Patents by Inventor Leon W. Corley, Jr.

Leon W. Corley, Jr. 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).

  • Three-state magnet valve
    Patent number: 7222922
    Abstract: A three-state magnet valve for control of fluid flow from a source of fluid pressure. The three-state magnet valve has an application pilot solenoid electrically connectable to a control module, and an application valve for connecting the source of fluid pressure and to a braking device. The three-state magnet valve further has a release pilot solenoid valve electrically connectable to a control module, and a release valve to exhaust the braking device. The valves are interconnected and controlled so that source pressure can never be passed to exhaust.
    Type: Grant
    Filed: April 15, 2005
    Date of Patent: May 29, 2007
    Assignee: Wabtec Holding Corporation
    Inventor: Leon W. Corley, Jr.