Patents by Inventor Cornelius G. Fitzgerald

Cornelius G. 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).

  • Process for bonding blends of cellulosic pulp and fusible synthetic pulp or fiber by high-speed dielectric heating and products produced thereby
    Patent number: 5139861
    Abstract: A process is disclosed for bonding blends of cellulosic fluff pulp and fusible synthetic pulp or fiber having a melting point less than 250.degree. C., by high-speed dielectric heating. The process works in the absence of any dielectric sensitizing material, but requires the resulting blend have a density between 0.005 and 0.50 g/cc so that the blend can be bonded in less than 15 seconds. The process is useful for producing disposable baby diapers, adult incontinence products and feminine pads.
    Type: Grant
    Filed: October 18, 1991
    Date of Patent: August 18, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Kenneth R. Williams, Cornelius G. Fitzgerald
  • Neomesophase formation
    Patent number: 4341621
    Abstract: An improved feedstock for carbon artifact manufacture, especially carbon fiber production, is made by reacting a carbonaceous isotropic graphitizable pitch with a dealkylation catalyst in the presence of an organic solvent system having a solubility parameter at 25.degree. C. of between about 8.0 to about 9.5 to provide a solvent insoluble fraction over and above that originally in the pitch which is suitable for carbon artifact manufacture.
    Type: Grant
    Filed: March 26, 1979
    Date of Patent: July 27, 1982
    Assignee: Exxon Research & Engineering Co.
    Inventor: Cornelius G. Fitzgerald