Patents by Inventor Curtis F. Harding

Curtis F. Harding 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: 9464808
    Abstract: A nozzle tip assembly and method characterized by the use of a retention device including at least one tab that cooperates with a ledge for coupling a nozzle shroud to a nozzle adaptor. The retention device can be used as a secondary retention feature to prevent nozzle separation and/or to enable the fuel injector to be repaired without having to replace the entire assembly. The latter advantage is of particular benefit when there is damage during assembly or when the nozzle tip assembly is being overhauled.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: October 11, 2016
    Assignee: Parker-Hannifin Corporation
    Inventors: Stephen C. Paskevich, Bryan T. Runkle, Curtis F. Harding, Jeffrey R. Lehtinen, Jie Qian, Fady Bishara
  • Publication number: 20100107653
    Abstract: A nozzle tip assembly and method characterized by the use of a retention device including at least one tab that cooperates with a ledge for coupling a nozzle shroud to a nozzle adaptor. The retention device can be used as a secondary retention feature to prevent nozzle separation and/or to enable the fuel injector to be repaired without having to replace the entire assembly. The latter advantage is of particular benefit when there is damage during assembly or when the nozzle tip assembly is being overhauled.
    Type: Application
    Filed: November 5, 2009
    Publication date: May 6, 2010
    Inventors: Stephen C. Paskevich, Bryan T. Runkle, Curtis F. Harding, Jeffrey R. Lehtinen, Jie Qian, Fady Bishara
  • Patent number: 6915638
    Abstract: A fuel injector for gas turbine engines includes an inlet fitting, a housing stem, and a spray nozzle. A pair of fuel passages in the stem deliver fuel in a primary (continuous) flow and a secondary (non-continuous or reduced) flow to primary and secondary discharge orifices in the nozzle. The fuel passages are defined by inner and outer concentric conduits, with the primary flow directed through the inner conduit, and the secondary flow directed through the outer conduit. Fins are provided unitary with the inner conduit along the length of the housing stem, and are fixed at their radial outer ends to the outer conduit. The fins provide structural support and thermally connect the inner and outer conduits. During low power operation, the fins transfer heat energy between the outer conduit to the inner conduit to cool the outer conduit and thermally protect the fuel in the secondary fuel passage.
    Type: Grant
    Filed: March 13, 2003
    Date of Patent: July 12, 2005
    Assignee: Parker-Hannifin Corporation
    Inventors: Bryan T. Runkle, Jie Qian, Curtis F. Harding
  • Publication number: 20030182945
    Abstract: A fuel injector for gas turbine engines includes an inlet fitting, a housing stem, and a spray nozzle. A pair of fuel passages in the stem deliver fuel in a primary (continuous) flow and a secondary (non-continuous or reduced) flow to primary and secondary discharge orifices in the nozzle. The fuel passages are defined by inner and outer concentric conduits, with the primary flow directed through the inner conduit, and the secondary flow directed through the outer conduit. Fins are provided unitary with the inner conduit along the length of the housing stem, and are fixed at their radial outer ends to the outer conduit. The fins provide structural support and thermally connect the inner and outer conduits. During low power operation, the fins transfer heat energy between the outer conduit to the inner conduit to cool the outer conduit and thermally protect the fuel in the secondary fuel passage.
    Type: Application
    Filed: March 13, 2003
    Publication date: October 2, 2003
    Inventors: Bryan T. Runkle, Jie Qian, Curtis F. Harding
  • Patent number: 5918628
    Abstract: A check valve includes an outer valve body and an inner poppet valve moveable relative to the valve body and spring-biased into a closed position. The inner poppet valve has first and second stage openings. The first stage preferably has a single, relatively small through-hole into the chamber of the poppet valve, while the second stage preferably has multiple openings of a larger diameter. The first and second stage openings are spaced axially along the poppet valve, with the first stage opening being located closer to the valve head of the poppet valve than the second stage openings. In the closed position, fluid flow is blocked through both the first and second stage openings. When the cracking force of the valve is exceeded and the valve head moves away from the valve seat, fill flow occurs through the first stage opening and is restricted through the second stage openings.
    Type: Grant
    Filed: April 21, 1998
    Date of Patent: July 6, 1999
    Assignee: Parker-Hannifin Corporation
    Inventor: Curtis F. Harding
  • Patent number: 4616784
    Abstract: An atomizing nozzle suitable for use with high-viscosity slurries wherein a body (10) and forming element (40) include passageways (18, 22 and 48) that lead to a conical chamber (65) having a discharge annulus (66). The slurry exits discharge annulus (66) in a cylindrical continuous film. The inside of the film is exposed to swirled, compressed gas from an internal bore (50) of forming element (40) and the outside of the film is exposed to swirled compressed gas in a swirl chamber (72) to atomize and mix the slurry.
    Type: Grant
    Filed: November 20, 1984
    Date of Patent: October 14, 1986
    Assignee: Parker Hannifin Corporation
    Inventors: Harold C. Simmons, Curtis F. Harding
  • Patent number: 4595143
    Abstract: A fuel nozzle wherein a swirl cone (36) is located between a housing (10) and a body (12). Body (12) cooperates with housing (10) to form an air chamber (32) and with cone (36) to form an inner annulus (40). Swirl vanes (34) are angularly mounted between cone (36) and body (12) such that air flowing from chamber (32) into annulus (40) forms a swirling flow pattern. Body (12) is provided with a fuel chamber (16) and radial passages (20) introduce fuel to the swirling air in inner annulus (40) to produce an atomized spray pattern.
    Type: Grant
    Filed: July 20, 1983
    Date of Patent: June 17, 1986
    Assignee: Parker-Hannifin Corporation
    Inventors: Harold C. Simmons, Curtis F. Harding
  • Patent number: 4365753
    Abstract: A gas turbine fuel injection nozzle is disclosed in which the secondary fuel is spread into a very thin film entirely within a region of low air momentum. The fuel is therefore not affected by turbulence, and this results in an evenly circumferentially distributed fuel film at the discharge orifice of the nozzle resulting in an even and extremely fine spray of fuel to enhance proper engine performance.
    Type: Grant
    Filed: August 22, 1980
    Date of Patent: December 28, 1982
    Assignee: Parker-Hannifin Corporation
    Inventors: Curtis F. Harding, Harold C. Simmons