Patents by Inventor Fritz Witteck

Fritz Witteck 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).

  • Feed mechanism for pilger rolling mills
    Patent number: 4100786
    Abstract: A feeder is acted upon by opposing hydraulic drives and a spindle drive limits the advance. Hydraulic buffers are interposed either between the spindles and the feeder or between a carriage carrying the spindle drive and the machine bed. The buffer biasing force exceeds the force exerted by the feeder advance upon the feeder. The rate of buffer response is tracked separately.
    Type: Grant
    Filed: April 20, 1977
    Date of Patent: July 18, 1978
    Assignee: Mannesmann Aktiengesellschaft
    Inventors: Walter Vom Dorp, Hans Georg Ritter, Fritz Witteck