Patents by Inventor William J. Briggs

William J. Briggs 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).

  • Publication number: 20040189030
    Abstract: A roll handling hoist defining a vertical direction and an x-y plane perpendicular to the vertical direction. The roll handling hoist includes a rigid vertical support assembly, and a chuck assembly movably joined to the rigid vertical support assembly. The chuck assembly may be configured to move in the vertical direction and to be adjustable between a plurality of roll configurations. The roll handling hoist also includes a user control assembly joined to the vertical support assembly. The user control assembly may maintain a fixed position relative to the vertical support assembly when the chuck assembly is moved in the vertical direction.
    Type: Application
    Filed: March 31, 2003
    Publication date: September 30, 2004
    Inventors: William J. Briggs, Michael Haasl