Patents by Inventor Ronnie T. Brown

Ronnie T. Brown 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: 9758135
    Abstract: A ferritically nitrocarburized rotational member of a vehicle brake is disclosed, including a rotational member having a friction surface configured for braking engagement with a corresponding friction material. A compound zone is disposed at the friction surface. An exposed surface of the compound zone is exposed to an atmosphere. The area of the exposed surface includes from about 0 percent to about 14 percent graphite.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: September 12, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Michael D. Hanna, Michael L. Holly, Ronnie T. Brown, James A. Webster, Lisa G. Devoe, Donna Y. Sekulovski, Kee Hyuk Im
  • Patent number: 9127734
    Abstract: One exemplary embodiment of a brake rotor includes a cheek member, an intermediate portion, and a hub member. The intermediate portion may be located between the cheek and hub members, and may extend from either the cheek member or the hub member. The intermediate portion may have an exposed section with multiple openings located in the exposed section. The intermediate portion may also have multiple blades extending from inner surfaces of all or some of the openings. The blades cause airflow to pass through the openings to cool the intermediate portion.
    Type: Grant
    Filed: April 8, 2009
    Date of Patent: September 8, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Michael D. Hanna, Richard M. Kleber, Ronnie T. Brown, Charon L Morgan
  • Publication number: 20150096850
    Abstract: A ferritically nitrocarburized rotational member of a vehicle brake is disclosed, including a rotational member having a friction surface configured for braking engagement with a corresponding friction material. A compound zone is disposed at the friction surface. An exposed surface of the compound zone is exposed to an atmosphere. The area of the exposed surface includes from about 0 percent to about 14 percent graphite.
    Type: Application
    Filed: November 12, 2014
    Publication date: April 9, 2015
    Inventors: Michael D. Hanna, Michael L. Holly, Ronnie T. Brown, James A. Webster, Lisa G. Devoe, Donna Y. Sekulovski, Kee Hyuk Im
  • Publication number: 20110297495
    Abstract: A ferritically nitrocarburized rotational member of a vehicle brake is disclosed, including a rotational member having a friction surface configured for braking engagement with a corresponding friction material. A compound zone is disposed at the friction surface. An exposed surface of the compound zone is exposed to an atmosphere. The area of the exposed surface includes from about 0 percent to about 14 percent graphite.
    Type: Application
    Filed: June 3, 2010
    Publication date: December 8, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Michael D. Hanna, Michael L. Holly, Ronnie T. Brown, James A. Webster, Lisa G. Devoe, Donna Y. Sekulovski, Kee Hyuk Im
  • Publication number: 20100258394
    Abstract: One exemplary embodiment of a brake rotor includes a cheek member, an intermediate portion, and a hub member. The intermediate portion may be located between the cheek and hub members, and may extend from either the cheek member or the hub member. The intermediate portion may have an exposed section with multiple openings located in the exposed section. The intermediate portion may also have multiple blades extending from inner surfaces of all or some of the openings. The blades cause airflow to pass through the openings to cool the intermediate portion.
    Type: Application
    Filed: April 8, 2009
    Publication date: October 14, 2010
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Michael D. Hanna, Richard M. Kleber, Ronnie T. Brown, Charon L. Morgan