Patents by Inventor J. Laurence Powell

J. Laurence Powell 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).

  • Vibrometer
    Patent number: 4279159
    Abstract: A vibrometer comprising a reed unit adjustably clamped in position within a case. The reed unit includes three vibratory reed portions projecting from a base. Each of the reeds will vibrate at its natural frequency in response to vibration at a preselected vehicle speed, and adjustment of the reed unit according to tire size maintains the speed at which the reeds will vibrate substantially constant.
    Type: Grant
    Filed: July 16, 1979
    Date of Patent: July 21, 1981
    Inventors: J. Laurence Powell, Richard A. Powell