Patents by Inventor Dale L. Ehnes

Dale L. Ehnes 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).

  • Web processing method and apparatus
    Patent number: 6991717
    Abstract: The present invention relates to a web handling apparatus and process ideally suited for applications involving wet chemistry. The invention involves the horizontal processing of webs in processing containers. The web is redirected into the processing container by inserting a cassette across the web and into the processing container. The cassette includes at least one functional fluid element that facilitates processing of the web. The web handling practices of the invention improve the quality of the processed web. The invention is preferably used in electrodeposition processes.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: January 31, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Gregory F. King, John S. Huizinga, James N. Dobbs, Luther E. Erickson, Daniel H. Carlson, Dale L. Ehnes, Gary A. Shreve
  • Web processing method and apparatus
    Publication number: 20030188965
    Abstract: The present invention relates to a web handling apparatus and process ideally suited for applications involving wet chemistry. The invention involves the horizontal processing of webs in processing containers. The web is redirected into the processing container by inserting a cassette across the web and into the processing container. The cassette includes at least one functional fluid element that facilitates processing of the web. The web handling practices of the invention improve the quality of the processed web. The invention is preferably used in electrodeposition processes.
    Type: Application
    Filed: April 5, 2002
    Publication date: October 9, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Gregory F. King, John S. Huizinga, James N. Dobbs, Luther E. Erickson, Daniel H. Carlson, Dale L. Ehnes, Gary A. Shreve