Patents by Inventor Yungtai Hsu

Yungtai Hsu 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: 6641187
    Abstract: A self-closing bag holder for a flexible bag. The bag holder has a pair of resilient arms for supporting the bag and a pair of resilient handles. Each arm is joined with a handle by a rocker, which provides a fixed angle between the arm and the handle. The other ends of the arms are releasably hinged together. The other ends of the handles are joined together such that they bow away from each other because of the fixed angle rockers. The rockers are pivotally joined together, such that upon compressing the handles, the rockers will pivot to cause the arms to expand and bow away from each other, thus opening the flexible bag. Upon release of the handles, the arms will retract toward each other, thus closing the bag, while the handle will regain its originally bowed shape. The self-closing feature of the bag holder allows an operator to open and close the bag without having to touch the bag itself Also, when no pressure is exerted on the handles, the arms and thus the bag will remain closed.
    Type: Grant
    Filed: February 15, 2002
    Date of Patent: November 4, 2003
    Inventor: Yungtai Hsu
  • Publication number: 20030155783
    Abstract: A self-closing bag holder for a flexible bag. The bag bolder has a pair of resilient arms for supporting the bag and a pair of resilient handles. Each arm is joined with a handle by a rocker, which provides a fixed angle between the arm and the handle. The other ends of the arms are releasably hinged together. The other ends of the handles are joined together such that they bow away from each other because of the fixed angle rockers. The rockers are pivotally joined together, such that upon compressing the handles, the rockers will pivot to cause the arms to expand and bow away from each other, thus opening the flexible bag. Upon release of the handles, the arms will retract toward each other, thus closing the bag, while the handle will regain its originally bowed shape. The self-closing feature of the bag holder allows an operator to open and close the bag without having to touch the bag itself. Also, when no pressure is exerted on the handles, the arms and thus the bag will remain closed.
    Type: Application
    Filed: February 15, 2002
    Publication date: August 21, 2003
    Inventor: Yungtai Hsu