Patents by Inventor Dieter Welters

Dieter Welters 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).

  • Apparatus for lubricating tools on metal extrusion presses
    Patent number: 4426865
    Abstract: In a metal extrusion press, extrusion tools such as dies, mandrels, and closure members for billet receivers, are lubricated by bringing into contact with these tools, while the tools are hot, candles of lubricant material which melt on contact with the tools. The candles are moved into and out of engagement with the tools by a movable support operating automatically in the press cycle.
    Type: Grant
    Filed: October 14, 1981
    Date of Patent: January 24, 1984
    Assignee: SMS Schloemann-Siemag Aktiengesellschaft
    Inventors: Alfred Steinmetz, Klaus Exner, Dieter Welters