Patents by Inventor Gerald L. Corbett

Gerald L. Corbett 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: 4239272
    Abstract: A rigging sling comprising a pair of sling members or lifting cables, and a separator member having a relatively stiff spreader cable pivotally connected to sleeves slidably positioned on each sling member. Each sling member has eyes at each end for receiving a lifting hook or the like. The spreader cable passes through an eye of each sling member. The sleeves include a hollow cylindrical shell positioned for sliding on the sling member between the eyes. In the preferred embodiment the spreader cable has a diameter approximately twice that of the sling cable members.
    Type: Grant
    Filed: November 20, 1979
    Date of Patent: December 16, 1980
    Inventor: Gerald L. Corbett