Patents by Inventor P. Daniel Schiller

P. Daniel Schiller 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).

  • Roll gap controller for regulating coating thickness
    Patent number: 5409732
    Abstract: A method for regulating the thickness of an applied coating. The method includes passing a web through two members which define a gap between them. A sensor measures periodic variations in the thickness of the coating on the web. An automatic controller analyzes information from the sensor and converts the information into gap adjusting signals. Piezoelectric or magnetostrictive translators adjust the size of the gap to compensate for repeating variations in coating thickness.
    Type: Grant
    Filed: December 1, 1993
    Date of Patent: April 25, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: William K. Leonard, Stephen W. Mohn, P. Daniel Schiller