Patents by Inventor Clyde R. Cain

Clyde R. Cain 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).

  • Cargo container interlock system
    Patent number: 3980185
    Abstract: Stackable cargo containers are provided with internal corner assemblies comprising rotatable shaft members which are engaged and turned by the turnable lift members of the conventional lifting crane rig or spreader. With two stacked containers, when the spreader is locked to the top container, the top container is unlocked with respect to the bottom container, and when the spreader is unlocked with respect to the top container the top container is locked to the bottom container.
    Type: Grant
    Filed: June 26, 1974
    Date of Patent: September 14, 1976
    Inventor: Clyde R. Cain