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| Number | Title | Issue Date |
| 8093917 | Sampling apparatus A sampling apparatus for sampling a fluid from a fluid source includes a first fluid passage device, a second fluid passage device and a fluid by-pass. The first fluid passage device is disposed downstream of and in fluid communication with the fluid source. The sec... | 01/10/2012 |
| 7654151 | Method and apparatus for measuring multi-streams and multi-phase flow A method for correcting measurements of conventional flow meters is provided. Using prior determination of fundamental behavior parameters, flow meter measurements are iteratively calculated to improve their accuracy and eliminate the need for dissimilar momentum me... | 02/02/2010 |
| 7644632 | Viscometric flowmeter A meter for reproducibly and accurately measuring the delivery or flow rate of known fluids in chromatography and other pressure driven pumping systems, comprising a sense tube of known effective radius and length, coupled to a temperature measuring device, and encl... | 01/12/2010 |
| 7409871 | Mass flow meter or controller with inclination sensor A thermal mass flow meter associated with an inclination sensor that detects an angle of inclination of at least one portion of a thermal mass flow sensor relative to at least one reference axis. Based upon the detected angle of inclination, the output signal of the... | 08/12/2008 |
| 7367239 | Piezocable based sensor for measuring unsteady pressures inside a pipe A piezocable-based sensor for measuring unsteady pressures inside a pipe comprises at least one cable extending around at least a portion of a circumference of the pipe. The cable includes a first electrical conductor, a piezoelectric material disposed around the fi... | 05/06/2008 |
| 7353703 | Method for detecting the fuel quantity during the refueling of a motor vehicle In an example method for detecting the fuel quantity during the refueling of a motor vehicle, the volume of the fuel conducted to the motor vehicle during the refueling operation and the temperature of the fuel are measured. The measured volume is corrected to prede... | 04/08/2008 |
| 7334484 | Line pressure measurement using differential pressure sensor A pressure sensor assembly for sensing a pressure of a process fluid includes a sensor body having a cavity formed therein to couple to a process fluid pressure. A deflectable diaphragm in the cavity deflects in response to the first and second process fluid pressur... | 02/26/2008 |
| 7331415 | Pedestrian impact sensing apparatus for a vehicle bumper An impact sensing apparatus includes a laterally extending air channel within a block of foam or other crushable medium disposed between a bumper fascia and a rigid bumper frame element, and one or more airflow sensors for detecting airflow within the air channel. T... | 02/19/2008 |
| 7308820 | Piezocable based sensor for measuring unsteady pressures inside a pipe A piezocable based sensor for measuring unsteady pressures inside a pipe comprises a cable wrapped around the pipe and an outer band compressing the cable towards the pipe. The cable provides a signal indicative of unsteady pressure within the pipe in response to ex... | 12/18/2007 |
| 7287434 | System and method for measuring flow One embodiment of the present invention can comprise a primary flow measurement system, a secondary flow measurement system in fluid communication with the primary flow measurement system and a control coupled to the primary flow measurement system and the secondary... | 10/30/2007 |
| 7284455 | Electronic environment sensing instrument having an analog indicator An electronic environment sensing instrument having an analog indicator has a casing having a front panel with a scale, an electronic sensing and driving assembly mounted in the casing, a needle and a DC power supply. The electronic driving indicator assembly has a ... | 10/23/2007 |
| RE39724 | Respiratory humidification system A flow probe for use in a humidification system is disclosed. The flow probe is adapted to be positioned in a humidified gases flow (for example oxygen or anesthetic gases) such as that which is provided to a patient in a hospital environment. The flow probe is desi... | 07/17/2007 |
| 7152460 | Apparatus and method for compensating a coriolis meter A flow measuring system is provided that provides at least one of a compensated mass flow rate measurement and a compensated density measurement. The flow measuring system includes a gas volume fraction meter in combination with a coriolis meter. The GVF meter measu... | 12/26/2006 |
| 7139667 | Method for calibrating a volumetric flow meter having an array of sensors A method and apparatus are provided for calibrating a flow meter having an array of sensors arranged in relation to a pipe that measures a flow rate of a fluid flowing in the pipe. The method features the step of calibrating the flow rate using a calibration correct... | 11/21/2006 |
| 7134320 | Apparatus and method for providing a density measurement augmented for entrained gas A flow measuring system combines a density measuring device and a device for measuring the speed of sound (SOS) propagating through the fluid flow and/or for determining the gas volume fraction (GVF) of the flow. The GVF meter measures acoustic pressures propagating... | 11/14/2006 |
| 7098409 | Apparatus for weighing materials online An apparatus for weighing materials online is disclosed, which belongs to an art of online weighing of material. The apparatus comprises: a light-emitting unit, emitting light beams irradiating on the surface of materials transported on a belt to form a bright proje... | 08/29/2006 |
| 7058549 | Apparatus and method for measuring unsteady pressures within a large diameter pipe An apparatus 10 is provided that includes a spatial array of at least two unsteady pressure sensors 18–21 placed at predetermined axial locations x1–xN disposed axially along a pipe 14 for measuring at least one paramet... | 06/06/2006 |
| 7054767 | Thermal mass flowmeter apparatus and method with temperature correction A thermal mass flowmeter with temperature correction. The flowmeter includes a bridge, a signal conditioner, and a balancer. The balancer provides a bridge signal as feedback to the bridge that balances a flow sensor signal and the temperature sensor signal from the... | 05/30/2006 |
| 7000450 | Method, computer program and device for measuring the injection quantity of injection nozzles, especially for motor vehicles In a method for measuring the injection quantity of injection systems, in particular for motor vehicles and in particular in production testing, an injection system injects a testing fluid into a measuring chamber. A detection device detects a movement of a piston, ... | 02/21/2006 |
| 6992590 | Systems and methods for sensing a fluid supply status A system that includes a container containing a fluid, a fluid line coupled with the container, and a pump configured to pump the fluid out of the container through the fluid line. The system further includes a sensor that includes a wireless transmitter. The sensor... | 01/31/2006 |
| 6955095 | Accurate cryogenic liquid dispenser A system for dispensing cryogenic liquid to a use device includes a bulk storage tank providing LNG to a sump containing a meter submerged in LNG. A temperature probe is also submerged in the LNG. A dispensing line is positioned between the meter and dispensing hose... | 10/18/2005 |
| 6938459 | Method for detecting moisture level in apparatus for treating and preparing food and related food treatment and preparation apparatus The present invention refers to a method of detecting the moisture in an apparatus for treating and preparing food, as well as to a method of treating and preparing food. In the method according to the invention, the current temperature values and speed values of th... | 09/06/2005 |
| 6744389 | A/D-converter with lookup table The A/D-converter with optional analog preprocessing comprises two analog inputs (I1, I2), wherein a converter (1, 2) is connected to each input for generating a first and a second digital value (D1, D2) respectively. These are fed... | 06/01/2004 |
| 6745135 | Majority component proportion determination of a fluid using a coriolis flowmeter A system, method, and software are disclosed that determine a proportion of a majority component of a fluid that is flowing through a Coriolis flowmeter. Circuitry receives pickoff signals and a temperature signal from the Coriolis flowmeter responsive to the fluid ... | 06/01/2004 |
| 6532828 | Device for temperature compensation in an acoustic flow meter A meter includes a casing (1) with a fluid passage (2), in which two transducer mountings (3, 4) arranged at a distance (Lb) from each other support two transducers (5, 6) which are acoustically opposed to each other. Between the transducers (5... | 03/18/2003 |
| 6520009 | Air flow rate measuring apparatus An air flow rate measuring apparatus generates a flow rate signal with a nonlinear characteristic from a flow rate detecting unit provided with a heat generating resistor and converts that into a signal with a linear characteristic by a linearizing circui... | 02/18/2003 |
| 6305231 | Flow metering A method of measuring a characteristic of a flowing fluid comprising measuring said characteristic by means of two or more sensors which have differing responses to a variable affecting said measurement, and combining the outputs (as herein defined) of th... | 10/23/2001 |
| 6272933 | Respiratory humidification system A flow probe for use in a humidification system is disclosed. The flow probe is adapted to be positioned in a humidified gases flow (for example oxygen or anesthetic gases) such as that which is provided to a patient in a hospital environment. The flow pr... | 08/14/2001 |
| 6116095 | Apparatus and method for measuring air flow from a duct system A method and apparatus for selectively predicting the air flows from a duct system that would be produced by environment conditioning plants. The apparatus includes a measurement duct connected to a blower. A restrictor plate is movably mounted over an in... | 09/12/2000 |
| 5902927 | Fluid metering apparatus and method A method and apparatus are described for controlling demand of a fluid. The method includes measuring a fluid supply pressure in a supply pipe, determining that the fluid supply pressure is lower than a predetermined threshold supply pressure, and directi... | 05/11/1999 |
| 5900534 | Densitometer A densitometer (10) includes a gas sample plenum (40) that is connected to a gas supply pipe (26) via a flow-restricted inlet duct (42) to at least partially isolate and damp the sample plenum (40) from shocks and noises, turbulences, and abrupt pressure ... | 05/04/1999 |
| 5895863 | Smart flowmeter pre-amplifier A flowmeter (M) measures fluid flow in a system and produces a train (Si) of digital pulses representing the measured flowrate. The frequency of the pulses is intended to be proportional to the flowrate. A preamplifier (10) controls generation of output p... | 04/20/1999 |
| 5564306 | Density compensated gas flow meter A mass flow meter for a gas dispenser includes apparatus and method for determining specific heat ratio of the gas as a function of two pressure measurements in relation to a nozzle and for determining mass flow rate as a function of the specific heat rat... | 10/15/1996 |
| 5551282 | Method and apparatus for measuring volume correction using molar quantities A method and apparatus for measuring volume correction in a gas pipeline using a variable volume chamber where the gas is sampled at the temperature and pressure of gas in the pipeline. A portion of a known volume of sample gas is released and a change of... | 09/03/1996 |
| 5544531 | Flowmeter having active temperature compensation A method and apparatus for measuring fluid flow is characterized by compensating for temperature variations in the fluid level pressure transducer. The transducer is operated at a plurality of different combinations of pressure and temperature, and the dr... | 08/13/1996 |
| 5515295 | Methods and systems for fluid identification and flow rate determination Methods and systems for determining the identity and flow rate of a fluid are provided. Linearized output signals are provided. To determine fluid flow, a test fluid is passed through a conduit. A heater associated with the conduit is maintained a tempera... | 05/07/1996 |
| 5502660 | Dynamic gas density compensation in pulmonary gas analyzer systems A method is described for dynamically calibrating a flowmeter used in cardiopulmonary performance analyzing equipment which takes into account the ambient conditions at the test site in terms of relative humidity, barometric pressure and temperature. At t... | 03/26/1996 |
| 5481924 | Method and apparatus for assessing and quantifying pulsation induced error in gas turbine flow meters A method and apparatus for identifying, quantifying and correcting turbine meter errors related to pulsation effects in a gas stream being measured. A turbine meter pulse rate output signal is monitored and abnormal pulse rate modulations in the signal ar... | 01/09/1996 |
| 5463903 | Torque flowmeter A flowmeter particularly for use in determining fluid velocity in oil wells where a torque impeller is connected to a torque force transducer through a torque shaft and a torque coupler. The torque coupler provides for frictionless transfer of torque forc... | 11/07/1995 |
| 5445035 | Precision gas mass flow measurement apparatus and method maintaining constant fluid temperature in thin elongated flow path A mass flow meter includes a body having a cylindrical bore and an elongated cylindrical piston positioned in the bore concentrically therewith. An elongated annular fluid flow channel of uniform depth is bounded by a cylindrical surface of the piston and... | 08/29/1995 |
