Patents by Inventor Harvey Dahlgren

Harvey Dahlgren has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for high-speed calendering
    Patent number: 5357854
    Abstract: A sheet calendering method and apparatus including a calendering cylinder, a delivering cylinder, and a conveyor for transporting sheets between the calendering cylinder and the delivering cylinder; wherein the conveyor includes two flexible elongated members forming parallel endless loops around the calendering and delivering cylinders, a plurality of support members attached between the parallel loops, and a plurality of calendering plates each linked to an adjacent plate by the support members to form an endless belt.
    Type: Grant
    Filed: October 1, 1993
    Date of Patent: October 25, 1994
    Assignee: Epic Products International Corp.
    Inventors: Harvey Dahlgren, Scott R. Johnson
  • Apparatus for high speed calendering
    Patent number: 5275096
    Abstract: A sheet calendering method and apparatus including a calendering cylinder, a delivering cylinder, and a conveyor for transporting sheets between the calendering cylinder and the delivering cylinder; wherein the conveyor includes two flexible elongated members forming parallel endless loops around the calendering and delivering cylinders, a plurality of support members attached between the parallel loops, and a plurality of calendering plates each linked to an adjacent plate by the support members to form an endless belt.
    Type: Grant
    Filed: August 12, 1992
    Date of Patent: January 4, 1994
    Assignee: Epic Products International Corp.
    Inventors: Harvey Dahlgren, Scott R. Johnson