Patents by Inventor Leif A. S. Henryson

Leif A. S. Henryson 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 handling palleted loads comprising bulk material contained in bags
    Patent number: 4280787
    Abstract: To a device for handling cut-open bags containing bulk material, by separating the bag material from the bulk material there is connected a screw conveyor having a hopper for receiving several bags of a pallet load and being arranged to supply the bags to the separating device at the same time tearing open the bags.
    Type: Grant
    Filed: June 21, 1979
    Date of Patent: July 28, 1981
    Assignee: AB Bergu Jarn- & Rorkonstruktioner
    Inventor: Leif A. S. Henryson
  • Method and apparatus for handling palleted loads comprising bulk material contained in bags
    Patent number: 4182592
    Abstract: To a device for handling cut-open bags containing bulk material, by separating the bag material from the bulk material there is connected a screw conveyor having a hopper for receiving several bags of a pallet load and being arranged to supply the bags to the separating device at the same time tearing open the bags.
    Type: Grant
    Filed: June 22, 1977
    Date of Patent: January 8, 1980
    Assignee: AB Bergu Jarn- & Rorkonstruktioner
    Inventor: Leif A. S. Henryson