Patents by Inventor David Waskiewicz

David Waskiewicz 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).

  • Fuel vapor detection system for vehicles
    Patent number: 7562559
    Abstract: An electric motor or generator is used to spin the vehicle's internal combustion engine while the engine is not running, in order to draw a vacuum within the vapor control system. Vacuum bleed off is then monitored to determine if an unacceptable condition in the control system may exist. The evaporative fuel emissions test may be conducted either while the vehicle is at rest or while under way in an electric drive mode of operation.
    Type: Grant
    Filed: April 3, 2006
    Date of Patent: July 21, 2009
    Assignee: Ford Global Technologies, LLC
    Inventors: Jae Chung, Marsha Wendel, David Waskiewicz
  • Fuel vapor detection system for vehicles
    Publication number: 20060174698
    Abstract: An electric motor or generator is used to spin the vehicle's internal combustion engine while the engine is not running, in order to draw a vacuum within the vapor control system. Vacuum bleed off is then monitored to determine if an unacceptable condition in the control system may exist. The evaporative fuel emissions test may be conducted either while the vehicle is at rest or while under way in an electric drive mode of operation.
    Type: Application
    Filed: April 3, 2006
    Publication date: August 10, 2006
    Inventors: Jae Chung, Marsha Wendel, David Waskiewicz
  • Fuel vapor detection system for vehicles
    Publication number: 20060053868
    Abstract: An electric motor or generator is used to spin the vehicle's internal combustion engine while the engine is not running, in order to draw a vacuum within the vapor control system. Vacuum bleed off is then monitored to determine if an unacceptable condition in the control system may exist. The evaporative fuel emissions test may be conducted either while the vehicle is at rest or while under way in an electric drive mode of operation.
    Type: Application
    Filed: September 16, 2004
    Publication date: March 16, 2006
    Inventors: Jae Chung, Marsha Wendel, David Waskiewicz