Patents by Inventor Charles A. Graves

Charles A. Graves 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).

  • Fuel nozzle with combined radial and axial bellows
    Patent number: 5307635
    Abstract: A fuel nozzle for the combustor of gas turbine engines includes evacuated radial and axial bellows concentrically mounted to the fuel passages to prevent coking of the fuel passages and maintain the structural integrity of the integral parts and particularly the weld joints and the method of construction is disclosed.
    Type: Grant
    Filed: October 29, 1992
    Date of Patent: May 3, 1994
    Assignee: United Technologies Corporation
    Inventors: Charles Graves, Todd Neill, Raman Ras, Kiran Patwari, Robert T. Mains, Curtis H. Scheuerman
  • Audio analgesic unit
    Patent number: 4082918
    Abstract: An audio analgesic unit for use in masking sounds and substituting another sound which includes earmuffs to be used by a dental patient in which speakers are arranged and connected to a patient operated remote control unit to control the sound levels and a master control unit to override the patient remote control unit and operated by an operator, such as a dentist. A beeper indicates operation mode change.
    Type: Grant
    Filed: January 21, 1977
    Date of Patent: April 4, 1978
    Inventors: Roland Wan-chan Chang, Charles A. Graves
  • Hammer
    Patent number: D436821
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: January 30, 2001
    Assignee: Target Brands, Inc.
    Inventors: Patrick Douglas, Charles Graves