Patents by Inventor Bruce C. Grover

Bruce C. Grover 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).

  • Radio frequency excited ring laser gyro
    Patent number: 5442441
    Abstract: Apparatus for stabilizing the position of the exciting electric component of a radio frequency electromagnetic field within the excited plasma of a ring laser, using two adjacent quarterwave coils, and driving the coils from a radio frequency source to ensure that the adjacent open ends of the two coils have electric field components that produce a steep gradient of electric field within the gas plasma of the ring laser.
    Type: Grant
    Filed: October 15, 1991
    Date of Patent: August 15, 1995
    Assignee: Litton Systems, Inc.
    Inventors: Bruce C. Grover, Tae W. Hahn
  • Nuclear magnetic resonance gyro scope
    Patent number: 4430616
    Abstract: A nuclear magnetic resonance gyro using two nuclear magnetic resonance gases, preferably xenon 129 and xenon 131, together with two alkaline metal vapors, preferably rubidium, potassium or cesium, one of the two alkaline metal vapors being pumped by light which has the wavelength of that alkaline metal vapor, and the other alkaline vapor being illuminated by light which has the wavelength of that other alkaline vapor.
    Type: Grant
    Filed: January 29, 1982
    Date of Patent: February 7, 1984
    Assignee: Litton Systems, Inc.
    Inventor: Bruce C. Grover
  • Nuclear magnetic resonance gyro
    Patent number: 4157495
    Abstract: A nuclear magnetic resonance gyroscope is disclosed that operates on the principle of sensing angular rotation rate as a shift in the Larmor frequency of one or more nuclear species that possess nuclear magnetic moments.
    Type: Grant
    Filed: October 14, 1977
    Date of Patent: June 5, 1979
    Assignee: Litton Systems, Inc.
    Inventors: Bruce C. Grover, Edward Kanegsberg, John G. Mark, Roger L. Meyer