Patents Assigned to Paper Coverting Machine Company
  • Surface winder with recycled mandrels and method
    Patent number: 5421536
    Abstract: A surface winder and method employing recycled mandrels wherein a frame provides a winding path, a first winding drum for continuously advancing a web in the path and positioned on one side of the path, a mandrel inserter for introducing mandrels sequentially into the path for contact with the web, a second winding drum on the frame on the other side the path for coacting with the first winding drum in developing a log and a stripper on the frame for stripping each mandrel sequentially out of its associated log.
    Type: Grant
    Filed: July 19, 1993
    Date of Patent: June 6, 1995
    Assignee: Paper Coverting Machine Company
    Inventors: James E. Hertel, Gerald W. Buxton, Lawrence J. Oliver
  • Method and apparatus for forming fluff pads for diapers and the like
    Patent number: 5097574
    Abstract: A method and apparatus for forming fluff pads and the like wherein fluff providing material webs are introduced into separate hammermills and then delivered through a plurality of ducts through a moving screen under vacuum and wherein the ducts are characterized by reverse bends to densify the particle stream at the outside of the curvature for generally perpendicular deposition on the screen.
    Type: Grant
    Filed: December 3, 1990
    Date of Patent: March 24, 1992
    Assignee: Paper Coverting Machine Company
    Inventors: James E. Hertel, John R. Merkatoris, Grantland A. Craig