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| Number | Title | Issue Date |
| 8087303 | Product dispensing system A flow sensor includes a fluid chamber configured to receive a fluid. A diaphragm assembly is configured to be displaced whenever the fluid within the fluid chamber is displaced. A transducer assembly is configured to monitor the displacement of the diaphragm assemb... | 01/03/2012 |
| 7878051 | Liquid flow measurement apparatus and method utilizing a bubble in a passage A liquid measurement apparatus is configured to measure an amount of liquid flowing from a measured object. The apparatus includes a passage member having a measurement passage being connected to the measured object at one end. The measurement passage is filled with... | 02/01/2011 |
| 7647842 | Pressure-based fluid flow sensor A volumetric fluid flow sensor (100) includes a flow channel (120) for flowing a fluid therein; and a diaphragm (110) having an outer surface within the flow channel (120). The diaphragm (110) includes at least one flow disrupting ... | 01/19/2010 |
| 7402425 | Stress-based electrostatic monitoring of chemical reactions and binding Electrostatic capacitance measurements are used to detect chemical or biological analytes, or chemical interactions, with great sensitivity. A diaphragm is coated with a material capable of selectively interacting with an analyte of interest, and interaction of the ... | 07/22/2008 |
| 7392710 | Flow meter probe with force sensors The flow meter probe with force sensors has the body of a frustum of a regular pyramid with a force sensor disposed upon each face. The force sensors are mounted in bores defined in the probe body and include a pin that may be displaced in the bore to exert pressure... | 07/01/2008 |
| 7367241 | Differential pressure type flowmeter and differential pressure type flow controller A differential pressure type flowmeter comprises an orifice, a detector to detect a fluid pressure P1 on the upstream side of an orifice, a detector to detect a fluid pressure P2 on the downstream side of an orifice, a detector to detect a flui... | 05/06/2008 |
| 7363809 | Methods and systems for providing air data parameters using mass flow and pressure sensors A system is described that is configured to determine a plurality of air data parameters for an air vehicle. The system includes a mass air flow sensor, a pressure sensor, and a controller. The mass air flow sensor is mounted to sense an air flow caused by movement ... | 04/29/2008 |
| 7350423 | Real time usage monitor and method for detecting entrapped air A dispensing system for feeding paste through a screen onto a workpiece monitors the position of a piston applying pressure to the paste with a linear variable differential transformer and sets limits on the slope of the piston displacement is a measure of the feed ... | 04/01/2008 |
| 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 |
| 7321846 | Two-wire process control loop diagnostics A diagnostic device for coupling to a process control loop includes digital communication circuitry configured to receive a digital communication signal from the process control loop. The digital communication signal is a digitally modulated analog signal on the pro... | 01/22/2008 |
| 7292945 | Fluid flow measuring and proportional fluid flow control device The present invention provides restrictive-flow flow measurement devices, valve improvements and signal control devices and processes that control the flow of liquids, including control processes for single-liquid calibration. ... | 11/06/2007 |
| 7290450 | Process diagnostics A diagnostic device for use in a industrial process includes monitoring electronics or diagnostic circuitry configured to diagnose or identify a condition or other occurrence in the industrial process. The system can be implemented in a process device such as a flow... | 11/06/2007 |
| 7254518 | Pressure transmitter with diagnostics In one embodiment, a pressure transmitter is provided which diagnoses the condition of a primary element and/or an impulse line which connects to a pressure sensor. A difference circuit coupled to the pressure sensor has a difference output which represents the sens... | 08/07/2007 |
| 7254493 | Pressure transducer based fluid velocity sensor The invention consists of a pressure transducer based air velocity sensor that has been optimized for use in metal ducts. The fluid flow velocity is determined by measuring the propagation delay of a direct path pressure wave signal transmitted through the fluid as ... | 08/07/2007 |
| 7150994 | Parallel flow process optimization reactor Parallel flow reaction systems comprising four or more reaction channels are disclosed. Distribution systems, and parallel flow reaction systems comprising such distribution systems are also disclosed. Specifically, the distribution systems comprise one or more subs... | 12/19/2006 |
| 7148077 | Micromechanical structural element having a diaphragm and method for producing such a structural element A micromechanical structural element, having a very stable diaphragm, implemented in a pure front process and in a layer construction on a substrate. The layer construction includes at least one sacrificial layer and one diaphragm layer above the sacrificial layer, ... | 12/12/2006 |
| 7122156 | Parallel flow reactor having variable composition Parallel flow reaction systems comprising four or more reaction channels are disclosed. Distribution systems, and parallel flow reaction systems comprising such distribution systems are also disclosed. Specifically, the distribution systems comprise a feed-compositi... | 10/17/2006 |
| 7117732 | Fuel gauge for fuel cartridges Fuel gauges for fuel supplies for fuel cells are disclosed. Each fuel gauge has a property that is readable by an electrical circuit. These properties are related to the remaining fuel in the fuel supplies. These properties include, but are not limited to, electrica... | 10/10/2006 |
| 7118917 | Parallel flow reactor having improved thermal control Parallel flow chemical processing systems, such as parallel flow chemical reaction systems are disclosed. These systems are adapted to simultaneously and independently vary temperature between separate flow channels, preferably by employing separate, individual heat... | 10/10/2006 |
| 7096738 | In-line annular seal-based pressure device A pressure sensor for measuring a pressure of a process fluid includes a vessel, an electrode and a diaphragm. The vessel receives the process fluid. The electrode is integral with an inner wall of the vessel. The diaphragm extends at least partially over the electr... | 08/29/2006 |
| 7093483 | Differential pressure wind meter A wind meter comprising a plurality of micro-electro-mechanical (MEM) differential pressure sensors positioned in a lobed housing, with an even number of circumferential ports arranged in an equally-spaced, circular pattern at the distal ends of the lobes of the hou... | 08/22/2006 |
| 7085610 | Root cause diagnostics An industrial process diagnostic apparatus is provided which can identify a source, or “root cause”, of an aberration in an industrial process. A plurality of process configuration models are provided which each represent a physical (or actual) implementation of... | 08/01/2006 |
| 7080551 | Fluid volume measuring apparatus with bubble in fluid A fluid volume measuring apparatus for measuring volume of fluid flowing out of a measured object includes a passage member that defines a measurement passage. The measurement passage is filled with fluid, which is capable of moving in the measurement passage in acc... | 07/25/2006 |
| 7046180 | Analog-to-digital converter with range error detection A circuit includes a multiplexer, an analog-to-digital converter, and a processor that compares a sequence of digital outputs from the analog-to-digital converter to a sequence of normal ranges that correspond with the digital outputs in order to provide an error ou... | 05/16/2006 |
| 7032447 | Diaphragm gas meter In a gas meter, a measuring diaphragm is provided inside a measuring chamber, the measuring diaphragm is caused to reciprocate according to a gas pressure of gas flowing from a gas inflow port to the measuring chamber, and the reciprocation of the measuring diaphrag... | 04/25/2006 |
| 7018800 | Process device with quiescent current diagnostics A process device for use on an industrial process control system includes a quiescent current sensor configured to sense quiescent current draw of the process device. Diagnostic circuitry determines a diagnostic condition of the process device as a function of the s... | 03/28/2006 |
| 6970003 | Electronics board life prediction of microprocessor-based transmitters A field device includes circuitry to successively measure a parameter related to current drawn by electronics of the field device. The measurements are provided to a prediction engine which calculates a diagnostic output based upon the plurality of current-related m... | 11/29/2005 |
| 6944530 | System and method for air flow and EGR flow estimation An exhaust gas recirculation system directs exhaust gasses from an exhaust manifold to an intake manifold of an internal combustion engine. The exhaust gasses travel from the exhaust manifold, first passing through a flow control valve and then through a measuring o... | 09/13/2005 |
| 6931939 | Pressure transmitter A pressure transmitter for sensing a physical variable related to a process fluid of an industrial plant, includes: a main body, which comprises a containment enclosure and a base associated with the containment enclosure; a first connection element, which comprises... | 08/23/2005 |
| 6926821 | Water treatment device with volumetric and time monitoring features A totalization meter system for a water treatment device, the device having an inlet aperture and an outlet aperture, and a channel for channeling water between the inlet and outlet apertures. A flow reactive device is positioned in the channel and is exposed to the... | 08/09/2005 |
| 6925887 | Blast pressure gauge An apparatus for measuring pressure includes a cylindrical tube having an open end and a closed end; a piston disposed in the cylindrical tube at the open end; an accelerometer attached to a side of the piston that faces the closed end of the tube, the accelerometer... | 08/09/2005 |
| 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 |
| 6918303 | Bi-planar differential pressure transmitter with orthogonal process connections A pressure transmitter apparatus includes a unitary body with two, normally vertical pressure passageways communicating respectively between opposed pressure openings extending normally horizontally through the body portion. A transducer for generating a differentia... | 07/19/2005 |
| 6912919 | Restriction flowmeter A restriction flowmeter including a cylinder through whose interior a fluid to be measured flows and a pipe for forming a restriction structure penetrating the cylinder in a direction perpendicular to the central axis of the cylinder, the pipe having a diameter smal... | 07/05/2005 |
| 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 |
| 6898339 | Multiple mode pre-loadable fiber optic pressure and temperature sensor A multiple mode pre-loadable fiber optic pressure and temperature sensor includes a generally cylindrical structure having at least one compression element, a fiber optic having a Bragg grating in contact with one side of the compression element, a diaphragm in cont... | 05/24/2005 |
| 6848323 | Hydraulic actuator piston measurement apparatus and method A method and device for use with a hydraulic system is adapted to measure a position, velocity and/or acceleration of a piston of a hydraulic actuator based upon differential pressure measurement. The device of the present invention utilizes a differential pressure ... | 02/01/2005 |
| 6813963 | Fluid velocity transducer A transducer for measuring the relative velocity of movement of a body in a liquid or gaseous medium employs no reciprocating parts and functions by sensing the force applied to a diaphragm (6) die to its movement through the medium or the movement of the med... | 11/09/2004 |
| 6752020 | Device for measuring pressure, sound and vibration and method of analyzing flow on surfaces of structural parts In a method and apparatus for measuring pressure, sound and vibration, particularly for the flow analysis on missiles or airplanes, a sensor device which is used to sense pressure or sound waves, is linked to a structure of a structural part in order to measure forc... | 06/22/2004 |
| 6655219 | Load cell and roll-over alarming device for a crane To detect a low load of an outrigger with high accuracy and improve alarming accuracy of a roll-over alarming device, the roll-over alarming device for a crane includes a load cell 1 having a coil spring 5 provided with a strain gauge 4, and an upper load... | 12/02/2003 |
