Patents Assigned to WTA Inc.
  • Interleaved spiral wrapping of foam product and stretch film for packaging carbonless paper rolls
    Patent number: 5114012
    Abstract: A method and apparatus are provided for producing a foam wrapped package for protecting a roll of pressure-sensitive carbonless copy paper. Interleaved foam and film are wrapped under tension around the outer periphery of the roll of carbonless paper by selectively rotating the roll and separately feeding packaging foam and stretch film toward the rotating roll.
    Type: Grant
    Filed: October 22, 1990
    Date of Patent: May 19, 1992
    Assignee: WTA Inc.
    Inventors: Roger J. Mushinski, Charles E. Lewis, Lawrence J. Casey