Patents by Inventor Jack D. Fitzgerald

Jack D. Fitzgerald 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).

  • High strength particleboard having reinforcing strips
    Patent number: 5106666
    Abstract: Composite particleboards and methods for manufacturing these particleboards are provided in which a plurality of discrete lignocellulosic particles are bonded together to form a core and then hot pressed with a plurality of reinforced strips having a thickness of less than about 6.4 mm for improving the bending strength of the particleboard structure. Both the modulus of rupture and modulus of elasticity of particleboard materials are demonstrated to have been improved significantly.
    Type: Grant
    Filed: April 2, 1990
    Date of Patent: April 21, 1992
    Assignee: Union Camp Corporation
    Inventors: Jack D. Fitzgerald, George W. Doege, Jr.
  • Nuggets for heating and a method of making the same
    Patent number: 5071446
    Abstract: The invention discloses fuel nuggets with high heat value which is virtually dust-free, and a method of making the same. The nuggets are preferably made of scrap particleboard made of wood particles bonded together by a urea/formaldehyde adhesive. The scrap is hogged and shaped into roughly spherical nuggets of a preselected size suited for automated furnaces. The nuggets are then coated with an aqueous urea solution and then oven-dried to achieve a preselected moisture content.
    Type: Grant
    Filed: March 14, 1990
    Date of Patent: December 10, 1991
    Assignee: Union Camp Corporation
    Inventor: Jack D. Fitzgerald