Patents Assigned to Force Pro
  • Pre-stressed tie rod and method of manufacture
    Patent number: 7220119
    Abstract: The present invention relates to a pre-stressed tie rod and method of manufacture. The pre-stressed tie rod can be used on injection molding machines to increase the length of the tie rod and movement of the platen, wherein the tie rods are loaded to restrict mold separation. The pre-stressed tie rods could also be used with other types of presses.
    Type: Grant
    Filed: February 28, 2005
    Date of Patent: May 22, 2007
    Assignee: Force Pro
    Inventors: Bryan R. Kirchmer, Derek Campbell