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| Number | Title | Issue Date |
| 8122754 | Meter proving method and system A meter proving method and system. At lease some of the illustrative embodiments are methods comprising establishing a prover time by a prover device, measuring a flow rate of a fluid with a flow meter that uses multiple measurements taken over a period of time to p... | 02/28/2012 |
| 7950265 | Toilet overflow prevention system and method A system for preventing overflow of a toilet includes a sensor, a processor and an actuator. The sensor senses a parameter caused by fluid dynamics within the toilet during a flush cycle. The parameter may involve vibration, sound, pressure, fluid flow rate or other... | 05/31/2011 |
| 7757541 | Techniques for calibration of gas flows An embodiment of a method in accordance with the present invention to determine the flow rate of a second gas relative to a first gas, comprises, setting a flow of a first gas to a known level, taking a first measurement of the first gas with a measurement technique... | 07/20/2010 |
| 7716963 | Method and apparatus for proving flow meters A method and apparatus is disclosed that determines the time delay (202) between the actual flow and the measured flow in a flow meter. The time delay is used to shift the flow measured by the flow meter to correspond to the actual flow measured by a prover o... | 05/18/2010 |
| 7712347 | Self diagnostic measurement method to detect microbridge null drift and performance A self-diagnostic measurement method to detect microbridge null drift and performance. An ASIC can be designed to include a self-diagnostic feature that automatically occurs at start up or upon command in Normal Operation whereby the temperature compensated microbri... | 05/11/2010 |
| 7690240 | Flowmeter calibration techniques Descriptions are provided for implementing flowmeter zeroing techniques. In operating a flowmeter, it may be the case that, if not properly calibrated, the flowmeter will produce erroneous measurements, e.g., will indicate a non-zero flow during a period of zero flo... | 04/06/2010 |
| 7624616 | Meter proving method and system A meter proving method and system. At lease some of the illustrative embodiments are methods comprising establishing a prover time by a prover device, measuring a flow rate of a fluid with a flow meter that uses multiple measurements taken over a period of time to p... | 12/01/2009 |
| 7523639 | Flow meter type identification A flow meter monitoring system (100) is provided according to an embodiment of the invention. The flow meter monitoring system (100) includes a communication interface (101) configured to communicate with one or more flow meters and receive mete... | 04/28/2009 |
| 7424894 | Method and apparatus for providing a determined ratio of process fluids A fluid flow control system that includes a fluid inlet to receive a flow of process fluid and a plurality of fluid outlets. The plurality of fluid outlets include a first fluid outlet and at least one second fluid outlet. The first fluid outlet provides a first pre... | 09/16/2008 |
| 7383102 | Slug flow protection system A protection system is provided that mitigates damage caused by slug flow in oil and gas production systems. The protection system opens or closes a choke valve based upon flow parameters such as the separator pressure and level, and the riser pressure. The choke va... | 06/03/2008 |
| 7380564 | System and method for a mass flow controller A system and method for controlling a mass flow controller to have a constant control loop gain under a variety of different types of fluids and operating conditions, and for configuring the mass flow controller for operation with a fluid and/or operating conditions... | 06/03/2008 |
| 7373798 | Flowmeter/prover system and method A pulse production interval measurement module (or temporal reconciliation module) for preferred use with a computational flowmeter to thereby temporally reconcile or time shift flowmeter output produced by a volume of fluid flow through the computational flowmeter ... | 05/20/2008 |
| 7367188 | System and method for diagnostic of low pressure exhaust gas recirculation system and adapting of measurement devices A system for a diesel engine having an intake manifold and an exhaust manifold, comprises a turbocharger between the intake and exhaust manifolds; a low pressure exhaust gas recirculation system having a first valve coupled thereto for regulating flow; a high pressu... | 05/06/2008 |
| 7363182 | System and method for mass flow detection device calibration Systems and methods for correcting measurements of fluid flow using device-specific information to compensate for differences between individual devices of the same design. In one embodiment, a method includes providing device-specific calibration data; sensing a fl... | 04/22/2008 |
| 7347112 | Air sampler with integrated airflow sensing Air sampler with integrated airflow sensing. The air sampler according to at least some embodiments includes an air mover that is operable to move air over a sampling media. An integrated airflow sensor is in fluid communication with the air mover. The air mover ope... | 03/25/2008 |
| 7340966 | Sensor with water ingress protection A gas monitoring system that comprises a sensor, a first valve, and a second valve. The sensor is disposed within a sensor housing that has an inlet and an outlet. The sensor generates a signal based on a characteristic of a gas within the housing. The first valve i... | 03/11/2008 |
| 7337084 | Switch-activated zero checking feature for a Coriolis flowmeter Descriptions are provided for implementing flowmeter zero checking techniques. In operating a flowmeter, it may be the case that, even if previously calibrated, the flowmeter will produce erroneous measurements, e.g., will indicate a non-zero flow during a period of... | 02/26/2008 |
| 7302356 | Coriolis flowmeter A Coriolis flowmeter having an improved measurement accuracy, especially in measurement applications, where conventional Coriolis flowmeters may have a reduced accuracy due to erroneous flow spiking or outputs during no-flow situations is described, comprising: a me... | 11/27/2007 |
| 7285420 | System and method for self-referencing a sensor in a micron-sized deep flow chamber A system and method are described herein for self-referencing a sensor that is used to detect a biomolecular binding event and/or kinetics which occur in a sample solution flowing along side a reference solution in a micron-sized deep flow channel. ... | 10/23/2007 |
| 7281423 | Characteristics adjusting apparatus of physical quantity sensing device and a thermal type air flow measuring instrument, and associated adjusting method The output characteristics of the sensing device or the control quantity of the sensing element can be adjusted by extracting an adjusting terminal in addition to a power source terminal, a ground terminal, an output terminal and the like outside a housing containin... | 10/16/2007 |
| 7280927 | Method and system for providing a linear signal from a mass airflow and/or liquid flow transducer A method and system for providing a linear signal from a flow transducer. A non-linear raw signal can be obtained from a mass flow transducer. An approximated error comprising a discrete sinusoidal function incremented by a variable and selectable omega value can th... | 10/09/2007 |
| 7277802 | Method and system for providing a linear signal from a mass flow transducer A method and system for providing a linear signal from mass flow transducer approximates the error from the original raw signal using discrete sine functions and subtracts the approximated error from the original raw signal. The method and system can be implemented ... | 10/02/2007 |
| 7275007 | Method for zero correction of a measuring device Method for zero correction of a measuring device, in particular a flowmeter, wherein a number of zero settings are carried out with the device and/or process in different states. In the case of each of these zero settings, a set of device and/or system parameters is... | 09/25/2007 |
| 7260486 | Method for operating and/or reviewing a magneto-inductive flow meter A flow meter includes a measuring tube for conveying a fluid to be measured and a magnetic field system, which has at least one field coil, through which an exciter current (IM) flows, at least at times, for producing a magnetic field passing through the ... | 08/21/2007 |
| 7249486 | Method for monitoring a sensor The present invention concerns a method of monitoring a sensor for sensing the flow speed of a medium. The invention further concerns an apparatus for carrying out that method. In order to be able to monitor the sensor, without providing redundant sensors, the flow ... | 07/31/2007 |
| 7243035 | System and method for mass flow detection device calibration Systems and methods for correcting measurements of fluid flow using device-specific information to compensate for differences between individual devices of the same design. In one embodiment, a method includes providing device-specific calibration data; sensing a fl... | 07/10/2007 |
| 7236908 | Fuzzy time-of-use metering and consumption monitoring using load profile data from relative time transmit-only devices A system and method provide Time-of-Use (TOU) rate schedules that are bound by windows of time, i.e., a type of fuzzy switch time, which is bounded on both sides, rather than instantaneous switch times. The fuzzy TOU schedule defines the time of a tier switch as the... | 06/26/2007 |
| 7223166 | Automatic scent dispensing system An automatic scent dispensing system for distributing scents on a user-adjustable schedule without requiring user attention. The system includes a tank system for holding a scent substance that includes a reservoir, and a pump. A dispensing nozzle is mountable on an... | 05/29/2007 |
| 7212953 | Portable diagnostic analysis of gas meter and electronic corrector Systems and associated apparatus, methods, and computer program products, relate to a small, portable diagnostic instrument for checking the correct operation of a gas metering system that include a gas meter, an electronic corrector, and a junction there between. S... | 05/01/2007 |
| 7194368 | Method and apparatus for correcting output information of flow measurement apparatus A method and apparatus of correcting flow information generated by flow measurement apparatus, such as a Coriolis flowmeter. The disclosed method and apparatus corrects flow information generated during low flow and zero flow rates by blocking the application of spu... | 03/20/2007 |
| 7185526 | Flowmeter calibration techniques Descriptions are provided for implementing flowmeter zeroing techniques. In operating a flowmeter, it may be the case that, if not properly calibrated, the flowmeter will produce erroneous measurements, e.g., will indicate a non-zero flow during a period of zero flo... | 03/06/2007 |
| 7184910 | Method of compensating sensor data and evaluating an interlock of an interlock system A method of compensating sensor data and a method of evaluating an interlock of an interlock system, in which an allowable variation between sensors varying depending on a driving time for a set of equipment, an RF time, the number of wafers, etc. is minimized, ther... | 02/27/2007 |
| 7168328 | Measuring device for determining the mass rate of flow of a mass flow The invention relates to a measuring device for determining the mass rate of flow of a mass flow, especially for measuring a flow of bulk material. An impeller wheel (2), which is connected to the drive shaft (3) and which is driven at a constant rotat... | 01/30/2007 |
| 7164355 | Process transmitter with a plurality of operating modes A transmitter for measuring a process variable of an industrial process includes a sensor adapted to measure the process variable and to generate a sensor output. A mode selector is adapted to select between operational modes. At least one operational mode is relate... | 01/16/2007 |
| 7151994 | Calculation of air charge amount in internal combustion engine Calculation models (22, 24) for an in-cylinder air charge amount determine an estimated intake air pressure (Pe) based on an intake air flow rate (Ms), and then determine an air charge amount (Mc) from the estimated intake air pressure (Pe). A correction exec... | 12/19/2006 |
| 7146280 | Startup and operational techniques for a digital flowmeter Startup and operational techniques for a digital flowmeter are described. The techniques select an optimal mode of operation for the digital flowmeter, depending on a current environment of the flowmeter. For example, during a startup operation of the flowmeter, the... | 12/05/2006 |
| 7137400 | Bypass loop gas flow calibration Described herein are apparatuses, methods and systems to monitor the performance of one or more mass flow controllers that supply gases to deposition, etching, and other manufacturing processes. A bypass loop is provided in fluid connection from either the process l... | 11/21/2006 |
| 7136761 | Digital flowmeter A controller for a flowmeter includes an input module operable to receive a sensor signal from a sensor connected to a vibratable flowtube. The sensor signal is related to a fluid flow through the flowtube. The controller also includes a signal processing system ope... | 11/14/2006 |
| 7114368 | Apparatus and method for verifying the volume of liquid dispensed by a liquid-dispensing mechanism An apparatus for improving the procedure for quantifying the volume of liquid dispensed by a liquid-dispensing mechanism of an analytical instrument. The apparatus of this invention comprises (a) at least one weigh cup; (b) at least one standard mass; (c) at least o... | 10/03/2006 |
| 7107169 | Device for estimating the mass flow of fuel The invention relates to a device for determining a measurement of mass flow of fluid for a combustion chamber comprising a fluid metering device and a means of measuring the position of the metering device being measured. This device comprises: | 09/12/2006 |
