Patents Assigned to Cutting Edge, Inc.
  • Patent number: 5779236
    Abstract: A vacuum hold down conveyor system employing a vacuum table with a plurality of suction grooves and relief grooves extending parallel to a direction of travel. A vacuum generator is fluidly connected to the suction grooves to create a sub-ambient pressure in the suction grooves. A belt is translatable relative to the vacuum table to simultaneously occlude the suction and the relief grooves. The relief grooves are exposed to a pressure greater than the suction grooves to thereby reduce the net downward force on the belt as it translates across the vacuum table.
    Type: Grant
    Filed: September 6, 1996
    Date of Patent: July 14, 1998
    Assignee: Cutting Edge, Inc.
    Inventors: Marvin H. Duncan, Jr., Dan Haferman