Patents by Inventor Stephen Wesley Ballard

Stephen Wesley Ballard 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).

  • Radiation Shielding Wood Or Laminate Faced Door Having A High Fire Rating And Method For Making Same
    Publication number: 20090314428
    Abstract: A radiation shielding wood or laminate faced door having a high fire rating and method for making same are disclosed. The radiation shielding door comprises a non-combustible core having a first face, a second face. A supporting material is in contact with the non-combustible core. A first radiation shield is in contact with the first face of the non-combustible core. An intumescent material is in contact with the supporting material. The method of manufacturing a radiation shielding door includes the steps of providing an non-combustible core having a first face, a second face; securing a supporting material to the non-combustible core; adhering a first radiation shield to the first face of the non-combustible core; and providing an intumescent material to the supporting material.
    Type: Application
    Filed: August 24, 2009
    Publication date: December 24, 2009
    Inventors: Leonard Pascal Roberts, IV, Stephen Wesley Ballard
  • Radiation shielding wood or laminate faced door having a high fire rating and method for making same
    Patent number: 7598460
    Abstract: A radiation shielding wood or laminate faced door having a high fire rating and method for making same are disclosed. The radiation shielding door comprises a non-combustible core having a first face, a second face. A supporting material is in contact with the non-combustible core. A first radiation shield is in contact with the first face of the non-combustible core. An intumescent material is in contact with the supporting material. The method of manufacturing a radiation shielding door includes the steps of providing an non-combustible core having a first face, a second face; securing a supporting material to the non-combustible core; adhering a first radiation shield to the first face of the non-combustible core; and providing an intumescent material to the supporting material.
    Type: Grant
    Filed: October 28, 2005
    Date of Patent: October 6, 2009
    Inventors: Leonard Pascal Roberts, IV, Stephen Wesley Ballard