Patents by Inventor Cary Lee Cover

Cary Lee Cover 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).

  • Methods of controlling thrust in a rocket motor
    Patent number: 8539751
    Abstract: A propulsion thrust control system and method for controlling thrust in a rocket motor includes configuring valves of an energized rocket motor to an initial total valve area according to a total thrust command. The total thrust command is converted into a commanded propellant mass flow discharge rate. A varying total valve area is computed from an error between the commanded propellant mass flow discharge rate and a calculated propellant mass flow discharge rate. The valves are reconfigured according to a distribution of the varying total valve area. The propulsion system includes a pressure vessel with valves and a controller for regulating the valve area according to a propellant mass flow discharge rate from the pressure vessel.
    Type: Grant
    Filed: April 14, 2010
    Date of Patent: September 24, 2013
    Assignee: Alliant Techsystems Inc.
    Inventors: Cary Lee Cover, Sean Scott Stroud, Michael Joseph Piovoso, Timothy James Kelly
  • METHODS OF CONTROLLING THRUST IN A ROCKET MOTOR
    Publication number: 20100192539
    Abstract: A propulsion thrust control system and method for controlling thrust in a rocket motor includes configuring valves of an energized rocket motor to an initial total valve area according to a total thrust command. The total thrust command is converted into a commanded propellant mass flow discharge rate. A varying total valve area is computed from an error between the commanded propellant mass flow discharge rate and a calculated propellant mass flow discharge rate. The valves are reconfigured according to a distribution of the varying total valve area. The propulsion system includes a pressure vessel with valves and a controller for regulating the valve area according to a propellant mass flow discharge rate from the pressure vessel.
    Type: Application
    Filed: April 14, 2010
    Publication date: August 5, 2010
    Inventors: Cary Lee Cover, Sean Scott Stroud, Michael Joseph Piovoso, Timothy James Kelly
  • Propulsion thrust control system and method
    Patent number: 7716912
    Abstract: A propulsion thrust control system and method for controlling thrust in a rocket motor includes configuring valves of an energized rocket motor to an initial total valve area according to a total thrust command. The total thrust command is converted into a commanded propellant mass flow discharge rate. A varying total valve area is computed from an error between the commanded propellant mass flow discharge rate and a calculated propellant mass flow discharge rate. The valves are reconfigured according to a distribution of the varying total valve area. The propulsion system includes a pressure vessel with valves and a controller for regulating the valve area according to a propellant mass flow discharge rate from the pressure vessel.
    Type: Grant
    Filed: March 2, 2006
    Date of Patent: May 18, 2010
    Assignee: Alliant Techsystems Inc.
    Inventors: Cary Lee Cover, Sean Scott Stroud, Michael Joseph Piovoso, Timothy James Kelly