Patents by Inventor Ronald F. Larsen

Ronald F. Larsen 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).

  • Gage for measuring decrease in dimension of test specimen in tensile test
    Patent number: 4232446
    Abstract: A test gage for measuring the decrease in one dimension of a test specimen having a frame member with a sliding member positioned within the frame member. The test apparatus is adapted to receive a test specimen between the sliding member and one side of the frame member. The sliding member is held in contact with the test specimen by a spring. A proximity measuring device senses the position of the sliding member with respect to the frame member and provides an output signal proportional to displacement. Elastic bands are used to support the test gage on a tensile test machine which is used to apply a stress to the test specimen.
    Type: Grant
    Filed: March 30, 1979
    Date of Patent: November 11, 1980
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Don F. Woods, Ronald F. Larsen