Patents by Inventor Alvis Farris

Alvis Farris 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).

  • Tiltmeter leveling mechanism
    Patent number: 6370784
    Abstract: A tiltmeter device having a pair of orthogonally disposed tilt sensors that are levelable within an inner housing containing the sensors. An outer housing can be rotated to level at least one of the sensor pair while the inner housing can be rotated to level the other sensor of the pair. The sensors are typically rotated up to about plus or minus 100 degrees. The device is effective for measuring tilts in a wide range of angles of inclination of wells and can be employed to level a platform containing a third sensor.
    Type: Grant
    Filed: November 1, 1999
    Date of Patent: April 16, 2002
    Assignee: The Regents of the University of California
    Inventors: Steven L. Hunter, Carl O. Boro, Alvis Farris