Patents by Inventor Fred J. Dimasi

Fred J. Dimasi 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: 6062657
    Abstract: A system and method for providing braking to a vehicle having at least two brake sets intended to deliver braking forces for a decelerating rate in response to a braking force request wherein each brake set has surplus braking available. In the event one brake set fails or becomes unavailable, then the surplus available in the other braking set may be utilized to satisfy this deficit, thereby providing the requested braking rate to the vehicle.
    Type: Grant
    Filed: April 21, 1998
    Date of Patent: May 16, 2000
    Assignee: DaimlerChrysler Rail Systems (North America) Inc.
    Inventor: Fred J. Dimasi
  • Patent number: 5713541
    Abstract: An electric power vehicle includes a propulsion system connected to a direct current (DC) source via a supply line. The propulsion system converts the DC supplied via the supply line to an AC electrical power to operate an AC motor at a desired level. An electromagnetic interference detection system for the vehicle includes an EMI processor connected to a current transducer and the propulsion system. The transducer detects AC signals appearing on the supply line and provides an output to the EMI processor. The EMI processor determines the frequency, amplitude and duration of the detected AC signals and causes the propulsion system to adjust the AC electrical power supplied to the motor as a function thereof.
    Type: Grant
    Filed: February 13, 1997
    Date of Patent: February 3, 1998
    Assignee: ABB Daimler-Benz Transportation (North America) Inc.
    Inventors: William E. Schmitz, Pierre A. Zuber, William M. Truman, Fred J. Dimasi, Richard P. Ames
  • Patent number: 4774669
    Abstract: A train control and monitoring system detects operating errors in controlled devices in each car and disables a car propulsion system if an error is detected. Operator reset is employed to reactivate a car, but operator reset control is disabled if a limit error count is reached and in that event only a supervisor reset can reactivate the car. When a car performs with good behavior through a power/brake cycle, the error count is decremented by one count.
    Type: Grant
    Filed: June 19, 1986
    Date of Patent: September 27, 1988
    Assignee: Westinghouse Electric Corp.
    Inventors: William E. Schmitz, Fred J. Dimasi