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| Number | Title | Issue Date |
| 6941965 | 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... | 09/13/2005 |
| 6941821 | Ultrasonic flowmeter including stable flow rate calculation means based on instantaneous flow rate In accordance with one embodiment, a flow meter of the present invention includes: transmission/reception means provided in a flow path for performing transmission/reception using a state change of fluid; repetition means for repeating the transmission/reception; ti... | 09/13/2005 |
| 6940409 | Fluid flow detector A method and apparatus for monitoring fluid flow in a pipe or at an exit of the pipe and detecting a fault. The system includes an acoustic generator which is activated by the fluid flowing in the pipe or at the exit of the pipe. The acoustic generator sends an acou... | 09/06/2005 |
| 6937923 | Controller system for downhole applications The present invention generally provides a closed feedback system for operating peripheral devices in response to environmental conditions. Illustrative environmental conditions include well bore pressure, line pressure, fluid levels, flow rates and the like. In one... | 08/30/2005 |
| 6935191 | Fuel dispenser fuel flow meter device, system and method 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 inferential fuel flow meter may be used... | 08/30/2005 |
| 6937943 | Device and method for system and process supervision in a magneto-inductive sensor The invention relates to a method and to a device for system and process supervision in a magneto-inductive sensor. A medium flows through a measuring tube substantially in the direction of the axis of the measuring tube. A magnetic field extends through the measuri... | 08/30/2005 |
| 6934640 | Method and system for comprehensive management of chemical materials The present invention provides a method and system for management of chemical materials comprising the steps of providing a first data set containing which substances comprise the materials, providing a second data set containing which of the substances are to be co... | 08/23/2005 |
| 6934648 | Jitter measurement circuit for measuring jitter of measurement target signal on the basis of sampling data string obtained by using ideal cyclic signal A jitter measurement circuit includes: a conversion section sampling one of a reference signal and a measurement target signal in response to the other of the signals, thereby obtaining a sampling data string; and a determination section measuring jitter of the meas... | 08/23/2005 |
| 6931305 | Apparatus for monitoring and controlling pump and valve system operations A centralized monitoring and control unit for a fluid transfer facility has a connective interface providing signal connectivity to overfill and ground circuitry in individual fill lanes, to pump and valve control circuitry, and to individual ones of input mechanism... | 08/16/2005 |
| 6928369 | Ultrasonic current meter The present invention provides a small, low power consumption ultrasonic flow velocity meter. The burst signal generation section 110 generates two kinds of burst signals with a phase difference and sends these burst signals to a pair of transmission/receptio... | 08/09/2005 |
| 6925398 | Water measurement apparatus and methods Water measurement apparatus and methods of operation. An exemplary implementation of water measurement apparatus comprises a measurement circuit outputting a voltage. A processor is operatively associated with the measurement circuit to receive the voltage and deter... | 08/02/2005 |
| 6922144 | Monitoring system for a mobile storage tank A remote monitoring system for a mobile storage tank having a product container in which a remote telemetry unit gathers liquid level and head space pressure data and global position data. The remote telemetry unit effects a wireless transmission of a standard messa... | 07/26/2005 |
| 6920799 | Magnetic flow meter with reference electrode 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 process fluid. A current limiter is co... | 07/26/2005 |
| 6920409 | Apparatus for testing operation of an emergency valve Apparatus for testing an emergency valve in which a valve member (10) is movable by fluid-operated actuator (11) between a normal (open or closed) position and an emergency position (closed or open respectively). The apparatus comprises partial strokin... | 07/19/2005 |
| 6920395 | Method and apparatus for determining flow rates A fiber optic sensor system provides sufficient thermal information to determine the mass flow rates of produced fluids within a well bore, using an optical fiber placed within or adjacent to the well bore without interference with production or prejudicing the inte... | 07/19/2005 |
| 6920400 | Method and apparatus for detecting a plugged port A method and apparatus for detecting and clearing a plugged sensor port in a system containing a fluid being monitored through the sensor port. The method comprises establishing a range beyond which a fluid variable is expected to vary within a predetermined time in... | 07/19/2005 |
| 6915704 | Ultrasonic flowmeter including stable flow rate calculation means based on instantaneous flow rate In accordance with one embodiment, a flow meter of the present invention includes: transmission/reception means provided in a flow path for performing transmission/reception using a state change of fluid; repetition means for repeating the transmission/reception; ti... | 07/12/2005 |
| 6917887 | Digital flowmeter A flowmeter includes a vibratable conduit, a driver connected to the conduit and operable to impart motion to the conduit, and a sensor connected to the conduit and operable to sense the motion of the conduit. A control and measurement system is connected to the dri... | 07/12/2005 |
| 6917886 | Microflow based differential pressure sensor A differential pressure sensor based on pressure induced micro-flow that includes two connecting hoses that are considered when the pressure sensor is calibrated. The inventive differential pressure sensor includes a flexible hose as part of the device itself, and i... | 07/12/2005 |
| 6915242 | Evaluating a vortex flow-meter signal 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 is less than a low flow rate thresho... | 07/05/2005 |
| 6912472 | Method of estimating location of abnormality in fluid feed pipeline network A method of detecting the location of a failure (e.g., a sudden leak) in a fluid pipeline network, which can be suitably used for estimation of the location of a failure in a water pipeline network, includes the steps of periodically measuring a flow rate or fluid p... | 06/28/2005 |
| 6911274 | Fuel cell system A fuel cell system is described which comprises a power source and a fuel storage unit. A flowable fuel is contained with the fuel storage unit. A first flow path delivers fuel from the fuel storage unit to the power source. Some or all of this fuel is deposited int... | 06/28/2005 |
| 6912483 | In-place dynamically re-sizeable persistent historical database The specification discloses a method of maintaining a historical database of information. The method describes up to eleven segments, each segment corresponding possibly to a different data logging rate in the historical database. Points, whether measured or calcula... | 06/28/2005 |
| 6909975 | Integrated absolute and differential pressure transducer A method and apparatus integrates differential pressure measurements and absolute pressure measurements to provide virtual absolute pressure measurements over a wide range of pressures on a single integrated scale. ... | 06/21/2005 |
| 6907779 | Continuous flow measurement recorder and recording method A continuous flow measurement recorder is provided for making water flow measurements in an open channel. An ultrasonic sensor obtains pressure head measurements upstream from a flume or weir located in the open channel. A central processing unit receives the head m... | 06/21/2005 |
| 6907361 | Ultrasonic flow-measuring method An ultrasonic flow-measuring method determines the flow rate of a medium flowing through a line is determined by measuring the runtime of an ultrasonic signal that travels from a first ultrasonic transducer to at least one other ultrasonic transducer. The runtime of... | 06/14/2005 |
| 6907383 | Flow diagnostic system A flow diagnostic system for a flow sensing element and impulse lines. A pressure transmitter coupled to the impulse lines provides digital pressure data to a control system. The control system provides the pressure data and real time clock readings to a diagnostic ... | 06/14/2005 |
| 6907353 | Apparatus and method for measuring fluid characteristics A sensing element for use with a controller adapted to receive input signals corresponding to the sensing element, the sensing element having: a housing defining a conduit adapted to be in fluid communication with a fluid; a pair of sensing arrays disposed within th... | 06/14/2005 |
| 6904379 | Thermal air flowmeter A thermal type air flowmeter arranges a temperature-dependent heating resistance element in an air flow path and measures the air flow rate from the output of a gauge circuit containing the heating resistance element. A calculation circuit in the flowmeter is provid... | 06/07/2005 |
| 6895351 | Regulator flow measurement apparatus A method and an apparatus for determining fluid flow through a pressure regulator is disclosed. The pressure regulator is disposed in a fluid flow passage and has a throttling element moveable in the flow passage. A stem is attached to the throttling element. The ap... | 05/17/2005 |
| 6882941 | Tamper proof meter A fuel dispenser with a flow meter prevents fraud in the form of flow meter replacement by storing a unique identifier in the memory associated with the flow meter. The unique identifier is stored in the memory of the fuel dispenser as well. Prior to each fueling tr... | 04/19/2005 |
| 6876933 | Method and an apparatus for estimating an amount of drawn air of a cylinder of an internal-combustion engine and a method and an apparatus for controlling the amount A method and an apparatus for estimating an amount of drawn air of a cylinder and a method and an apparatus for controlling the amount of drawn air, are presented. An estimated value of an amount of drawn air of the cylinder, based on intake manifold pressure, is mu... | 04/05/2005 |
| 6868346 | Minute ventilation sensor with automatic high pass filter adjustment A minute ventilation sensing device in which transthoracic impedance is measured to generate an impedance signal from which a ventilation signal is derived, where the ventilation signal is proportional to minute ventilation. An adaptive high pass filter is used to f... | 03/15/2005 |
| 6865495 | Flow metering In order to reduce the influence of fluid velocity on a measurement of a concentration characteristic of a fluid, the magnitude of an r.m.s. signal V derived from a voltage induced in a sensor provided in relation to the fluid passage is adjusted using a factor depe... | 03/08/2005 |
| 6853928 | Two-wire electromagnetic flowmeter In a two-wire electromagnetic flowmeter, an exciting coil generates a magnetic field in a direction perpendicular to the flowing direction of a fluid that flows through a measurement tube. A flow measuring output circuit adjusts an output current that flows to a pai... | 02/08/2005 |
| 6850850 | Fluid filter flowmeter self-generating power source system and method A flowmeter for metering the volume of flow of a fluid through a filter, to enable the level of filter usage to be indicated. A preset level of metered fluid flow volume indicates a corresponding level of filter usage. The flowmeter is able to self-generate current ... | 02/01/2005 |
| 6850849 | Fluid flow monitor and control system A fluid flow monitoring, evaluation, and control system providing accurate dispensing of fluids in low volume, high pressure systems. The system includes one or more fluid flow sensors mounted on positive displacement dispensing valves and a processor that receives ... | 02/01/2005 |
| 6847901 | Electromagnetic flowmeter An electromagnetic flowmeter includes a exciting coil, exciting section, and arithmetic processing section. The exciting coil applies a magnetic field to a fluid flowing in a pipe line. The exciting section supplies an exciting current to the coil. The arithmetic pr... | 01/25/2005 |
| 6843122 | Mass flow controller for control purge and managing method of the same The present invention relates to a mass flow controller for a control purge and a managing method of the same. When a user sets the mode to a control purge mode capable of controlling a maximum flowing amount for constantly maintaining a maximum flowing amount when ... | 01/18/2005 |
| 6845330 | Electromagnetic flowmeter An electromagnetic flowmeter includes a coil, exciting section, noise eliminating section, and arithmetic processing section. The coil applies a magnetic field to a fluid flowing in a pipe line. The exciting section supplies an exciting current to the coil. The nois... | 01/18/2005 |
