| Patent Number |
Title Of Patent |
Date Issued |
| 7421531 |
Isolating system that couples fieldbus data to a network |
September 2, 2008 |
| A system couples fieldbus data from a fieldbus line to a network line. The system includes a data format converter that converts the data to USB data. A coupler that includes a first insulating barrier is coupled in cascade with the converter. A host receives the USB data. The host has a |
| 7421258 |
Compact temperature transmitter with improved lead connections |
September 2, 2008 |
| A compact industrial process transmitter is provided having an electronics module that includes a top surface with a plurality of lead attachment points thereon. At least one of the lead attachment points disposed on the top surface of the compact temperature transmitter electronics modu |
| 7415886 |
Pressure sensor with deflectable diaphragm |
August 26, 2008 |
| A pressure sensor for sensing a pressure of a process fluid includes a sensor body having a cavity formed therein. A deflectable diaphragm is positioned in the cavity and deflects in response to a pressure applied to the cavity. An electrode on the diaphragm forms a variable capacitor |
| 7412893 |
Redundant mechanical and electronic remote seal system |
August 19, 2008 |
| A redundant pressure transmitter for redundantly measuring pressure of a process fluid comprises a transmitter housing, transmitter circuitry, a remote seal assembly including a first pressure sensor, and a second pressure sensor positioned in the transmitter housing. The remote seal |
| 7409867 |
Pressure sensor using light source |
August 12, 2008 |
| A pressure sensor includes a structure that deforms in response to an applied pressure. A light source is directed at the structure. This provides a reflection from the structure. A sensor is arranged to sense the reflection and provide an output related to the applied pressure. |
| 7401522 |
Pressure sensor using compressible sensor body |
July 22, 2008 |
| A pressure sensor including a deformable sensor body formed of a compressible material. A deformation sensor is embedded in the deformable sensor body and has an electrical property which changes in response to deformation of the deformable sensor body. Electrical connections which e |
| 7385503 |
Self powered son device network |
June 10, 2008 |
| A network includes a plurality of wirelessly interconnected self-organizing network (SON) devices for relaying signals in a self-organizing network and a field device for originating output signals. The sensor is configured to transmit the output signals to at least one of the SON de |
| 7379792 |
Pressure transmitter with acoustic pressure sensor |
May 27, 2008 |
| A transmitter configured to measure a process variable of an industrial process, includes a pressure sensor configured to couple to a pressure of a fluid. An acoustic detector receives an acoustic signal from the fluid. Measurement circuitry coupled to the pressure sensor and the acousti |
| 7377176 |
Nano-particle modified fill fluid for pressure transmitters |
May 27, 2008 |
| A pressure transmitter for measuring a pressure of a process fluid includes a pressure sensor, a hydraulic relay system and a pressure sensor fill fluid. The pressure sensor senses the pressure of the process fluid, and the hydraulic relay system provides a communication channel betw |
| 7377174 |
Capillary weld extension with thermal isolation |
May 27, 2008 |
| A remote seal assembly includes a seal body and an extension. The seal body defines a cavity with a diaphragm that seals the cavity from a process fluid. The extension is connected with the seal body on a first end and is configured for connection to a capillary tube on a second end. |
| 7373831 |
High temperature pressure transmitter assembly |
May 20, 2008 |
| A pressure transmitter assembly for measuring a pressure of a process fluid includes an isolation diaphragm assembly configured to couple to a process fluid. A pressure sensor is coupled to the isolation diaphragm assembly and is configured to sense a pressure. An isolation diaphragm |
| 7353119 |
Reduced noise sensitivity in magnetic flowmeter |
April 1, 2008 |
| A magnetic flowmeter for measuring flow of a process fluid includes a coil configured to apply a magnetic field to the process fluid. Electrodes are arranged to sense a fluid voltage signal related to the applied magnetic field and fluid flow. An analog to digital converter provides a di |
| 7349872 |
Method for comparing and selecting process control apparatus |
March 25, 2008 |
| A method for comparing and selecting process control apparatus is disclosed. The method employs software, executed on a stand-alone computer device, or accessible through the web, to retrieve data specific to a given process control environment, and calculate the performance characte |
| 7347099 |
Pressure transducer with external heater |
March 25, 2008 |
| An improved pressure transducer is disclosed. The transducer includes a connector, an enclosure, a sensor portion, and an external heater disposed to heat the sensor portion. In some aspects, the sensor portion includes a sensor constructed from a brittle material and does not employ |
| 7334484 |
Line pressure measurement using differential pressure sensor |
February 26, 2008 |
| 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 pressures. A first primary |
| 7330695 |
Bus powered wireless transmitter |
February 12, 2008 |
| A process control system utilizes wireless transceivers to divorce the field devices from traditional wired network topologies. By providing field devices with wireless transceivers and shared wireless transceivers for adapting wired field devices, the field device network may be adapted |
| 7330271 |
Electromagnetic resonant sensor with dielectric body and variable gap cavity |
February 12, 2008 |
| An electromagnetic resonant sensor has a dielectric sensor body through which electromagnetic wave energy is propagated. The sensor body has a cavity, with surfaces facing one another to define a gap that varies as a function of a parameter to be measured. The resonant frequency of an |
| 7321846 |
Two-wire process control loop diagnostics |
January 22, 2008 |
| 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 process control loop |
| 7308830 |
Pressure sensor fault detection |
December 18, 2007 |
| A diagnostic system for a pressure sensor having a cavity configured to receive on applied pressure is provided. The cavity has a first and a second wall. A deflectable diaphragm is positioned in the cavity and configured to form a first and a second capacitance with the first wall a |
| 7295131 |
Diagnostic system for detecting rupture or thinning of diaphragms |
November 13, 2007 |
| A diaphragm diagnostic system for use in an industrial field device has a diaphragm and a diagnostic feature. The diaphragm is configured to couple the field device to a process fluid and has a plurality of layers. A first layer of the plurality of layers is exposed to process fluid of a |
| 7290452 |
Remote process seal with improved stability in demanding applications |
November 6, 2007 |
| A remote process seal system is provided. The seal system includes at least one remote process seal assembly coupled to a process pressure transmitter via a coupling filled with an incompressible fluid. The incompressible fluid is contacted by at least one getter to reduce instabilit |
| 7290450 |
Process diagnostics |
November 6, 2007 |
| 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 flowmeter, and in one |
| 7287432 |
Process transmitter with overpressure vent |
October 30, 2007 |
| An overpressure vent in a transmitter housing of a process transmitter. The transmitter is configured for coupling to an industrial process and measuring a process variable. The transmitter includes an enclosure having a cavity formed therein. A process coupling is configured to coup |
| 7280926 |
Reduced noise sensitivity in magnetic flowmeter |
October 9, 2007 |
| A magnetic flowmeter for measuring flow of a process fluid includes a coil configured to apply a magnetic field to the process fluid. Electrodes are arranged to sense a fluid voltage signal related to the applied magnetic field and fluid flow. An analog to digital converter provides a di |
| 7280048 |
Process control loop current verification |
October 9, 2007 |
| A process device is configured for coupling to a two wire process control loop. Loop current output circuitry is configured to apply an output current to the two wire process control loop. Loop current verification circuitry is coupled to the two wire process control loop and configured |
| 7278293 |
Submersible probe |
October 9, 2007 |
| A probe for deployment in a fluid measures produces an output representative of a parameter associated with the fluid. The probe includes a density control system to control a density of the probe and a locating system to track a location of probe in the fluid. |
| 7262693 |
Process field device with radio frequency communication |
August 28, 2007 |
| A field device for use in an industrial process control or monitoring system includes terminals configured to connect to a two-wire process control loop. The loop carries data and provides power to the field device. RF circuitry in the field device is provided for radio frequency com |
| 7258024 |
Simplified fluid property measurement |
August 21, 2007 |
| A process fluid measurement system provides a first measurement relative to process fluid flowing in a pipe. An additional measurement of process fluid flow velocity in the pipe is combined with the first measurement to provide a simplified indication of mass fluid flow and/or density or |
| 7258021 |
Process transmitter isolation assembly |
August 21, 2007 |
| An isolation assembly for connection to a process transmitter and for mitigating high temperature effects of a process fluid includes a process coupling face having an isolation diaphragm configured to contact process fluid. A transmitter coupling has a pressure coupling configured to |
| 7258017 |
Industrial process pressure transmitter with field repairable remote seals |
August 21, 2007 |
| A pressure measurement system includes a pressure transmitter and a remote seal assembly, and a capillary tube that connects a housing of the remote seal with a housing of the pressure transmitter utilizing at least one negligible-leakage quick connect coupling. |
| 7255012 |
Process fluid flow device with variable orifice |
August 14, 2007 |
| A process device providing total fluid flow control is provided. The device includes a closure mechanism disposed in a flow conduit. The closure mechanism, which is preferably an iris-type diaphragm, provides a variable internal diameter. The device includes a differential pressure s |
| 7255002 |
Tank seal for guided wave radar level measurement |
August 14, 2007 |
| A microwave level gauge for measuring a level of a process material in a tank includes a ceramic seal and a microwave conductor. The ceramic seal is disposed adjacent to an opening in the tank and adapted to isolate circuitry from the process material. The microwave conductor is elec |
| 7254518 |
Pressure transmitter with diagnostics |
August 7, 2007 |
| 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 sensed pressure minus a mo |
| 7246194 |
Interface module for use with a fieldbus device network and with internet and non-internet based |
July 17, 2007 |
| An interface module is operatively connected to a Fieldbus process control network and to at least one non-Fieldbus process control network to facilitate the exchange of process control information between the networks. The interface module stores a database in which the process cont |
| 7246193 |
Interface module for use with a Modbus device network and a Fieldbus device network |
July 17, 2007 |
| An interface module is operatively coupled to a Fieldbus process control network and a Modbus process control network to facilitate the exchange of process control information between the networks. The interface module stores a register map database in which the process control parameter |
| 7240561 |
Process adapter |
July 10, 2007 |
| A pressure transducer for clean environments is disclosed. The pressure transducer includes a process coupler, a sensor module, a shield and electronics. The process coupler is configured to couple to a source of process media at a process inlet. The sensor module is coupled to the p |
| 7228186 |
Field-mounted process device with programmable digital/analog interface |
June 5, 2007 |
| Embodiments of the present invention generally provide a field-mountable process device that receives digital information from one or more process devices, and provides an associated analog output. Embodiments of the present invention include providing a wireless interface to the fie |
| 7222049 |
User-viewable relative diagnostic output |
May 22, 2007 |
| A transmitter provides a transmitter output representative of a process variable associated with a process. The transmitter receives a sensor signal representative of a process variable from a sensor. The transmitter output based on the sensor signal is provided. The transmitter also |
| 7221988 |
Creation and display of indices within a process plant |
May 22, 2007 |
| A process control system uses an asset utilization expert to collect data or information pertaining to the assets of a process plant from various sources or functional areas of the plant including, for example, the process control functional areas, the maintenance functional areas and |
| 7208735 |
Process field device with infrared sensors |
April 24, 2007 |
| Infrared radiation from a plurality of locations associated with a process is measured by a field device, which includes a plurality of input channels, a plurality of IR sensors, and a data processor. The infrared radiation from the locations associated with the process is received by |
| 7197225 |
Variable optical attenuator |
March 27, 2007 |
| A variable optical attenuator has a first and second waveguides that are optically coupled together. At least one of the waveguides has a movable cantilever portion that is movable relative to the other to control attenuation of an optical signal traveling between the two. Preferably, |
| 7190053 |
Field device incorporating circuit card assembly as environmental and EMI/RFI shield |
March 13, 2007 |
| A field hardened industrial device is described with a housing of the device having electrically conductive walls surrounding a cavity with an open end. An electronics assembly is adapted to fit within the cavity. The device includes a circuit card assembly, which is a multi-layered |
| 7187158 |
Process device with switching power supply |
March 6, 2007 |
| A process field device for coupling to a two wire process control loop includes a field device circuitry and a switching regulator to power the circuitry. A series regulator provides a regulated supply voltage to the switching regulator. A noise filter reduces the amount of noise from th |
| 7177505 |
MEMS-based actuator devices using electrets |
February 13, 2007 |
| Electrets are used in a variety of MEMS-based actuator devices. The electret is able to store electrical charge for a long time with negligible charge leakage. Therefore, when an electret is incorporated into a MEMS device that requires actuation, the device can be initially biased t |
| 7164355 |
Process transmitter with a plurality of operating modes |
January 16, 2007 |
| 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 related to an operational ra |
| 7134354 |
Display for process transmitter |
November 14, 2006 |
| A transmitter for use in a process control system for monitoring an industrial process includes a housing having a top and a bottom and a height extending therebetween. A parallelogram display is mounted to the housing. Sides of the parallelogram display are arranged at angles relati |
| 7124641 |
Capacitive pressure transmitter |
October 24, 2006 |
| A capacitive pressure transmitter is provided. In one aspect, the transmitter includes a capacitive pressure sensor coupled directly to the measured media without any intervening fluid isolation. A filter is preferably used to keep particulates from reaching the measuring diaphragm. |
| 7117745 |
Process seal for process control transmitter |
October 10, 2006 |
| A process control instrument for coupling to a process is attachable to a metal flange. The flange has a first passageway adapted to be filled with process fluid. The process control instrument includes a body having an opening adjacent to the first passageway for receiving process fluid |
| 7115118 |
Implantable pressure-activated micro-valve |
October 3, 2006 |
| An implantable pressure-activated microvalve is disclosed. The valve includes a chamber that can be coupled to an external reservoir. A deflectable diaphragm is fluidically coupled to the chamber and arranged such that pressure of an in vivo fluid will bear against the deflectable di |
| 7109883 |
Low power physical layer for a bus in an industrial transmitter |
September 19, 2006 |
| A process variable transmitter connects a serial bus to an accessory load. A supply limiter circuit provides a first supply current limit and provides a stored energy output. A recessive driver circuit draws a drive current from the stored energy output and couples the drive current to |
