Patents by Inventor Edward M. Maslowski

Edward M. Maslowski 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).

  • Gasketless drum
    Patent number: 6959831
    Abstract: A reusable sealable plastic drum incorporates a plastic drum body with a convex upper chime having a convex chime radius, a plastic lid having an annular, peripheral mating channel sized to accept the upper chime, the channel having an inner wall, an outer wall, a mouth for receiving the upper chime, and a base surface for engaging the upper chime, the base surface having a concave radius, which is matched to the convex chime radius, and a lockband surrounding the outer wall. Tightening of the lockband causes the concave base radius to fully engage the convex chime radius in a sealing relationship.
    Type: Grant
    Filed: July 6, 2001
    Date of Patent: November 1, 2005
    Assignee: Greif, Inc.
    Inventor: Edward M. Maslowski
  • Gasketless drum
    Publication number: 20030006234
    Abstract: A reusable sealable plastic drum incorporates
    Type: Application
    Filed: July 6, 2001
    Publication date: January 9, 2003
    Inventor: Edward M. Maslowski