Patents by Inventor Robert Causton

Robert Causton 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).

  • Powder metallurgical compositions and parts made therefrom
    Patent number: 7300489
    Abstract: Metallurgical powder compositions are provided that include calcium aluminate additives, i.e., calcium aluminate or calcium aluminate containing powders, to enhance the machinability and durability of compacted and sintered parts made therefrom. The compositions generally contain a metal-based powder, such as for example, an iron-based or nickel-based powder, that constitutes the major portion of the composition. Calcium aluminate additives are combined with the metal based powder by, for example, admixing or bonding. Optionally, common alloying powders, lubricants, binding agents, and other powder metallurgy additives can be combined with the metallurgical powder composition. The metallurgical powder composition is used by compacting it in a die cavity to produce a “green” compact that may then be sintered, preferably at relatively high temperatures.
    Type: Grant
    Filed: June 10, 2004
    Date of Patent: November 27, 2007
    Assignee: Hoeganaes Corporation
    Inventors: Christopher T. Schade, Denis Christopherson, Jr., Robert Causton
  • Powder metallurgical compositions and parts made therefrom
    Publication number: 20050274223
    Abstract: Metallurgical powder compositions are provided that include calcium aluminate additives, i.e., calcium aluminate or calcium aluminate containing powders, to enhance the machinability and durability of compacted and sintered parts made therefrom. The compositions generally contain a metal-based powder, such as for example, an iron-based or nickel-based powder, that constitutes the major portion of the composition. Calcium aluminate additives are combined with the metal based powder by, for example, admixing or bonding. Optionally, common alloying powders, lubricants, binding agents, and other powder metallurgy additives can be combined with the metallurgical powder composition. The metallurgical powder composition is used by compacting it in a die cavity to produce a “green” compact that may then be sintered, preferably at relatively high temperatures.
    Type: Application
    Filed: June 10, 2004
    Publication date: December 15, 2005
    Inventors: Christopher Schade, Denis Christopherson, Robert Causton