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| Number | Title | Issue Date |
| 7597009 | Airflow sensor apparatus A sensor apparatus for measuring a pressure of an airflow in a duct. The sensor apparatus includes a first sensor portion that includes a first end and a second end, and that is without ports in communication with the airflow. The sensor also includes a second senso... | 10/06/2009 |
| 7357572 | Total air temperature probe having improved deicing heater error performance A total air temperature probe for measuring total air temperature includes a head having an airflow inlet, a main airflow exit, and a flow separation bend positioned between the airflow inlet and the main airflow exit. A plurality of bleed holes are in the flow sepa... | 04/15/2008 |
| 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 |
| 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 |
| 7284448 | Device and method for passively measuring fluid and target chemical mass fluxes in natural and constructed non-porous fluid flow system An improved method and apparatus for simultaneously monitoring the fluid flux and the target chemical mass fluxes in fluid flow systems is provided comprising the use of a body or shell that is inserted into the flow field. Inside or outside this body is a bundle of... | 10/23/2007 |
| 7284450 | Averaging orifice primary flow element A process flow device that includes a self-averaging orifice plate type of primary flow element for measuring, by a differential pressure process, the volumetric rate of fluid flow at a point in a fluid carrying conduit where the velocity profile of the fluid is asy... | 10/23/2007 |
| 7278320 | Omni-directional pressure pickup probe A pressure pickup probe assembly includes a probe housing, a plurality of openings, and a pickup probe. The probe housing is configured to be mounted within, and extend at least substantially across, a flow passage. The probe housing further includes at least an inn... | 10/09/2007 |
| 7258000 | Scanner and method for detecting pressures on a member A scanner and associated method for detecting pressures on a test member are provided. The scanner can be provided with an electronic module that includes an analog-digital (A/D) converter associated with each channel of the scanner and configured to provide digital... | 08/21/2007 |
| 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 |
| 7243556 | Airflow sensor An airflow sensor for use in a conduit. The sensor comprises stacked first, second and third portions positioned, in use, in the conduit to define a hub and a plurality of tubes. The hub is centrally disposed in the conduit and has first and second interior chambers... | 07/17/2007 |
| 7201067 | System and method for determining flow characteristics A fluid flow probe including: first, second and third pressure sensors; a first port for communicating a first pressure to the first pressure sensor; a second port for communicating a second pressure to the second pressure sensor, the second port being substantially... | 04/10/2007 |
| 7194920 | Sensor probe and pipeline construction and method A sensor and carrier device are provided in combination with a pipeline for either placing a sensor element within the flow stream of the pipeline or a device to divert flow outside of the pipeline to measure a parameter of the conditions within the pipeline or of t... | 03/27/2007 |
| 7159473 | Internal tube support for flow elements providing for tube expansion within the flow element shell A tube mounting assembly for total traverse or static traverse sensing tubes is provided for use with Pitot tube devices where the tubes are allowed to expand and contract independent of the flow element shell. A female threaded pipe cap is tack welded or otherwise ... | 01/09/2007 |
| 7114387 | Pressure distribution measuring system A measuring segment is integrally formed in a wing model. A plurality of thin membranes are formed on a surface of the measuring segment at predetermined intervals in a cord direction with a distortion gauge fixed to a back face of each of the plurality of thin memb... | 10/03/2006 |
| 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 |
| 7073386 | Multi-bore pressure sensing probe A pressure sensing probe having a probe body defining at least two bores communicating with respective bore entrance openings and bore exit openings therein for receiving a fluid flow into the bore entrance openings and through the bores. The bore entrance openings ... | 07/11/2006 |
| 7070324 | Method and device for system and/or process monitoring The invention relates to a method and to a device for system- and/or process-monitoring in connection with a measurement apparatus that determines/monitors at least one process parameter of a medium. The method and device enable statements to be made regarding the p... | 07/04/2006 |
| 7059536 | Air circulation system An air circulation system for use with or without ductwork having an outside air stream and a return air stream includes a controller and a return damper apparatus operatively connecting the return air stream to the controlled environment. The air circulation system... | 06/13/2006 |
| 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 |
| 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 |
| 7010459 | Process device diagnostics using process variable sensor signal A diagnostic device for use in a process control system receives a sensor signal related to a process variable of a process sensed by a process variable sensor. A signal preprocessor provides a sensor power signal output as a function of a frequency distribution of ... | 03/07/2006 |
| 6959610 | Manual purge system for instrumentation flow element tubing An improved manual purge system for periodically cleaning pressure sensing flow element tubing is provided that is a complete self-contained system for allowing manual determination and initiation of flow element purging. Additionally, the system can be easily upgra... | 11/01/2005 |
| 6939411 | Method and tool for cleaning a watercraft speedometer A method and tool for cleaning a watercraft speedometer are disclosed. The tool comprises a body, an extraction tip extending therefrom, and at least one edge on the extraction tip that can catch matter in the cavity. The extraction tip is attached to the body and i... | 09/06/2005 |
| 6935156 | Characterization of process pressure sensor A pressure sensor of a process device, is characterized by applying a plurality of pressures to the process sensor. Outputs of the plurality of pressures are received. A compensation relationship is determined based upon the pressure sensor output. The characterizat... | 08/30/2005 |
| 6928884 | Method and apparatus for measurement of flow rate A bi-directional, clean or grey medium, wide temperature range, low intrusion, low turbulence, mass flow meter extends multiple pressure sensing tubes, each containing multiple pressure sensing ports, into a bounded path a distance no more than one half the diameter... | 08/16/2005 |
| 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 |
| 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 |
| 6820501 | Differential static pressure measuring and activating device and control mechanism A differential static pressure measuring or activating device measuring fluid flow through a duct including two pitot tubes each including a proximal end connected to a valve, a distal end portion located in the duct extending generally parallel to each other and pe... | 11/23/2004 |
| 6772627 | Flow vector analyzer for flow bench Apparatus and methods for airflow testing, especially for air testing of gas turbine components on an airflow test bench. Various embodiments of the present invention include the use of a measurement section downstream of the component being tested. The measurement ... | 08/10/2004 |
| 6634242 | Apparatus for measuring respiratory gas flow by means of a disposable respiratory tube Disclosed is an apparatus for measuring respiratory gas flow, which provides a high accuracy in measurement of the respiratory gas flow and reduces the manufacturing cost of the apparatus, in comparison with the conventional disposable apparatus for measu... | 10/21/2003 |
| 6591696 | Integral electric pressure probe for aircraft An electric pressure probe for an aircraft comprises: a pitot tube assembly for collecting pneumatically air pressure in the vicinity of the assembly; a strut including one end mountable to a surface of the aircraft, the pitot tube assembly being coupled ... | 07/15/2003 |
| 6584830 | Viscosity measuring apparatus Apparatus for measuring the viscosity of a Newtonian fluid, includes a tubular housing which defines an internal cavity; a fluid restriction structure disposed in a first portion of the cavity; and a pressure measuring device disposed to measure the diffe... | 07/01/2003 |
| 6564651 | Modular high-temperature gas flow sensing element for use with a cyclone furnace air flow measuring system A high temperature gas flow sensing element module, using Pitot tube technology, for use within a fluid conduit consisting of a housing having an inlet, an outlet, and forming a hollow interior cross-sectional area. Individually, the gas flow sensing elem... | 05/20/2003 |
| 6532829 | Fluid flow measurement A method and apparatus are provided for determining an estimate of flow stability, in addition to providing a measurement of flow velocity distribution. To this end, monitoring is provided of the changes over time of flow measurements from a plurality of ... | 03/18/2003 |
| 6519960 | Air conditioner A control valve is located in a variable displacement compressor that is installed in a refrigerant circuit. The control valve operates such that the pressure difference between first and second pressure monitoring points in the refrigerant circuit seeks ... | 02/18/2003 |
| 6487918 | Airflow sensor for averaging total pressure A flow sensor for compressible fluid comprising a central hub having a total pressure chamber and a static pressure chamber disposed therein. A pair of wings extend radially outward from opposing sides of the total pressure chamber. The wings include a pl... | 12/03/2002 |
| 6450043 | Probe for monitoring intake air volume and method A probe for use in monitoring intake air volume in an air handling system operates in a turbulent stream found at locations near an intake for outside air. The probe has a very large transverse peripheral profile and includes a front face having a very la... | 09/17/2002 |
| 6386049 | Pump flow test system A pump flow test system for accurately measuring the aggregate fluid flow from all pumps of a fire truck. The inventive device includes a reservoir structure for storing a volume of fluid, an intake manifold having a plurality of intake inlets extending i... | 05/14/2002 |
| 6289745 | High temperature insertion type flow element and mounting extension Disclosed is a high temperature insertion type flow element and mounting extension assembly for a gas flow measuring device. Designed to overcome the drawbacks associated with compensating for differential thermal expansion between the element and the duc... | 09/18/2001 |
