Patents by Inventor Edgar Howells

Edgar Howells 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).

  • Patent number: 6184459
    Abstract: A transformer is disclosed, including a tank housing a transformer core/coil assembly, a dielectric insulating fluid surrounding the core/coil assembly, the fluid comprising a vegetable oil, an antioxidant dissolved in the oil, and a low temperature additive blended into the oil, wherein the fluid defines a headspace above the fluid. The preferred embodiment includes an oxygen absorbing material contained in the tank and in contact with gases in the tank but isolated from contact with the dielectric fluid, the tank including an opening and a sealed plug in the opening, such that the oxygen absorbing material can be replaced through the opening upon removal of the sealed plug, and further includes a gas permeable polymer container sealed against the opening for supporting the oxygen absorbing material and an indicator in gas contact with the headspace and visible from outside the tank for indicating the presence of oxygen in the headspace.
    Type: Grant
    Filed: March 25, 1999
    Date of Patent: February 6, 2001
    Assignee: Cooper Industries Inc.
    Inventors: Charles Patrick McShane, Jerry L. Corkran, Richard A. Harthun, Gary A. Gauger, Kevin J. Rapp, Edgar Howells
  • Patent number: 6037537
    Abstract: A transformer is disclosed, including a tank housing a transformer core/coil assembly, a dielectric insulating fluid surrounding the core/coil assembly, the fluid comprising a vegetable oil, an antioxidant dissolved in the oil, and a low temperature additive blended into the oil, wherein the fluid defines a headspace above the fluid. The preferred embodiment includes an oxygen absorbing material contained in the tank and in contact with gases in the tank but isolated from contact with the dielectric fluid, the tank including an opening and a sealed plug in the opening, such that the oxygen absorbing material can be replaced through the opening upon removal of the sealed plug, and further includes a gas permeable polymer container sealed against the opening for supporting the oxygen absorbing material and an indicator in gas contact with the headspace and visible from outside the tank for indicating the presence of oxygen in the headspace.
    Type: Grant
    Filed: October 8, 1996
    Date of Patent: March 14, 2000
    Assignee: Cooper Industries, Inc.
    Inventors: Charles Patrick McShane, Jerry L. Corkran, Richard A. Harthun, Gary A. Gauger, Kevin J. Rapp, Edgar Howells
  • Patent number: D885479
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: May 26, 2020
    Assignee: Forum Education, LLC
    Inventors: Thomas Edgar Howell, David Phelps Pratt-Robson, Fábio Alexandre Bogarim Bernardo, Diogo Wahnon Silva Teixeira de Brito