Adaptive Learning System for Improving Sump Pump Control

    • Publication number 20240384724
    • Publication date Nov 21, 2024
    • State Farm Mutual Automobile Insurance Company
    • Nathan L. Tofte
    • G06 - COMPUTING CALCULATING COUNTING