Patents by Inventor Philip J. Stelmashuk

Philip J. Stelmashuk 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).

  • Dual spindle NC chucking/turning machine
    Patent number: 4197769
    Abstract: A dual vertical spindle turning machine for simultaneously machining workpieces chucked on the respective spindles having a horizontally movable dual tool assembly including independent side-by-side tool slides, and independent drive motors for simultaneously moving the tool slides along a horizontal slideway of a vertically movable main slide. The tool slides have clearance therebetween to enable independent adjustment of either one or both of the tools by incremental energization of either one or both of the tool slide drive motors.
    Type: Grant
    Filed: May 5, 1978
    Date of Patent: April 15, 1980
    Assignee: The Motch & Merryweather Machinery Company
    Inventors: Edward E. Smith, Philip J. Stelmashuk