Patents by Inventor Jonathan Jarrabet

Jonathan Jarrabet 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).

  • Method of forming a cast metal article
    Patent number: 7905273
    Abstract: An unfired ceramic base core having a first coefficient of thermal expansion is provided. A core element having a second coefficient of thermal expansion is positioned in an opening formed in the unfired ceramic base core. The opening in the unfired ceramic base core is filled with a filler material having a third coefficient of thermal expansion. The third coefficient of thermal expansion is greater than the first coefficient of thermal expansion and less than the second coefficient of thermal expansion. The ceramic base core is fired without cracking the base core and without cracking the filler material. The ceramic base core contains silica and zircon and has a silica content of 70% or less and a zircon content of 30% or more. The core element may be formed of a ceramic material or a refractory metal.
    Type: Grant
    Filed: September 5, 2007
    Date of Patent: March 15, 2011
    Assignee: PCC Airfoils, Inc.
    Inventors: Gerald C. Dodds, Jonathan Jarrabet, Lawrence D. Graham
  • Method of forming a cast metal article
    Publication number: 20090056902
    Abstract: An unfired ceramic base core having a first coefficient of thermal expansion is provided. A core element having a second coefficient of thermal expansion is positioned in an opening formed in the unfired ceramic base core. The opening in the unfired ceramic base core is filled with a filler material having a third coefficient of thermal expansion. The third coefficient of thermal expansion is greater than the first coefficient of thermal expansion and less than the second coefficient of thermal expansion. The ceramic base core is fired without cracking the base core and without cracking the filler material. The ceramic base core contains silica and zircon and has a silica content of 70% or less and a zircon content of 30% or more. The core element may be formed of a ceramic material or a refractory metal.
    Type: Application
    Filed: September 5, 2007
    Publication date: March 5, 2009
    Inventors: Gerald C. Dodds, Jonathan Jarrabet, Lawrence D. Graham