Patents by Inventor Paul F. Lewis

Paul F. Lewis 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).

  • Patent number: 7557071
    Abstract: Wax-based lubricant coatings for conveyors, and in particular for container transporting conveyors, are provided. The lubricant coatings provide conveyor surfaces having low coefficients of friction. In one embodiment, the lubricant coatings are composed of a mixture of carnauba wax and at least one additional wax. Conveyors having the lubricant coatings applied thereto are also provided.
    Type: Grant
    Filed: October 21, 2004
    Date of Patent: July 7, 2009
    Assignee: Johnsondiversy, Inc.
    Inventors: Michael T. Sarkis, Paul F. Lewis, Carmine Savaglio
  • Patent number: 7091162
    Abstract: Lubricants for containers and for conveyors for transporting containers are provided. The lubricants provide container and conveyor surfaces having low coefficients of friction. In one embodiment, the lubricants comprise a cured coating containing hydrophobic polymers and waxes.
    Type: Grant
    Filed: July 3, 2003
    Date of Patent: August 15, 2006
    Assignee: JohnsonDiversey, Inc.
    Inventors: Paul F. Lewis, Jim J. Hilarides
  • Patent number: 7071153
    Abstract: The present invention is directed to a method of enhancing the appearance of a soiled porous surface. The inventive method includes applying a concentrated, alkaline, cleaning composition to the soiled porous surface. This concentrated, alkaline, cleaning composition is then allowed to remain on the surface for a period of time before it is rinsed with water. After drying, a maintainer composition is then applied to the surface. The maintainer composition includes a pore-filling component. The cleaning composition includes an alkaline source and, optionally, a solvent.
    Type: Grant
    Filed: April 29, 2004
    Date of Patent: July 4, 2006
    Assignee: JohnsonDiversey, Inc.
    Inventors: Paul F. Lewis, Nathan E. Ludtke
  • Publication number: 20030125226
    Abstract: A floor coating remover composition with abrasive and reduced slip properties under foot. Solid plastic, natural stone or other inorganic or organic grit is incorporated into a floor coating removing formulation to provide a coefficient of friction so that slippage under foot during use is reduced. In the instance of the presence of natural stone grit or other inorganic grit, a stabilizer may be employed to keep the grit in suspension.
    Type: Application
    Filed: January 9, 2003
    Publication date: July 3, 2003
    Inventor: Paul F. Lewis