Patents by Inventor Jeff Pfaendtner

Jeff Pfaendtner 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).

  • Ceramic masking material and application method for protecting turbine airfoil component surfaces during vapor phase aluminiding
    Patent number: 6884476
    Abstract: A masking material and a method for applying the masking material to preselected surfaces of a component to protect the surfaces to which the masking material is applied from exposure to a vapor phase of aluminum gas while a protective environmental coating is applied to other surfaces of the component. The component, such as found in the hot section of a gas turbine engine, typically has intricate internal passageways. A ceramic material is applied as a mask over preselected surfaces while leaving remaining surfaces of a component exposed. The component typically is a superalloy component, and the exposed surfaces are to be coated with an environmental protective coating. The surfaces are preselected on the basis of whether coating is desired on the surface. The ceramic material forms a continuous, crack-free mask on these preselected surfaces without obstructing the internal passageways. The ceramic material which forms a mask is stable at the elevated temperatures of environmental coating application.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: April 26, 2005
    Assignee: General Electric Company
    Inventors: Jeff Pfaendtner, James Ruud, Ted Grossman, Peter Meschter, Joseph Rigney
  • Ceramic masking material and application method for protecting turbine airfoil component surfaces during vapor phase aluminiding
    Publication number: 20040081767
    Abstract: A masking material and a method for applying the masking material to preselected surfaces of a component to protect the surfaces to which the masking material is applied from exposure to a vapor phase of aluminum gas while a protective environmental coating is applied to other surfaces of the component. The component, such as found in the hot section of a gas turbine engine, typically has intricate internal passageways. A ceramic material is applied as a mask over preselected surfaces while leaving remaining surfaces of a component exposed. The component typically is a superalloy component, and the exposed surfaces are to be coated with an environmental protective coating. The surfaces are preselected on the basis of whether coating is desired on the surface. The ceramic material forms a continuous, crack-free mask on these preselected surfaces without obstructing the internal passageways. The ceramic material which forms a mask is stable at the elevated temperatures of environmental coating application.
    Type: Application
    Filed: October 28, 2002
    Publication date: April 29, 2004
    Applicant: General Electric
    Inventors: Jeff Pfaendtner, James Ruud, Ted Grossman, Peter Meschter, Joseph Rigney