Patents by Inventor Peter Pander

Peter Pander 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).

  • Method of and apparatus for maintaining a constant wall thickness for an extruded article
    Patent number: 4551289
    Abstract: An extruder is controlled in response to the thickness measurement of the extruded strand. The thickness measuring head is initially given a displacement transverse to the extrusion direction, preferably around the extruded strand and the output signals from the head are integrated to form a mean value around the periphery. A comparison of this mean value with the set point wall thickness value is then utilized to provide continuous correction of the output of the head which is utilized to regulate the extruder operation.
    Type: Grant
    Filed: February 13, 1984
    Date of Patent: November 5, 1985
    Assignee: Battenfeld Extrusionstechnik GmbH
    Inventors: Erwin Schwab, Graziano Parisi, Peter Pander