Patents by Inventor Robert G. Schuelke

Robert G. Schuelke 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).

  • Water-resistant corrugated paperboard and method of preparing the same
    Patent number: 8728270
    Abstract: A method of preparing water-resistant corrugated paperboard includes providing a corrugated medium treated with a water-proofing agent on both sides thereof, and providing a liner treated with the water-proofing agent on at least an inner surface thereof. The liner and corrugated medium are adhered, with the inner surface of the liner adhered to the corrugated medium. The liner and corrugated medium are adhered with an adhesive composition comprising carrier starch, uncooked pearl starch, borax, a water-proofing resin, a penetration-enhancing additive, and water. The carrier starch comprises cooked starch and uncooked starch. The liner and corrugated medium are treated with the water-proofing agent prior to adhering the liner and corrugated medium. Due to the use of the particular adhesive composition for adhering the liner and the corrugated medium, use of liner treated with the water-proofing agent is possible with acceptable bonding and preservation of Cobb ratings.
    Type: Grant
    Filed: July 13, 2010
    Date of Patent: May 20, 2014
    Assignee: E-Cooler, L.L.C.
    Inventors: Robert G. Schuelke, Anthony L. Shoemaker
  • WATER-RESISTANT CORRUGATED PAPERBOARD AND METHOD OF PREPARING THE SAME
    Publication number: 20110008585
    Abstract: A method of preparing water-resistant corrugated paperboard includes providing a corrugated medium treated with a water-proofing agent on both sides thereof, and providing a liner treated with the water-proofing agent on at least an inner surface thereof. The liner and corrugated medium are adhered, with the inner surface of the liner adhered to the corrugated medium. The liner and corrugated medium are adhered with an adhesive composition comprising carrier starch, uncooked pearl starch, borax, a water-proofing resin, a penetration-enhancing additive, and water. The carrier starch comprises cooked starch and uncooked starch. The liner and corrugated medium are treated with the water-proofing agent prior to adhering the liner and corrugated medium. Due to the use of the particular adhesive composition for adhering the liner and the corrugated medium, use of liner treated with the water-proofing agent is possible with acceptable bonding and preservation of Cobb ratings.
    Type: Application
    Filed: July 13, 2010
    Publication date: January 13, 2011
    Inventors: Robert G. Schuelke, Anthony L. Shoemaker