Patents Assigned to Hasco Spring Industries, Inc.
  • Tension regulating device for belt drives
    Patent number: 5370586
    Abstract: There is provided a belt tensioning apparatus for maintaining the tension in the belt of a serpentine belt drive system. The belt tensioning apparatus utilizes a double wrap spiral spring which will approximately double the amount of travel of the tensioning apparatus for a given outside diameter. This significant increase in travel allows the tensioning device to be preset at a variety of initial loads to enable the same tensioner to be used over a broad range of applications.
    Type: Grant
    Filed: June 9, 1993
    Date of Patent: December 6, 1994
    Assignee: Hasco Spring Industries, Inc.
    Inventors: H. Jay Thomsen, William Ordo