Patents by Inventor Darin R. Kohles

Darin R. Kohles 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).

  • Cryogenic solid hybrid rocket engine and method of propelling a rocket
    Patent number: 6101808
    Abstract: A cryogenic solid hybrid engine with a solid propellant chamber, a first propellant within such chamber in which the first propellant is in solid form in the chamber and is in fluid form at room temperature, a coolant fluid chamber and a coolant fluid in the coolant fluid chamber being maintained at a temperature blow the freezing point of the first propellant. The invention also relates to a method for propelling a rocket and a method for forming a solid propellant grain for use in a cryogenic solid hybrid rocket engine.
    Type: Grant
    Filed: May 27, 1999
    Date of Patent: August 15, 2000
    Assignee: Orbital Technologies Corporation
    Inventors: William H. Knuth, Eric E. Rice, Darin R. Kohles, Christopher P. St. Clair, Daniel J. Gramer