Patents by Inventor Mark C. Stephan

Mark C. Stephan 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).

  • Casting decoring device
    Patent number: 4577671
    Abstract: A casting decoring device to decore metal castings by vibration within an enclosure. The enclosure provides a dust and sound isolation of the casting from the environment with the casting held in an isolation fixture within. A time control circuit is provided to cycle the device according to the size and number of castings within to be treated.
    Type: Grant
    Filed: June 21, 1984
    Date of Patent: March 25, 1986
    Inventor: Mark C. Stephan