Patents Assigned to Steward Advanced Materials, Inc.
  • Publication number: 20100183816
    Abstract: A method for making ferrite powder may include providing ferrite feed materials in a form of particles, such as having different sizes and irregular shapes. The method may further include exposing the ferrite feed materials to a low velocity oxygen-fueled (LVOF) flame spray. This may provide a more spherical shape to irregularly shaped particles to thereby make the ferrite powder. An apparatus for making ferrite powder may include a feeder for ferrite feed materials and a LVOF flame spray system for exposing the ferrite feed materials to the flame spray.
    Type: Application
    Filed: February 16, 2007
    Publication date: July 22, 2010
    Applicant: Steward Advanced Materials, Inc.
    Inventors: Danny R. Smith, Henry G. Paris, Jeffrey A. Merker
  • Patent number: 7118728
    Abstract: A method for making ferrite powder may include providing ferrite feed materials in a form of particles having different sizes and irregular shapes, and exposing the ferrite feed materials to a plasma to provide a more spherical shape to irregularly shaped particles to thereby make the ferrite powder. An apparatus for making ferrite powder may include a feeder for ferrite feed materials and a plasma generator for exposing the ferrite feed materials to a plasma.
    Type: Grant
    Filed: May 7, 2003
    Date of Patent: October 10, 2006
    Assignee: Steward Advanced Materials, Inc.
    Inventors: Henry G. Paris, Danny R. Smith
  • Patent number: 6890971
    Abstract: A method for making a radiation absorbing material (RAM) coating may include providing an iron-silicon alloy powder, forming the iron-silicon alloy powder into flakes, and passivating the flakes. The method may further include selecting passivated flakes having a desired size, and combining the selected passivated flakes with a carrier to provide the RAM coating. The coating may be applied to a substrate to impart the radiation absorbing property thereto.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: May 10, 2005
    Assignee: Steward Advanced Materials, Inc.
    Inventors: Henry G. Paris, Danny R. Smith, Scott F. Smith