Patents by Inventor John S. Waugh

John S. Waugh 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).

  • X-Ray tube target having pyrolytic amorphous carbon coating
    Patent number: 4335327
    Abstract: An X-ray tube including a tubular envelope having therein an anode target provided with a surface portion made of X-ray emissive material and with another surface portion coated with amorphous carbon material, and an electron emitting cathode disposed to beam electrons onto the surface portion of the target made of X-ray emissive material.
    Type: Grant
    Filed: April 18, 1980
    Date of Patent: June 15, 1982
    Assignee: The Machlett Laboratories, Incorporated
    Inventors: John S. Waugh, Richard G. Weber
  • Gradated target for X-ray tubes
    Patent number: 4227112
    Abstract: An X-ray tube including a tubular envelope having therein an X-ray target comprised of a support body made of a first material and provided with a composite surface layer comprising a controlled gradient of a second material disposed in the first material, one of the materials being an X-ray emissive material and the other of the materials being a heat absorbent material, and an electron emitting cathode disposed to beam electrons onto a focal spot area of the composite surface layer.
    Type: Grant
    Filed: November 20, 1978
    Date of Patent: October 7, 1980
    Assignee: The Machlett Laboratories, Inc.
    Inventors: John S. Waugh, Martin Braun