Patents by Inventor Stephan Hartman

Stephan Hartman 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).

  • Chain pin for hinge conveyor chains
    Publication number: 20060249358
    Abstract: A method of assembling a hinge conveyor chain includes providing adjacent conveyor links formed from a ferritic-pearlitic stainless steel, wherein the adjacent links have interdigitating link ends with openings for receiving a pin, and inserting a pin having a radially outwardly facing surface formed from a steel alloy with more than 0.6 wt. % of carbon and more than 12 wt. % of Cr through the openings of the interdigitating link ends to pivotally link the adjacent links.
    Type: Application
    Filed: July 10, 2006
    Publication date: November 9, 2006
    Inventors: Stephan Hartman, Gijsbertus Verduijn