Patents Assigned to Container Systems Corp.
  • Door construction for folding container
    Patent number: 4221302
    Abstract: An improved door construction for collapsible reusable shipping containers and the like incorporating provision for maintaining the strength and integrity of the container against the hydraulic action of flowable contents when loaded. The container includes a plurality of interlocking flange elements capable of relative sliding movement in a vertical direction, but resisting movement in a horizontal plane.
    Type: Grant
    Filed: August 12, 1977
    Date of Patent: September 9, 1980
    Assignee: Container Systems Corp.
    Inventor: Julius B. Kupersmit