Patents by Inventor Daniel Piel

Daniel Piel 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).

  • Device for controlling drive couplings of the axles of a locomotive
    Patent number: 4809616
    Abstract: Device for controlling drive couplings of motor bogie axles of a locomotive. The axles are individually driven by motors (4, 5) controlled by a control assembly receiving signals from sensors (6) which are constituted for measuring the vertical load of at least one motor axle and are mounted on the primary suspension of the axle.
    Type: Grant
    Filed: April 30, 1987
    Date of Patent: March 7, 1989
    Assignee: Creusot-Loire
    Inventor: Daniel Piel