Patents by Inventor Kai-Fan HSUEH

Kai-Fan HSUEH 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).

  • Sheet-feeding device with multistage stop arms
    Patent number: 9580260
    Abstract: A feeding device is disclosed, which comprises a paper passage, a sheet-separating roller, a friction institution, and a stopper. The sheet-separating roller is disposed in the paper passage. The friction institution is disposed in the paper passage opposite to the sheet-separating roller. The stopper is disposed in the upstream side of the sheet-separating roller. The stopper includes an axle, a short arm, and a long arm. The short arm connects to the axle, and the axle acts as a fulcrum. The long arm and the short arm disposed to the axle coaxially. A threshold of the force for pushing the short arm is larger than a threshold of the force for pushing the long arm.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: February 28, 2017
    Assignee: Avision Inc.
    Inventors: Sung-Po Cheng, Kai-Fan Hsueh
  • SHEET-FEEDING DEVICE WITH MULTISTAGE STOP ARMS
    Publication number: 20160167902
    Abstract: A feeding device is disclosed, which comprises a paper passage, a sheet-separating roller, a friction institution, and a stopper. The sheet-separating roller is disposed in the paper passage. The friction institution is disposed in the paper passage opposite to the sheet-separating roller. The stopper is disposed in the upstream side of the sheet-separating roller. The stopper includes an axle, a short arm, and a long arm. The short arm connects to the axle, and the axle acts as a fulcrum. The long arm and the short arm disposed to the axle coaxially. A threshold of the force for pushing the short arm is larger than a threshold of the force for pushing the long arm.
    Type: Application
    Filed: December 9, 2015
    Publication date: June 16, 2016
    Inventors: Sung-Po CHENG, Kai-Fan HSUEH