Patents by Inventor Hui-Li Weng

Hui-Li Weng 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).

  • Stair climbing aid
    Patent number: 7950498
    Abstract: A stair climbing aid comprises two slide rails, an assist member, a control mechanism and two positioning assemblies. The slide rails and the assist member are assembled to handrails at both sides of the stairs. The control mechanism is disposed on the assist member to be controlled by the user. The positioning assemblies are disposed at both sides of the assist member, each positioning assembly is provided with an engaging portion to be engaged in the respective positioning portions of the slide rail. Thereby, an anti-slide effect is produced, so as to prevent the user from falling down the stairs and to help the user move from step to step safely.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: May 31, 2011
    Assignee: Nan Kai Institute of Technology
    Inventors: Jiin-Hwa Yang, Hui-Li Weng
  • Stair Climbing Aid
    Publication number: 20080264722
    Abstract: A stair climbing aid comprises two slide rails, an assist member, a control mechanism and two positioning assemblies. The slide rails and the assist member are assembled to handrails at both sides of the stairs. The control mechanism is disposed on the assist member to be controlled by the user. The positioning assemblies are disposed at both sides of the assist member, each positioning assembly is provided with an engaging portion to be engaged in the respective positioning portions of the slide rail. Thereby, an anti-slide effect is produced, so as to prevent the user from falling down the stairs and to help the user move from step to step safely.
    Type: Application
    Filed: April 24, 2008
    Publication date: October 30, 2008
    Inventors: Jiin-Hwa YANG, Hui-Li Weng