Patents Assigned to Greif Brothers Corporation
  • Drum with self-supporting liner
    Patent number: 4982867
    Abstract: A two-part drum includes a blow molded self supporting plastic liner with circumferential reinforcing grooves, and a shell. The shell and the liner have matching cross-sections defined by curved sidewalls and curved sections cooperating to form a nominally rectangular or square cross-section.
    Type: Grant
    Filed: March 2, 1990
    Date of Patent: January 8, 1991
    Assignee: Greif Brothers Corporation
    Inventors: Robert A. Dubois, Richard A. Caron
  • Fast flo drums
    Patent number: 4971241
    Abstract: A drum for transporting viscous fluids and the like is disclosed. The improvement of this drum consists of a bottom assembly which breaks away from the bottom closure element when a force is applied to the bottom by a ram. The break away bottom is forced up through the drum by a ram, thereby forcing the contents out through the top of the drum.
    Type: Grant
    Filed: January 3, 1990
    Date of Patent: November 20, 1990
    Assignee: Greif Brothers Corporation
    Inventor: Rex E. Wagers