Patents by Inventor Mike Rucinski

Mike Rucinski 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).

  • Overvoltage suppression technique for variable frequency drives operating reciprocating loads
    Patent number: 7227330
    Abstract: A motor control for a reciprocating load includes overvoltage suppression. The motor control comprises a variable frequency drive (VFD) operatively connected to a power source for operating a motor to drive the reciprocating load. A sensor determines motor torque. A control unit is connected to the VFD and to the sensor and is adapted to control the VFD in a normal mode to operate the motor at a select reference frequency. The control unit predicts occurrence of a negative motor torque condition based on sensed motor torque and in response to a negative motor torque condition controls the VFD in a negative motor torque mode to operate the motor at a higher frequency than the select reference frequency to prevent the motor from entering a negative slip condition.
    Type: Grant
    Filed: July 14, 2005
    Date of Patent: June 5, 2007
    Assignee: Yaskawa Electric America, Inc.
    Inventors: Mahesh M. Swamy, Brian Geoffrey, Yoshiaki Yukihira, Mike Rucinski
  • Overvoltage suppression technique for variable frequency drives operating reciprocating loads
    Publication number: 20070013338
    Abstract: A motor control for a reciprocating load includes overvoltage suppression. The motor control comprises a variable frequency drive (VFD) operatively connected to a power source for operating a motor to drive the reciprocating load. A sensor determines motor torque. A control unit is connected to the VFD and to the sensor and is adapted to control the VFD in a normal mode to operate the motor at a select reference frequency. The control unit predicts occurrence of a negative motor torque condition based on sensed motor torque and in response to a negative motor torque condition controls the VFD in a negative motor torque mode to operate the motor at a higher frequency than the select reference frequency to prevent the motor from entering a negative slip condition.
    Type: Application
    Filed: July 14, 2005
    Publication date: January 18, 2007
    Inventors: Mahesh Swamy, Brian Geoffrey, Yoshiaki Yukihira, Mike Rucinski