Patents by Inventor Stig F. Edner

Stig F. Edner 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).

  • Patent number: 4310089
    Abstract: A conveyor for transport of bags of refuse comprising a feed tube in which bags of refuse are introduced and transported from one end to the other and a feed screw in the tube for driving the bags of refuse through the tube. The feed screw is constructed as a helix forming successive spaced flanges and the pitch of the helix is such that the space between successive flanges will accommodate a bag of refuse of predetermined maximum overall size. The feed screw is eccentrically journaled in the feed tube and is in tangential contact at the bottom thereof. A charging device for introducing the bags of refuse into the feed tube comprises a vertical tube with an inlet unit which limits the size of the bag of refuse which can be introduced to that which can be accommodated between the flanges of the helix.
    Type: Grant
    Filed: April 4, 1980
    Date of Patent: January 12, 1982
    Assignee: Platmanufaktur AB
    Inventors: Leif S. Bondeson, Stig F. Edner