Patents by Inventor John Randolph Pollard

John Randolph Pollard 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).

  • Adhesive, elastomeric gel impregnating composition
    Patent number: 6403685
    Abstract: An improved capacitor roll with alternating film and foil layers is impregnated with an adhesive, elastomeric gel composition. The gel composition is a blend of a plasticizer, a polyol, a maleic anhydride that reacts with the polyol to form a polyester, and a catalyst for the reaction. The impregnant composition is introduced to the film and foil layers while still in a liquid form and then pressure is applied to aid with impregnation. The impregnant composition is cured to form the adhesive, elastomeric gel. Pressure is maintained during curing.
    Type: Grant
    Filed: August 6, 2001
    Date of Patent: June 11, 2002
    Assignee: Sandia Corporation
    Inventors: David Glenn Shaw, John Randolph Pollard, Robert Aubrey Brooks
  • Adhesive, elastomeric gel impregnating composition
    Patent number: 6310760
    Abstract: An improved capacitor roll with alternating film and foil layers is impregnated with an adhesive, elastomeric gel composition. The gel composition is a blend of a plasticizer, a polyol, a maleic anhydride that reacts with the polyol to form a polyester, and a catalyst for the reaction. The impregnant composition is introduced to the film and foil layers while still in a liquid form and then pressure is applied to aid with impregnation. The impregnant composition is cured to form the adhesive, elastomeric gel. Pressure is maintained during curing.
    Type: Grant
    Filed: March 15, 2000
    Date of Patent: October 30, 2001
    Assignee: Sandia Corporation
    Inventors: David Glenn Shaw, John Randolph Pollard, Robert Aubrey Brooks