Patents by Inventor Sigvard Johann Wahlin

Sigvard Johann Wahlin 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).

  • Ultrasonic fluid measurement probe with ultrasonically welded base cap
    Patent number: 10955279
    Abstract: An apparatus and method of measuring a level of fluid in a container and of enhancing reliability of an ultrasonic fluid measurement probe. A base comprises a transducer chamber, wherein the transducer chamber comprises a transducer chamber floor, a transducer chamber edge, and transducer chamber walls extending from the transducer chamber floor to the transducer chamber edge. An ultrasonic transducer is attached to the transducer chamber floor. A cap is welded to the transducer chamber edge such that the cap, along with the transducer chamber floor and the transducer chamber walls, encloses the transducer chamber to form an enclosed air space between the ultrasonic transducer and the cap.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: March 23, 2021
    Assignee: The Boeing Company
    Inventor: Sigvard Johann Wahlin
  • Ultrasonic fluid measurement calibration probe
    Patent number: 10801877
    Abstract: An apparatus and method of calibrating an ultrasonic fluid measurement system using an ultrasonic fluid measurement calibration probe. A base of the probe comprises an ultrasonic transducer. A tube extends from the base. A first calibration target is attached to the tube at a first distance from the ultrasonic transducer and extends into an interior of the tube. An orifice is formed in the tube. The orifice extends through the tube from an exterior of the tube to the interior of the tube and along the tube wherein an edge of the orifice is at the first distance from the ultrasonic transducer.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: October 13, 2020
    Assignee: The Boeing Company
    Inventor: Sigvard Johann Wahlin
  • ULTRASONIC FLUID MEASUREMENT CALIBRATION PROBE
    Publication number: 20190170564
    Abstract: An apparatus and method of calibrating an ultrasonic fluid measurement system using an ultrasonic fluid measurement calibration probe. A base of the probe comprises an ultrasonic transducer. A tube extends from the base. A first calibration target is attached to the tube at a first distance from the ultrasonic transducer and extends into an interior of the tube. An orifice is formed in the tube. The orifice extends through the tube from an exterior of the tube to the interior of the tube and along the tube wherein an edge of the orifice is at the first distance from the ultrasonic transducer.
    Type: Application
    Filed: December 1, 2017
    Publication date: June 6, 2019
    Inventor: Sigvard Johann Wahlin
  • ULTRASONIC FLUID MEASUREMENT PROBE WITH ULTRASONICALLY WELDED BASE CAP
    Publication number: 20190170559
    Abstract: An apparatus and method of measuring a level of fluid in a container and of enhancing reliability of an ultrasonic fluid measurement probe. A base comprises a transducer chamber, wherein the transducer chamber comprises a transducer chamber floor, a transducer chamber edge, and transducer chamber walls extending from the transducer chamber floor to the transducer chamber edge. An ultrasonic transducer is attached to the transducer chamber floor. A cap is welded to the transducer chamber edge such that the cap, along with the transducer chamber floor and the transducer chamber walls, encloses the transducer chamber to form an enclosed air space between the ultrasonic transducer and the cap.
    Type: Application
    Filed: December 6, 2017
    Publication date: June 6, 2019
    Inventor: Sigvard Johann Wahlin