Patents by Inventor Donald G. Bauer

Donald G. Bauer 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 for smoothening a paper web before coating
    Publication number: 20020060022
    Abstract: A paper web is smoothened by passing the web through a pre-calender device on a paper machine before the application of a coating. The pre-calender device comprises at least one pair of steel rolls, one of which is heated, and a liquid application device which applies a thin film of water to the surface of the web which contacts the heated roll before the web enters the nip between the rolls. The web is then dried after exiting the nip either by wrapping the heated roll and/or by applying heat externally to the web.
    Type: Application
    Filed: February 23, 2001
    Publication date: May 23, 2002
    Inventor: Donald G. Bauer
  • Moisture application system for a paper web
    Patent number: 6280574
    Abstract: The moisture application system of the present invention comprises in combination a first means for applying liquid to a paper web and a second means in contact with the web for scraping off excess liquid and spreading the liquid uniformly across the paper web. The moisture application system of the present invention is particularly useful when combined with a machine calender for finishing a paper web.
    Type: Grant
    Filed: April 23, 1999
    Date of Patent: August 28, 2001
    Assignee: Westvaco Corporation
    Inventor: Donald G. Bauer