Patents by Inventor David C. S. Lam

David C. S. Lam 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).

  • Patent number: 5083666
    Abstract: Crates (1) for use in transporting a load of blocks or sheets of rubber having hinged support members (12) mounted in the rim (4). The members (12) include a hinged blade (14). Filled crates can be supported one on top of the other(s) in a stack with the blade (14) arranged to support the overlying crate. Empty crates can be nested in a compact condition with the blade (14) protruding slightly outwardly.
    Type: Grant
    Filed: May 23, 1989
    Date of Patent: January 28, 1992
    Inventor: David C. S. Lam
  • Patent number: 4872574
    Abstract: A container for packaging rubber sheets or blocks for sea transport is formed by a framework of generally L-shaped cross-section members comprising uprights and base members with a tubular rail joining the ends of the uprights. Gussets may be provided for strengthening the long sides of the container. The sides of the framework of the container 1 may be filled by a mesh structure of interlinked chains or bars. The container has a base which may be corrugated for strength or may be non-corrugated and may be provided with channels or gripps for receiving the forks of a forklift truck. Rectangular cross-section extension members may be provided at the corners of the base for additional stability.
    Type: Grant
    Filed: November 17, 1987
    Date of Patent: October 10, 1989
    Inventor: David C. S. Lam