Patents Assigned to E M S
  • Patent number: 5547147
    Abstract: The collapsible drum comprises flange plates associated with a hub made up of hinged elements, each of which comprises two portions and has end faces that are substantially perpendicular to a longitudinal direction of the portions, the portions having respective ends that face each other and that are connected together, and respective opposite ends that are connected to respective ones of the flange plates via resilient members.
    Type: Grant
    Filed: July 26, 1994
    Date of Patent: August 20, 1996
    Assignee: E M S
    Inventor: Pierre Georges
  • Patent number: 5467939
    Abstract: The collapsible drum comprises flange plates associated with a hub made up of hinged elements, each of which comprises two portions having respective ends that face each other and that are connected together, and respective opposite ends that are connected to respective ones of the flange plates via collapsible hinge means, and at least one reinforcing and locking member extending axially inside the hub and providing a resilient link tending to urge the flange plates towards each other.
    Type: Grant
    Filed: July 26, 1994
    Date of Patent: November 21, 1995
    Assignee: E M S
    Inventor: Pierre Georges