Patents by Inventor Bennett Leon Louwagie

Bennett Leon Louwagie has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process variable sensor testing
    Patent number: 11181403
    Abstract: A process transmitter includes a process variable sensor, a test circuit, a switch and a controller. The process variable sensor includes a sensor output that is indicative of a sensed process variable. The test circuit is configured to detect a condition of the process variable sensor. The switch is configured to selectively connect the test circuit to the process variable sensor and disconnect the test circuit from the process variable sensor. The controller is configured to obtain a measurement of the process variable, control the switch, detect a condition of the process variable sensor by comparing the sensor output when the test circuit is connected to the process variable sensor to the sensor output when the test circuit is disconnected from the process variable sensor, and communicate the condition in the measurement to an external control unit.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: November 23, 2021
    Assignee: ROSEMOUNT INC.
    Inventors: Bennett Leon Louwagie, Nicholas Aaron Wienhold
  • PROCESS VARIABLE SENSOR TESTING
    Publication number: 20210088365
    Abstract: A process transmitter includes a process variable sensor, a test circuit, a switch and a controller. The process variable sensor includes a sensor output that is indicative of a sensed process variable. The test circuit is configured to detect a condition of the process variable sensor. The switch is configured to selectively connect the test circuit to the process variable sensor and disconnect the test circuit from the process variable sensor. The controller is configured to obtain a measurement of the process variable, control the switch, detect a condition of the process variable sensor by comparing the sensor output when the test circuit is connected to the process variable sensor to the sensor output when the test circuit is disconnected from the process variable sensor, and communicate the condition in the measurement to an external control unit.
    Type: Application
    Filed: September 24, 2019
    Publication date: March 25, 2021
    Inventors: Bennett Leon Louwagie, Nicholas Aaron Wienhold