Patents by Inventor Walter Buttner

Walter Buttner 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).

  • Reusable spacecraft
    Patent number: 5730390
    Abstract: A reusable space craft having a disk-shaped casing which receives buoyancy upon horizontal travel through a gas atmosphere and three drive systems on the casing. A first drive system utilizes counter-rotating rotors driven by jet engines on the periphery. A second drive system utilizes a rocket rotor which can swing out from the both of the casing into an inclined position. The third drive system is a main thruster rocket at the center of the bottom fueled by an Si.sub.5 to Si.sub.9 silane propellant.
    Type: Grant
    Filed: November 13, 1995
    Date of Patent: March 24, 1998
    Assignee: Klaus Kunkel
    Inventors: Peter Plichta, Walter Buttner