Patents by Inventor Chang Yuan Xu

Chang Yuan Xu 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: 9499007
    Abstract: A binder ring metal (10) includes binder rings (12-16) portions of which are installed on frame assemblies (18a, 18b) installed in a side-by-side relationship within a shield (20). A lever (22) is operatively connected with a travel bar (24) for movement of the lever to effect opening or closing of the rings. A gear mechanism (G) includes a plurality of gear teeth (30) are formed on lever, and a plurality of gear teeth (32) are formed on an adjacent surface of the travel bar. These teeth mesh with each other so movement of the lever by a user effects movement of the travel bar to respectively unblock or block movement of the frame assemblies, so the binder ring can open or close.
    Type: Grant
    Filed: May 2, 2016
    Date of Patent: November 22, 2016
    Assignee: U.S. Ring Binder, L.P.
    Inventors: Paul Whaley, Chang Yuan Xu