Patents by Inventor Eric L. Schlevensky

Eric L. Schlevensky 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).

  • Multiple hoist synchronization apparatus and method
    Patent number: 6956339
    Abstract: A hoist synchronization apparatus and method using a master controller operating software that provides a pulse reference to a slave controller. The slave commands its motor to rotate at the speed conveyed by that pulse reference. The slave controller monitors the pulse feedback from both the master encoder and the slave's encoder and compensates for any position error by adjusting its motor output speed. In addition, the slave controller includes the capability to automatically resynchronize the hoists. Resynchronization is accomplished by storing position error generated when either the master or the slave is run independently and correcting for the error when both units are operated at a later time.
    Type: Grant
    Filed: June 10, 2003
    Date of Patent: October 18, 2005
    Assignee: Magnetek, Inc.
    Inventors: Aaron S. Kureck, Eric L. Schlevensky
  • Multiple hoist synchronization apparatus and method
    Patent number: 6598859
    Abstract: A hoist synchronization apparatus and method using a master controller operating software that provides a pulse reference to a slave controller. The slave commands its motor to rotate at the speed conveyed by that pulse reference. The slave controller monitors the pulse feedback from both the master encoder and the slave's encoder and compensates for any position error by adjusting its motor output speed. In addition, the slave controller includes the capability to automatically resynchronize the hoists. Resynchronization is accomplished by storing position error generated when either the master or the slave is run independently and correcting for the error when both units are operated at a later time.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: July 29, 2003
    Assignee: MagneTek, Inc.
    Inventors: Aaron S. Kureck, Eric L. Schlevensky