Patents by Inventor Donald A. Kossuth

Donald A. Kossuth 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).

  • Roll-coating method and apparatus
    Patent number: 4741929
    Abstract: A roll-coating apparatus and method of using it, the apparatus having a pair of narrow rubber tires mounted to be driven by the roll-coater doctor roll, disposed to transfer a narrow band of coating material along the two opposite edge areas of a board which is subsequently coated throughout the full width of the board by the roll-coater main applicator roll.
    Type: Grant
    Filed: March 19, 1987
    Date of Patent: May 3, 1988
    Assignee: National Gypsum Company
    Inventor: Donald A. Kossuth
  • Curtain wall panel and method
    Patent number: 4646498
    Abstract: A laminated curtain wall panel is prepared by continuously disposing foam boards onto adhesively coated gypsum sheathing followed by a third layer consisting of a reinforcing mesh and a cementitious binder, as the product progresses on a conveyor. The laminated product is erected by screws which are forced through the panel by a screw gun which disposes the screw head firmly against the gypsum sheathing.
    Type: Grant
    Filed: December 5, 1985
    Date of Patent: March 3, 1987
    Assignee: National Gypsum Company
    Inventors: Joseph W. Schneller, Donald A. Kossuth, J. Stephen Robinson
  • Embossed gypsum board
    Patent number: 4631097
    Abstract: Predecorated gypsum board having an embossed design extending into the paper-covered front face and a utilitarian embossing extending into the paper-covered back face, preferably formed by embossing a laterally extending crepe design in the back paper with longitudinally extending narrow relatively unembossed strips at spaced positions across the width of the paper.
    Type: Grant
    Filed: March 11, 1982
    Date of Patent: December 23, 1986
    Assignee: National Gypsum Company
    Inventor: Donald A. Kossuth
  • Curtain wall panel and method
    Patent number: 4590733
    Abstract: A laminated curtain wall panel is prepared by continuously disposing foam boards onto adhesively coated gypsum sheathing followed by a third layer consisting of a reinforcing mesh and a cementitious binder, as the product progresses on a conveyor. The laminated product is erected by screws which are forced through the panel by a screw gun which disposes the screw head firmly against the gypsum sheathing.
    Type: Grant
    Filed: May 28, 1985
    Date of Patent: May 27, 1986
    Assignee: National Gypsum Company
    Inventors: Joseph W. Schneller, Donald A. Kossuth, J. Stephen Robinson
  • Treated gypsum wallboard paper
    Patent number: 4128699
    Abstract: Drying oils are used to improve strength and durability characteristics of gypsum wallboard paper with many unexpected additional advantages. Applied before board manufacture, critical porosity characteristics are left uninterrupted. Applied after board manufacture, shear strengths are obtained beyond expectations.
    Type: Grant
    Filed: October 3, 1977
    Date of Patent: December 5, 1978
    Assignee: National Gypsum Company
    Inventors: Donald R. Kole, Donald A. Kossuth
  • Gypsum set accelerator
    Patent number: 4019920
    Abstract: A gypsum set accelerator, produced by compression milling a mixture of ground gypsum rock and starch, and the addition thereof to an aqueous slurry of settable calcined gypsum such as in the forming of paper-covered gypsum wallboard.
    Type: Grant
    Filed: May 23, 1975
    Date of Patent: April 26, 1977
    Assignee: National Gypsum Company
    Inventors: Edward A. Burkard, Donald A. Kossuth