Patents by Inventor Marius Catalin Catrina

Marius Catalin Catrina 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).

  • Acoustic transducer arrangement including respective transducer set for each edge of a notational regular polygon
    Patent number: 11422015
    Abstract: An arrangement of acoustic transducers for a flow meter. The flow meter is for measuring the rate at which fluid is flowing. The arrangement includes a respective transducer set for each edge of a notional regular polygon. The transducer sets are associated with a tubular cavity for carrying the fluid. Each of the transducer sets respectively includes two acoustic transducers oriented to define an acoustic path lying in a measurement plane of the respective set, and another two acoustic transducers oriented to define another acoustic path lying in the measurement plane of the respective set. The transducers sets are positioned so that, in a cross-section normal to the tubular cavity, the measurement plane of each respective transducer set is coincident with a respective edge of the notional regular polygon.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: August 23, 2022
    Assignee: RUBICON RESEARCH PTY LTD
    Inventors: David John Aughton, Gordon John Bish, Craig Joseph Bayliss, Marius Catalin Catrina
  • FLOW MEASUREMENT
    Publication number: 20190368908
    Abstract: An arrangement of acoustic transducers for a flow meter. The flow meter is for measuring the rate at which fluid is flowing. The arrangement includes a respective transducer set for each edge of a notional regular polygon. The transducer sets are associated with a tubular cavity for carrying the fluid. Each of the transducer sets respectively includes two acoustic transducers oriented to define an acoustic path lying in a measurement plane of the respective set, and another two acoustic transducers oriented to define another acoustic path lying in the measurement plane of the respective set. The transducers sets are positioned so that, in a cross-section normal to the tubular cavity, the measurement plane of each respective transducer set is coincident with a respective edge of the notional regular polygon.
    Type: Application
    Filed: January 17, 2018
    Publication date: December 5, 2019
    Inventors: David John Aughton, Gordon John Bish, Craig Joseph Bayliss, Marius Catalin Catrina
  • Ultrasonic transducer support
    Patent number: D910188
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: February 9, 2021
    Assignee: RUBICON RESEARCH PTY LTD
    Inventors: Peter Murray, Marius Catalin Catrina, David John Aughton