Patents by Inventor William A. Fessler

William A. Fessler 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).

  • Destruction of polychlorinated biphenyls during solvent distillation
    Patent number: 4477354
    Abstract: A method is provided for removing polychlorinated biphenyl compounds (PCB) from oil contaminated therewith comprising the steps of extracting said oil with organic solvent, separating the extract, and distilling the solvent from said extract in the presence of a base.
    Type: Grant
    Filed: September 7, 1982
    Date of Patent: October 16, 1984
    Assignee: Electric Power Research Institute
    Inventor: William A. Fessler
  • Electrical insulating composition
    Patent number: 4254007
    Abstract: An electrically insulating wire coating material comprised of the heat cured product of a mixture of polyvinylacetal and phenol-aldehyde resins, or a mixture of these resins with epoxy resins, and a catalyst from the special metal containing group of cyclic organic compounds known as chelates and which can be further defined as being a non-ionic inner complex salt. These materials give insulating coatings with improved flexibility and thermal aging properties.
    Type: Grant
    Filed: September 13, 1979
    Date of Patent: March 3, 1981
    Assignee: General Electric Company
    Inventors: Ralph G. Flowers, William A. Fessler
  • Polyamideimides and method for making
    Patent number: 3975345
    Abstract: Polyamideimides, resulting from the reaction of two moles of trimellitic anhydride, per mole of organic diamine, such as methylene dianiline, followed by contacting the resulting bis(N-4-carboxyphthalimido)organo reaction product with tolylene diisocyanate, have been found to be valuable dip coating compositions for electrical conductors. The polyamideimides also can be converted to electrocoating compositions having superior shelf stability.
    Type: Grant
    Filed: June 23, 1972
    Date of Patent: August 17, 1976
    Assignee: General Electric Company
    Inventor: William A. Fessler