Patents Assigned to Vereinigte Papierwarenfabriken GmbH
  • Patent number: 5503611
    Abstract: A mailing container having upper and lower plain paper layers padded with at least two layers of globular paper is made with feed and unwinding devices for upper and lower paper webs and an unwinding device for the padded webs. A device connects the paper webs with padded webs adjacent an edge of the mailing containers. A device cuts the mailing containers to a predetermined format. A station for globular paper includes at least one supply roll to be unwound from the upper paper web and a lower paper web. A reactivatable hot melt adhesive is applied along predetermined zones, on at least one of the globular paper webs and on at least one web of the upper and lower paper webs before the webs are brought together. The hot melt adhesive applied to the predetermined zones between the upper and lower paper web and/or between the globular paper webs causes these webs to be permanently joined.
    Type: Grant
    Filed: December 27, 1993
    Date of Patent: April 2, 1996
    Assignee: Vereinigte Papierwarenfabriken GmbH
    Inventors: Karl-Heinz Richter, Georg Kucha
  • Patent number: 5021039
    Abstract: An apparatus for manufacturing air-cushion dispatch packages, the apparatus comprising an unwinding mechanism for paper webs and air-cushion foil webs. The apparatus introduces air-cushion foil webs between the paper webs and seals each paper web to a foil web over a large area. Transverse and longitudinal sealers seal the edges of the packages. After each sealing operation, the webs are subsequently cooled. Pulling rollers press the paper webs in the edge regions of the packages and advance the webs. Cutters cut the dispatch packages to the desired format. Web controllers correct deviation of the paper webs. A cycle controller is included.
    Type: Grant
    Filed: November 20, 1989
    Date of Patent: June 4, 1991
    Assignee: Vereinigte Papierwarenfabriken GmbH
    Inventors: Karl-Heinz Richter, Hubert Kurz, Georg Kuecha