Patents by Inventor John D. Webster

John D. Webster 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: 6649096
    Abstract: The invention is a method of making a foam filled honeycomb core structure comprising the steps of: 1) providing a honeycomb core billet; 2) reinforcing the honeycomb core with foam; 3) placing the foam filled billet in mold having a curved mold surface; 4) creep forming the foam filled billet to the general shape of the structure by applying a load to the foam filled billet; and 5) machining the creep formed billet to the actual shape of the structure.
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: November 18, 2003
    Assignee: Lockheed Martin Corporation
    Inventor: John D. Webster
  • Publication number: 20030020195
    Abstract: The invention is a method of making a foam filled honeycomb core structure comprising the steps of: 1) providing a honeycomb core billet; 2) reinforcing the honeycomb core with foam; 3) placing the foam filled billet in mold having a curved mold surface; 4) creep forming the foam filled billet to the general shape of the structure by applying a load to the foam filled billet; and 5) machining the creep formed billet to the actual shape of the structure.
    Type: Application
    Filed: July 30, 2001
    Publication date: January 30, 2003
    Applicant: Lockheed Martin Corporation
    Inventor: John D. Webster
  • Patent number: 4457731
    Abstract: A method of processing regunned cathode ray tubes by exhausting/baking the tube, aging the cathode, and only then flashing the getter. Finally, the gettered tube is high voltage conditioned before testing.
    Type: Grant
    Filed: September 28, 1982
    Date of Patent: July 3, 1984
    Assignee: U.S. Philips Corporation
    Inventors: David J. Patrickson, John D. Webster, Edward Schwartz
  • Patent number: 4304527
    Abstract: A system for pumping an abrasive or corrosive fluid at high pressure and with a variable delivery rate. The system comprises raising the pressure in a non-corrosive and non-abrasive liquid in a pressure raising means comprising pump means and at least two intermediate cylinders containing floating pistons. The pressure is transferred to the abrasive or corrosive fluid in pressure transfer vessels. A valve arrangement controls the flow of non-abrasive and non-corrosive liquid to the intermediate cylinders and return means are provided for returning the floating pistons after each stroke. The valve arrangement is controlled in dependence on the positions of the floating pistons in their intermediate cylinders.The system is particularly useful for supplying clay slurry to a high pressure plate filter press.
    Type: Grant
    Filed: April 11, 1979
    Date of Patent: December 8, 1981
    Assignee: English Clays Lovering Pochin & Company Ltd.
    Inventors: Thomas J. Jewell, John D. Webster