Patents by Inventor Ruey C. Dempsey

Ruey C. Dempsey 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).

  • Touch down of blood pump impellers
    Publication number: 20040228724
    Abstract: A blood pump having rotor and/or stator touch down zones to prevent pump failure or hernolysis which can occur if the rotor comes into contact with the stator due to power failure or mechanical shock. The touch down zones can include forming, or coating, portions of adjacent surfaces of the stator and rotor which can come into contact if a rotor touch down occurs. The materials used to form or coat the touch down zones can have properties which ensure that no consequential damage to the contacting surfaces occurs.
    Type: Application
    Filed: May 19, 2004
    Publication date: November 18, 2004
    Inventors: Christopher D. Capone, Ruey C. Dempsey, Marlin S. Heilman, Steve A. Kolenik, Daniel R. Moore, Carl M. Parisi, Edward K. Prem, Richard A. Sofranko, David Borzelleca, Greg Burgreen, John A. Holmes, Zhongjun Wu, Ralph Scott Hebbert, James Antaki
  • Touch down of blood pump impellers
    Patent number: 6761532
    Abstract: A blood pump having rotor and/or stator touch down zones to prevent pump failure or hemolysis which can occur if the rotor comes into contact with the stator due to power failure or mechanical shock. The touch down zones can include forming, or coating, portions of adjacent surfaces of the stator and rotor which can come into contact if a rotor touch down occurs. The materials used to form or coat the touch down zones can have properties which ensure that no consequential damage to the contacting surfaces occurs.
    Type: Grant
    Filed: March 14, 2002
    Date of Patent: July 13, 2004
    Assignee: Vascor, Inc.
    Inventors: Christopher D. Capone, Ruey C. Dempsey, Marlin S. Heilman, Steve A. Kolenik, Daniel R. Moore, Carl M. Parisi, Edward K. Prem, Richard A. Sofranko, David C. Borzelleca, Greg Burgreen, John A. Holmes, Zhongjun Wu, Ralph Scott Hebbert, James Antaki
  • Touch down of blood pump impellers
    Publication number: 20030021683
    Abstract: A blood pump having rotor and/or stator touch down zones to prevent pump failure or hemolysis which can occur if the rotor comes into contact with the stator due to power failure or mechanical shock. The touch down zones can include forming, or coating, portions of adjacent surfaces of the stator and rotor which can come into contact if a rotor touch down occurs. The materials used to form or coat the touch down zones can have properties which ensure that no consequential damage to the contacting surfaces occurs.
    Type: Application
    Filed: March 14, 2002
    Publication date: January 30, 2003
    Inventors: Christopher D. Capone, Ruey C. Dempsey, Marlin S. Heilman, Steve A. Kolenik, Daniel R. Moore, Carl M. Parisi, Edward K. Prem, Richard A. Sofranko, David C. Borzelleca, Greg Burgreen, John A. Holmes, Zhongjun Wu, Ralph Scott Hebbert, James Antaki