Patents by Inventor Paul J. Toftness

Paul J. Toftness 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 high speed coating pigment-containing liquid coating materials
    Patent number: 6666946
    Abstract: Methods of high speed coating a pigment-containing liquid coating material onto a substrate so as to avoid visible pigment separation in the coating material in its as coated state. In the method, a pigment-containing liquid coating material is applied to a substrate, while the substrate is moving at a high line speed of at least about 15.24 m/min., to form a coated layer. The coating material is applied to the substrate along a substantially straight, dynamic wetting line where the coating material first contacts the moving substrate. The coating material is of the type that will exhibit visible pigment separation on its interface surface when the coating material is coated onto the fast moving substrate, without the use of a substantially straight wetting line. The wetting line is substantially straight when a significant amount of visible pigment separation does not occur at the chosen high line speed.
    Type: Grant
    Filed: March 14, 2001
    Date of Patent: December 23, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Mikhail L. Pekurovsky, Shannon D. Sharp, Paul J. Toftness, Ian D. Gates, James A. Smart
  • Method of high speed coating pigment-containing liquid coating materials
    Publication number: 20020129766
    Abstract: Methods of high speed coating a pigment-containing liquid coating material onto a substrate so as to avoid visible pigment separation in the coating material in its as coated state. In the method, a pigment-containing liquid coating material is applied to a substrate, while the substrate is moving at a high line speed of at least about 15.24 m/min., to form a coated layer. The coating material is applied to the substrate along a substantially straight, dynamic wetting line where the coating material first contacts the moving substrate. The coating material is of the type that will exhibit visible pigment separation on its interface surface when the coating material is coated onto the fast moving substrate, without the use of a substantially straight wetting line. The wetting line is substantially straight when a significant amount of visible pigment separation does not occur at the chosen high line speed.
    Type: Application
    Filed: March 14, 2001
    Publication date: September 19, 2002
    Inventors: Mikhail L. Pekurovsky, Shannon D. Sharp, Paul J. Toftness, Ian D. Gates, James A. Smart