Flow Meter Free Patent Search

  • Flow meter alarm device

    Flow Meter Abstract: A flow meter alarm device easily attached to and removed from a flow meter at various locations along the length of the flow meter. The device is compatible with flow meters which have a float for measuring flow velocity. The dev...

  • Air flow meter

    Flow Meter Abstract: An air flow meter which can decrease the error due to the backflow. Throttle valve 17 which opens and shuts the air intake passage is installed in the air intake passage of the internal combustion engine. The first sensor part 16...

  • Flow meter using an expanded tube section and sensitive differential pressure measurement

    Flow Meter Abstract: A method and apparatus for measuring the flow rate of a fluid within tubing disposed within a downhole wellbore. The present invention provides an inverse Venturi meter inserted within tubing with an enlarged inner diameter porti...

  • Evaluating a vortex flow-meter signal

    Flow Meter Abstract: A signal processor, for use with a zero crossing module of a vortex flow meter, includes a peak amplitude detector, a comparator, and a filter module. The filter module is enabled when the comparator determines that the amplitude...

  • Compact flow meter

    Flow Meter Abstract: Apparatus for measuring the composition and flow rate of a fluid (1) comprising a mixture of e.g. oil and water in a pipe (2), wherein an integrated mechanical structure (3) serves as a microwave resonator sensor for providing pe...

  • Magnetic flow meter with reference electrode

    Flow Meter Abstract: An magnetic flow meter is provided which includes a reference electrode configured to electrically couple process fluid flowing within a flowtube of the flow meter. The reference electrode is adapted to measure potential of the p...

  • Positive displacement flow meter method and apparatus

    Flow Meter Abstract: A flow meter comprising a rotor assembly that is comprised of two rotors having axis of rotation offset from collinear where the two rotors define operating chambers that changing volume with respects to rotation and allow fluid...

  • Multiphase flow meter using multiple pressure differentials

    Flow Meter Abstract: A flowmeter, and a method of, measuring the flow of a multi-phase fluid is described. The flowmeter has a first pressure sensor located in a conduit for measuring a first pressure differential at a first location and a second res...

  • Fuel dispenser fuel flow meter device, system and method

    Flow Meter Abstract: A flow switch used on conjunction with a fuel flow meter in a fuel dispenser to determine when fuel flow rate signals form a fuel flow meter should be ignored in the calculation of flow rate and/or volume of fuel dispensed. An in...

  • Acoustic flow meter in the form of a valve key

    Flow Meter Abstract: An acoustic flow meter in the form of a valve key has an acoustic sensor 12 for measuring the peak sound level which occurs when the key is used to close a valve in a fluid pipeline. The peak sound level can be used to accurately...

  • Flow meter

    Flow Meter Abstract: The flow meter is a device having a laser Doppler anemometer (LDA) which measures the instantaneous center line velocity of fluid flow in a pipe and processes the instantaneous velocity so obtained to compute the volumetric flow...

  • Non-intrusive multiphase flow meter

    Flow Meter Abstract: Embodiments of the present invention generally provide methods, apparatus, and systems for determining void fractions of individual phase components of a multiphase mixture. The void fractions may be determined based on measured...

  • Protected integral cylinder valve, gas pressure regulator and flow meter, and method for refilling a

    Flow Meter Abstract: A device for pressurized contents and an associated method. The device includes a container and a port assembly. In one aspect, the port assembly includes a body, a plunger, a seal arrangement, a plunger bias device, an...

  • Flow meter having a rebounding plate with a filter assembly

    Flow Meter Abstract: A flow meter, particularly for warm water heating systems, includes a measuring element and an indicator element. The indicator element has a basic component with a cylindrical attachment extending into the collector pi...

  • Electromagnetic flow meter

    Flow Meter Abstract: There is described herein a method of obtaining a measure of flow from an electromagnetic flow meter having at least one field generating coil and potential sensing electrodes. A composite excitation waveform is applied...

  • Gas flow meter

    Flow Meter Abstract: A gas flow meter having a gas flow detection circuit for detecting a current flowing through a resistor installed in a gas passage and a voltage generated across the resistor and outputting a voltage signal representing...

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  • Total 21 pages, 356 patent(s)