Patents by Inventor Burton F. Lewis

Burton F. Lewis 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: 4047413
    Abstract: An automatic metal-spinning machine utilizing a plurality of work spindles, which rotate on their own axes, adjacent respective parallel spinning-tool operating shafts rotatable with variable pressure to apply tools against workpieces on the spindles while all simultaneously and continuously rotate around a central column so that a plurality of metal blanks are progressively formed and several parts are completed as the spindles and tool operating shafts make one revolution around the central column.
    Type: Grant
    Filed: January 16, 1976
    Date of Patent: September 13, 1977
    Inventors: Burton F. Lewis, Alan Y. Lewis