Patents by Inventor Llewelynn R. Galace

Llewelynn R. Galace 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).

  • Systems and methods for pressure measurement
    Patent number: 10962432
    Abstract: Apparatus, systems, and methods of measuring relative pressure based on the displacement of a Cartesian diver are provided. Within the system, various designs of divers, as well as a variety of measurement methods implementing such systems and apparatus, are illustrated. The systems and methods described herein are directed to precise pressure measurements traceable to the SI through the vertical displacement of a ludion within a two fluid system. The system is selectively optimized to ensure the buoyancy and mass of the ludion as well as the density of the gases and fluids involved are known and controlled.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: March 30, 2021
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Aaron Wiest, Dylan R. Switzer, Craig MacDougall, Llewelynn R. Galace
  • SYSTEMS AND METHODS FOR PRESSURE MEASUREMENT
    Publication number: 20200284678
    Abstract: Apparatus, systems, and methods of measuring relative pressure based on the displacement of a Cartesian diver are provided. Within the system, various designs of divers, as well as a variety of measurement methods implementing such systems and apparatus, are illustrated. The systems and methods described herein are directed to precise pressure measurements traceable to the SI through the vertical displacement of a ludion within a two fluid system. The system is selectively optimized to ensure the buoyancy and mass of the ludion as well as the density of the gases and fluids involved are known and controlled.
    Type: Application
    Filed: August 9, 2018
    Publication date: September 10, 2020
    Applicant: The United States of America, as represented by the Secretary of the Navy
    Inventors: Aaron Wiest, Dylan R. Switzer, Craig McDougall, Llewelynn R. Galace