Patents Assigned to Rosemount Inc.
  • Patent number: 11371867
    Abstract: A fluid flow obstruction device for a process fluid flow measurement device includes a first wall having a first side. A second wall having a proximate end is arranged at a proximate end of the first side of the first wall. The arrangement forms a first apex between the first wall and the second wall. At least one additional wall is arranged parallel to the second wall at a distance from the proximate end of the first side of the first wall. The arrangement of the at least one additional wall and the first wall forms a corresponding additional apex.
    Type: Grant
    Filed: November 16, 2020
    Date of Patent: June 28, 2022
    Assignee: ROSEMOUNT INC.
    Inventor: Nathaniel Kirk Kenyon
  • Patent number: 11371899
    Abstract: The present disclosure is provided with a measuring element (M) and a measuring device. The measuring element includes a base body, a diaphragm and a permeation resistant layer, the diaphragm is fixedly connected to the base body, with a sealed cavity being defined between the diaphragm and the base body. The permeation resistant layer is arranged on an inner side surface, facing the sealed cavity, of the diaphragm, and extended continuously on the inner side surface of the diaphragm at least beyond a connection region of the diaphragm with the base body. The measuring device includes the measuring element (M).
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: June 28, 2022
    Assignee: ROSEMOUNT INC.
    Inventors: Fang Chen, Baogang Li, Paul Fadell
  • Patent number: 11371902
    Abstract: A pressure transmitter includes a housing and a pressure sensor having an electrical characteristic that varies with applied pressure. The pressure sensor is configured to generate a sensor signal indicative of process fluid pressure. A transmitter isolation diaphragm is configured to couple to a process barrier seal to convey pressure to the pressure sensor. A flange is coupled to the transmitter isolation diaphragm. The flange includes at least one gas pathway extending inwardly from an outer diameter of the transmitter isolation diaphragm. Electronics are coupled to the pressure sensor to receive the sensor signal and to generate an output indicative of the pressure.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: June 28, 2022
    Assignee: Rosemount Inc.
    Inventors: Nathan R. Pepin, Michael A. Knopf, James Walters, III, David A. Andrew, David Cutter
  • Patent number: 11346554
    Abstract: A combustion analyzer configured to simultaneously detect the concentrations of oxygen, carbon monoxide and methane in a combustion process is provided. The combustion analyzer includes an oxygen sensor configured to detect the oxygen in the combustion process and generate a sensor signal indicative of the concentration of oxygen in the combustion process. The combustion analyzer further includes a dual carbon monoxide-methane sensor configured to operate at approximately 400° C. and provide a second sensor signal indicative of methane concentration and at approximately 300° C. to selectively provide a third sensor signal indicative of carbon monoxide concentration. The combustion analyzer finally includes a controller configured to receive the sensor signals, determine the concentration of oxygen, and generate a carbon monoxide concentration output and methane concentration output based on the dual carbon monoxide-methane sensor signals and the concentration of oxygen.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: May 31, 2022
    Assignee: Rosemount Inc.
    Inventors: Pavel Shuk, Chad M. McGuire, Philip Ostby
  • Patent number: 11320316
    Abstract: A process fluid temperature estimation system includes a mounting assembly, a sensor capsule, measurement circuitry, and a controller. The mounting assembly is configured to mount the process fluid temperature estimation system to an external surface of a process fluid conduit. The sensor capsule has an end that is configured to contact the external surface of the process fluid conduit to form an interface having a contact region and an air gap. The sensor capsule also has at least one temperature sensitive element disposed therein. The measurement circuitry is coupled to the sensor capsule and configured to detect an electrical characteristic of the at least one temperature sensitive element that varies with temperature and provide at least process fluid conduit skin temperature information. The controller is coupled to the measurement circuitry and is configured to obtain the process fluid conduit skin temperature information from the measurement circuitry and to obtain reference temperature information.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: May 3, 2022
    Assignee: Rosemount Inc.
    Inventors: Jason H. Rud, Aleksey A. Krivonogov, Yury N. Kuznetsov, Sait S. Garipov, Sergey A. Fomchenko, Allen J. Kassen, Kyle S Warren
  • Patent number: 11313747
    Abstract: A remote seal assembly for a process transmitter includes a seal body containing a cavity sealed by a diaphragm. The seal body configured to be mounted to a process element containing a process fluid such that a first side of the diaphragm is exposed to the process fluid. A capillary contains a fill fluid that is in fluid communication with the cavity and a second side of the diaphragm. A coupling has a capillary recess and two cavities separated by a second diaphragm. The capillary extends through the capillary recess and connects to the coupling such that the fill fluid in the capillary is in fluid communication with one of the two cavities and the second diaphragm. A thermally conductive element preferably extends continuously along the capillary from the seal body toward the coupling and into the capillary recess without contacting the coupling.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: April 26, 2022
    Assignee: ROSEMOUNT INC.
    Inventors: Michael James Hoffman, Paul Ryan Fadell, Scott Robert Thompson, Vincent Edward Cline
  • Patent number: 11313895
    Abstract: A sensor system for an electric power asset includes a sensor instrument coupleable to sensors associated with the electric power asset to receive sensor signals therefrom, and an antenna connection cable coupled to the sensor instrument. The antenna connection cable includes a cable sheath and a plurality of twisted pair signal carriers contained within the cable sheath to carry sensor signals received from the electric power asset. A first subset of the plurality of twisted pair signal carriers carry antenna signals and a second separate subset of the plurality of twisted pair signal carriers carry signals for partial discharge monitoring.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: April 26, 2022
    Assignee: ROSEMOUNT INC.
    Inventor: Jeffrey C. Andle
  • Patent number: 11293790
    Abstract: An industrial process field device includes a piezoelectric transducer, a sensor circuit, a test circuit, a controller and a communications circuit. The sensor circuit generates a sensor signal indicating a process variable based on a voltage across the piezoelectric transducer. The test circuit is configured to apply a voltage pulse having a pulse voltage to the piezoelectric transducer that induces a response signal, and capture peak positive and negative voltages of the response signal. The controller calculates a current condition value of the piezoelectric transducer based on the peak positive voltage, the peak negative voltage and the pulse voltage, and generates a diagnostic test result based on a comparison of the current condition value to a reference condition value corresponding to a properly operating piezoelectric transducer. The communications circuit communicates the process variable and the diagnostic test result to an external control unit over a process control loop.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: April 5, 2022
    Assignee: ROSEMOUNT INC.
    Inventor: Vladimir D. Bogdanov
  • Patent number: 11262771
    Abstract: A pressure capsule/header assembly for a process fluid pressure transmitter is provided. An isolator plug has an isolation diaphragm at a first end thereof and a second end spaced from the first end. The isolator plug has a fill fluid passageway fluidically coupling the first end to the second end. A header has a first end configured to carry a pressure sensor and a second end spaced from the first end. The header has at least one electrical interconnect extending from the first end to the second end. A biaxial support ring is disposed about an outer surface of the header. The biaxial support ring and the header define a tapered interference interface therebetween. The header is welded to the isolator plug at a first weld and the biaxial support ring is welded to the isolator plug at a location that is spaced from the second end of the header.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: March 1, 2022
    Assignee: Rosemount Inc.
    Inventors: Eric Petersen, Nicholas E. Meyer, David M. Strei
  • Patent number: 11255735
    Abstract: A sensor assembly with a sensing element sends a sensor signal from the sensing element to attached process transmitter over sensor connection wires. The sensor assembly has memory circuitry for storing information related to the sensor assembly and interface circuitry that provides for digital communication of the stored information with the attached process transmitter. This digital communication is sent over the sensor connection wires.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: February 22, 2022
    Assignee: ROSEMOUNT INC.
    Inventors: Loren Michael Engelstad, Douglas Wayne Arnston, Jason Harold Rud, Clarence Edward Holmstadt, Randy Kenneth Paschke, Sergey Viktorovich Asmolov, Yury Mickolaevich Kuznetsov
  • Patent number: 11248936
    Abstract: An industrial process transmitter includes a main housing, a sensor body, and a flange member. The main housing contains transmitter circuitry and includes a first threaded portion. The sensor body includes a process sensor and a second threaded portion in threaded engagement with the first threaded portion. One of the first and second threaded portions includes a threaded cylindrical projection, and the other includes a threaded cylindrical bore. The flange member is received within a groove of the projection. Movement of the sensor body relative to the housing along an axis of the bore is restricted to an axial distance through engagement between the flange and the first or second threaded portion that includes the threaded cylindrical bore, and engagement between the main housing and the sensor body. Rotation of the sensor body relative to the housing about the axis is limited by the axial distance.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: February 15, 2022
    Assignee: ROSEMOUNT INC.
    Inventor: Fang Chen
  • Patent number: 11248940
    Abstract: A process fluid flow system includes a first pipe skin sensor and a second pipe skin sensor. The first pipe skin sensor is disposed to measure an external temperature of a process fluid conduit at a first location on the process fluid conduit. The second pipe skin sensor is disposed to measure an external temperature of a process fluid conduit at a second location on the process fluid conduit. Measurement circuitry is coupled to the first and second pipe skin sensors. A controller is coupled to the measurement circuitry and is configured to identify a process fluid flow condition based on signals from the first and second pipe skin sensors and to output an indication of the process fluid flow condition.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: February 15, 2022
    Assignee: Rosemount Inc.
    Inventors: Jason H. Rud, Zachery A. Lewis
  • Patent number: 11243134
    Abstract: An industrial process differential pressure sensing device includes a housing having first and second isolation cavities that are respectively sealed by first and second diaphragms, a differential pressure sensor, a static pressure sensor, an eddy current displacement sensor, and a controller. The static pressure sensor is configured to output a static pressure signal that is based on a pressure of fill fluid in the first isolation cavity. The differential pressure sensor is configured to output a differential pressure signal that is indicative a pressure difference between the first and second isolation cavities. The eddy current displacement sensor is configured to output a position signal that is indicative of a position of the first isolation diaphragm relative to the housing. The controller is configured to detect a loss of a seal of the isolation cavity based on the position signal, the static pressure signal and the differential pressure signal.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: February 8, 2022
    Assignee: ROSEMOUNT INC.
    Inventors: John Paul Schulte, Eugene Korolev
  • Patent number: 11234125
    Abstract: A method for authenticating a user of a handheld field maintenance tool is provided. The method includes moving the handheld field maintenance tool into a proximity of a field device. The field device receives a primary key. The field device generates a secondary key and transmits the secondary key to a remote system. The remote system transmits the secondary key to the user of the handheld field maintenance tool. The field device receives the secondary key. The field device authenticates the user of the handheld field maintenance tool.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: January 25, 2022
    Assignee: Rosemount Inc.
    Inventor: Matthew M. Then
  • Patent number: 11226255
    Abstract: A process transmitter includes an isolation unit, a process sensor, a compensation circuit, and an output circuit. The isolation unit is configured to engage a process and includes a medium. The process sensor is configured to produce a process signal that is a function of a parameter of the process that is communicated through the medium. The compensation circuit is configured to compensate the process signal for a response time of the isolation unit, and output a compensated process signal. The output circuit is configured to produce a transmitter output as a function of the compensated process signal.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: January 18, 2022
    Assignee: ROSEMOUNT INC.
    Inventor: John Edward Rodeheffer
  • Patent number: 11226253
    Abstract: A process pressure transmitter includes transmitter electronics disposed within a housing coupled to a pressure sensor formed by a cell body defining an interior cavity. A deflectable diaphragm separates the interior cavity into a first cavity and a second cavity. The deflectable diaphragm includes a groove region located around a periphery of the deflectable diaphragm.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: January 18, 2022
    Assignee: ROSEMOUNT INC.
    Inventors: David Andrew Broden, Charles Ray Willcox, Brian Michael Affias, Jennifer Ann Blodgett
  • Patent number: 11226242
    Abstract: An industrial process temperature transmitter for measuring a temperature of a process medium includes a temperature sensing unit, a compensation circuit, an output circuit and a housing. The temperature sensing unit includes a process temperature sensor and a secondary temperature sensor. A temperature signal that is indicative of the temperature of the process medium is produced based on a process temperature signal output from the process temperature sensor and a secondary temperature signal output from the secondary temperature sensor. The compensation circuit compensates the temperature signal for a response time of the temperature measurement to a change in the temperature of the process medium, and outputs a compensated temperature signal. The output circuit produces a temperature output as a function of the compensated temperature signal. The housing is attached to an exterior of the process vessel and contains the secondary temperature sensor.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: January 18, 2022
    Assignee: ROSEMOUNT INC.
    Inventors: Jason Harold Rud, Steve Richard Trimble
  • Patent number: 11209296
    Abstract: A system for non-intrusively measuring process fluid pressure within a process fluid conduit is provided. The system includes a measurement bracket configured to couple to an external surface of the process fluid conduit. The measurement bracket generates a variable gap based on deformation of the process fluid conduit in response to process fluid pressure therein. A gap measurement system is coupled to the measurement bracket and provides an electrical signal based on a measurement of the variable gap. A controller is coupled to the gap measurement system and is configured to calculate and provide a process fluid pressure output based on the electrical signal and information relative to the process fluid conduit.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: December 28, 2021
    Assignee: Rosemount Inc.
    Inventor: Charles R. Willcox
  • Patent number: 11206696
    Abstract: A field device includes a process communication module, a graphical display and a controller. The process communication module is configured to communicate in accordance with a process industry standard communication protocol. The controller is operably coupled to the process communication module and the graphical display and is configured to responsively cause the graphical display to generate a machine-readable display output.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: December 21, 2021
    Assignee: Rosemount Inc.
    Inventors: Bret J. Shiers, Jared E. Sweet, Ross C. Lamothe
  • Patent number: 11204340
    Abstract: A heating assembly includes a base plate. The heating assembly also includes a heating component coupled to the base plate configured to heat an enclosure of the heating assembly and a fan assembly coupled to the base plate configured to circulate the heated air within the enclosure of the heating assembly.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: December 21, 2021
    Assignee: Rosemount Inc.
    Inventor: Steven S. Black