Patents by Inventor Ruby J. Muir

Ruby J. Muir 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).

  • Patent number: 4219207
    Abstract: A maneuverable ski machine is provided having a seat frame supported by spaced skis and individual manual controls are provided for swinging the skis about vertical axes into "snow plow" stopping or turning positions. Banking devices automatically bank the skis in proportion to the amount of swinging movement. The controls are also effective to swing and bank the skis into "parallel" turning positions and to properly laterally locate the skier's center of gravity during execution of parallel turns.
    Type: Grant
    Filed: November 20, 1978
    Date of Patent: August 26, 1980
    Inventors: James R. Muir, Ruby J. Muir