Patents by Inventor Desmond F. Edwards

Desmond F. Edwards 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).

  • Expanders for the filling of sacks and bags
    Patent number: 4479344
    Abstract: A bag expander for a flexible bag comprising a frame of two U-shaped rods or wires which are slidably connected so that the frame can be expanded when placed inside the bag mouth. Loops on the ends of each frame member slide on the limbs of the other frame member. U-shaped leg members of rod or wire are pivoted by the ends of the limbs to the bases of the frame members respectively so that the frame can be supported above ground. To slow the expander the frame members are telescoped together and the leg members are folded to lie side by side with the frame members.
    Type: Grant
    Filed: March 31, 1982
    Date of Patent: October 30, 1984
    Assignee: Codel International Ltd.
    Inventor: Desmond F. Edwards