Patents Examined by William W Dondero
  • Series spring blade tensioner
    Patent number: 8057333
    Abstract: A blade tensioner includes a blade shoe assembly with parallel stacked flat springs that pivots at one end and is supported in series by a spring loaded ramp at the opposite end. Providing a spring loaded ramp in series reduces the overall stiffness of the tensioner which enables a more uniform tensioning load as the tensioner takes up chain slack due to elongation from wear.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: November 15, 2011
    Assignee: BorgWarner Inc.
    Inventor: J. Christian Haesloop