Box Plait Patents (Class 112/145)
  • Apparatus for forming tucks in a piece of material and for securing those tucks by a heat-sealed reinforcement
    Patent number: 4353774
    Abstract: An automatic unit for the programmable tucking in of part of a piece of material and the automatic fixing of this tuck by a heat-sealed reinforcement comprises two machines arranged at an angle of 150.degree. relative to one another and symmetrical with respect to the median axis separating them.
    Type: Grant
    Filed: February 3, 1981
    Date of Patent: October 12, 1982
    Assignee: Vestra-Union, S.A.
    Inventor: Andre Zaehringer