Patents by Inventor Eric P Marcel

Eric P Marcel 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).

  • Spreader frame for cargo container
    Patent number: 7905528
    Abstract: In embodiments, a spreader frame for hoisting a container having a lifting block is provided which includes a rigid frame structure, a twist lock received by the rigid frame structure, the twist lock being rotated relative to the rigid frame structure between a locked position to engage the lifting block and an unlocked position to disengage from the lifting block, and a safety feature which cooperates with at least one of the rigid frame structure and the twist lock to retain the twist lock in the locked position from being rotated relative to the rigid frame structure absent personnel changing a position of the safety feature.
    Type: Grant
    Filed: May 23, 2007
    Date of Patent: March 15, 2011
    Inventor: Eric P Marcel